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* Log ref changes made by git-merge and git-pull.Shawn Pearce2006-07-11
| | | | | | | | | | | | | | | When git-merge updates HEAD as a result of a merge record what happened during the merge into the reflog associated with HEAD (if any). The log reports who caused the update (git-merge or git-pull, by invoking git-merge), what the remote ref names were and the type of merge process used. The merge information can be useful when reviewing a reflog for a branch such as `master` where fast forward and trivial in index merges might be common as the user tracks an upstream. Signed-off-by: Shawn O. Pearce <spearce@spearce.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
* Fix expr usage for FreeBSDDennis Stosberg2006-06-27
| | | | | | | | Some implementations of "expr" (e.g. FreeBSD's) fail, if an argument starts with a dash. Signed-off-by: Dennis Stosberg <dennis@stosberg.net> Signed-off-by: Junio C Hamano <junkio@cox.net>
* git-merge --squashJunio C Hamano2006-06-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some people tend to do many little commits on a topic branch, recording all the trials and errors, and when the topic is reasonably cooked well, would want to record the net effect of the series as one commit on top of the mainline, removing the cruft from the history. The topic is then abandoned or forked off again from that point at the mainline. The barebone porcelainish that comes with core git tools does not officially support such operation, but you can fake it by using "git pull --no-merge" when such a topic branch is not a strict superset of the mainline, like this: git checkout mainline git pull --no-commit . that-topic-branch : fix conflicts if any rm -f .git/MERGE_HEAD git commit -a -m 'consolidated commit log message' git branch -f that-topic-branch ;# now fully merged This however does not work when the topic branch is a fast forward of the mainline, because normal "git pull" will never create a merge commit in such a case, and there is nothing special --no-commit could do to begin with. This patch introduces a new option, --squash, to support such a workflow officially in both fast-forward case and true merge case. The user-level operation would be the same in both cases: git checkout mainline git pull --squash . that-topic-branch : fix conflicts if any -- naturally, there would be : no conflict if fast forward. git commit -a -m 'consolidated commit log message' git branch -f that-topic-branch ;# now fully merged When the current branch is already up-to-date with respect to the other branch, there truly is nothing to do, so the new option does not have any effect. This was brought up in #git IRC channel recently. Signed-off-by: Junio C Hamano <junkio@cox.net>
* git-merge: Don't use -p when outputting summaryTimo Hirvonen2006-06-23
| | | | | | | -p is not needed and we only want diffstat and summary. Signed-off-by: Timo Hirvonen <tihirvon@gmail.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
* Convert some "apply --summary" users to "diff --summary".Sean2006-05-14
| | | | | Signed-off-by: Sean Estabrooks <seanlkml@sympatico.ca> Signed-off-by: Junio C Hamano <junkio@cox.net>
* git-merge: a bit more readable user guidance.Junio C Hamano2006-04-19
| | | | | | | | We said "fix up by hand" after failed automerge, which was a big "Huh? Now what?". Be a bit more explicit without being too verbose. Suggested by Carl Worth. Signed-off-by: Junio C Hamano <junkio@cox.net>
* git-merge knows some strategies want to skip trivial mergesJunio C Hamano2006-03-20
| | | | | | | | | | Most notably "ours". Also this makes sure we do not record duplicated parents on the parent list of the resulting commit. This is based on Mark Wooding's work, but does not change the UI nor introduce new flags. Signed-off-by: Junio C Hamano <junkio@cox.net>
* allow double click on current HEAD id after git-pullOlaf Hering2006-03-09
| | | | | | | | | Double click on to current HEAD commit id is not possible, the dot has to go. [jc: by popular requests.] Signed-off-by: Junio C Hamano <junkio@cox.net>
* Merge fixes early for next maint series.Junio C Hamano2006-02-23
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| * checkout - eye candy.Junio C Hamano2006-02-22
| | | | | | | | | | | | | | | | This implements "eye candy" similar to the pack-object/unpack-object to entertain users while a large tree is being checked out after a clone or a pull. Signed-off-by: Junio C Hamano <junkio@cox.net>
| * Keep Porcelainish from failing by broken ident after making changes.Junio C Hamano2006-02-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "empty ident not allowed" error makes commit-tree fail, so we are already safer in that we would not end up with commit objects that have bogus names on the author or committer fields. However, before commit-tree is called there are already changes made to the index file and the working tree. The operation can be resumed after fixing the environment problem, but when this triggers to a newcomer with unusable gecos, the first question becomes "what did I lose and how would I recover". This patch modifies some Porcelainish commands to verify GIT_COMMITTER_IDENT as soon as we know we are going to make some commits before doing much damage to prevent confusion. Signed-off-by: Junio C Hamano <junkio@cox.net>
* | Merge part of jc/portable branchJunio C Hamano2006-02-21
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| * | Optionally work without pythonJohannes Schindelin2006-02-18
| |/ | | | | | | | | | | | | | | In some setups (notably server setups) you do not need that dependency. Gracefully handle the absence of python when NO_PYTHON is defined. Signed-off-by: Johannes E. Schindelin <Johannes.Schindelin@gmx.de> Signed-off-by: Junio C Hamano <junkio@cox.net>
* | Keep Porcelainish from failing by broken ident after making changes.Junio C Hamano2006-02-18
|/ | | | | | | | | | | | | | | | | "empty ident not allowed" error makes commit-tree fail, so we are already safer in that we would not end up with commit objects that have bogus names on the author or committer fields. However, before commit-tree is called there are already changes made to the index file and the working tree. The operation can be resumed after fixing the environment problem, but when this triggers to a newcomer with unusable gecos, the first question becomes "what did I lose and how would I recover". This patch modifies some Porcelainish commands to verify GIT_COMMITTER_IDENT as soon as we know we are going to make some commits before doing much damage to prevent confusion. Signed-off-by: Junio C Hamano <junkio@cox.net>
* Only call git-rerere if $GIT_DIR/rr-cache exists.Junio C Hamano2006-02-11
| | | | | | | Johannes noticed that git-rerere depends on Digest.pm, and if one does not use the command, one can live without it. Signed-off-by: Junio C Hamano <junkio@cox.net>
* git-rerere: reuse recorded resolve.Junio C Hamano2006-02-06
| | | | | | | | | | | | | | | In a workflow that employs relatively long lived topic branches, the developer sometimes needs to resolve the same conflict over and over again until the topic branches are done (either merged to the "release" branch, or sent out and accepted upstream). This commit introduces a new command, "git rerere", to help this process by recording the conflicted automerge results and corresponding hand-resolve results on the initial manual merge, and later by noticing the same conflicted automerge and applying the previously recorded hand resolution using three-way merge. Signed-off-by: Junio C Hamano <junkio@cox.net>
* git-merge: Properly quote $merge_msg variable.Junio C Hamano2006-02-03
| | | | | | Otherwise it would go though shell expansion... Signed-off-by: Junio C Hamano <junkio@cox.net>
* merge: seed the commit message with list of conflicted files.Junio C Hamano2006-01-27
| | | | | | | | | | | The files with conflicts need to be hand resolved, and it is a good discipline for the committer to explain which branch was taken and why. Pre-fill the merge message template with the list of conflicted paths to encourage it. This is from Linus. Signed-off-by: Junio C Hamano <junkio@cox.net>
* merge --no-commit: tweak messageJunio C Hamano2005-12-23
| | | | | | | | We did not distinguish the case the user asked not to make a commit with --no-commit flag and the automerge failed. Tell these cases apart and phrase dying message differently. Signed-off-by: Junio C Hamano <junkio@cox.net>
* Trivial usage string clean-upfreku045@student.liu.se2005-12-14
| | | | | Signed-off-by: Fredrik Kuivinen <freku045@student.liu.se> Signed-off-by: Junio C Hamano <junkio@cox.net>
* [PATCH] allow merging any committishJunio C Hamano2005-12-13
| | | | | | | | | | Although "git-merge" is advertised as the end-user level command (instead of being a "git-pull" backend), it was not prepared to take tag objects that point at commits and barfed when fed one. Sanitize the input while we validate them, for which we already have a loop. Signed-off-by: Junio C Hamano <junkio@cox.net>
* git-merge: Exit with code 2 if no strategy was able to handle the merge.Fredrik Kuivinen2005-12-03
| | | | | | | | This way it is possible to test in scripts if the merge was non-clean or if the strategy had other problems with the merge. Signed-off-by: Fredrik Kuivinen <freku045@student.liu.se> Signed-off-by: Junio C Hamano <junkio@cox.net>
* git-sh-setup: die if outside git repository.Junio C Hamano2005-11-25
| | | | | | | | Now all the users of this script detect its exit status and die, complaining that it is outside git repository. So move the code that dies from all callers to git-sh-setup script. Signed-off-by: Junio C Hamano <junkio@cox.net>
* git-merge: make recursive the default strategyJunio C Hamano2005-11-23
| | | | | | | | | | | git-pull invoked merge with recursive as the default strategy for some time now; match it in the git-merge itself. Also avoid listing more than one strategy on default because we have only one strategy that can resolve an octopus and we are already counting heads here. This reduces the need to stash away local modifications. Signed-off-by: Junio C Hamano <junkio@cox.net>
* Use 'merge-base --all' where applicable.Junio C Hamano2005-11-09
| | | | | | | It may get extra merge base on truly pathological commit histories, but is a lot easier to understand, explain, and prove correctness. Signed-off-by: Junio C Hamano <junkio@cox.net>
* Add 'ours' merge strategy.Junio C Hamano2005-11-03
| | | | | | | | | | | | | This adds the coolest merge strategy ever, "ours". It can take arbitrary number of foreign heads and merge them into the current branch, with the resulting tree always taken from our branch head, hence its name. What this means is that you can declare that the current branch supersedes the development histories of other branches using this merge strategy. Signed-off-by: Junio C Hamano <junkio@cox.net>
* Add --no-commit to git-merge/git-pull.Junio C Hamano2005-11-03
| | | | | | | | | With --no-commit flag, git-pull will perform the merge but pretends as if the merge needed a hand resolve even if automerge cleanly resolves, to give the user a chance to add further changes and edit the commit message. Signed-off-by: Junio C Hamano <junkio@cox.net>
* Documentation changes to recursive option for git-diff-treeChris Shoemaker2005-10-28
| | | | | | | | | | Update docs and usages regarding '-r' recursive option for git-diff-tree. Remove '-r' from common diff options, mention it only for git-diff-tree. Remove one extraneous use of '-r' with git-diff-files in get-merge.sh. Sync the synopsis and usage string for git-diff-tree. Signed-off-by: Chris Shoemaker <c.shoemaker at cox.net> Signed-off-by: Junio C Hamano <junkio@cox.net>
* Allow git-merge not to commit.Junio C Hamano2005-10-22
| | | | | | | | | | | | | | Martin Langhoff wants to use git-merge from outside git-pull and wants to do further processing; for this, he wants git-merge no to commit even when it cleanly merges. I think other script writers would want something like that as well, so here it is. Instead of the "merge commit message" parameter (which usually is made for you by "git-pull" which calls this command), you pass an empty string to it. Then it will not update your HEAD -- you can do whatever you want with the resulting index file, which contains the merge results. Signed-off-by: Junio C Hamano <junkio@cox.net>
* [PATCH] Enable and fix support for base less merges.Fredrik Kuivinen2005-10-03
| | | | | | | | | | | | | | | | | | | | Let the merge strategies handle the base less case if they are able to do it. It also fixes git-resolve.sh to die if no common ancestors exists, instead of doing the wrong thing. Furthermore, it contains a small independent fix for git-merge.sh and a fix for a base less code path in gitMergeCommon.py. With this it's possible to use git merge -s recursive 'merge message' A B to do a base less merge of A and B. [jc: Thanks Fredrik for fixing the brown-paper-bag in git-merge. I fixed a small typo in git-merge-resolve fix; 'test' equality check is spelled with single equal sign -- C-style double equal sign is bashism.] Signed-off-by: Fredrik Kuivinen <freku045@student.liu.se> Signed-off-by: Junio C Hamano <junkio@cox.net>
* Handle really trivial case inside git-merge.Junio C Hamano2005-10-02
| | | | | | | | | | | | | Using Linus' --trivial option, this handles really trivial case inside git-merge itself, without using any strategy modules. A 'really trivial case' is: - we are merging one branch into the current branch; - there is only one merge base between the branches; - there is no file-level merge required. Signed-off-by: Junio C Hamano <junkio@cox.net>
* Use git-update-ref in scripts.Junio C Hamano2005-09-28
| | | | | | | | | This uses the git-update-ref command in scripts for safer updates. Also places where we used to read HEAD ref by using "cat" were fixed to use git-rev-parse. This will matter when we start using symbolic references. Signed-off-by: Junio C Hamano <junkio@cox.net>
* Fastpath the normal case by not checking that index matches HEAD.Junio C Hamano2005-09-28
| | | | | | | The merge strategy would check this itself and typically does it by using git-read-tree -m -u 3-way merge. Signed-off-by: Junio C Hamano <junkio@cox.net>
* Give default merge message after failed automerge.Junio C Hamano2005-09-26
| | | | Signed-off-by: Junio C Hamano <junkio@cox.net>
* Fix overzealous cleanliness check in git-mergeJunio C Hamano2005-09-26
| | | | | | | | | | | | | | | | | | | | | | Being able to try multiple strategies and automatically picking one that seems to give less conflicting result may or may not much sense in practice. At least that should not force normal use case to additionally require the working tree to be fully clean. As Linus shouted, local changes do not matter unless they interfere with the merge. This commit changes git-merge not to require a clean working tree. Only when we will iterate through more than one merge strategies, local changes are stashed away before trying the first merge, and restored before second and later merges are attempted. The index file must be in sync with HEAD in any case -- otherwise the merge result would contain changes since HEAD that was done locally and registered in the index. This check is already enforced by three-way read-tree existing merge strategies use, but is done here as a safeguard as well. Signed-off-by: Junio C Hamano <junkio@cox.net>
* [PATCH] More descriptive messages for conflict cases in mergesFredrik Kuivinen2005-09-25
| | | | | | | | | The merge strategies can give more descriptive error messages for conflict cases if they are given the actual branch names instead of the SHA1s. Signed-off-by: Fredrik Kuivinen <freku045@student.liu.se> Signed-off-by: Junio C Hamano <junkio@cox.net>
* [PATCH] Rename the 'fredrik' merge strategy to 'recursive'.Fredrik Kuivinen2005-09-13
| | | | | | | | Otherwise we would regret when Fredrik comes up with another merge algorithm with different pros-and-cons with the current one. Signed-off-by: Fredrik Kuivinen <freku045@student.liu.se> Signed-off-by: Junio C Hamano <junkio@cox.net>
* Fix off-by-one error in git-mergeJunio C Hamano2005-09-12
| | | | | | | 'git-merge -s' without a strategy name does not fail and does not give usage as it should. Signed-off-by: Junio C Hamano <junkio@cox.net>
* Add a new merge strategy by Fredrik Kuivinen.Junio C Hamano2005-09-10
| | | | | | | | | | | I really wanted to try this out, instead of asking for an adjustment to the 'git merge' driver and waiting. For now the new strategy is called 'fredrik' and not in the list of default strategies to be tried. The script wants Python 2.4 so this commit also adjusts Debian and RPM build procecure files. Signed-off-by: Junio C Hamano <junkio@cox.net>
* Use Daniel's read-tree in the merge strategy 'resolve'.Junio C Hamano2005-09-10
| | | | | | And rename the one Linus kept calling stupid, 'stupid'. Signed-off-by: Junio C Hamano <junkio@cox.net>
* Multi-backend merge driver.Junio C Hamano2005-09-10
The new command 'git merge' takes the current head and one or more remote heads, with the commit log message for the automated case. If the heads being merged are simple fast-forwards, it acts the same way as the current 'git resolve'. Otherwise, it tries different merge strategies and takes the result from the one that succeeded auto-merging, if there is any. If no merge strategy succeeds auto-merging, their results are evaluated for number of paths needed for hand resolving, and the one with the least number of such paths is left in the working tree. The user is asked to resolve them by hand and make a commit manually. The calling convention from the 'git merge' driver to merge strategy programs is very simple: - A strategy program is to be called 'git-merge-<strategy>'. - They take input of this form: <common1> <common2> ... '--' <head> <remote1> <remote2>... That is, one or more the common ancestors, double dash, the current head, and one or more remote heads being merged into the current branch. - Before a strategy program is called, the working tree is matched to the current <head>. - The strategy program exits with status code 0 when it successfully auto-merges the given heads. It should do update-cache for all the merged paths when it does so -- the index file will be used to record the merge result as a commit by the driver. - The strategy program exits with status code 1 when it leaves conflicts behind. It should do update-cache for all the merged paths that it successfully auto-merged, and leave the cache entry in the index file as the same as <head> for paths it could not auto-merge, and leave its best-effort result with conflict markers in the working tree when it does so. - The strategy program exists with status code other than 0 or 1 if it does not handle the given merge at all. As examples, this commit comes with merge strategies based on 'git resolve' and 'git octopus'. Signed-off-by: Junio C Hamano <junkio@cox.net>