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Many commands that read files that are expected to contain text
that is generated (or can be edited) by the end user to control
their behaviour (e.g. "git grep -f <filename>") have been updated
to be more tolerant to lines that are terminated with CRLF (they
used to treat such a line to contain payload that ends with CR,
which is usually not what the users expect).
* jc/peace-with-crlf:
test-sha1-array: read command stream with strbuf_getline()
grep: read -f file with strbuf_getline()
send-pack: read list of refs with strbuf_getline()
column: read lines with strbuf_getline()
cat-file: read batch stream with strbuf_getline()
transport-helper: read helper response with strbuf_getline()
clone/sha1_file: read info/alternates with strbuf_getline()
remote.c: read $GIT_DIR/remotes/* with strbuf_getline()
ident.c: read /etc/mailname with strbuf_getline()
rev-parse: read parseopt spec with strbuf_getline()
revision: read --stdin with strbuf_getline()
hash-object: read --stdin-paths with strbuf_getline()
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List of patterns file could come from a DOS editor.
This is iffy; you may actually be trying to find a line with ^M in
it on a system whose line ending is LF. You can of course work it
around by having a line that has "^M^M^J", let the strbuf_getline()
eat the last "^M^J", leaving just the single "^M" as the pattern.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Multiple lines read here are concatenated on a single line to form a
multi-column output line. We do not want to have a CR at the end,
even if the input file consists of CRLF terminated lines.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It is possible to prepare a text file with a DOS editor and feed it
as a batch command stream to the command.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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$GIT_OBJECT_DIRECTORY/info/alternates is a text file that can be
edited with a DOS editor. We do not want to use the real path with
CR appended at the end.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"rev-parse --parseopt" specification is clearly text and we
should anticipate that we may be fed CRLF lines.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The list of paths could have been written with a DOS editor.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git tag" started listing a tag "foo" as "tags/foo" when a branch
named "foo" exists in the same repository; remove this unnecessary
disambiguation, which is a regression introduced in v2.7.0.
* jk/list-tag-2.7-regression:
tag: do not show ambiguous tag names as "tags/foo"
t6300: use test_atom for some un-modern tests
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Since b7cc53e9 (tag.c: use 'ref-filter' APIs, 2015-07-11),
git-tag has started showing tags with ambiguous names (i.e.,
when both "heads/foo" and "tags/foo" exists) as "tags/foo"
instead of just "foo". This is both:
- pointless; the output of "git tag" includes only
refs/tags, so we know that "foo" means the one in
"refs/tags".
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- ambiguous; in the original output, we know that the line
"foo" means that "refs/tags/foo" exists. In the new
output, it is unclear whether we mean "refs/tags/foo" or
"refs/tags/tags/foo".
The reason this happens is that commit b7cc53e9 switched
git-tag to use ref-filter's "%(refname:short)" output
formatting, which was adapted from for-each-ref. This more
general code does not know that we care only about tags, and
uses shorten_unambiguous_ref to get the short-name. We need
to tell it that we care only about "refs/tags/", and it
should shorten with respect to that value.
In theory, the ref-filter code could figure this out by us
passing FILTER_REFS_TAGS. But there are two complications
there:
1. The handling of refname:short is deep in formatting
code that does not even have our ref_filter struct, let
alone the arguments to the filter_ref struct.
2. In git v2.7.0, we expose the formatting language to the
user. If we follow this path, it will mean that
"%(refname:short)" behaves differently for "tag" versus
"for-each-ref" (including "for-each-ref refs/tags/"),
which can lead to confusion.
Instead, let's add a new modifier to the formatting
language, "strip", to remove a specific set of prefix
components. This fixes "git tag", and lets users invoke the
same behavior from their own custom formats (for "tag" or
"for-each-ref") while leaving ":short" with its same
consistent meaning in all places.
We introduce a test in t7004 for "git tag", which fails
without this patch. We also add a similar test in t3203 for
"git branch", which does not actually fail. But since it is
likely that "branch" will eventually use the same formatting
code, the test helps defend against future regressions.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git shortlog" used to accumulate various pieces of information
regardless of what was asked to be shown in the final output. It
has been optimized by noticing what need not to be collected
(e.g. there is no need to collect the log messages when showing
only the number of changes).
* jk/shortlog:
shortlog: don't warn on empty author
shortlog: optimize out useless string list
shortlog: optimize out useless "<none>" normalization
shortlog: optimize "--summary" mode
shortlog: replace hand-parsing of author with pretty-printer
shortlog: use strbufs to read from stdin
shortlog: match both "Author:" and "author" on stdin
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Git tries to avoid creating a commit with an empty author
name or email. However, commits created by older, less
strict versions of git may still be in the history. There's
not much point in issuing a warning to stderr for an empty
author. The user can't do anything about it now, and we are
better off to simply include it in the shortlog output as an
empty name/email, and let the caller process it however they
see fit.
Older versions of shortlog differentiated between "author
header not present" (which complained) and "author
name/email are blank" (which included the empty ident in the
output). But since switching to format_commit_message, we
complain to stderr about either case (linux.git has a blank
author deep in its history which triggers this).
We could try to restore the older behavior (complaining only
about the missing header), but in retrospect, there's not
much point in differentiating these cases. A missing
author header is bogus, but as for the "blank" case, the
only useful behavior is to add it to the "empty name"
collection.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If we are in "--summary" mode, then we do not care about the
actual list of subject onelines associated with each author.
We care only about the number. So rather than store a
string-list for each author full of "<none>", let's just
keep a count.
This drops my best-of-five for "git shortlog -ns HEAD" on
linux.git from:
real 0m5.194s
user 0m5.028s
sys 0m0.168s
to:
real 0m5.057s
user 0m4.916s
sys 0m0.144s
That's about 2.5%.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If we are in --summary mode, we will always pass <none> to
insert_one_record, which will then do some normalization
(e.g., cutting out "[PATCH]"). There's no point in doing so
if we aren't going to use the result anyway.
This drops my best-of-five for "git shortlog -ns HEAD" on
linux.git from:
real 0m5.257s
user 0m5.104s
sys 0m0.156s
to:
real 0m5.194s
user 0m5.028s
sys 0m0.168s
That's only 1%, but arguably the result is clearer to read,
as we're able to group our variable declarations inside the
conditional block. It also opens up further optimization
possibilities for future patches.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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If the user asked us only to show counts for each author,
rather than the individual summary lines, then there is no
point in us generating the summaries only to throw them
away. With this patch, I measured the following speedup for
"git shortlog -ns HEAD" on linux.git (best-of-five):
[before]
real 0m5.644s
user 0m5.472s
sys 0m0.176s
[after]
real 0m5.257s
user 0m5.104s
sys 0m0.156s
That's only ~7%, but it's so easy to do, there's no good
reason not to. We don't have to touch any downstream code,
since we already fill in the magic string "<none>" to handle
commits without a message.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When gathering the author and oneline subject for each
commit, we hand-parse the commit headers to find the
"author" line, and then continue past to the blank line at
the end of the header.
We can replace this tricky hand-parsing by simply asking the
pretty-printer for the relevant items. This also decouples
the author and oneline parsing, opening up some new
optimizations in further commits.
One reason to avoid the pretty-printer is that it might be
less efficient than hand-parsing. However, I measured no
slowdown at all running "git shortlog -ns HEAD" on
linux.git.
As a bonus, we also fix a memory leak in the (uncommon) case
that the author field is blank.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We currently use fixed-size buffers with fgets(), which
could lead to incorrect results in the unlikely event that a
line had something like "Author:" at exactly its 1024th
character.
But it's easy to convert this to a strbuf, and because we
can reuse the same buffer through the loop, we don't even
pay the extra allocation cost.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The original git-shortlog could read both the normal "git
log" output as well as "git log --format=raw". However, when
it was converted to C by b8ec592 (Build in shortlog,
2006-10-22), the trailing colon became mandatory, and we no
longer matched the raw output.
Given the amount of intervening time without any bug
reports, it's probable that nobody cares. But it's
relatively easy to fix, and the end result is hopefully more
readable than the original.
Note that this no longer matches "author: ", which we did
before, but that has never been a format generated by git.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The preliminary clean-up for jc/peace-with-crlf topic.
* jc/strbuf-getline:
strbuf: give strbuf_getline() to the "most text friendly" variant
checkout-index: there are only two possible line terminations
update-index: there are only two possible line terminations
check-ignore: there are only two possible line terminations
check-attr: there are only two possible line terminations
mktree: there are only two possible line terminations
strbuf: introduce strbuf_getline_{lf,nul}()
strbuf: make strbuf_getline_crlf() global
strbuf: miniscule style fix
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Now there is no direct caller to strbuf_getline(), we can demote it
to file-scope static that is private to strbuf.c and rename it to
strbuf_getdelim(). Rename strbuf_getline_crlf(), which is designed
to be the most "text friendly" variant, and allow it to take over
this simplest name, strbuf_getline(), so we can add more uses of it
without having to type _crlf over and over again in the coming
steps.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The program by default reads LF terminated lines, with an option to
use NUL terminated records. Instead of pretending that there can be
other useful values for line_termination, use a boolean variable,
nul_term_line, to tell if NUL terminated records are used, and
switch between strbuf_getline_{lf,nul} based on it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The program by default reads LF terminated lines, with an option to
use NUL terminated records. Instead of pretending that there can be
other useful values for line_termination, use a boolean variable,
nul_term_line, to tell if NUL terminated records are used, and
switch between strbuf_getline_{lf,nul} based on it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The program by default reads LF terminated lines, with an option to
use NUL terminated records. Instead of pretending that there can be
other useful values for line_termination, use a boolean variable,
nul_term_line, to tell if NUL terminated records are used, and
switch between strbuf_getline_{lf,nul} based on it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The program by default reads LF terminated lines, with an option to
use NUL terminated records. Instead of pretending that there can be
other useful values for line_termination, use a boolean variable,
nul_term_line, to tell if NUL terminated records are used, and
switch between strbuf_getline_{lf,nul} based on it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The program by default reads LF terminated lines, with an option to
use NUL terminated records. Instead of pretending that there can be
other useful values for line_termination, use a boolean variable,
nul_term_line, to tell if NUL terminated records are used, and
switch between strbuf_getline_{lf,nul} based on it.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The strbuf_getline() interface allows a byte other than LF or NUL as
the line terminator, but this is only because I wrote these
codepaths anticipating that there might be a value other than NUL
and LF that could be useful when I introduced line_termination long
time ago. No useful caller that uses other value has emerged.
By now, it is clear that the interface is overly broad without a
good reason. Many codepaths have hardcoded preference to read
either LF terminated or NUL terminated records from their input, and
then call strbuf_getline() with LF or NUL as the third parameter.
This step introduces two thin wrappers around strbuf_getline(),
namely, strbuf_getline_lf() and strbuf_getline_nul(), and
mechanically rewrites these call sites to call either one of
them. The changes contained in this patch are:
* introduction of these two functions in strbuf.[ch]
* mechanical conversion of all callers to strbuf_getline() with
either '\n' or '\0' as the third parameter to instead call the
respective thin wrapper.
After this step, output from "git grep 'strbuf_getline('" would
become a lot smaller. An interim goal of this series is to make
this an empty set, so that we can have strbuf_getline_crlf() take
over the shorter name strbuf_getline().
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Often we read "text" files that are supplied by the end user
(e.g. commit log message that was edited with $GIT_EDITOR upon 'git
commit -e'), and in some environments lines in a text file are
terminated with CRLF. Existing strbuf_getline() knows to read a
single line and then strip the terminating byte from the result, but
it is handy to have a version that is more tailored for a "text"
input that takes both '\n' and '\r\n' as line terminator (aka
<newline> in POSIX lingo) and returns the body of the line after
stripping <newline>.
Recently reimplemented "git am" uses such a function implemented
privately; move it to strbuf.[ch] and make it available for others.
Note that we do not blindly replace calls to strbuf_getline() that
uses LF as the line terminator with calls to strbuf_getline_crlf()
and this is very much deliberate. Some callers may want to treat an
incoming line that ends with CR (and terminated with LF) to have a
payload that includes the final CR, and such a blind replacement
will result in misconversion when done without code audit.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"interpret-trailers" has been taught to optionally update a file in
place, instead of always writing the result to the standard output.
* tk/interpret-trailers-in-place:
interpret-trailers: add option for in-place editing
trailer: allow to write to files other than stdout
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Add a command line option --in-place to support in-place editing akin to
sed -i. This allows to write commands like the following:
git interpret-trailers --trailer "X: Y" a.txt > b.txt && mv b.txt a.txt
in a more concise way:
git interpret-trailers --trailer "X: Y" --in-place a.txt
Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The low-level code that is used to create symbolic references has
been updated to share more code with the code that deals with
normal references.
* jk/symbolic-ref:
lock_ref_sha1_basic: handle REF_NODEREF with invalid refs
lock_ref_sha1_basic: always fill old_oid while holding lock
checkout,clone: check return value of create_symref
create_symref: write reflog while holding lock
create_symref: use existing ref-lock code
create_symref: modernize variable names
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It's unlikely that we would fail to create or update a
symbolic ref (especially HEAD), but if we do, we should
notice and complain. Note that there's no need to give more
details in our error message; create_symref will already
have done so.
While we're here, let's also fix a minor memory leak in
clone.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git format-patch" learned to notice format.outputDirectory
configuration variable. This allows "-o <dir>" option to be
omitted on the command line if you always use the same directory in
your workflow.
* ak/format-patch-odir-config:
format-patch: introduce format.outputDirectory configuration
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We can pass -o/--output-directory to the format-patch command to store
patches in some place other than the working directory. This patch
introduces format.outputDirectory configuration option for same
purpose.
The case of usage of this configuration option can be convenience
to not pass every time -o/--output-directory if an user has pattern
to store all patches in the /patches directory for example.
The format.outputDirectory has lower priority than command line
option, so if user will set format.outputDirectory and pass the
command line option, a result will be stored in a directory that
passed to command line option.
Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com>
Signed-off-by: Stephen P. Smith <ischis2@cox.net>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Many codepaths that run "gc --auto" before exiting kept packfiles
mapped and left the file descriptors to them open, which was not
friendly to systems that cannot remove files that are open. They
now close the packs before doing so.
* js/close-packs-before-gc:
receive-pack: release pack files before garbage-collecting
merge: release pack files before garbage-collecting
am: release pack files before garbage-collecting
fetch: release pack files before garbage-collecting
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Before auto-gc'ing, we need to make sure that the pack files are
released in case they need to be repacked and garbage-collected.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Before auto-gc'ing, we need to make sure that the pack files are
released in case they need to be repacked and garbage-collected.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Before auto-gc'ing, we need to make sure that the pack files are
released in case they need to be repacked and garbage-collected.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Before auto-gc'ing, we need to make sure that the pack files are
released in case they need to be repacked and garbage-collected.
This fixes https://github.com/git-for-windows/git/issues/500
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Reviewed-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git pull --rebase" has been extended to allow invoking
"rebase -i".
* js/pull-rebase-i:
completion: add missing branch.*.rebase values
remote: handle the config setting branch.*.rebase=interactive
pull: allow interactive rebase with --rebase=interactive
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The config variable branch.<branchname>.rebase is not only used by `git
pull`, but also by `git remote` when showing details about a remote.
Therefore, it needs to be taught to accept the newly-introduced
`interactive` value of said variable.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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A couple of years ago, I found the need to collaborate on topic
branches that were rebased all the time, and I really needed to see
what I was rebasing when pulling, so I introduced an
interactively-rebasing pull.
The way builtin pull works, this change also supports the value
'interactive' for the 'branch.<name>.rebase' config variable, which
is a neat thing because users can now configure given branches for
interactively-rebasing pulls without having to type out the complete
`--rebase=interactive` option every time they pull.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git grep" by default does not fall back to its "--no-index"
behaviour outside a directory under Git's control (otherwise the
user may by mistake end up running a huge recursive search); with a
new configuration (set in $HOME/.gitconfig--by definition this
cannot be set in the config file per project), this safety can be
disabled.
* tg/grep-no-index-fallback:
builtin/grep: add grep.fallbackToNoIndex config
t7810: correct --no-index test
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Currently when git grep is used outside of a git repository without the
--no-index option git simply dies. For convenience, add a
grep.fallbackToNoIndex configuration variable. If set to true, git grep
behaves like git grep --no-index if it is run outside of a git
repository. It defaults to false, preserving the current behavior.
Helped-by: Jeff King <peff@peff.net>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Some codepaths used fopen(3) when opening a fixed path in $GIT_DIR
(e.g. COMMIT_EDITMSG) that is meant to be left after the command is
done. This however did not work well if the repository is set to
be shared with core.sharedRepository and the umask of the previous
user is tighter. They have been made to work better by calling
unlink(2) and retrying after fopen(3) fails with EPERM.
* js/fopen-harder:
Handle more file writes correctly in shared repos
commit: allow editing the commit message even in shared repos
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In shared repositories, we have to be careful when writing files whose
permissions do not allow users other than the owner to write them.
In particular, we force the marks file of fast-export and the FETCH_HEAD
when fetching to be rewritten from scratch.
This commit does not touch other calls to fopen() that want to
write files:
- commands that write to working tree files (core.sharedRepository
does not affect permission bits of working tree files),
e.g. .rej file created by "apply --reject", result of applying a
previous conflict resolution by "rerere", "git merge-file".
- git am, when splitting mails (git-am correctly cleans up its directory
after finishing, so there is no need to share those files between users)
- git submodule clone, when writing the .git file, because the file
will not be overwritten
- git_terminal_prompt() in compat/terminal.c, because it is not writing to
a file at all
- git diff --output, because the output file is clearly not intended to be
shared between the users of the current repository
- git fast-import, when writing a crash report, because the reports' file
names are unique due to an embedded process ID
- mailinfo() in mailinfo.c, because the output is clearly not intended to
be shared between the users of the current repository
- check_or_regenerate_marks() in remote-testsvn.c, because this is only
used for Git's internal testing
- git fsck, when writing lost&found blobs (this should probably be
changed, but left as a low-hanging fruit for future contributors).
Note that this patch does not touch callers of write_file() and
write_file_gently(), which would benefit from the same scrutiny as
to usage in shared repositories. Most notable users are branch,
daemon, submodule & worktree, and a worrisome call in transport.c
when updating one ref (which ignores the shared flag).
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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It was pointed out by Yaroslav Halchenko that the file containing the
commit message is writable only by the owner, which means that we have
to rewrite it from scratch in a shared repository.
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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"git symbolic-ref" forgot to report a failure with its exit status.
* jk/symbolic-ref-maint:
t1401: test reflog creation for git-symbolic-ref
symbolic-ref: propagate error code from create_symref()
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A few unportable C construct have been spotted by clang compiler
and have been fixed.
* jk/clang-pedantic:
bswap: add NO_UNALIGNED_LOADS define
avoid shifting signed integers 31 bits
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We sometimes use 32-bit unsigned integers as bit-fields.
It's fine to access the MSB, because it's unsigned. However,
doing so as "1 << 31" is wrong, because the constant "1" is
a signed int, and we shift into the sign bit, causing
undefined behavior.
We can fix this by using "1U" as the constant.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Paths that have been told the index about with "add -N" are not
quite yet in the index, but a few commands behaved as if they
already are in a harmful way.
* nd/ita-cleanup:
grep: make it clear i-t-a entries are ignored
add and use a convenience macro ce_intent_to_add()
blame: remove obsolete comment
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