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240 lines
6.6 KiB
240 lines
6.6 KiB
git-rebase(1) |
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============= |
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NAME |
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---- |
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git-rebase - Forward-port local commits to the updated upstream head |
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SYNOPSIS |
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-------- |
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[verse] |
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'git-rebase' [-v] [--merge] [-C<n>] [--onto <newbase>] <upstream> [<branch>] |
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'git-rebase' --continue | --skip | --abort |
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DESCRIPTION |
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----------- |
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If <branch> is specified, git-rebase will perform an automatic |
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`git checkout <branch>` before doing anything else. Otherwise |
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it remains on the current branch. |
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All changes made by commits in the current branch but that are not |
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in <upstream> are saved to a temporary area. This is the same set |
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of commits that would be shown by `git log <upstream>..HEAD`. |
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The current branch is reset to <upstream>, or <newbase> if the |
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--onto option was supplied. This has the exact same effect as |
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`git reset --hard <upstream>` (or <newbase>). |
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The commits that were previously saved into the temporary area are |
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then reapplied to the current branch, one by one, in order. |
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It is possible that a merge failure will prevent this process from being |
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completely automatic. You will have to resolve any such merge failure |
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and run `git rebase --continue`. Another option is to bypass the commit |
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that caused the merge failure with `git rebase --skip`. To restore the |
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original <branch> and remove the .dotest working files, use the command |
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`git rebase --abort` instead. |
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Assume the following history exists and the current branch is "topic": |
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------------ |
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A---B---C topic |
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/ |
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D---E---F---G master |
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------------ |
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From this point, the result of either of the following commands: |
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git-rebase master |
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git-rebase master topic |
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would be: |
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------------ |
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A'--B'--C' topic |
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/ |
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D---E---F---G master |
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------------ |
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The latter form is just a short-hand of `git checkout topic` |
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followed by `git rebase master`. |
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Here is how you would transplant a topic branch based on one |
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branch to another, to pretend that you forked the topic branch |
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from the latter branch, using `rebase --onto`. |
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First let's assume your 'topic' is based on branch 'next'. |
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For example feature developed in 'topic' depends on some |
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functionality which is found in 'next'. |
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------------ |
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o---o---o---o---o master |
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\ |
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o---o---o---o---o next |
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\ |
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o---o---o topic |
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------------ |
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We would want to make 'topic' forked from branch 'master', |
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for example because the functionality 'topic' branch depend on |
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got merged into more stable 'master' branch, like this: |
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------------ |
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o---o---o---o---o master |
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| o'--o'--o' topic |
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\ |
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o---o---o---o---o next |
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------------ |
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We can get this using the following command: |
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git-rebase --onto master next topic |
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Another example of --onto option is to rebase part of a |
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branch. If we have the following situation: |
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------------ |
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H---I---J topicB |
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/ |
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E---F---G topicA |
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/ |
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A---B---C---D master |
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------------ |
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then the command |
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git-rebase --onto master topicA topicB |
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would result in: |
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------------ |
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H'--I'--J' topicB |
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/ |
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| E---F---G topicA |
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|/ |
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A---B---C---D master |
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------------ |
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This is useful when topicB does not depend on topicA. |
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A range of commits could also be removed with rebase. If we have |
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the following situation: |
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------------ |
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E---F---G---H---I---J topicA |
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------------ |
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then the command |
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git-rebase --onto topicA~5 topicA~2 topicA |
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would result in the removal of commits F and G: |
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------------ |
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E---H'---I'---J' topicA |
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------------ |
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This is useful if F and G were flawed in some way, or should not be |
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part of topicA. Note that the argument to --onto and the <upstream> |
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parameter can be any valid commit-ish. |
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In case of conflict, git-rebase will stop at the first problematic commit |
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and leave conflict markers in the tree. You can use git diff to locate |
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the markers (<<<<<<) and make edits to resolve the conflict. For each |
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file you edit, you need to tell git that the conflict has been resolved, |
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typically this would be done with |
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git add <filename> |
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After resolving the conflict manually and updating the index with the |
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desired resolution, you can continue the rebasing process with |
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git rebase --continue |
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Alternatively, you can undo the git-rebase with |
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git rebase --abort |
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OPTIONS |
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------- |
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<newbase>:: |
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Starting point at which to create the new commits. If the |
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--onto option is not specified, the starting point is |
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<upstream>. May be any valid commit, and not just an |
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existing branch name. |
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<upstream>:: |
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Upstream branch to compare against. May be any valid commit, |
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not just an existing branch name. |
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<branch>:: |
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Working branch; defaults to HEAD. |
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--continue:: |
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Restart the rebasing process after having resolved a merge conflict. |
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--abort:: |
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Restore the original branch and abort the rebase operation. |
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--skip:: |
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Restart the rebasing process by skipping the current patch. |
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--merge:: |
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Use merging strategies to rebase. When the recursive (default) merge |
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strategy is used, this allows rebase to be aware of renames on the |
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upstream side. |
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-s <strategy>, \--strategy=<strategy>:: |
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Use the given merge strategy; can be supplied more than |
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once to specify them in the order they should be tried. |
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If there is no `-s` option, a built-in list of strategies |
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is used instead (`git-merge-recursive` when merging a single |
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head, `git-merge-octopus` otherwise). This implies --merge. |
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-v, \--verbose:: |
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Display a diffstat of what changed upstream since the last rebase. |
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-C<n>:: |
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Ensure at least <n> lines of surrounding context match before |
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and after each change. When fewer lines of surrounding |
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context exist they all must match. By default no context is |
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ever ignored. |
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include::merge-strategies.txt[] |
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NOTES |
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----- |
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When you rebase a branch, you are changing its history in a way that |
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will cause problems for anyone who already has a copy of the branch |
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in their repository and tries to pull updates from you. You should |
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understand the implications of using 'git rebase' on a repository that |
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you share. |
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When the git rebase command is run, it will first execute a "pre-rebase" |
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hook if one exists. You can use this hook to do sanity checks and |
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reject the rebase if it isn't appropriate. Please see the template |
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pre-rebase hook script for an example. |
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You must be in the top directory of your project to start (or continue) |
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a rebase. Upon completion, <branch> will be the current branch. |
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Author |
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------ |
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Written by Junio C Hamano <junkio@cox.net> |
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Documentation |
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-------------- |
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Documentation by Junio C Hamano and the git-list <git@vger.kernel.org>. |
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GIT |
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--- |
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Part of the gitlink:git[7] suite |
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