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Diffstat (limited to 'Documentation/git-cherry-pick.txt')
| -rw-r--r-- | Documentation/git-cherry-pick.txt | 179 |
1 files changed, 157 insertions, 22 deletions
diff --git a/Documentation/git-cherry-pick.txt b/Documentation/git-cherry-pick.txt index 78f4714da0..0e170a51ca 100644 --- a/Documentation/git-cherry-pick.txt +++ b/Documentation/git-cherry-pick.txt @@ -3,24 +3,53 @@ git-cherry-pick(1) NAME ---- -git-cherry-pick - Apply the change introduced by an existing commit +git-cherry-pick - Apply the changes introduced by some existing commits SYNOPSIS -------- -'git cherry-pick' [--edit] [-n] [-m parent-number] [-s] [-x] <commit> +[verse] +'git cherry-pick' [--edit] [-n] [-m parent-number] [-s] [-x] [--ff] <commit>... +'git cherry-pick' --continue +'git cherry-pick' --quit +'git cherry-pick' --abort DESCRIPTION ----------- -Given one existing commit, apply the change the patch introduces, and record a -new commit that records it. This requires your working tree to be clean (no -modifications from the HEAD commit). + +Given one or more existing commits, apply the change each one +introduces, recording a new commit for each. This requires your +working tree to be clean (no modifications from the HEAD commit). + +When it is not obvious how to apply a change, the following +happens: + +1. The current branch and `HEAD` pointer stay at the last commit + successfully made. +2. The `CHERRY_PICK_HEAD` ref is set to point at the commit that + introduced the change that is difficult to apply. +3. Paths in which the change applied cleanly are updated both + in the index file and in your working tree. +4. For conflicting paths, the index file records up to three + versions, as described in the "TRUE MERGE" section of + linkgit:git-merge[1]. The working tree files will include + a description of the conflict bracketed by the usual + conflict markers `<<<<<<<` and `>>>>>>>`. +5. No other modifications are made. + +See linkgit:git-merge[1] for some hints on resolving such +conflicts. OPTIONS ------- -<commit>:: - Commit to cherry-pick. - For a more complete list of ways to spell commits, see the - "SPECIFYING REVISIONS" section in linkgit:git-rev-parse[1]. +<commit>...:: + Commits to cherry-pick. + For a more complete list of ways to spell commits, see + linkgit:gitrevisions[7]. + Sets of commits can be passed but no traversal is done by + default, as if the '--no-walk' option was specified, see + linkgit:git-rev-list[1]. Note that specifying a range will + feed all <commit>... arguments to a single revision walk + (see a later example that uses 'maint master..next'). -e:: --edit:: @@ -28,9 +57,10 @@ OPTIONS message prior to committing. -x:: - When recording the commit, append to the original commit - message a note that indicates which commit this change - was cherry-picked from. Append the note only for cherry + When recording the commit, append a line that says + "(cherry picked from commit ...)" to the original commit + message in order to indicate which commit this change was + cherry-picked from. This is done only for cherry picks without conflicts. Do not use this option if you are cherry-picking from your private branch because the information is useless to the recipient. If on the @@ -55,10 +85,10 @@ OPTIONS -n:: --no-commit:: - Usually the command automatically creates a commit. - This flag applies the change necessary to cherry-pick - the named commit to your working tree and the index, - but does not make the commit. In addition, when this + Usually the command automatically creates a sequence of commits. + This flag applies the changes necessary to cherry-pick + each named commit to your working tree and the index, + without making any commit. In addition, when this option is used, your index does not have to match the HEAD commit. The cherry-pick is done against the beginning state of your index. @@ -70,14 +100,119 @@ effect to your index in a row. --signoff:: Add Signed-off-by line at the end of the commit message. +--ff:: + If the current HEAD is the same as the parent of the + cherry-pick'ed commit, then a fast forward to this commit will + be performed. + +--allow-empty:: + By default, cherry-picking an empty commit will fail, + indicating that an explicit invocation of `git commit + --allow-empty` is required. This option overrides that + behavior, allowing empty commits to be preserved automatically + in a cherry-pick. Note that when "--ff" is in effect, empty + commits that meet the "fast-forward" requirement will be kept + even without this option. Note also, that use of this option only + keeps commits that were initially empty (i.e. the commit recorded the + same tree as its parent). Commits which are made empty due to a + previous commit are dropped. To force the inclusion of those commits + use `--keep-redundant-commits`. + +--keep-redundant-commits:: + If a commit being cherry picked duplicates a commit already in the + current history, it will become empty. By default these + redundant commits are ignored. This option overrides that behavior and + creates an empty commit object. Implies `--allow-empty`. + +--strategy=<strategy>:: + Use the given merge strategy. Should only be used once. + See the MERGE STRATEGIES section in linkgit:git-merge[1] + for details. + +-X<option>:: +--strategy-option=<option>:: + Pass the merge strategy-specific option through to the + merge strategy. See linkgit:git-merge[1] for details. + +SEQUENCER SUBCOMMANDS +--------------------- +include::sequencer.txt[] + +EXAMPLES +-------- +`git cherry-pick master`:: + + Apply the change introduced by the commit at the tip of the + master branch and create a new commit with this change. + +`git cherry-pick ..master`:: +`git cherry-pick ^HEAD master`:: -Author ------- -Written by Junio C Hamano <gitster@pobox.com> + Apply the changes introduced by all commits that are ancestors + of master but not of HEAD to produce new commits. -Documentation --------------- -Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>. +`git cherry-pick maint next ^master`:: +`git cherry-pick maint master..next`:: + + Apply the changes introduced by all commits that are + ancestors of maint or next, but not master or any of its + ancestors. Note that the latter does not mean `maint` and + everything between `master` and `next`; specifically, + `maint` will not be used if it is included in `master`. + +`git cherry-pick master~4 master~2`:: + + Apply the changes introduced by the fifth and third last + commits pointed to by master and create 2 new commits with + these changes. + +`git cherry-pick -n master~1 next`:: + + Apply to the working tree and the index the changes introduced + by the second last commit pointed to by master and by the last + commit pointed to by next, but do not create any commit with + these changes. + +`git cherry-pick --ff ..next`:: + + If history is linear and HEAD is an ancestor of next, update + the working tree and advance the HEAD pointer to match next. + Otherwise, apply the changes introduced by those commits that + are in next but not HEAD to the current branch, creating a new + commit for each new change. + +`git rev-list --reverse master -- README | git cherry-pick -n --stdin`:: + + Apply the changes introduced by all commits on the master + branch that touched README to the working tree and index, + so the result can be inspected and made into a single new + commit if suitable. + +The following sequence attempts to backport a patch, bails out because +the code the patch applies to has changed too much, and then tries +again, this time exercising more care about matching up context lines. + +------------ +$ git cherry-pick topic^ <1> +$ git diff <2> +$ git reset --merge ORIG_HEAD <3> +$ git cherry-pick -Xpatience topic^ <4> +------------ +<1> apply the change that would be shown by `git show topic^`. +In this example, the patch does not apply cleanly, so +information about the conflict is written to the index and +working tree and no new commit results. +<2> summarize changes to be reconciled +<3> cancel the cherry-pick. In other words, return to the +pre-cherry-pick state, preserving any local modifications you had in +the working tree. +<4> try to apply the change introduced by `topic^` again, +spending extra time to avoid mistakes based on incorrectly matching +context lines. + +SEE ALSO +-------- +linkgit:git-revert[1] GIT --- |