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Diffstat (limited to 'Documentation/git-cherry-pick.txt')
| -rw-r--r-- | Documentation/git-cherry-pick.txt | 134 |
1 files changed, 115 insertions, 19 deletions
diff --git a/Documentation/git-cherry-pick.txt b/Documentation/git-cherry-pick.txt index 3c96fa8c86..6154e57238 100644 --- a/Documentation/git-cherry-pick.txt +++ b/Documentation/git-cherry-pick.txt @@ -7,7 +7,12 @@ git-cherry-pick - Apply the changes introduced by some existing commits SYNOPSIS -------- -'git cherry-pick' [--edit] [-n] [-m parent-number] [-s] [-x] [--ff] <commit>... +[verse] +'git cherry-pick' [--edit] [-n] [-m parent-number] [-s] [-x] [--ff] + [-S[<keyid>]] <commit>... +'git cherry-pick' --continue +'git cherry-pick' --quit +'git cherry-pick' --abort DESCRIPTION ----------- @@ -16,6 +21,25 @@ 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>...:: @@ -24,7 +48,9 @@ OPTIONS 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]. + 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:: @@ -32,9 +58,10 @@ 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 @@ -73,39 +100,94 @@ effect to your index in a row. -s:: --signoff:: Add Signed-off-by line at the end of the commit message. + See the signoff option in linkgit:git-commit[1] for more information. + +-S[<keyid>]:: +--gpg-sign[=<keyid>]:: + GPG-sign commits. The `keyid` argument is optional and + defaults to the committer identity; if specified, it must be + stuck to the option without a space. --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`. + +--allow-empty-message:: + By default, cherry-picking a commit with an empty message will fail. + This option overrides that behaviour, allowing commits with empty + messages to be cherry picked. + +--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 cause `cherry-pick` to stop so the user can + examine the commit. 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:: +`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:: +`git cherry-pick ..master`:: +`git cherry-pick ^HEAD master`:: Apply the changes introduced by all commits that are ancestors of master but not of HEAD to produce new commits. -git cherry-pick master\~4 master~2:: +`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:: +`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:: +`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. @@ -113,20 +195,34 @@ git cherry-pick --ff ..next:: 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:: +`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. -Author ------- -Written by Junio C Hamano <gitster@pobox.com> - -Documentation --------------- -Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>. +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 -------- |