diff options
Diffstat (limited to 'Documentation')
75 files changed, 1145 insertions, 538 deletions
diff --git a/Documentation/CodingGuidelines b/Documentation/CodingGuidelines index ef67b53f7..b99fa87f6 100644 --- a/Documentation/CodingGuidelines +++ b/Documentation/CodingGuidelines @@ -91,13 +91,13 @@ For shell scripts specifically (not exhaustive): E.g.: my_function () { - As to use of grep, stick to a subset of BRE (namely, no \{m,n\}, - [::], [==], nor [..]) for portability. + [::], [==], or [..]) for portability. - We do not use \{m,n\}; - We do not use -E; - - We do not use ? nor + (which are \{0,1\} and \{1,\} + - We do not use ? or + (which are \{0,1\} and \{1,\} respectively in BRE) but that goes without saying as these are ERE elements not BRE (note that \? and \+ are not even part of BRE -- making them accessible from BRE is a GNU extension). diff --git a/Documentation/Makefile b/Documentation/Makefile index 91a12c7e5..fc6b2cf9e 100644 --- a/Documentation/Makefile +++ b/Documentation/Makefile @@ -2,6 +2,9 @@ MAN1_TXT = MAN5_TXT = MAN7_TXT = +TECH_DOCS = +ARTICLES = +SP_ARTICLES = MAN1_TXT += $(filter-out \ $(addsuffix .txt, $(ARTICLES) $(SP_ARTICLES)), \ @@ -37,12 +40,12 @@ MAN_HTML = $(patsubst %.txt,%.html,$(MAN_TXT)) OBSOLETE_HTML = git-remote-helpers.html DOC_HTML = $(MAN_HTML) $(OBSOLETE_HTML) -ARTICLES = howto-index +ARTICLES += howto-index ARTICLES += everyday ARTICLES += git-tools ARTICLES += git-bisect-lk2009 # with their own formatting rules. -SP_ARTICLES = user-manual +SP_ARTICLES += user-manual SP_ARTICLES += howto/new-command SP_ARTICLES += howto/revert-branch-rebase SP_ARTICLES += howto/using-merge-subtree @@ -60,7 +63,8 @@ SP_ARTICLES += howto/maintain-git API_DOCS = $(patsubst %.txt,%,$(filter-out technical/api-index-skel.txt technical/api-index.txt, $(wildcard technical/api-*.txt))) SP_ARTICLES += $(API_DOCS) -TECH_DOCS = technical/index-format +TECH_DOCS += technical/http-protocol +TECH_DOCS += technical/index-format TECH_DOCS += technical/pack-format TECH_DOCS += technical/pack-heuristics TECH_DOCS += technical/pack-protocol @@ -324,7 +328,7 @@ manpage-base-url.xsl: manpage-base-url.xsl.in user-manual.xml: user-manual.txt user-manual.conf $(QUIET_ASCIIDOC)$(RM) $@+ $@ && \ - $(ASCIIDOC) $(ASCIIDOC_EXTRA) -b docbook -d book -o $@+ $< && \ + $(ASCIIDOC) $(ASCIIDOC_EXTRA) -b docbook -d article -o $@+ $< && \ mv $@+ $@ technical/api-index.txt: technical/api-index-skel.txt \ diff --git a/Documentation/RelNotes/1.9.0.txt b/Documentation/RelNotes/1.9.0.txt new file mode 100644 index 000000000..752d79127 --- /dev/null +++ b/Documentation/RelNotes/1.9.0.txt @@ -0,0 +1,345 @@ +Git v1.9.0 Release Notes +======================== + +Backward compatibility notes +---------------------------- + +"git submodule foreach $cmd $args" used to treat "$cmd $args" the same +way "ssh" did, concatenating them into a single string and letting the +shell unquote. Careless users who forget to sufficiently quote $args +get their argument split at $IFS whitespaces by the shell, and got +unexpected results due to this. Starting from this release, the +command line is passed directly to the shell, if it has an argument. + +Read-only support for experimental loose-object format, in which users +could optionally choose to write their loose objects for a short +while between v1.4.3 and v1.5.3 era, has been dropped. + +The meanings of the "--tags" option to "git fetch" has changed; the +command fetches tags _in addition to_ what is fetched by the same +command line without the option. + +The way "git push $there $what" interprets the $what part given on the +command line, when it does not have a colon that explicitly tells us +what ref at the $there repository is to be updated, has been enhanced. + +A handful of ancient commands that have long been deprecated are +finally gone (repo-config, tar-tree, lost-found, and peek-remote). + + +Backward compatibility notes (for Git 2.0.0) +-------------------------------------------- + +When "git push [$there]" does not say what to push, we have used the +traditional "matching" semantics so far (all your branches were sent +to the remote as long as there already are branches of the same name +over there). In Git 2.0, the default will change to the "simple" +semantics, which pushes: + + - only the current branch to the branch with the same name, and only + when the current branch is set to integrate with that remote + branch, if you are pushing to the same remote as you fetch from; or + + - only the current branch to the branch with the same name, if you + are pushing to a remote that is not where you usually fetch from. + +Use the user preference configuration variable "push.default" to +change this. If you are an old-timer who is used to the "matching" +semantics, you can set the variable to "matching" to keep the +traditional behaviour. If you want to live in the future early, you +can set it to "simple" today without waiting for Git 2.0. + +When "git add -u" (and "git add -A") is run inside a subdirectory and +does not specify which paths to add on the command line, it +will operate on the entire tree in Git 2.0 for consistency +with "git commit -a" and other commands. There will be no +mechanism to make plain "git add -u" behave like "git add -u .". +Current users of "git add -u" (without a pathspec) should start +training their fingers to explicitly say "git add -u ." +before Git 2.0 comes. A warning is issued when these commands are +run without a pathspec and when you have local changes outside the +current directory, because the behaviour in Git 2.0 will be different +from today's version in such a situation. + +In Git 2.0, "git add <path>" will behave as "git add -A <path>", so +that "git add dir/" will notice paths you removed from the directory +and record the removal. Versions before Git 2.0, including this +release, will keep ignoring removals, but the users who rely on this +behaviour are encouraged to start using "git add --ignore-removal <path>" +now before 2.0 is released. + +The default prefix for "git svn" will change in Git 2.0. For a long +time, "git svn" created its remote-tracking branches directly under +refs/remotes, but it will place them under refs/remotes/origin/ unless +it is told otherwise with its --prefix option. + + +Updates since v1.8.5 +-------------------- + +Foreign interfaces, subsystems and ports. + + * The HTTP transport, when talking GSS-Negotiate, uses "100 + Continue" response to avoid having to rewind and resend a large + payload, which may not be always doable. + + * Various bugfixes to remote-bzr and remote-hg (in contrib/). + + * The build procedure is aware of MirBSD now. + + * Various "git p4", "git svn" and "gitk" updates. + + +UI, Workflows & Features + + * Fetching from a shallowly-cloned repository used to be forbidden, + primarily because the codepaths involved were not carefully vetted + and we did not bother supporting such usage. This release attempts + to allow object transfer out of a shallowly-cloned repository in a + more controlled way (i.e. the receiver becomes a shallow repository + with a truncated history). + + * Just like we give a reasonable default for "less" via the LESS + environment variable, we now specify a reasonable default for "lv" + via the "LV" environment variable when spawning the pager. + + * Two-level configuration variable names in "branch.*" and "remote.*" + hierarchies, whose variables are predominantly three-level, were + not completed by hitting a <TAB> in bash and zsh completions. + + * Fetching a 'frotz' branch with "git fetch", while a 'frotz/nitfol' + remote-tracking branch from an earlier fetch was still there, would + error out, primarily because the command was not told that it is + allowed to lose any information on our side. "git fetch --prune" + now can be used to remove 'frotz/nitfol' to make room for fetching and + storing the 'frotz' remote-tracking branch. + + * "diff.orderfile=<file>" configuration variable can be used to + pretend as if the "-O<file>" option were given from the command + line of "git diff", etc. + + * The negative pathspec syntax allows "git log -- . ':!dir'" to tell + us "I am interested in everything but 'dir' directory". + + * "git difftool" shows how many different paths there are in total, + and how many of them have been shown so far, to indicate progress. + + * "git push origin master" used to push our 'master' branch to update + the 'master' branch at the 'origin' repository. This has been + enhanced to use the same ref mapping "git push origin" would use to + determine what ref at the 'origin' to be updated with our 'master'. + For example, with this configuration + + [remote "origin"] + push = refs/heads/*:refs/review/* + + that would cause "git push origin" to push out our local branches + to corresponding refs under refs/review/ hierarchy at 'origin', + "git push origin master" would update 'refs/review/master' over + there. Alternatively, if push.default is set to 'upstream' and our + 'master' is set to integrate with 'topic' from the 'origin' branch, + running "git push origin" while on our 'master' would update their + 'topic' branch, and running "git push origin master" while on any + of our branches does the same. + + * "gitweb" learned to treat ref hierarchies other than refs/heads as + if they are additional branch namespaces (e.g. refs/changes/ in + Gerrit). + + * "git for-each-ref --format=..." learned a few formatting directives; + e.g. "%(color:red)%(HEAD)%(color:reset) %(refname:short) %(subject)". + + * The command string given to "git submodule foreach" is passed + directly to the shell, without being eval'ed. This is a backward + incompatible change that may break existing users. + + * "git log" and friends learned the "--exclude=<glob>" option, to + allow people to say "list history of all branches except those that + match this pattern" with "git log --exclude='*/*' --branches". + + * "git rev-parse --parseopt" learned a new "--stuck-long" option to + help scripts parse options with an optional parameter. + + * The "--tags" option to "git fetch" no longer tells the command to + fetch _only_ the tags. It instead fetches tags _in addition to_ + what are fetched by the same command line without the option. + + +Performance, Internal Implementation, etc. + + * When parsing a 40-hex string into the object name, the string is + checked to see if it can be interpreted as a ref so that a warning + can be given for ambiguity. The code kicked in even when the + core.warnambiguousrefs is set to false to squelch this warning, in + which case the cycles spent to look at the ref namespace were an + expensive no-op, as the result was discarded without being used. + + * The naming convention of the packfiles has been updated; it used to + be based on the enumeration of names of the objects that are + contained in the pack, but now it also depends on how the packed + result is represented---packing the same set of objects using + different settings (or delta order) would produce a pack with + different name. + + * "git diff --no-index" mode used to unnecessarily attempt to read + the index when there is one. + + * The deprecated parse-options macro OPT_BOOLEAN has been removed; + use OPT_BOOL or OPT_COUNTUP in new code. + + * A few duplicate implementations of prefix/suffix string comparison + functions have been unified to starts_with() and ends_with(). + + * The new PERLLIB_EXTRA makefile variable can be used to specify + additional directories Perl modules (e.g. the ones necessary to run + git-svn) are installed on the platform when building. + + * "git merge-base" learned the "--fork-point" mode, that implements + the same logic used in "git pull --rebase" to find a suitable fork + point out of the reflog entries for the remote-tracking branch the + work has been based on. "git rebase" has the same logic that can be + triggered with the "--fork-point" option. + + * A third-party "receive-pack" (the responder to "git push") can + advertise the "no-thin" capability to tell "git push" not to use + the thin-pack optimization. Our receive-pack has always been + capable of accepting and fattening a thin-pack, and will continue + not to ask "git push" to use a non-thin pack. + + +Also contains various documentation updates and code clean-ups. + + +Fixes since v1.8.5 +------------------ + +Unless otherwise noted, all the fixes since v1.8.5 in the maintenance +track are contained in this release (see the maintenance releases' notes +for details). + + * The pathspec matching code, while comparing two trees (e.g. "git + diff A B -- path1 path2") was too aggressive and failed to match + some paths when multiple pathspecs were involved. + + * "git repack --max-pack-size=8g" stopped being parsed correctly when + the command was reimplemented in C. + + * An earlier update in v1.8.4.x to "git rev-list --objects" with + negative ref had a performance regression. + (merge 200abe7 jk/mark-edges-uninteresting later to maint). + + * A recent update to "git send-email" broke platforms where + /etc/ssl/certs/ directory exists but cannot be used as SSL_ca_path + (e.g. Fedora rawhide). + + * A handful of bugs around interpreting $branch@{upstream} notation + and its lookalike, when $branch part has interesting characters, + e.g. "@", and ":", have been fixed. + + * "git clone" would fail to clone from a repository that has a ref + directly under "refs/", e.g. "refs/stash", because different + validation paths do different things on such a refname. Loosen the + client side's validation to allow such a ref. + + * "git log --left-right A...B" lost the "leftness" of commits + reachable from A when A is a tag as a side effect of a recent + bugfix. This is a regression in 1.8.4.x series. + + * documentations to "git pull" hinted there is an "-m" option because + it incorrectly shared the documentation with "git merge". + + * "git diff A B submod" and "git diff A B submod/" ought to have done + the same for a submodule "submod", but didn't. + + * "git clone $origin foo\bar\baz" on Windows failed to create the + leading directories (i.e. a moral-equivalent of "mkdir -p"). + + * "submodule.*.update=checkout", when propagated from .gitmodules to + .git/config, turned into a "submodule.*.update=none", which did not + make much sense. + (merge efa8fd7 fp/submodule-checkout-mode later to maint). + + * The implementation of 'git stash $cmd "stash@{...}"' did not quote + the stash argument properly and left it split at IFS whitespace. + + * The "--[no-]informative-errors" options to "git daemon" were parsed + a bit too loosely, allowing any other string after these option + names. + + * There is no reason to have a hardcoded upper limit for the number of + parents of an octopus merge, created via the graft mechanism, but + there was. + + * The basic test used to leave unnecessary trash directories in the + t/ directory. + (merge 738a8be jk/test-framework-updates later to maint). + + * "git merge-base --octopus" used to leave cleaning up suboptimal + result to the caller, but now it does the clean-up itself. + + * A "gc" process running as a different user should be able to stop a + new "gc" process from starting, but it didn't. + + * An earlier "clean-up" introduced an unnecessary memory leak. + + * "git add -A" (no other arguments) in a totally empty working tree + used to emit an error. + + * "git log --decorate" did not handle a tag pointed by another tag + nicely. + + * When we figure out how many file descriptors to allocate for + keeping packfiles open, a system with non-working getrlimit() could + cause us to die(), but because we make this call only to get a + rough estimate of how many are available and we do not even attempt + to use up all available file descriptors ourselves, it is nicer to + fall back to a reasonable low value rather than dying. + + * read_sha1_file(), that is the workhorse to read the contents given + an object name, honoured object replacements, but there was no + corresponding mechanism to sha1_object_info() that was used to + obtain the metainfo (e.g. type & size) about the object. This led + callers to weird inconsistencies. + (merge 663a856 cc/replace-object-info later to maint). + + * "git cat-file --batch=", an admittedly useless command, did not + behave very well. + + * "git rev-parse <revs> -- <paths>" did not implement the usual + disambiguation rules the commands in the "git log" family used in + the same way. + + * "git mv A B/", when B does not exist as a directory, should error + out, but it didn't. + + * A workaround to an old bug in glibc prior to glibc 2.17 has been + retired; this would remove a side effect of the workaround that + corrupts system error messages in non-C locales. + + * SSL-related options were not passed correctly to underlying socket + layer in "git send-email". + + * "git commit -v" appends the patch to the log message before + editing, and then removes the patch when the editor returned + control. However, the patch was not stripped correctly when the + first modified path was a submodule. + + * "git fetch --depth=0" was a no-op, and was silently ignored. + Diagnose it as an error. + + * Remote repository URLs expressed in scp-style host:path notation are + parsed more carefully (e.g. "foo/bar:baz" is local, "[::1]:/~user" asks + to connect to user's home directory on host at address ::1. + + * "git diff -- ':(icase)makefile'" was unnecessarily rejected at the + command line parser. + + * "git cat-file --batch-check=ok" did not check the existence of + the named object. + + * "git am --abort" sometimes complained about not being able to write + a tree with an 0{40} object in it. + + * Two processes creating loose objects at the same time could have + failed unnecessarily when the name of their new objects started + with the same byte value, due to a race condition. diff --git a/Documentation/RelNotes/1.9.1.txt b/Documentation/RelNotes/1.9.1.txt new file mode 100644 index 000000000..5b0602053 --- /dev/null +++ b/Documentation/RelNotes/1.9.1.txt @@ -0,0 +1,59 @@ +Git v1.9.1 Release Notes +======================== + +Fixes since v1.9.0 +------------------ + + * "git clean -d pathspec" did not use the given pathspec correctly + and ended up cleaning too much. + + * "git difftool" misbehaved when the repository is bound to the + working tree with the ".git file" mechanism, where a textual file + ".git" tells us where it is. + + * "git push" did not pay attention to branch.*.pushremote if it is + defined earlier than remote.pushdefault; the order of these two + variables in the configuration file should not matter, but it did + by mistake. + + * Codepaths that parse timestamps in commit objects have been + tightened. + + * "git diff --external-diff" incorrectly fed the submodule directory + in the working tree to the external diff driver when it knew it is + the same as one of the versions being compared. + + * "git reset" needs to refresh the index when working in a working + tree (it can also be used to match the index to the HEAD in an + otherwise bare repository), but it failed to set up the working + tree properly, causing GIT_WORK_TREE to be ignored. + + * "git check-attr" when working on a repository with a working tree + did not work well when the working tree was specified via the + --work-tree (and obviously with --git-dir) option. + + * "merge-recursive" was broken in 1.7.7 era and stopped working in + an empty (temporary) working tree, when there are renames + involved. This has been corrected. + + * "git rev-parse" was loose in rejecting command line arguments + that do not make sense, e.g. "--default" without the required + value for that option. + + * include.path variable (or any variable that expects a path that + can use ~username expansion) in the configuration file is not a + boolean, but the code failed to check it. + + * "git diff --quiet -- pathspec1 pathspec2" sometimes did not return + correct status value. + + * Attempting to deepen a shallow repository by fetching over smart + HTTP transport failed in the protocol exchange, when no-done + extension was used. The fetching side waited for the list of + shallow boundary commits after the sending end stopped talking to + it. + + * Allow "git cmd path/", when the 'path' is where a submodule is + bound to the top-level working tree, to match 'path', despite the + extra and unnecessary trailing slash (such a slash is often + given by command line completion). diff --git a/Documentation/RelNotes/1.9.2.txt b/Documentation/RelNotes/1.9.2.txt new file mode 100644 index 000000000..47a34ca96 --- /dev/null +++ b/Documentation/RelNotes/1.9.2.txt @@ -0,0 +1,67 @@ +Git v1.9.2 Release Notes +======================== + +Fixes since v1.9.1 +------------------ + + * Documentation and in-code comments had many instances of mistaken + use of "nor", which have been corrected. + + * "git fetch --prune", when the right-hand-side of multiple fetch + refspecs overlap (e.g. storing "refs/heads/*" to + "refs/remotes/origin/*", while storing "refs/frotz/*" to + "refs/remotes/origin/fr/*"), aggressively thought that lack of + "refs/heads/fr/otz" on the origin site meant we should remove + "refs/remotes/origin/fr/otz" from us, without checking their + "refs/frotz/otz" first. + + Note that such a configuration is inherently unsafe (think what + should happen when "refs/heads/fr/otz" does appear on the origin + site), but that is not a reason not to be extra careful. + + * "git update-ref --stdin" did not fail a request to create a ref + when the ref already existed. + + * "git diff --no-index -Mq a b" fell into an infinite loop. + + * When it is not necessary to edit a commit log message (e.g. "git + commit -m" is given a message without specifying "-e"), we used to + disable the spawning of the editor by overriding GIT_EDITOR, but + this means all the uses of the editor, other than to edit the + commit log message, are also affected. + + * "git status --porcelain --branch" showed its output with labels + "ahead/behind/gone" translated to the user's locale. + + * "git mv" that moves a submodule forgot to adjust the array that + uses to keep track of which submodules were to be moved to update + its configuration. + + * Length limit for the pathname used when removing a path in a deep + subdirectory has been removed to avoid buffer overflows. + + * The test helper lib-terminal always run an actual test_expect_* + when included, which screwed up with the use of skil-all that may + have to be done later. + + * "git index-pack" used a wrong variable to name the keep-file in an + error message when the file cannot be written or closed. + + * "rebase -i" produced a broken insn sheet when the title of a commit + happened to contain '\n' (or ended with '\c') due to a careless use + of 'echo'. + + * There were a few instances of 'git-foo' remaining in the + documentation that should have been spelled 'git foo'. + + * Serving objects from a shallow repository needs to write a + new file to hold the temporary shallow boundaries but it was not + cleaned when we exit due to die() or a signal. + + * When "git stash pop" stops after failing to apply the stash + (e.g. due to conflicting changes), the stash is not dropped. State + that explicitly in the output to let the users know. + + * The labels in "git status" output that describe the nature of + conflicts (e.g. "both deleted") were limited to 20 bytes, which was + too short for some l10n (e.g. fr). diff --git a/Documentation/RelNotes/1.9.3.txt b/Documentation/RelNotes/1.9.3.txt new file mode 100644 index 000000000..17b05ca7b --- /dev/null +++ b/Documentation/RelNotes/1.9.3.txt @@ -0,0 +1,21 @@ +Git v1.9.3 Release Notes +======================== + +Fixes since v1.9.2 +------------------ + + * "git p4" dealing with changes in binary files were broken by a + change in 1.9 release. + + * The shell prompt script (in contrib/), when using the PROMPT_COMMAND + interface, used an unsafe construct when showing the branch name in + $PS1. + + * "git rebase" used a POSIX shell construct FreeBSD /bin/sh does not + work well with. + + * Some more Unicode codepoints defined in Unicode 6.3 as having + zero width have been taught to our display column counting logic. + + * Some tests used shell constructs that did not work well on + FreeBSD. diff --git a/Documentation/RelNotes/1.9.4.txt b/Documentation/RelNotes/1.9.4.txt new file mode 100644 index 000000000..e1d183543 --- /dev/null +++ b/Documentation/RelNotes/1.9.4.txt @@ -0,0 +1,16 @@ +Git v1.9.4 Release Notes +======================== + +Fixes since v1.9.3 +------------------ + + * Commands that take pathspecs on the command line misbehaved when + the pathspec is given as an absolute pathname (which is a + practice not particularly encouraged) that points at a symbolic + link in the working tree. + + * An earlier fix to the shell prompt script (in contrib/) for using + the PROMPT_COMMAND interface did not correctly check if the extra + code path needs to trigger, causing the branch name not to appear + when 'promptvars' option is disabled in bash or PROMPT_SUBST is + unset in zsh. diff --git a/Documentation/config.txt b/Documentation/config.txt index ab26963d6..c26a7c846 100644 --- a/Documentation/config.txt +++ b/Documentation/config.txt @@ -78,8 +78,8 @@ be escaped: use `\"` for `"` and `\\` for `\`. The following escape sequences (beside `\"` and `\\`) are recognized: `\n` for newline character (NL), `\t` for horizontal tabulation (HT, TAB) -and `\b` for backspace (BS). No other char escape sequence, nor octal -char sequences are valid. +and `\b` for backspace (BS). Other char escape sequences (including octal +escape sequences) are invalid. Variable values ending in a `\` are continued on the next line in the customary UNIX fashion. @@ -567,6 +567,10 @@ be passed to the shell by Git, which will translate the final command to `LESS=FRSX less -+S`. The environment tells the command to set the `S` option to chop long lines but the command line resets it to the default to fold long lines. ++ +Likewise, when the `LV` environment variable is unset, Git sets it +to `-c`. You can override this setting by exporting `LV` with +another value or setting `core.pager` to `lv +c`. core.whitespace:: A comma separated list of common whitespace problems to @@ -823,7 +827,7 @@ color.diff:: commands will only use color when output is to the terminal. Defaults to false. + -This does not affect linkgit:git-format-patch[1] nor the +This does not affect linkgit:git-format-patch[1] or the 'git-diff-{asterisk}' plumbing commands. Can be overridden on the command line with the `--color[=<when>]` option. @@ -2026,6 +2030,10 @@ receive.updateserverinfo:: If set to true, git-receive-pack will run git-update-server-info after receiving data from git-push and updating refs. +receive.shallowupdate:: + If set to true, .git/shallow can be updated when new refs + require new shallow roots. Otherwise those refs are rejected. + remote.pushdefault:: The remote to push to by default. Overrides `branch.<name>.remote` for all branches, and is overridden by @@ -2087,8 +2095,8 @@ remote.<name>.vcs:: remote.<name>.prune:: When set to true, fetching from this remote by default will also - remove any remote-tracking branches which no longer exist on the - remote (as if the `--prune` option was give on the command line). + remove any remote-tracking references that no longer exist on the + remote (as if the `--prune` option was given on the command line). Overrides `fetch.prune` settings, if any. remotes.<group>:: diff --git a/Documentation/diff-config.txt b/Documentation/diff-config.txt index 223b9310d..f07b4513e 100644 --- a/Documentation/diff-config.txt +++ b/Documentation/diff-config.txt @@ -98,6 +98,11 @@ diff.mnemonicprefix:: diff.noprefix:: If set, 'git diff' does not show any source or destination prefix. +diff.orderfile:: + File indicating how to order files within a diff, using + one shell glob pattern per line. + Can be overridden by the '-O' option to linkgit:git-diff[1]. + diff.renameLimit:: The number of files to consider when performing the copy/rename detection; equivalent to the 'git diff' option '-l'. diff --git a/Documentation/diff-generate-patch.txt b/Documentation/diff-generate-patch.txt index 55f499a16..843a20bac 100644 --- a/Documentation/diff-generate-patch.txt +++ b/Documentation/diff-generate-patch.txt @@ -174,7 +174,7 @@ added, from the point of view of that parent). In the above example output, the function signature was changed from both files (hence two `-` removals from both file1 and file2, plus `++` to mean one line that was added does not appear -in either file1 nor file2). Also eight other lines are the same +in either file1 or file2). Also eight other lines are the same from file1 but do not appear in file2 (hence prefixed with `+`). When shown by `git diff-tree -c`, it compares the parents of a diff --git a/Documentation/diff-options.txt b/Documentation/diff-options.txt index bbed2cd79..6cb083aae 100644 --- a/Documentation/diff-options.txt +++ b/Documentation/diff-options.txt @@ -358,7 +358,7 @@ endif::git-log[] --irreversible-delete:: Omit the preimage for deletes, i.e. print only the header but not the diff between the preimage and `/dev/null`. The resulting patch - is not meant to be applied with `patch` nor `git apply`; this is + is not meant to be applied with `patch` or `git apply`; this is solely for people who want to just concentrate on reviewing the text after the change. In addition, the output obviously lack enough information to apply such a patch in reverse, even manually, @@ -432,6 +432,9 @@ endif::git-format-patch[] -O<orderfile>:: Output the patch in the order specified in the <orderfile>, which has one shell glob pattern per line. + This overrides the `diff.orderfile` configuration variable + (see linkgit:git-config[1]). To cancel `diff.orderfile`, + use `-O/dev/null`. ifndef::git-format-patch[] -R:: diff --git a/Documentation/everyday.txt b/Documentation/everyday.txt index 2a18c1f6f..b2548ef4e 100644 --- a/Documentation/everyday.txt +++ b/Documentation/everyday.txt @@ -263,7 +263,7 @@ that are not quite ready. <5> create topic branch as needed and apply, again with my sign-offs. <6> rebase internal topic branch that has not been merged to the -master, nor exposed as a part of a stable branch. +master or exposed as a part of a stable branch. <7> restart `pu` every time from the next. <8> and bundle topic branches still cooking. <9> backport a critical fix. diff --git a/Documentation/fetch-options.txt b/Documentation/fetch-options.txt index ba1fe4958..92c68c3fd 100644 --- a/Documentation/fetch-options.txt +++ b/Documentation/fetch-options.txt @@ -14,8 +14,18 @@ branch history. Tags for the deepened commits are not fetched. --unshallow:: - Convert a shallow repository to a complete one, removing all - the limitations imposed by shallow repositories. + If the source repository is complete, convert a shallow + repository to a complete one, removing all the limitations + imposed by shallow repositories. ++ +If the source repository is shallow, fetch as much as possible so that +the current repository has the same history as the source repository. + +--update-shallow:: + By default when fetching from a shallow repository, + `git fetch` refuses refs that require updating + .git/shallow. This option updates .git/shallow and accept such + refs. ifndef::git-pull[] --dry-run:: @@ -41,17 +51,20 @@ ifndef::git-pull[] -p:: --prune:: - After fetching, remove any remote-tracking branches which - no longer exist on the remote. + After fetching, remove any remote-tracking references that no + longer exist on the remote. Tags are not subject to pruning + if they are fetched only because of the default tag + auto-following or due to a --tags option. However, if tags + are fetched due to an explicit refspec (either on the command + line or in the remote configuration, for example if the remote + was cloned with the --mirror option), then they are also + subject to pruning. endif::git-pull[] -ifdef::git-pull[] ---no-tags:: -endif::git-pull[] ifndef::git-pull[] -n:: ---no-tags:: endif::git-pull[] +--no-tags:: By default, tags that point at objects that are downloaded from the remote repository are fetched and stored locally. This option disables this automatic tag following. The default @@ -61,11 +74,12 @@ endif::git-pull[] ifndef::git-pull[] -t:: --tags:: - This is a short-hand for giving `refs/tags/*:refs/tags/*` - refspec from the command line, to ask all tags to be fetched - and stored locally. Because this acts as an explicit - refspec, the default refspecs (configured with the - remote.$name.fetch variable) are overridden and not used. + Fetch all tags from the remote (i.e., fetch remote tags + `refs/tags/*` into local tags with the same name), in addition + to whatever else would otherwise be fetched. Using this + option alone does not subject tags to pruning, even if --prune + is used (though tags may be pruned anyway if they are also the + destination of an explicit refspec; see '--prune'). --recurse-submodules[=yes|on-demand|no]:: This option controls if and under what conditions new commits of diff --git a/Documentation/git-add.txt b/Documentation/git-add.txt index 48754cbc6..f3ab3748b 100644 --- a/Documentation/git-add.txt +++ b/Documentation/git-add.txt @@ -296,9 +296,9 @@ patch:: y - stage this hunk n - do not stage this hunk - q - quit; do not stage this hunk nor any of the remaining ones + q - quit; do not stage this hunk or any of the remaining ones a - stage this hunk and all later hunks in the file - d - do not stage this hunk nor any of the later hunks in the file + d - do not stage this hunk or any of the later hunks in the file g - select a hunk to go to / - search for a hunk matching the given regex j - leave this hunk undecided, see next undecided hunk diff --git a/Documentation/git-cat-file.txt b/Documentation/git-cat-file.txt index 322f5ed31..f6a16f430 100644 --- a/Documentation/git-cat-file.txt +++ b/Documentation/git-cat-file.txt @@ -109,6 +109,11 @@ newline. The available atoms are: The size, in bytes, that the object takes up on disk. See the note about on-disk sizes in the `CAVEATS` section below. +`deltabase`:: + If the object is stored as a delta on-disk, this expands to the + 40-hex sha1 of the delta base object. Otherwise, expands to the + null sha1 (40 zeroes). See `CAVEATS` below. + `rest`:: If this atom is used in the output string, input lines are split at the first whitespace boundary. All characters before that @@ -152,10 +157,11 @@ should be taken in drawing conclusions about which refs or objects are responsible for disk usage. The size of a packed non-delta object may be much larger than the size of objects which delta against it, but the choice of which object is the base and which is the delta is arbitrary -and is subject to change during a repack. Note also that multiple copies -of an object may be present in the object database; in this case, it is -undefined which copy's size will be reported. +and is subject to change during a repack. +Note also that multiple copies of an object may be present in the object +database; in this case, it is undefined which copy's size or delta base +will be reported. GIT --- diff --git a/Documentation/git-checkout.txt b/Documentation/git-checkout.txt index 91294f89c..33ad2adf5 100644 --- a/Documentation/git-checkout.txt +++ b/Documentation/git-checkout.txt @@ -232,8 +232,8 @@ section of linkgit:git-add[1] to learn how to operate the `--patch` mode. commit, your HEAD becomes "detached" and you are no longer on any branch (see below for details). + -As a special case, the `"@{-N}"` syntax for the N-th last branch -checks out the branch (instead of detaching). You may also specify +As a special case, the `"@{-N}"` syntax for the N-th last branch/commit +checks out branches (instead of detaching). You may also specify `-` which is synonymous with `"@{-1}"`. + As a further special case, you may use `"A...B"` as a shortcut for the diff --git a/Documentation/git-clone.txt b/Documentation/git-clone.txt index 450f15877..bf3dac0ce 100644 --- a/Documentation/git-clone.txt +++ b/Documentation/git-clone.txt @@ -181,12 +181,7 @@ objects from the source repository into a pack in the cloned repository. --depth <depth>:: Create a 'shallow' clone with a history truncated to the - specified number of revisions. A shallow repository has a - number of limitations (you cannot clone or fetch from - it, nor push from nor into it), but is adequate if you - are only interested in the recent history of a large project - with a long history, and would want to send in fixes - as patches. + specified number of revisions. --[no-]single-branch:: Clone only the history leading to the tip of a single branch, @@ -213,7 +208,7 @@ objects from the source repository into a pack in the cloned repository. --separate-git-dir=<git dir>:: Instead of placing the cloned repository where it is supposed to be, place the cloned repository at the specified directory, - then make a filesytem-agnostic Git symbolic link to there. + then make a filesystem-agnostic Git symbolic link to there. The result is Git repository can be separated from working tree. diff --git a/Documentation/git-column.txt b/Documentation/git-column.txt index 5d6f1cc46..03d18465d 100644 --- a/Documentation/git-column.txt +++ b/Documentation/git-column.txt @@ -43,11 +43,6 @@ OPTIONS --padding=<N>:: The number of spaces between columns. One space by default. - -Author ------- -Written by Nguyen Thai Ngoc Duy <pclouds@gmail.com> - GIT --- Part of the linkgit:git[1] suite diff --git a/Documentation/git-count-objects.txt b/Documentation/git-count-objects.txt index b300e846f..2ff35683e 100644 --- a/Documentation/git-count-objects.txt +++ b/Documentation/git-count-objects.txt @@ -33,8 +33,8 @@ size-pack: disk space consumed by the packs, in KiB (unless -H is specified) prune-packable: the number of loose objects that are also present in the packs. These objects could be pruned using `git prune-packed`. + -garbage: the number of files in object database that are not valid -loose objects nor valid packs +garbage: the number of files in object database that are neither valid loose +objects nor valid packs + size-garbage: disk space consumed by garbage files, in KiB (unless -H is specified) diff --git a/Documentation/git-diff.txt b/Documentation/git-diff.txt index 33fbd8c56..bbab35fca 100644 --- a/Documentation/git-diff.txt +++ b/Documentation/git-diff.txt @@ -44,7 +44,7 @@ two blob objects, or changes between two files on disk. commit relative to the named <commit>. Typically you would want comparison with the latest commit, so if you do not give <commit>, it defaults to HEAD. - If HEAD does not exist (e.g. unborned branches) and + If HEAD does not exist (e.g. unborn branches) and <commit> is not given, it shows all staged changes. --staged is a synonym of --cached. @@ -158,8 +158,8 @@ $ git diff --name-status <2> $ git diff arch/i386 include/asm-i386 <3> ------------ + -<1> Show only modification, rename and copy, but not addition -nor deletion. +<1> Show only modification, rename, and copy, but not addition +or deletion. <2> Show only names and the nature of change, but not actual diff output. <3> Limit diff output to named subtrees. diff --git a/Documentation/git-fetch.txt b/Documentation/git-fetch.txt index e08a02894..5809aa4eb 100644 --- a/Documentation/git-fetch.txt +++ b/Documentation/git-fetch.txt @@ -24,19 +24,22 @@ The ref names and their object names of fetched refs are stored in `.git/FETCH_HEAD`. This information is left for a later merge operation done by 'git merge'. -When <refspec> stores the fetched result in remote-tracking branches, -the tags that point at these branches are automatically -followed. This is done by first fetching from the remote using -the given <refspec>s, and if the repository has objects that are -pointed by remote tags that it does not yet have, then fetch -those missing tags. If the other end has tags that point at -branches you are not interested in, you will not get them. +By default, tags are auto-followed. This means that when fetching +from a remote, any tags on the remote that point to objects that exist +in the local repository are fetched. The effect is to fetch tags that +point at branches that you are interested in. This default behavior +can be changed by using the --tags or --no-tags options, by +configuring remote.<name>.tagopt, or by using a refspec that fetches +tags explicitly. 'git fetch' can fetch from either a single named repository, or from several repositories at once if <group> is given and there is a remotes.<group> entry in the configuration file. (See linkgit:git-config[1]). +When no remote is specified, by default the `origin` remote will be used, +unless there's an upstream branch configured for the current branch. + OPTIONS ------- include::fetch-options.txt[] diff --git a/Documentation/git-filter-branch.txt b/Documentation/git-filter-branch.txt index e4c8e8266..2eba62717 100644 --- a/Documentation/git-filter-branch.txt +++ b/Documentation/git-filter-branch.txt @@ -393,7 +393,7 @@ git filter-branch --index-filter \ Checklist for Shrinking a Repository ------------------------------------ -git-filter-branch is often used to get rid of a subset of files, +git-filter-branch can be used to get rid of a subset of files, usually with some combination of `--index-filter` and `--subdirectory-filter`. People expect the resulting repository to be smaller than the original, but you need a few more steps to @@ -429,6 +429,37 @@ warned. (or if your git-gc is not new enough to support arguments to `--prune`, use `git repack -ad; git prune` instead). +Notes +----- + +git-filter-branch allows you to make complex shell-scripted rewrites +of your Git history, but you probably don't need this flexibility if +you're simply _removing unwanted data_ like large files or passwords. +For those operations you may want to consider +link:http://rtyley.github.io/bfg-repo-cleaner/[The BFG Repo-Cleaner], +a JVM-based alternative to git-filter-branch, typically at least +10-50x faster for those use-cases, and with quite different +characteristics: + +* Any particular version of a file is cleaned exactly _once_. The BFG, + unlike git-filter-branch, does not give you the opportunity to + handle a file differently based on where or when it was committed + within your history. This constraint gives the core performance + benefit of The BFG, and is well-suited to the task of cleansing bad + data - you don't care _where_ the bad data is, you just want it + _gone_. + +* By default The BFG takes full advantage of multi-core machines, + cleansing commit file-trees in parallel. git-filter-branch cleans + commits sequentially (ie in a single-threaded manner), though it + _is_ possible to write filters that include their own parallellism, + in the scripts executed against each commit. + +* The link:http://rtyley.github.io/bfg-repo-cleaner/#examples[command options] + are much more restrictive than git-filter branch, and dedicated just + to the tasks of removing unwanted data- e.g: + `--strip-blobs-bigger-than 1M`. + GIT --- Part of the linkgit:git[1] suite diff --git a/Documentation/git-for-each-ref.txt b/Documentation/git-for-each-ref.txt index f2e08d11c..42408752d 100644 --- a/Documentation/git-for-each-ref.txt +++ b/Documentation/git-for-each-ref.txt @@ -91,7 +91,19 @@ objectname:: upstream:: The name of a local ref which can be considered ``upstream'' from the displayed ref. Respects `:short` in the same way as - `refname` above. + `refname` above. Additionally respects `:track` to show + "[ahead N, behind M]" and `:trackshort` to show the terse + version: ">" (ahead), "<" (behind), "<>" (ahead and behind), + or "=" (in sync). Has no effect if the ref does not have + tracking information associated with it. + +HEAD:: + '*' if HEAD matches current ref (the checked out branch), ' ' + otherwise. + +color:: + Change output color. Followed by `:<colorname>`, where names + are described in `color.branch.*`. In addition to the above, for commit and tag objects, the header field names (`tree`, `parent`, `object`, `type`, and `tag`) can @@ -207,13 +219,9 @@ eval=`git for-each-ref --shell --format="$fmt" \ eval "$eval" ------------ -Author ------- -Written by Junio C Hamano <gitster@pobox.com>. - -Documentation -------------- -Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>. +SEE ALSO +-------- +linkgit:git-show-ref[1] GIT --- diff --git a/Documentation/git-http-backend.txt b/Documentation/git-http-backend.txt index e3bcdb50e..d422ba4b5 100644 --- a/Documentation/git-http-backend.txt +++ b/Documentation/git-http-backend.txt @@ -191,7 +191,7 @@ ScriptAlias /git/ /var/www/cgi-bin/gitweb.cgi/ ---------------------------------------------------------------- Lighttpd:: - Ensure that `mod_cgi`, `mod_alias, `mod_auth`, `mod_setenv` are + Ensure that `mod_cgi`, `mod_alias`, `mod_auth`, `mod_setenv` are loaded, then set `GIT_PROJECT_ROOT` appropriately and redirect all requests to the CGI: + @@ -263,14 +263,6 @@ identifying information of the remote user who performed the push. All CGI environment variables are available to each of the hooks invoked by the 'git-receive-pack'. -Author ------- -Written by Shawn O. Pearce <spearce@spearce.org>. - -Documentation --------------- -Documentation by Shawn O. Pearce <spearce@spearce.org>. - GIT --- Part of the linkgit:git[1] suite diff --git a/Documentation/git-lost-found.txt b/Documentation/git-lost-found.txt deleted file mode 100644 index d54932889..000000000 --- a/Documentation/git-lost-found.txt +++ /dev/null @@ -1,74 +0,0 @@ -git-lost-found(1) -================= - -NAME ----- -git-lost-found - Recover lost refs that luckily have not yet been pruned - -SYNOPSIS --------- -[verse] -'git lost-found' - -DESCRIPTION ------------ - -*NOTE*: this command is deprecated. Use linkgit:git-fsck[1] with -the option '--lost-found' instead. - -Finds dangling commits and tags from the object database, and -creates refs to them in the .git/lost-found/ directory. Commits and -tags that dereference to commits are stored in .git/lost-found/commit, -and other objects are stored in .git/lost-found/other. - - -OUTPUT ------- -Prints to standard output the object names and one-line descriptions -of any commits or tags found. - -EXAMPLE -------- - -Suppose you run 'git tag -f' and mistype the tag to overwrite. -The ref to your tag is overwritten, but until you run 'git -prune', the tag itself is still there. - ------------- -$ git lost-found -[1ef2b196d909eed523d4f3c9bf54b78cdd6843c6] GIT 0.99.9c -... ------------- - -Also you can use gitk to browse how any tags found relate to each -other. - ------------- -$ gitk $(cd .git/lost-found/commit && echo ??*) ------------- - -After making sure you know which the object is the tag you are looking -for, you can reconnect it to your regular `refs` hierarchy by using -the `update-ref` command. - ------------- -$ git cat-file -t 1ef2b196 -tag -$ git cat-file tag 1ef2b196 -object fa41bbce8e38c67a218415de6cfa510c7e50032a -type commit -tag v0.99.9c -tagger Junio C Hamano <junkio@cox.net> 1131059594 -0800 - -GIT 0.99.9c - -This contains the following changes from the "master" branch, since -... -$ git update-ref refs/tags/not-lost-anymore 1ef2b196 -$ git rev-parse not-lost-anymore -1ef2b196d909eed523d4f3c9bf54b78cdd6843c6 ------------- - -GIT ---- -Part of the linkgit:git[1] suite diff --git a/Documentation/git-merge-base.txt b/Documentation/git-merge-base.txt index 87842e33f..808426faa 100644 --- a/Documentation/git-merge-base.txt +++ b/Documentation/git-merge-base.txt @@ -13,6 +13,7 @@ SYNOPSIS 'git merge-base' [-a|--all] --octopus <commit>... 'git merge-base' --is-ancestor <commit> <commit> 'git merge-base' --independent <commit>... +'git merge-base' --fork-point <ref> [<commit>] DESCRIPTION ----------- @@ -24,8 +25,8 @@ that does not have any better common ancestor is a 'best common ancestor', i.e. a 'merge base'. Note that there can be more than one merge base for a pair of commits. -OPERATION MODE --------------- +OPERATION MODES +--------------- As the most common special case, specifying only two commits on the command line means computing the merge base between the given two commits. @@ -56,6 +57,14 @@ from linkgit:git-show-branch[1] when used with the `--merge-base` option. and exit with status 0 if true, or with status 1 if not. Errors are signaled by a non-zero status that is not 1. +--fork-point:: + Find the point at which a branch (or any history that leads + to <commit>) forked from another branch (or any reference) + <ref>. This does not just look for the common ancestor of + the two commits, but also takes into account the reflog of + <ref> to see if the history leading to <commit> forked from + an earlier incarnation of the branch <ref> (see discussion + on this mode below). OPTIONS ------- @@ -137,6 +146,31 @@ In modern git, you can say this in a more direct way: instead. +Discussion on fork-point mode +----------------------------- + +After working on the `topic` branch created with `git checkout -b +topic origin/master`, the history of remote-tracking branch +`origin/master` may have been rewound and rebuilt, leading to a +history of this shape: + + o---B1 + / + ---o---o---B2--o---o---o---B (origin/master) + \ + B3 + \ + Derived (topic) + +where `origin/master` used to point at commits B3, B2, B1 and now it +points at B, and your `topic` branch was started on top of it back +when `origin/master` was at B3. This mode uses the reflog of +`origin/master` to find B3 as the fork point, so that the `topic` +can be rebased on top of the updated `origin/master` by: + + $ fork_point=$(git merge-base --fork-point origin/master topic) + $ git rebase --onto origin/master $fork_point topic + See also -------- diff --git a/Documentation/git-mv.txt b/Documentation/git-mv.txt index b1f79881e..e4531325c 100644 --- a/Documentation/git-mv.txt +++ b/Documentation/git-mv.txt @@ -52,6 +52,18 @@ core.worktree setting to make the submodule work in the new location. It also will attempt to update the submodule.<name>.path setting in the linkgit:gitmodules[5] file and stage that file (unless -n is used). +BUGS +---- +Each time a superproject update moves a populated submodule (e.g. when +switching between commits before and after the move) a stale submodule +checkout will remain in the old location and an empty directory will +appear in the new location. To populate the submodule again in the new +location the user will have to run "git submodule update" +afterwards. Removing the old directory is only safe when it uses a +gitfile, as otherwise the history of the submodule will be deleted +too. Both steps will be obsolete when recursive submodule update has +been implemented. + GIT --- Part of the linkgit:git[1] suite diff --git a/Documentation/git-notes.txt b/Documentation/git-notes.txt index 46ef0466b..84bb0fecb 100644 --- a/Documentation/git-notes.txt +++ b/Documentation/git-notes.txt @@ -375,16 +375,6 @@ does not match any refs is silently ignored. If not set in the environment, the list of notes to copy depends on the `notes.rewrite.<command>` and `notes.rewriteRef` settings. - -Author ------- -Written by Johannes Schindelin <johannes.schindelin@gmx.de> and -Johan Herland <johan@herland.net> - -Documentation -------------- -Documentation by Johannes Schindelin and Johan Herland - GIT --- Part of the linkgit:git[7] suite diff --git a/Documentation/git-p4.txt b/Documentation/git-p4.txt index 8cba16d67..6ab5f9497 100644 --- a/Documentation/git-p4.txt +++ b/Documentation/git-p4.txt @@ -168,7 +168,8 @@ All commands except clone accept these options. --git-dir <dir>:: Set the 'GIT_DIR' environment variable. See linkgit:git[1]. ---verbose, -v:: +-v:: +--verbose:: Provide more progress information. Sync options @@ -279,7 +280,8 @@ These options can be used to modify 'git p4 submit' behavior. Export tags from Git as p4 labels. Tags found in Git are applied to the perforce working directory. ---dry-run, -n:: +-n:: +--dry-run:: Show just what commits would be submitted to p4; do not change state in Git or p4. diff --git a/Documentation/git-pack-objects.txt b/Documentation/git-pack-objects.txt index d94edcd4b..cdab9ed50 100644 --- a/Documentation/git-pack-objects.txt +++ b/Documentation/git-pack-objects.txt @@ -51,8 +51,7 @@ base-name:: <base-name> to determine the name of the created file. When this option is used, the two files are written in <base-name>-<SHA-1>.{pack,idx} files. <SHA-1> is a hash - of the sorted object names to make the resulting filename - based on the pack content, and written to the standard + based on the pack content and is written to the standard output of the command. --stdout:: diff --git a/Documentation/git-peek-remote.txt b/Documentation/git-peek-remote.txt deleted file mode 100644 index 87ea3fb05..000000000 --- a/Documentation/git-peek-remote.txt +++ /dev/null @@ -1,43 +0,0 @@ -git-peek-remote(1) -================== - -NAME ----- -git-peek-remote - List the references in a remote repository - - -SYNOPSIS --------- -[verse] -'git peek-remote' [--upload-pack=<git-upload-pack>] [<host>:]<directory> - -DESCRIPTION ------------ -This command is deprecated; use 'git ls-remote' instead. - -OPTIONS -------- ---upload-pack=<git-upload-pack>:: - Use this to specify the path to 'git-upload-pack' on the - remote side, if it is not found on your $PATH. Some - installations of sshd ignores the user's environment - setup scripts for login shells (e.g. .bash_profile) and - your privately installed git may not be found on the system - default $PATH. Another workaround suggested is to set - up your $PATH in ".bashrc", but this flag is for people - who do not want to pay the overhead for non-interactive - shells, but prefer having a lean .bashrc file (they set most of - the things up in .bash_profile). - -<host>:: - A remote host that houses the repository. When this - part is specified, 'git-upload-pack' is invoked via - ssh. - -<directory>:: - The repository to sync from. - - -GIT ---- -Part of the linkgit:git[1] suite diff --git a/Documentation/git-prune.txt b/Documentation/git-prune.txt index bf824108c..7a493c80f 100644 --- a/Documentation/git-prune.txt +++ b/Documentation/git-prune.txt @@ -24,6 +24,8 @@ objects unreachable from any of these head objects from the object database. In addition, it prunes the unpacked objects that are also found in packs by running 'git prune-packed'. +It also removes entries from .git/shallow that are not reachable by +any ref. Note that unreachable, packed objects will remain. If this is not desired, see linkgit:git-repack[1]. @@ -54,7 +56,7 @@ OPTIONS EXAMPLE ------- -To prune objects not used by your repository nor another that +To prune objects not used by your repository or another that borrows from your repository via its `.git/objects/info/alternates`: diff --git a/Documentation/git-push.txt b/Documentation/git-push.txt index 9eec74091..d0b9e2f23 100644 --- a/Documentation/git-push.txt +++ b/Documentation/git-push.txt @@ -56,8 +56,13 @@ it can be any arbitrary "SHA-1 expression", such as `master~4` or + The <dst> tells which ref on the remote side is updated with this push. Arbitrary expressions cannot be used here, an actual ref must -be named. If `:`<dst> is omitted, the same ref as <src> will be -updated. +be named. +If `git push [<repository>]` without any `<refspec>` argument is set to +update some ref at the destination with `<src>` with +`remote.<repository>.push` configuration variable, `:<dst>` part can +be omitted---such a push will update a ref that `<src>` normally updates +without any `<refspec>` on the command line. Otherwise, missing +`:<dst>` means to update the same ref as the `<src>`. + The object referenced by <src> is used to update the <dst> reference on the remote side. By default this is only allowed if <dst> is not @@ -380,7 +385,7 @@ will now start building on top of B. The command by default does not allow an update that is not a fast-forward to prevent such loss of history. -If you do not want to lose your work (history from X to B) nor the work by +If you do not want to lose your work (history from X to B) or the work by the other person (history from X to A), you would need to first fetch the history from the repository, create a history that contains changes done by both parties, and push the result back. diff --git a/Documentation/git-read-tree.txt b/Documentation/git-read-tree.txt index c4bde6509..056c0dba8 100644 --- a/Documentation/git-read-tree.txt +++ b/Documentation/git-read-tree.txt @@ -57,7 +57,7 @@ OPTIONS -n:: --dry-run:: Check if the command would error out, without updating the index - nor the files in the working tree for real. + or the files in the working tree for real. -v:: Show the progress of checking files out. diff --git a/Documentation/git-rebase.txt b/Documentation/git-rebase.txt index 94e07fdab..2889be6bd 100644 --- a/Documentation/git-rebase.txt +++ b/Documentation/git-rebase.txt @@ -324,6 +324,16 @@ fresh commits so it can be remerged successfully without needing to "revert the reversion" (see the link:howto/revert-a-faulty-merge.html[revert-a-faulty-merge How-To] for details). +--fork-point:: +--no-fork-point:: + Use 'git merge-base --fork-point' to find a better common ancestor + between `upstream` and `branch` when calculating which commits have + have been introduced by `branch` (see linkgit:git-merge-base[1]). ++ +If no non-option arguments are given on the command line, then the default is +`--fork-point @{u}` otherwise the `upstream` argument is interpreted literally +unless the `--fork-point` option is specified. + --ignore-whitespace:: --whitespace=<option>:: These flag are passed to the 'git apply' program diff --git a/Documentation/git-remote-ext.txt b/Documentation/git-remote-ext.txt index 8cfc748ae..cd0bb77e4 100644 --- a/Documentation/git-remote-ext.txt +++ b/Documentation/git-remote-ext.txt @@ -116,11 +116,6 @@ begins with `ext::`. Examples: determined by the helper using environment variables (see above). -Documentation --------------- -Documentation by Ilari Liusvaara, Jonathan Nieder and the Git list -<git@vger.kernel.org> - GIT --- Part of the linkgit:git[1] suite diff --git a/Documentation/git-remote-fd.txt b/Documentation/git-remote-fd.txt index 933c2adaf..bcd37668e 100644 --- a/Documentation/git-remote-fd.txt +++ b/Documentation/git-remote-fd.txt @@ -50,10 +50,6 @@ EXAMPLES `git push fd::7,8/bar master`:: Same as above. -Documentation --------------- -Documentation by Ilari Liusvaara and the Git list <git@vger.kernel.org> - GIT --- Part of the linkgit:git[1] suite diff --git a/Documentation/git-replace.txt b/Documentation/git-replace.txt index f373ab48d..0a02f7065 100644 --- a/Documentation/git-replace.txt +++ b/Documentation/git-replace.txt @@ -10,7 +10,7 @@ SYNOPSIS [verse] 'git replace' [-f] <object> <replacement> 'git replace' -d <object>... -'git replace' -l [<pattern>] +'git replace' [--format=<format>] [-l [<pattern>]] DESCRIPTION ----------- @@ -70,6 +70,23 @@ OPTIONS Typing "git replace" without arguments, also lists all replace refs. +--format=<format>:: + When listing, use the specified <format>, which can be one of + 'short', 'medium' and 'long'. When omitted, the format + defaults to 'short'. + +FORMATS +------- + +The following format are available: + +* 'short': + <replaced sha1> +* 'medium': + <replaced sha1> -> <replacement sha1> +* 'long': + <replaced sha1> (<replaced type>) -> <replacement sha1> (<replacement type>) + CREATING REPLACEMENT OBJECTS ---------------------------- diff --git a/Documentation/git-repo-config.txt b/Documentation/git-repo-config.txt deleted file mode 100644 index 9ec115b9e..000000000 --- a/Documentation/git-repo-config.txt +++ /dev/null @@ -1,23 +0,0 @@ -git-repo-config(1) -================== - -NAME ----- -git-repo-config - Get and set repository or global options - - -SYNOPSIS --------- -[verse] -'git repo-config' ... - - -DESCRIPTION ------------ - -This is a synonym for linkgit:git-config[1]. Please refer to the -documentation of that command. - -GIT ---- -Part of the linkgit:git[1] suite diff --git a/Documentation/git-reset.txt b/Documentation/git-reset.txt index f445cb38f..24bf4d55f 100644 --- a/Documentation/git-reset.txt +++ b/Documentation/git-reset.txt @@ -21,7 +21,7 @@ to HEAD in all forms. 'git reset' [-q] [<tree-ish>] [--] <paths>...:: This form resets the index entries for all <paths> to their - state at <tree-ish>. (It does not affect the working tree, nor + state at <tree-ish>. (It does not affect the working tree or the current branch.) + This means that `git reset <paths>` is the opposite of `git add @@ -51,7 +51,7 @@ section of linkgit:git-add[1] to learn how to operate the `--patch` mode. + -- --soft:: - Does not touch the index file nor the working tree at all (but + Does not touch the index file or the working tree at all (but resets the head to <commit>, just like all modes do). This leaves all your changed files "Changes to be committed", as 'git status' would put it. @@ -115,7 +115,7 @@ and changes with these files are distracting. <2> Somebody asks you to pull, and the changes sounds worthy of merging. <3> However, you already dirtied the index (i.e. your index does not match the HEAD commit). But you know the pull you are going -to make does not affect frotz.c nor filfre.c, so you revert the +to make does not affect frotz.c or filfre.c, so you revert the index changes for these two files. Your changes in working tree remain there. <4> Then you can pull and merge, leaving frotz.c and filfre.c diff --git a/Documentation/git-rev-parse.txt b/Documentation/git-rev-parse.txt index 3cf0ce8b9..55ea1a037 100644 --- a/Documentation/git-rev-parse.txt +++ b/Documentation/git-rev-parse.txt @@ -50,6 +50,10 @@ Options for --parseopt the first non-option argument. This can be used to parse sub-commands that take options themselves. +--stuck-long:: + Only meaningful in `--parseopt` mode. Output the options in their + long form if available, and with their arguments stuck. + Options for Filtering ~~~~~~~~~~~~~~~~~~~~~ @@ -173,6 +177,20 @@ shown. If the pattern does not contain a globbing character (`?`, character (`?`, `*`, or `[`), it is turned into a prefix match by appending `/*`. +--exclude=<glob-pattern>:: + Do not include refs matching '<glob-pattern>' that the next `--all`, + `--branches`, `--tags`, `--remotes`, or `--glob` would otherwise + consider. Repetitions of this option accumulate exclusion patterns + up to the next `--all`, `--branches`, `--tags`, `--remotes`, or + `--glob` option (other options or arguments do not clear + accumlated patterns). ++ +The patterns given should not begin with `refs/heads`, `refs/tags`, or +`refs/remotes` when applied to `--branches`, `--tags`, or `--remotes`, +respectively, and they must begin with `refs/` when applied to `--glob` +or `--all`. If a trailing '/{asterisk}' is intended, it must be given +explicitly. + --disambiguate=<prefix>:: Show every object whose name begins with the given prefix. The <prefix> must be at least 4 hexadecimal digits long to @@ -285,7 +303,9 @@ Each line of options has this format: `<flags>` are of `*`, `=`, `?` or `!`. * Use `=` if the option takes an argument. - * Use `?` to mean that the option is optional (though its use is discouraged). + * Use `?` to mean that the option takes an optional argument. You + probably want to use the `--stuck-long` mode to be able to + unambiguously parse the optional argument. * Use `*` to mean that this option should not be listed in the usage generated for the `-h` argument. It's shown for `--help-all` as diff --git a/Documentation/git-rm.txt b/Documentation/git-rm.txt index 9d731b453..f1efc116e 100644 --- a/Documentation/git-rm.txt +++ b/Documentation/git-rm.txt @@ -170,6 +170,15 @@ of files and subdirectories under the `Documentation/` directory. (i.e. you are listing the files explicitly), it does not remove `subdir/git-foo.sh`. +BUGS +---- +Each time a superproject update removes a populated submodule +(e.g. when switching between commits before and after the removal) a +stale submodule checkout will remain in the old location. Removing the +old directory is only safe when it uses a gitfile, as otherwise the +history of the submodule will be deleted too. This step will be +obsolete when recursive submodule update has been implemented. + SEE ALSO -------- linkgit:git-add[1] diff --git a/Documentation/git-shell.txt b/Documentation/git-shell.txt index c35051ba5..e4bdd2235 100644 --- a/Documentation/git-shell.txt +++ b/Documentation/git-shell.txt @@ -66,7 +66,7 @@ EXAMPLE ------- To disable interactive logins, displaying a greeting instead: -+ + ---------------- $ chsh -s /usr/bin/git-shell $ mkdir $HOME/git-shell-commands diff --git a/Documentation/git-show-branch.txt b/Documentation/git-show-branch.txt index a515648ab..b91d4e545 100644 --- a/Documentation/git-show-branch.txt +++ b/Documentation/git-show-branch.txt @@ -25,7 +25,7 @@ and/or refs/tags) semi-visually. It cannot show more than 29 branches and commits at a time. It uses `showbranch.default` multi-valued configuration items if -no <rev> nor <glob> is given on the command line. +no <rev> or <glob> is given on the command line. OPTIONS diff --git a/Documentation/git-show-ref.txt b/Documentation/git-show-ref.txt index b0a309b11..2a6f89b23 100644 --- a/Documentation/git-show-ref.txt +++ b/Documentation/git-show-ref.txt @@ -89,7 +89,7 @@ OPTIONS Show references matching one or more patterns. Patterns are matched from the end of the full name, and only complete parts are matched, e.g. 'master' matches 'refs/heads/master', 'refs/remotes/origin/master', - 'refs/tags/jedi/master' but not 'refs/heads/mymaster' nor + 'refs/tags/jedi/master' but not 'refs/heads/mymaster' or 'refs/remotes/master/jedi'. OUTPUT @@ -175,6 +175,7 @@ FILES SEE ALSO -------- +linkgit:git-for-each-ref[1], linkgit:git-ls-remote[1], linkgit:git-update-ref[1], linkgit:gitrepository-layout[5] diff --git a/Documentation/git-tag.txt b/Documentation/git-tag.txt index c418c44d4..404257df9 100644 --- a/Documentation/git-tag.txt +++ b/Documentation/git-tag.txt @@ -103,8 +103,9 @@ OPTIONS + This option is only applicable when listing tags without annotation lines. ---contains <commit>:: - Only list tags which contain the specified commit. +--contains [<commit>]:: + Only list tags which contain the specified commit (HEAD if not + specified). --points-at <object>:: Only list tags of the given object. diff --git a/Documentation/git-tar-tree.txt b/Documentation/git-tar-tree.txt deleted file mode 100644 index f7362dc2d..000000000 --- a/Documentation/git-tar-tree.txt +++ /dev/null @@ -1,82 +0,0 @@ -git-tar-tree(1) -=============== - -NAME ----- -git-tar-tree - Create a tar archive of the files in the named tree object - - -SYNOPSIS --------- -[verse] -'git tar-tree' [--remote=<repo>] <tree-ish> [ <base> ] - -DESCRIPTION ------------ -THIS COMMAND IS DEPRECATED. Use 'git archive' with `--format=tar` -option instead (and move the <base> argument to `--prefix=base/`). - -Creates a tar archive containing the tree structure for the named tree. -When <base> is specified it is added as a leading path to the files in the -generated tar archive. - -'git tar-tree' behaves differently when given a tree ID versus when given -a commit ID or tag ID. In the first case the current time is used as -modification time of each file in the archive. In the latter case the -commit time as recorded in the referenced commit object is used instead. -Additionally the commit ID is stored in a global extended pax header. -It can be extracted using 'git get-tar-commit-id'. - -OPTIONS -------- - -<tree-ish>:: - The tree or commit to produce tar archive for. If it is - the object name of a commit object. - -<base>:: - Leading path to the files in the resulting tar archive. - ---remote=<repo>:: - Instead of making a tar archive from local repository, - retrieve a tar archive from a remote repository. - -CONFIGURATION -------------- - -tar.umask:: - This variable can be used to restrict the permission bits of - tar archive entries. The default is 0002, which turns off the - world write bit. The special value "user" indicates that the - archiving user's umask will be used instead. See umask(2) for - details. - -EXAMPLES --------- -`git tar-tree HEAD junk | (cd /var/tmp/ && tar xf -)`:: - - Create a tar archive that contains the contents of the - latest commit on the current branch, and extracts it in - `/var/tmp/junk` directory. - -`git tar-tree v1.4.0 git-1.4.0 | gzip >git-1.4.0.tar.gz`:: - - Create a tarball for v1.4.0 release. - -`git tar-tree v1.4.0^{tree} git-1.4.0 | gzip >git-1.4.0.tar.gz`:: - - Create a tarball for v1.4.0 release, but without a - global extended pax header. - -`git tar-tree --remote=example.com:git.git v1.4.0 >git-1.4.0.tar`:: - - Get a tarball v1.4.0 from example.com. - -`git tar-tree HEAD:Documentation/ git-docs > git-1.4.0-docs.tar`:: - - Put everything in the current head's Documentation/ directory - into 'git-1.4.0-docs.tar', with the prefix 'git-docs/'. - -GIT ---- -Part of the linkgit:git[1] suite diff --git a/Documentation/git.txt b/Documentation/git.txt index 64da795ab..3d54378f2 100644 --- a/Documentation/git.txt +++ b/Documentation/git.txt @@ -43,6 +43,15 @@ unreleased) version of Git, that is available from 'master' branch of the `git.git` repository. Documentation for older releases are available here: +* link:v1.9.4/git.html[documentation for release 1.9.4] + +* release notes for + link:RelNotes/1.9.4.txt[1.9.4], + link:RelNotes/1.9.3.txt[1.9.3], + link:RelNotes/1.9.2.txt[1.9.2], + link:RelNotes/1.9.1.txt[1.9.1], + link:RelNotes/1.9.0.txt[1.9.0]. + * link:v1.8.5.5/git.html[documentation for release 1.8.5.5] * release notes for @@ -810,6 +819,15 @@ temporary file --- it is removed when 'GIT_EXTERNAL_DIFF' exits. + For a path that is unmerged, 'GIT_EXTERNAL_DIFF' is called with 1 parameter, <path>. ++ +For each path 'GIT_EXTERNAL_DIFF' is called, two environment variables, +'GIT_DIFF_PATH_COUNTER' and 'GIT_DIFF_PATH_TOTAL' are set. + +'GIT_DIFF_PATH_COUNTER':: + A 1-based counter incremented by one for every path. + +'GIT_DIFF_PATH_TOTAL':: + The total number of paths. other ~~~~~ diff --git a/Documentation/gitattributes.txt b/Documentation/gitattributes.txt index b322a2666..643c1ba92 100644 --- a/Documentation/gitattributes.txt +++ b/Documentation/gitattributes.txt @@ -930,9 +930,12 @@ state. DEFINING MACRO ATTRIBUTES ------------------------- -Custom macro attributes can be defined only in the `.gitattributes` -file at the toplevel (i.e. not in any subdirectory). The built-in -macro attribute "binary" is equivalent to: +Custom macro attributes can be defined only in top-level gitattributes +files (`$GIT_DIR/info/attributes`, the `.gitattributes` file at the +top level of the working tree, or the global or system-wide +gitattributes files), not in `.gitattributes` files in working tree +subdirectories. The built-in macro attribute "binary" is equivalent +to: ------------ [attr]binary -diff -merge -text diff --git a/Documentation/gitcli.txt b/Documentation/gitcli.txt index 41bed2983..1c3e109cb 100644 --- a/Documentation/gitcli.txt +++ b/Documentation/gitcli.txt @@ -28,7 +28,7 @@ arguments. Here are the rules: they can be disambiguated by placing `--` between them. E.g. `git diff -- HEAD` is, "I have a file called HEAD in my work tree. Please show changes between the version I staged in the index - and what I have in the work tree for that file". not "show difference + and what I have in the work tree for that file", not "show difference between the HEAD commit and the work tree as a whole". You can say `git diff HEAD --` to ask for the latter. @@ -72,11 +72,11 @@ scripting Git: * splitting short options to separate words (prefer `git foo -a -b` to `git foo -ab`, the latter may not even work). - * when a command line option takes an argument, use the 'sticked' form. In + * when a command line option takes an argument, use the 'stuck' form. In other words, write `git foo -oArg` instead of `git foo -o Arg` for short options, and `git foo --long-opt=Arg` instead of `git foo --long-opt Arg` for long options. An option that takes optional option-argument must be - written in the 'sticked' form. + written in the 'stuck' form. * when you give a revision parameter to a command, make sure the parameter is not ambiguous with a name of a file in the work tree. E.g. do not write @@ -165,7 +165,7 @@ $ git foo -o Arg ---------------------------- However, this is *NOT* allowed for switches with an optional value, where the -'sticked' form must be used: +'stuck' form must be used: ---------------------------- $ git describe --abbrev HEAD # correct $ git describe --abbrev=10 HEAD # correct diff --git a/Documentation/githooks.txt b/Documentation/githooks.txt index d48bf4d6f..d954bf6ba 100644 --- a/Documentation/githooks.txt +++ b/Documentation/githooks.txt @@ -251,7 +251,7 @@ three parameters: - the name of the ref being updated, - the old object name stored in the ref, - - and the new objectname to be stored in the ref. + - and the new object name to be stored in the ref. A zero exit from the update hook allows the ref to be updated. Exiting with a non-zero status prevents 'git-receive-pack' diff --git a/Documentation/gitignore.txt b/Documentation/gitignore.txt index f97196051..b08d34d84 100644 --- a/Documentation/gitignore.txt +++ b/Documentation/gitignore.txt @@ -7,7 +7,7 @@ gitignore - Specifies intentionally untracked files to ignore SYNOPSIS -------- -$GIT_DIR/info/exclude, .gitignore +$HOME/.config/git/ignore, $GIT_DIR/info/exclude, .gitignore DESCRIPTION ----------- @@ -79,8 +79,10 @@ PATTERN FORMAT - An optional prefix "`!`" which negates the pattern; any matching file excluded by a previous pattern will become - included again. If a negated pattern matches, this will - override lower precedence patterns sources. + included again. It is not possible to re-include a file if a parent + directory of that file is excluded. Git doesn't list excluded + directories for performance reasons, so any patterns on contained + files have no effect, no matter where they are defined. Put a backslash ("`\`") in front of the first "`!`" for patterns that begin with a literal "`!`", for example, "`\!important!.txt`". @@ -182,6 +184,19 @@ Another example: The second .gitignore prevents Git from ignoring `arch/foo/kernel/vmlinux.lds.S`. +Example to exclude everything except a specific directory `foo/bar` +(note the `/*` - without the slash, the wildcard would also exclude +everything within `foo/bar`): + +-------------------------------------------------------------- + $ cat .gitignore + # exclude everything except directory foo/bar + /* + !/foo + /foo/* + !/foo/bar +-------------------------------------------------------------- + SEE ALSO -------- linkgit:git-rm[1], diff --git a/Documentation/gitk.txt b/Documentation/gitk.txt index d44e14c13..1e9e38ae4 100644 --- a/Documentation/gitk.txt +++ b/Documentation/gitk.txt @@ -98,6 +98,22 @@ linkgit:git-rev-list[1] for a complete list. (See "History simplification" in linkgit:git-log[1] for a more detailed explanation.) +-L<start>,<end>:<file>:: +-L:<regex>:<file>:: + + Trace the evolution of the line range given by "<start>,<end>" + (or the funcname regex <regex>) within the <file>. You may + not give any pathspec limiters. This is currently limited to + a walk starting from a single revision, i.e., you may only + give zero or one positive revision arguments. + You can specify this option more than once. ++ +*Note:* gitk (unlike linkgit:git-log[1]) currently only understands +this option if you specify it "glued together" with its argument. Do +*not* put a space after `-L`. ++ +include::line-range-format.txt[] + <revision range>:: Limit the revisions to show. This can be either a single revision diff --git a/Documentation/gitremote-helpers.txt b/Documentation/gitremote-helpers.txt index f1f4ca972..c2908db76 100644 --- a/Documentation/gitremote-helpers.txt +++ b/Documentation/gitremote-helpers.txt @@ -437,6 +437,13 @@ set by Git if the remote helper has the 'option' capability. 'option check-connectivity' \{'true'|'false'\}:: Request the helper to check connectivity of a clone. +'option cloning \{'true'|'false'\}:: + Notify the helper this is a clone request (i.e. the current + repository is guaranteed empty). + +'option update-shallow \{'true'|'false'\}:: + Allow to extend .git/shallow if the new refs require it. + SEE ALSO -------- linkgit:git-remote[1] diff --git a/Documentation/gitweb.conf.txt b/Documentation/gitweb.conf.txt index e2113d93c..952f503af 100644 --- a/Documentation/gitweb.conf.txt +++ b/Documentation/gitweb.conf.txt @@ -630,13 +630,13 @@ need to set this element to empty list i.e. `[]`. override:: If this field has a true value then the given feature is - overriddable, which means that it can be configured + overridable, which means that it can be configured (or enabled/disabled) on a per-repository basis. + Usually given "<feature>" is configurable via the `gitweb.<feature>` config variable in the per-repository Git configuration file. + -*Note* that no feature is overriddable by default. +*Note* that no feature is overridable by default. sub:: Internal detail of implementation. What is important is that @@ -849,6 +849,43 @@ time zones in the form of "+/-HHMM", such as "+0200". + Project specific override is not supported. +extra-branch-refs:: + List of additional directories under "refs" which are going to + be used as branch refs. For example if you have a gerrit setup + where all branches under refs/heads/ are official, + push-after-review ones and branches under refs/sandbox/, + refs/wip and refs/other are user ones where permissions are + much wider, then you might want to set this variable as + follows: ++ +-------------------------------------------------------------------------------- +$feature{'extra-branch-refs'}{'default'} = + ['sandbox', 'wip', 'other']; +-------------------------------------------------------------------------------- ++ +This feature can be configured on per-repository basis after setting +$feature{'extra-branch-refs'}{'override'} to true, via repository's +`gitweb.extraBranchRefs` configuration variable, which contains a +space separated list of refs. An example: ++ +-------------------------------------------------------------------------------- +[gitweb] + extraBranchRefs = sandbox wip other +-------------------------------------------------------------------------------- ++ +The gitweb.extraBranchRefs is actually a multi-valued configuration +variable, so following example is also correct and the result is the +same as of the snippet above: ++ +-------------------------------------------------------------------------------- +[gitweb] + extraBranchRefs = sandbox + extraBranchRefs = wip other +-------------------------------------------------------------------------------- ++ +It is an error to specify a ref that does not pass "git check-ref-format" +scrutiny. Duplicated values are filtered. + EXAMPLES -------- diff --git a/Documentation/glossary-content.txt b/Documentation/glossary-content.txt index aa1c8880d..378306f58 100644 --- a/Documentation/glossary-content.txt +++ b/Documentation/glossary-content.txt @@ -323,24 +323,26 @@ including Documentation/chapter_1/figure_1.jpg. A pathspec that begins with a colon `:` has special meaning. In the short form, the leading colon `:` is followed by zero or more "magic signature" letters (which optionally is terminated by another colon `:`), -and the remainder is the pattern to match against the path. The optional -colon that terminates the "magic signature" can be omitted if the pattern -begins with a character that cannot be a "magic signature" and is not a -colon. +and the remainder is the pattern to match against the path. +The "magic signature" consists of ASCII symbols that are neither +alphanumeric, glob, regex special charaters nor colon. +The optional colon that terminates the "magic signature" can be +omitted if the pattern begins with a character that does not belong to +"magic signature" symbol set and is not a colon. + In the long form, the leading colon `:` is followed by a open parenthesis `(`, a comma-separated list of zero or more "magic words", and a close parentheses `)`, and the remainder is the pattern to match against the path. + -The "magic signature" consists of an ASCII symbol that is not -alphanumeric. +A pathspec with only a colon means "there is no pathspec". This form +should not be combined with other pathspec. + -- -top `/`;; - The magic word `top` (mnemonic: `/`) makes the pattern match - from the root of the working tree, even when you are running - the command from inside a subdirectory. +top;; + The magic word `top` (magic signature: `/`) makes the pattern + match from the root of the working tree, even when you are + running the command from inside a subdirectory. literal;; Wildcards in the pattern such as `*` or `?` are treated @@ -377,14 +379,12 @@ full pathname may have special meaning: - Other consecutive asterisks are considered invalid. + Glob magic is incompatible with literal magic. + +exclude;; + After a path matches any non-exclude pathspec, it will be run + through all exclude pathspec (magic signature: `!`). If it + matches, the path is ignored. -- -+ -Currently only the slash `/` is recognized as the "magic signature", -but it is envisioned that we will support more types of magic in later -versions of Git. -+ -A pathspec with only a colon means "there is no pathspec". This form -should not be combined with other pathspec. [[def_parent]]parent:: A <<def_commit_object,commit object>> contains a (possibly empty) list diff --git a/Documentation/howto/maintain-git.txt b/Documentation/howto/maintain-git.txt index 33ae69c11..ca4378740 100644 --- a/Documentation/howto/maintain-git.txt +++ b/Documentation/howto/maintain-git.txt @@ -39,26 +39,26 @@ The policy on Integration is informally mentioned in "A Note from the maintainer" message, which is periodically posted to this mailing list after each feature release is made. - - Feature releases are numbered as vX.Y.Z and are meant to + - Feature releases are numbered as vX.Y.0 and are meant to contain bugfixes and enhancements in any area, including functionality, performance and usability, without regression. - One release cycle for a feature release is expected to last for eight to ten weeks. - - Maintenance releases are numbered as vX.Y.Z.W and are meant - to contain only bugfixes for the corresponding vX.Y.Z feature - release and earlier maintenance releases vX.Y.Z.V (V < W). + - Maintenance releases are numbered as vX.Y.Z and are meant + to contain only bugfixes for the corresponding vX.Y.0 feature + release and earlier maintenance releases vX.Y.W (W < Z). - 'master' branch is used to prepare for the next feature release. In other words, at some point, the tip of 'master' - branch is tagged with vX.Y.Z. + branch is tagged with vX.Y.0. - 'maint' branch is used to prepare for the next maintenance - release. After the feature release vX.Y.Z is made, the tip + release. After the feature release vX.Y.0 is made, the tip of 'maint' branch is set to that release, and bugfixes will accumulate on the branch, and at some point, the tip of the - branch is tagged with vX.Y.Z.1, vX.Y.Z.2, and so on. + branch is tagged with vX.Y.1, vX.Y.2, and so on. - 'next' branch is used to publish changes (both enhancements and fixes) that (1) have worthwhile goal, (2) are in a fairly @@ -86,6 +86,10 @@ this mailing list after each feature release is made. users are encouraged to test it so that regressions and bugs are found before new topics are merged to 'master'. +Note that before v1.9.0 release, the version numbers used to be +structured slightly differently. vX.Y.Z were feature releases while +vX.Y.Z.W were maintenance releases for vX.Y.Z. + A Typical Git Day ----------------- diff --git a/Documentation/howto/rebase-from-internal-branch.txt b/Documentation/howto/rebase-from-internal-branch.txt index 19ab604f1..02cb5f758 100644 --- a/Documentation/howto/rebase-from-internal-branch.txt +++ b/Documentation/howto/rebase-from-internal-branch.txt @@ -139,7 +139,7 @@ You fetch from upstream, but not merge. $ git fetch upstream This leaves the updated upstream head in .git/FETCH_HEAD but -does not touch your .git/HEAD nor .git/refs/heads/master. +does not touch your .git/HEAD or .git/refs/heads/master. You run "git rebase" now. $ git rebase FETCH_HEAD master diff --git a/Documentation/howto/revert-a-faulty-merge.txt b/Documentation/howto/revert-a-faulty-merge.txt index acf3e477e..462255ed5 100644 --- a/Documentation/howto/revert-a-faulty-merge.txt +++ b/Documentation/howto/revert-a-faulty-merge.txt @@ -54,7 +54,7 @@ where C and D are to fix what was broken in A and B, and you may already have some other changes on the mainline after W. If you merge the updated side branch (with D at its tip), none of the -changes made in A nor B will be in the result, because they were reverted +changes made in A or B will be in the result, because they were reverted by W. That is what Alan saw. Linus explains the situation: @@ -90,7 +90,7 @@ with: $ git revert W This history would (ignoring possible conflicts between what W and W..Y -changed) be equivalent to not having W nor Y at all in the history: +changed) be equivalent to not having W or Y at all in the history: ---o---o---o---M---x---x-------x---- / diff --git a/Documentation/howto/revert-branch-rebase.txt b/Documentation/howto/revert-branch-rebase.txt index 85f69dbac..149508e13 100644 --- a/Documentation/howto/revert-branch-rebase.txt +++ b/Documentation/howto/revert-branch-rebase.txt @@ -137,7 +137,7 @@ $ make clean test ;# make sure it did not cause other breakage. ------------------------------------------------ Everything is in the good order. I do not need the temporary branch -nor tag anymore, so remove them: +or tag anymore, so remove them: ------------------------------------------------ $ rm -f .git/refs/tags/pu-anchor diff --git a/Documentation/merge-options.txt b/Documentation/merge-options.txt index e1343155f..f08e9b80c 100644 --- a/Documentation/merge-options.txt +++ b/Documentation/merge-options.txt @@ -63,14 +63,13 @@ merge. --squash:: --no-squash:: - Produce the working tree and index state as if a real - merge happened (except for the merge information), - but do not actually make a commit or - move the `HEAD`, nor record `$GIT_DIR/MERGE_HEAD` to - cause the next `git commit` command to create a merge - commit. This allows you to create a single commit on - top of the current branch whose effect is the same as - merging another branch (or more in case of an octopus). + Produce the working tree and index state as if a real merge + happened (except for the merge information), but do not actually + make a commit, move the `HEAD`, or record `$GIT_DIR/MERGE_HEAD` + (to cause the next `git commit` command to create a merge + commit). This allows you to create a single commit on top of + the current branch whose effect is the same as merging another + branch (or more in case of an octopus). + With --no-squash perform the merge and commit the result. This option can be used to override --squash. diff --git a/Documentation/merge-strategies.txt b/Documentation/merge-strategies.txt index 49a9a7d53..feabc1ccf 100644 --- a/Documentation/merge-strategies.txt +++ b/Documentation/merge-strategies.txt @@ -1,10 +1,10 @@ MERGE STRATEGIES ---------------- -The merge mechanism ('git-merge' and 'git-pull' commands) allows the +The merge mechanism (`git merge` and `git pull` commands) allows the backend 'merge strategies' to be chosen with `-s` option. Some strategies can also take their own options, which can be passed by giving `-X<option>` -arguments to 'git-merge' and/or 'git-pull'. +arguments to `git merge` and/or `git pull`. resolve:: This can only resolve two heads (i.e. the current branch @@ -113,3 +113,11 @@ subtree:: match the tree structure of A, instead of reading the trees at the same level. This adjustment is also done to the common ancestor tree. + +With the strategies that use 3-way merge (including the default, 'recursive'), +if a change is made on both branches, but later reverted on one of the +branches, that change will be present in the merged result; some people find +this behavior confusing. It occurs because only the heads and the merge base +are considered when performing a merge, not the individual commits. The merge +algorithm therefore considers the reverted change as no change at all, and +substitutes the changed version instead. diff --git a/Documentation/pretty-formats.txt b/Documentation/pretty-formats.txt index 1d174fd0b..85d63532a 100644 --- a/Documentation/pretty-formats.txt +++ b/Documentation/pretty-formats.txt @@ -78,7 +78,7 @@ The 'raw' format shows the entire commit exactly as stored in the commit object. Notably, the SHA-1s are displayed in full, regardless of whether --abbrev or --no-abbrev are used, and 'parents' information show the -true parent commits, without taking grafts nor history +true parent commits, without taking grafts or history simplification into account. * 'format:<string>' diff --git a/Documentation/pretty-options.txt b/Documentation/pretty-options.txt index eea0e306a..8569e29d0 100644 --- a/Documentation/pretty-options.txt +++ b/Documentation/pretty-options.txt @@ -39,7 +39,7 @@ people using 80-column terminals. Show the notes (see linkgit:git-notes[1]) that annotate the commit, when showing the commit log message. This is the default for `git log`, `git show` and `git whatchanged` commands when - there is no `--pretty`, `--format` nor `--oneline` option given + there is no `--pretty`, `--format`, or `--oneline` option given on the command line. + By default, the notes shown are from the notes refs listed in the diff --git a/Documentation/rev-list-options.txt b/Documentation/rev-list-options.txt index 2991d70a4..47c8dcca9 100644 --- a/Documentation/rev-list-options.txt +++ b/Documentation/rev-list-options.txt @@ -153,6 +153,21 @@ parents) and `--max-parents=-1` (negative numbers denote no upper limit). is automatically prepended if missing. If pattern lacks '?', '{asterisk}', or '[', '/{asterisk}' at the end is implied. +--exclude=<glob-pattern>:: + + Do not include refs matching '<glob-pattern>' that the next `--all`, + `--branches`, `--tags`, `--remotes`, or `--glob` would otherwise + consider. Repetitions of this option accumulate exclusion patterns + up to the next `--all`, `--branches`, `--tags`, `--remotes`, or + `--glob` option (other options or arguments do not clear + accumlated patterns). ++ +The patterns given should not begin with `refs/heads`, `refs/tags`, or +`refs/remotes` when applied to `--branches`, `--tags`, or `--remotes`, +respectively, and they must begin with `refs/` when applied to `--glob` +or `--all`. If a trailing '/{asterisk}' is intended, it must be given +explicitly. + --ignore-missing:: Upon seeing an invalid object name in the input, pretend as if the bad input was not given. @@ -222,7 +237,7 @@ list. reflog entries from the most recent one to older ones. When this option is used you cannot specify commits to exclude (that is, '{caret}commit', 'commit1..commit2', - nor 'commit1\...commit2' notations cannot be used). + and 'commit1\...commit2' notations cannot be used). + With `--pretty` format other than `oneline` (for obvious reasons), this causes the output to have two extra lines of information diff --git a/Documentation/revisions.txt b/Documentation/revisions.txt index 2c06ed34a..5a286d0d6 100644 --- a/Documentation/revisions.txt +++ b/Documentation/revisions.txt @@ -88,7 +88,7 @@ some output processing may assume ref names in UTF-8. branch 'blabla' then '@\{1\}' means the same as 'blabla@\{1\}'. '@\{-<n>\}', e.g. '@\{-1\}':: - The construct '@\{-<n>\}' means the <n>th branch checked out + The construct '@\{-<n>\}' means the <n>th branch/commit checked out before the current one. '<branchname>@\{upstream\}', e.g. 'master@\{upstream\}', '@\{u\}':: diff --git a/Documentation/technical/api-builtin.txt b/Documentation/technical/api-builtin.txt index f3c1357b7..e3d6e7a79 100644 --- a/Documentation/technical/api-builtin.txt +++ b/Documentation/technical/api-builtin.txt @@ -14,8 +14,8 @@ Git: . Add the external declaration for the function to `builtin.h`. -. Add the command to `commands[]` table in `handle_internal_command()`, - defined in `git.c`. The entry should look like: +. Add the command to the `commands[]` table defined in `git.c`. + The entry should look like: { "foo", cmd_foo, <options> }, + diff --git a/Documentation/technical/api-gitattributes.txt b/Documentation/technical/api-gitattributes.txt index ce363b630..260266867 100644 --- a/Documentation/technical/api-gitattributes.txt +++ b/Documentation/technical/api-gitattributes.txt @@ -99,7 +99,7 @@ static void setup_check(void) The attribute is Unset, by listing the name of the attribute prefixed with a dash - for the path. } else if (ATTR_UNSET(value)) { - The attribute is not set nor unset for the path. + The attribute is neither set nor unset for the path. } else if (!strcmp(value, "input")) { If none of ATTR_TRUE(), ATTR_FALSE(), or ATTR_UNSET() is true, the value is a string set in the gitattributes diff --git a/Documentation/technical/api-parse-options.txt b/Documentation/technical/api-parse-options.txt index 0be2b5159..be50cf4de 100644 --- a/Documentation/technical/api-parse-options.txt +++ b/Documentation/technical/api-parse-options.txt @@ -29,9 +29,9 @@ that allow to change the behavior of a command. The parse-options API allows: -* 'sticked' and 'separate form' of options with arguments. - `-oArg` is sticked, `-o Arg` is separate form. - `--option=Arg` is sticked, `--option Arg` is separate form. +* 'stuck' and 'separate form' of options with arguments. + `-oArg` is stuck, `-o Arg` is separate form. + `--option=Arg` is stuck, `--option Arg` is separate form. * Long options may be 'abbreviated', as long as the abbreviation is unambiguous. diff --git a/Documentation/technical/api-remote.txt b/Documentation/technical/api-remote.txt index 4be87768f..5d245aa9d 100644 --- a/Documentation/technical/api-remote.txt +++ b/Documentation/technical/api-remote.txt @@ -58,16 +58,16 @@ default remote, given the current branch and configuration. struct refspec -------------- -A struct refspec holds the parsed interpretation of a refspec. If it -will force updates (starts with a '+'), force is true. If it is a -pattern (sides end with '*') pattern is true. src and dest are the two -sides (if a pattern, only the part outside of the wildcards); if there -is only one side, it is src, and dst is NULL; if sides exist but are -empty (i.e., the refspec either starts or ends with ':'), the -corresponding side is "". - -This parsing can be done to an array of strings to give an array of -struct refpsecs with parse_ref_spec(). +A struct refspec holds the parsed interpretation of a refspec. If it +will force updates (starts with a '+'), force is true. If it is a +pattern (sides end with '*') pattern is true. src and dest are the +two sides (including '*' characters if present); if there is only one +side, it is src, and dst is NULL; if sides exist but are empty (i.e., +the refspec either starts or ends with ':'), the corresponding side is +"". + +An array of strings can be parsed into an array of struct refspecs +using parse_fetch_refspec() or parse_push_refspec(). remote_find_tracking(), given a remote and a struct refspec with either src or dst filled out, will fill out the other such that the diff --git a/Documentation/technical/http-protocol.txt b/Documentation/technical/http-protocol.txt index d21d77d1d..544373b16 100644 --- a/Documentation/technical/http-protocol.txt +++ b/Documentation/technical/http-protocol.txt @@ -20,13 +20,13 @@ URL syntax documented by RFC 1738, so they are of the form: http://<host>:<port>/<path>?<searchpart> -Within this documentation the placeholder $GIT_URL will stand for +Within this documentation the placeholder `$GIT_URL` will stand for the http:// repository URL entered by the end-user. -Servers SHOULD handle all requests to locations matching $GIT_URL, as +Servers SHOULD handle all requests to locations matching `$GIT_URL`, as both the "smart" and "dumb" HTTP protocols used by Git operate by appending additional path components onto the end of the user -supplied $GIT_URL string. +supplied `$GIT_URL` string. An example of a dumb client requesting for a loose object: @@ -43,10 +43,10 @@ An example of a request to a submodule: $GIT_URL: http://example.com/git/repo.git/path/submodule.git URL request: http://example.com/git/repo.git/path/submodule.git/info/refs -Clients MUST strip a trailing '/', if present, from the user supplied -$GIT_URL string to prevent empty path tokens ('//') from appearing +Clients MUST strip a trailing `/`, if present, from the user supplied +`$GIT_URL` string to prevent empty path tokens (`//`) from appearing in any URL sent to a server. Compatible clients MUST expand -'$GIT_URL/info/refs' as 'foo/info/refs' and not 'foo//info/refs'. +`$GIT_URL/info/refs` as `foo/info/refs` and not `foo//info/refs`. Authentication @@ -103,14 +103,14 @@ Except where noted, all standard HTTP behavior SHOULD be assumed by both client and server. This includes (but is not necessarily limited to): -If there is no repository at $GIT_URL, or the resource pointed to by a -location matching $GIT_URL does not exist, the server MUST NOT respond -with '200 OK' response. A server SHOULD respond with -'404 Not Found', '410 Gone', or any other suitable HTTP status code +If there is no repository at `$GIT_URL`, or the resource pointed to by a +location matching `$GIT_URL` does not exist, the server MUST NOT respond +with `200 OK` response. A server SHOULD respond with +`404 Not Found`, `410 Gone`, or any other suitable HTTP status code which does not imply the resource exists as requested. -If there is a repository at $GIT_URL, but access is not currently -permitted, the server MUST respond with the '403 Forbidden' HTTP +If there is a repository at `$GIT_URL`, but access is not currently +permitted, the server MUST respond with the `403 Forbidden` HTTP status code. Servers SHOULD support both HTTP 1.0 and HTTP 1.1. @@ -126,9 +126,9 @@ Servers MAY return ETag and/or Last-Modified headers. Clients MAY revalidate cached entities by including If-Modified-Since and/or If-None-Match request headers. -Servers MAY return '304 Not Modified' if the relevant headers appear +Servers MAY return `304 Not Modified` if the relevant headers appear in the request and the entity has not changed. Clients MUST treat -'304 Not Modified' identical to '200 OK' by reusing the cached entity. +`304 Not Modified` identical to `200 OK` by reusing the cached entity. Clients MAY reuse a cached entity without revalidation if the Cache-Control and/or Expires header permits caching. Clients and @@ -148,7 +148,7 @@ HTTP clients that only support the "dumb" protocol MUST discover references by making a request for the special info/refs file of the repository. -Dumb HTTP clients MUST make a GET request to $GIT_URL/info/refs, +Dumb HTTP clients MUST make a `GET` request to `$GIT_URL/info/refs`, without any search/query parameters. C: GET $GIT_URL/info/refs HTTP/1.0 @@ -161,21 +161,21 @@ without any search/query parameters. S: a3c2e2402b99163d1d59756e5f207ae21cccba4c refs/tags/v1.0^{} The Content-Type of the returned info/refs entity SHOULD be -"text/plain; charset=utf-8", but MAY be any content type. +`text/plain; charset=utf-8`, but MAY be any content type. Clients MUST NOT attempt to validate the returned Content-Type. Dumb servers MUST NOT return a return type starting with -"application/x-git-". +`application/x-git-`. Cache-Control headers MAY be returned to disable caching of the returned entity. When examining the response clients SHOULD only examine the HTTP -status code. Valid responses are '200 OK', or '304 Not Modified'. +status code. Valid responses are `200 OK`, or `304 Not Modified`. The returned content is a UNIX formatted text file describing each ref and its known value. The file SHOULD be sorted by name according to the C locale ordering. The file SHOULD NOT include -the default ref named 'HEAD'. +the default ref named `HEAD`. info_refs = *( ref_record ) ref_record = any_ref / peeled_ref @@ -192,13 +192,14 @@ HTTP clients that support the "smart" protocol (or both the a parameterized request for the info/refs file of the repository. The request MUST contain exactly one query parameter, -'service=$servicename', where $servicename MUST be the service +`service=$servicename`, where `$servicename` MUST be the service name the client wishes to contact to complete the operation. The request MUST NOT contain additional query parameters. C: GET $GIT_URL/info/refs?service=git-upload-pack HTTP/1.0 - dumb server reply: +dumb server reply: + S: 200 OK S: S: 95dcfa3633004da0049d3d0fa03f80589cbcaf31 refs/heads/maint @@ -206,7 +207,8 @@ The request MUST NOT contain additional query parameters. S: 2cb58b79488a98d2721cea644875a8dd0026b115 refs/tags/v1.0 S: a3c2e2402b99163d1d59756e5f207ae21cccba4c refs/tags/v1.0^{} - smart server reply: +smart server reply: + S: 200 OK S: Content-Type: application/x-git-upload-pack-advertisement S: Cache-Control: no-cache @@ -228,7 +230,7 @@ Smart Server Response ^^^^^^^^^^^^^^^^^^^^^ If the server does not recognize the requested service name, or the requested service name has been disabled by the server administrator, -the server MUST respond with the '403 Forbidden' HTTP status code. +the server MUST respond with the `403 Forbidden` HTTP status code. Otherwise, smart servers MUST respond with the smart server reply format for the requested service name. @@ -236,35 +238,35 @@ format for the requested service name. Cache-Control headers SHOULD be used to disable caching of the returned entity. -The Content-Type MUST be 'application/x-$servicename-advertisement'. +The Content-Type MUST be `application/x-$servicename-advertisement`. Clients SHOULD fall back to the dumb protocol if another content type is returned. When falling back to the dumb protocol clients -SHOULD NOT make an additional request to $GIT_URL/info/refs, but +SHOULD NOT make an additional request to `$GIT_URL/info/refs`, but instead SHOULD use the response already in hand. Clients MUST NOT continue if they do not support the dumb protocol. -Clients MUST validate the status code is either '200 OK' or -'304 Not Modified'. +Clients MUST validate the status code is either `200 OK` or +`304 Not Modified`. Clients MUST validate the first five bytes of the response entity -matches the regex "^[0-9a-f]{4}#". If this test fails, clients +matches the regex `^[0-9a-f]{4}#`. If this test fails, clients MUST NOT continue. Clients MUST parse the entire response as a sequence of pkt-line records. -Clients MUST verify the first pkt-line is "# service=$servicename". +Clients MUST verify the first pkt-line is `# service=$servicename`. Servers MUST set $servicename to be the request parameter value. Servers SHOULD include an LF at the end of this line. Clients MUST ignore an LF at the end of the line. -Servers MUST terminate the response with the magic "0000" end +Servers MUST terminate the response with the magic `0000` end pkt-line marker. The returned response is a pkt-line stream describing each ref and its known value. The stream SHOULD be sorted by name according to the C locale ordering. The stream SHOULD include the default ref -named 'HEAD' as the first ref. The stream MUST include capability +named `HEAD` as the first ref. The stream MUST include capability declarations behind a NUL on the first ref. smart_reply = PKT-LINE("# service=$servicename" LF) @@ -286,12 +288,13 @@ declarations behind a NUL on the first ref. peeled_ref = PKT-LINE(obj-id SP name LF) PKT-LINE(obj-id SP name "^{}" LF + Smart Service git-upload-pack ------------------------------ -This service reads from the repository pointed to by $GIT_URL. +This service reads from the repository pointed to by `$GIT_URL`. Clients MUST first perform ref discovery with -'$GIT_URL/info/refs?service=git-upload-pack'. +`$GIT_URL/info/refs?service=git-upload-pack`. C: POST $GIT_URL/git-upload-pack HTTP/1.0 C: Content-Type: application/x-git-upload-pack-request @@ -313,10 +316,10 @@ to prevent caching of the response. Servers SHOULD support all capabilities defined here. -Clients MUST send at least one 'want' command in the request body. -Clients MUST NOT reference an id in a 'want' command which did not +Clients MUST send at least one "want" command in the request body. +Clients MUST NOT reference an id in a "want" command which did not appear in the response obtained through ref discovery unless the -server advertises capability "allow-tip-sha1-in-want". +server advertises capability `allow-tip-sha1-in-want`. compute_request = want_list have_list @@ -332,128 +335,128 @@ server advertises capability "allow-tip-sha1-in-want". have_list = *PKT-LINE("have" SP id LF) TODO: Document this further. -TODO: Don't use uppercase for variable names below. The Negotiation Algorithm ~~~~~~~~~~~~~~~~~~~~~~~~~ The computation to select the minimal pack proceeds as follows -(c = client, s = server): +(C = client, S = server): + +'init step:' + +C: Use ref discovery to obtain the advertised refs. + +C: Place any object seen into set `advertised`. - init step: - (c) Use ref discovery to obtain the advertised refs. - (c) Place any object seen into set ADVERTISED. +C: Build an empty set, `common`, to hold the objects that are later + determined to be on both ends. - (c) Build an empty set, COMMON, to hold the objects that are later - determined to be on both ends. - (c) Build a set, WANT, of the objects from ADVERTISED the client - wants to fetch, based on what it saw during ref discovery. +C: Build a set, `want`, of the objects from `advertised` the client + wants to fetch, based on what it saw during ref discovery. - (c) Start a queue, C_PENDING, ordered by commit time (popping newest - first). Add all client refs. When a commit is popped from - the queue its parents SHOULD be automatically inserted back. - Commits MUST only enter the queue once. +C: Start a queue, `c_pending`, ordered by commit time (popping newest + first). Add all client refs. When a commit is popped from + the queue its parents SHOULD be automatically inserted back. + Commits MUST only enter the queue once. - one compute step: - (c) Send one $GIT_URL/git-upload-pack request: +'one compute step:' - C: 0032want <WANT #1>............................... - C: 0032want <WANT #2>............................... +C: Send one `$GIT_URL/git-upload-pack` request: + + C: 0032want <want #1>............................... + C: 0032want <want #2>............................... .... - C: 0032have <COMMON #1>............................. - C: 0032have <COMMON #2>............................. + C: 0032have <common #1>............................. + C: 0032have <common #2>............................. .... - C: 0032have <HAVE #1>............................... - C: 0032have <HAVE #2>............................... + C: 0032have <have #1>............................... + C: 0032have <have #2>............................... .... C: 0000 - The stream is organized into "commands", with each command - appearing by itself in a pkt-line. Within a command line - the text leading up to the first space is the command name, - and the remainder of the line to the first LF is the value. - Command lines are terminated with an LF as the last byte of - the pkt-line value. +The stream is organized into "commands", with each command +appearing by itself in a pkt-line. Within a command line +the text leading up to the first space is the command name, +and the remainder of the line to the first LF is the value. +Command lines are terminated with an LF as the last byte of +the pkt-line value. - Commands MUST appear in the following order, if they appear - at all in the request stream: +Commands MUST appear in the following order, if they appear +at all in the request stream: - * want - * have +* "want" +* "have" - The stream is terminated by a pkt-line flush ("0000"). +The stream is terminated by a pkt-line flush (`0000`). - A single "want" or "have" command MUST have one hex formatted - SHA-1 as its value. Multiple SHA-1s MUST be sent by sending - multiple commands. +A single "want" or "have" command MUST have one hex formatted +SHA-1 as its value. Multiple SHA-1s MUST be sent by sending +multiple commands. - The HAVE list is created by popping the first 32 commits - from C_PENDING. Less can be supplied if C_PENDING empties. +The `have` list is created by popping the first 32 commits +from `c_pending`. Less can be supplied if `c_pending` empties. - If the client has sent 256 HAVE commits and has not yet - received one of those back from S_COMMON, or the client has - emptied C_PENDING it SHOULD include a "done" command to let - the server know it won't proceed: +If the client has sent 256 "have" commits and has not yet +received one of those back from `s_common`, or the client has +emptied `c_pending` it SHOULD include a "done" command to let +the server know it won't proceed: C: 0009done - (s) Parse the git-upload-pack request: - - Verify all objects in WANT are directly reachable from refs. - - The server MAY walk backwards through history or through - the reflog to permit slightly stale requests. +S: Parse the git-upload-pack request: - If no WANT objects are received, send an error: +Verify all objects in `want` are directly reachable from refs. -TODO: Define error if no want lines are requested. +The server MAY walk backwards through history or through +the reflog to permit slightly stale requests. - If any WANT object is not reachable, send an error: +If no "want" objects are received, send an error: +TODO: Define error if no "want" lines are requested. -TODO: Define error if an invalid want is requested. +If any "want" object is not reachable, send an error: +TODO: Define error if an invalid "want" is requested. - Create an empty list, S_COMMON. +Create an empty list, `s_common`. - If 'have' was sent: +If "have" was sent: - Loop through the objects in the order supplied by the client. - For each object, if the server has the object reachable from - a ref, add it to S_COMMON. If a commit is added to S_COMMON, - do not add any ancestors, even if they also appear in HAVE. +Loop through the objects in the order supplied by the client. - (s) Send the git-upload-pack response: +For each object, if the server has the object reachable from +a ref, add it to `s_common`. If a commit is added to `s_common`, +do not add any ancestors, even if they also appear in `have`. - If the server has found a closed set of objects to pack or the - request ends with "done", it replies with the pack. +S: Send the git-upload-pack response: +If the server has found a closed set of objects to pack or the +request ends with "done", it replies with the pack. TODO: Document the pack based response - S: PACK... - The returned stream is the side-band-64k protocol supported - by the git-upload-pack service, and the pack is embedded into - stream 1. Progress messages from the server side MAY appear - in stream 2. + S: PACK... - Here a "closed set of objects" is defined to have at least - one path from every WANT to at least one COMMON object. +The returned stream is the side-band-64k protocol supported +by the git-upload-pack service, and the pack is embedded into +stream 1. Progress messages from the server side MAY appear +in stream 2. - If the server needs more information, it replies with a - status continue response: +Here a "closed set of objects" is defined to have at least +one path from every "want" to at least one "common" object. +If the server needs more information, it replies with a +status continue response: TODO: Document the non-pack response - (c) Parse the upload-pack response: - -TODO: Document parsing response +C: Parse the upload-pack response: + TODO: Document parsing response - Do another compute step. +'Do another compute step.' Smart Service git-receive-pack ------------------------------ -This service reads from the repository pointed to by $GIT_URL. +This service reads from the repository pointed to by `$GIT_URL`. Clients MUST first perform ref discovery with -'$GIT_URL/info/refs?service=git-receive-pack'. +`$GIT_URL/info/refs?service=git-receive-pack`. C: POST $GIT_URL/git-receive-pack HTTP/1.0 C: Content-Type: application/x-git-receive-pack-request diff --git a/Documentation/technical/pack-protocol.txt b/Documentation/technical/pack-protocol.txt index b898e9798..18dea8d15 100644 --- a/Documentation/technical/pack-protocol.txt +++ b/Documentation/technical/pack-protocol.txt @@ -161,6 +161,7 @@ MUST peel the ref if it's an annotated tag. ---- advertised-refs = (no-refs / list-of-refs) + *shallow flush-pkt no-refs = PKT-LINE(zero-id SP "capabilities^{}" @@ -174,6 +175,8 @@ MUST peel the ref if it's an annotated tag. other-tip = obj-id SP refname LF other-peeled = obj-id SP refname "^{}" LF + shallow = PKT-LINE("shallow" SP obj-id) + capability-list = capability *(SP capability) capability = 1*(LC_ALPHA / DIGIT / "-" / "_") LC_ALPHA = %x61-7A @@ -234,10 +237,10 @@ The client now sends the maximum commit history depth it wants for this transaction, which is the number of commits it wants from the tip of the history, if any, as a 'deepen' line. A depth of 0 is the same as not making a depth request. The client does not want to receive -any commits beyond this depth, nor objects needed only to complete -those commits. Commits whose parents are not received as a result are -defined as shallow and marked as such in the server. This information -is sent back to the client in the next step. +any commits beyond this depth, nor does it want objects needed only to +complete those commits. Commits whose parents are not received as a +result are defined as shallow and marked as such in the server. This +information is sent back to the client in the next step. Once all the 'want's and 'shallow's (and optional 'deepen') are transferred, clients MUST send a flush-pkt, to tell the server side @@ -335,7 +338,8 @@ during a prior round. This helps to ensure that at least one common ancestor is found before we give up entirely. Once the 'done' line is read from the client, the server will either -send a final 'ACK obj-id' or it will send a 'NAK'. The server only sends +send a final 'ACK obj-id' or it will send a 'NAK'. 'obj-id' is the object +name of the last commit determined to be common. The server only sends ACK after 'done' if there is at least one common base and multi_ack or multi_ack_detailed is enabled. The server always sends NAK after 'done' if there is no common base found. @@ -461,7 +465,9 @@ contain all the objects that the server will need to complete the new references. ---- - update-request = command-list [pack-file] + update-request = *shallow command-list [pack-file] + + shallow = PKT-LINE("shallow" SP obj-id) command-list = PKT-LINE(command NUL capability-list LF) *PKT-LINE(command LF) diff --git a/Documentation/technical/protocol-capabilities.txt b/Documentation/technical/protocol-capabilities.txt index fd8ffa5df..e17434384 100644 --- a/Documentation/technical/protocol-capabilities.txt +++ b/Documentation/technical/protocol-capabilities.txt @@ -69,17 +69,50 @@ ends. Without multi_ack the client would have sent that c-b-a chain anyway, interleaved with S-R-Q. +multi_ack_detailed +------------------ +This is an extension of multi_ack that permits client to better +understand the server's in-memory state. See pack-protocol.txt, +section "Packfile Negotiation" for more information. + +no-done +------- +This capability should only be used with the smart HTTP protocol. If +multi_ack_detailed and no-done are both present, then the sender is +free to immediately send a pack following its first "ACK obj-id ready" +message. + +Without no-done in the smart HTTP protocol, the server session would +end and the client has to make another trip to send "done" before +the server can send the pack. no-done removes the last round and +thus slightly reduces latency. + thin-pack --------- -This capability means that the server can send a 'thin' pack, a pack -which does not contain base objects; if those base objects are available -on client side. Client requests 'thin-pack' capability when it -understands how to "thicken" it by adding required delta bases making -it self-contained. - -Client MUST NOT request 'thin-pack' capability if it cannot turn a thin -pack into a self-contained pack. +A thin pack is one with deltas which reference base objects not +contained within the pack (but are known to exist at the receiving +end). This can reduce the network traffic significantly, but it +requires the receiving end to know how to "thicken" these packs by +adding the missing bases to the pack. + +The upload-pack server advertises 'thin-pack' when it can generate +and send a thin pack. A client requests the 'thin-pack' capability +when it understands how to "thicken" it, notifying the server that +it can receive such a pack. A client MUST NOT request the +'thin-pack' capability if it cannot turn a thin pack into a +self-contained pack. + +Receive-pack, on the other hand, is assumed by default to be able to +handle thin packs, but can ask the client not to use the feature by +advertising the 'no-thin' capability. A client MUST NOT send a thin +pack if the server advertises the 'no-thin' capability. + +The reasons for this asymmetry are historical. The receive-pack +program did not exist until after the invention of thin packs, so +historically the reference implementation of receive-pack always +understood thin packs. Adding 'no-thin' later allowed receive-pack +to disable the feature in a backwards-compatible manner. side-band, side-band-64k diff --git a/Documentation/technical/protocol-common.txt b/Documentation/technical/protocol-common.txt index fb7ff084f..889985f70 100644 --- a/Documentation/technical/protocol-common.txt +++ b/Documentation/technical/protocol-common.txt @@ -39,7 +39,7 @@ More specifically, they: caret `^`, colon `:`, question-mark `?`, asterisk `*`, or open bracket `[` anywhere. -. They cannot end with a slash `/` nor a dot `.`. +. They cannot end with a slash `/` or a dot `.`. . They cannot end with the sequence `.lock`. diff --git a/Documentation/user-manual.txt b/Documentation/user-manual.txt index cbb01a1ea..022e74e61 100644 --- a/Documentation/user-manual.txt +++ b/Documentation/user-manual.txt @@ -1,5 +1,5 @@ Git User Manual -_______________ +=============== Git is a fast distributed revision control system. @@ -3795,7 +3795,7 @@ like so: $ git update-index filename ------------------------------------------------- -but to avoid common mistakes with filename globbing etc, the command +but to avoid common mistakes with filename globbing etc., the command will not normally add totally new entries or remove old entries, i.e. it will normally just update existing cache entries. @@ -4074,7 +4074,7 @@ the `HEAD` tree, and stage 3 to the `$target` tree. Earlier we said that trivial merges are done inside `git read-tree -m`. For example, if the file did not change -from `$orig` to `HEAD` nor `$target`, or if the file changed +from `$orig` to `HEAD` or `$target`, or if the file changed from `$orig` to `HEAD` and `$orig` to `$target` the same way, obviously the final outcome is what is in `HEAD`. What the above example shows is that file `hello.c` was changed from |