NAME
----
-git-cherry - Find commits not merged upstream
+git-cherry - Find commits yet to be applied to upstream
SYNOPSIS
--------
DESCRIPTION
-----------
-The changeset (or "diff") of each commit between the fork-point and <head>
-is compared against each commit between the fork-point and <upstream>.
-The commits are compared with their 'patch id', obtained from
-the 'git patch-id' program.
+Determine whether there are commits in `<head>..<upstream>` that are
+equivalent to those in the range `<limit>..<head>`.
-Every commit that doesn't exist in the <upstream> branch
-has its id (sha1) reported, prefixed by a symbol. The ones that have
-equivalent change already
-in the <upstream> branch are prefixed with a minus (-) sign, and those
-that only exist in the <head> branch are prefixed with a plus (+) symbol:
-
- __*__*__*__*__> <upstream>
- /
- fork-point
- \__+__+__-__+__+__-__+__> <head>
-
-
-If a <limit> has been given then the commits along the <head> branch up
-to and including <limit> are not reported:
-
- __*__*__*__*__> <upstream>
- /
- fork-point
- \__*__*__<limit>__-__+__> <head>
-
-
-Because 'git cherry' compares the changeset rather than the commit id
-(sha1), you can use 'git cherry' to find out if a commit you made locally
-has been applied <upstream> under a different commit id. For example,
-this will happen if you're feeding patches <upstream> via email rather
-than pushing or pulling commits directly.
+The equivalence test is based on the diff, after removing whitespace
+and line numbers. git-cherry therefore detects when commits have been
+"copied" by means of linkgit:git-cherry-pick[1], linkgit:git-am[1] or
+linkgit:git-rebase[1].
+Outputs the SHA1 of every commit in `<limit>..<head>`, prefixed with
+`-` for commits that have an equivalent in <upstream>, and `+` for
+commits that do not.
OPTIONS
-------
-v::
- Verbose.
+ Show the commit subjects next to the SHA1s.
<upstream>::
- Upstream branch to compare against.
- Defaults to the first tracked remote branch, if available.
+ Upstream branch to search for equivalent commits.
+ Defaults to the upstream branch of HEAD.
<head>::
Working branch; defaults to HEAD.
<limit>::
Do not report commits up to (and including) limit.
+EXAMPLES
+--------
+
+Patch workflows
+~~~~~~~~~~~~~~~
+
+git-cherry is frequently used in patch-based workflows (see
+linkgit:gitworkflows[7]) to determine if a series of patches has been
+applied by the upstream maintainer. In such a workflow you might
+create and send a topic branch like this:
+
+------------
+$ git checkout -b topic origin/master
+# work and create some commits
+$ git format-patch origin/master
+$ git send-email ... 00*
+------------
+
+Later, you can see whether your changes have been applied by saying
+(still on `topic`):
+
+------------
+$ git fetch # update your notion of origin/master
+$ git cherry -v
+------------
+
+Concrete example
+~~~~~~~~~~~~~~~~
+
+In a situation where topic consisted of three commits, and the
+maintainer applied two of them, the situation might look like:
+
+------------
+$ git log --graph --oneline --decorate --boundary origin/master...topic
+* 7654321 (origin/master) upstream tip commit
+[... snip some other commits ...]
+* cccc111 cherry-pick of C
+* aaaa111 cherry-pick of A
+[... snip a lot more that has happened ...]
+| * cccc000 (topic) commit C
+| * bbbb000 commit B
+| * aaaa000 commit A
+|/
+o 1234567 branch point
+------------
+
+In such cases, git-cherry shows a concise summary of what has yet to
+be applied:
+
+------------
+$ git cherry origin/master topic
+- cccc000... commit C
++ bbbb000... commit B
+- aaaa000... commit A
+------------
+
+Here, we see that the commits A and C (marked with `-`) can be
+dropped from your `topic` branch when you rebase it on top of
+`origin/master`, while the commit B (marked with `+`) still needs to
+be kept so that it will be sent to be applied to `origin/master`.
+
+
+Using a limit
+~~~~~~~~~~~~~
+
+The optional <limit> is useful in cases where your topic is based on
+other work that is not in upstream. Expanding on the previous
+example, this might look like:
+
+------------
+$ git log --graph --oneline --decorate --boundary origin/master...topic
+* 7654321 (origin/master) upstream tip commit
+[... snip some other commits ...]
+* cccc111 cherry-pick of C
+* aaaa111 cherry-pick of A
+[... snip a lot more that has happened ...]
+| * cccc000 (topic) commit C
+| * bbbb000 commit B
+| * aaaa000 commit A
+| * 0000fff (base) unpublished stuff F
+[... snip ...]
+| * 0000aaa unpublished stuff A
+|/
+o 1234567 merge-base between upstream and topic
+------------
+
+By specifying `base` as the limit, you can avoid listing commits
+between `base` and `topic`:
+
+------------
+$ git cherry origin/master topic base
+- cccc000... commit C
++ bbbb000... commit B
+- aaaa000... commit A
+------------
+
+
SEE ALSO
--------
linkgit:git-patch-id[1]
projects / platform / upstream / git.git / blobdiff