------
Given N <references>, the first N lines are the one-line
description from their commit message. The branch head that is
-pointed at by $GIT_DIR/HEAD is prefixed with an asterisk '*'
-character while other heads are prefixed with a '!' character.
+pointed at by $GIT_DIR/HEAD is prefixed with an asterisk `*`
+character while other heads are prefixed with a `!` character.
Following these N lines, one-line log for each commit is
displayed, indented N places. If a commit is on the I-th
-branch, the I-th indentation character shows a '+' sign;
-otherwise it shows a space. Each commit shows a short name that
+branch, the I-th indentation character shows a `+` sign;
+otherwise it shows a space. Merge commits are denoted by
+a `-` sign. Each commit shows a short name that
can be used as an extended SHA1 to name that commit.
The following example shows three branches, "master", "fixes"
------------------------------------------------
$ git show-branch master fixes mhf
-! [master] Add 'git show-branch'.
+* [master] Add 'git show-branch'.
! [fixes] Introduce "reset type" flag to "git reset"
! [mhf] Allow "+remote:local" refspec to cause --force when fetching.
---
+ [mhf~6] Retire git-parse-remote.
+ [mhf~7] Multi-head fetch.
+ [mhf~8] Start adding the $GIT_DIR/remotes/ support.
-+++ [master] Add 'git show-branch'.
+*++ [master] Add 'git show-branch'.
------------------------------------------------
These three branches all forked from a common commit, [master],
whose commit message is "Add 'git show-branch'. "fixes" branch
adds one commit 'Introduce "reset type"'. "mhf" branch has many
-other commits.
+other commits. The current branch is "master".
EXAMPLE
------------------------------------------------
$ git show-branch --more=4 master master^2 | head
-! [master] Merge refs/heads/portable from http://www.cs.berkeley....
+* [master] Merge refs/heads/portable from http://www.cs.berkeley....
! [master^2] Replace C99 array initializers with code.
--
-+ [master] Merge refs/heads/portable from http://www.cs.berkeley....
-++ [master^2] Replace C99 array initializers with code.
-++ [master^2~1] Replace unsetenv() and setenv() with older putenv().
-++ [master^2~2] Include sys/time.h in daemon.c.
-++ [master^2~3] Fix ?: statements.
-++ [master^2~4] Replace zero-length array decls with [].
-+ [master~1] tutorial note about git branch
+- [master] Merge refs/heads/portable from http://www.cs.berkeley....
+*+ [master^2] Replace C99 array initializers with code.
+*+ [master^2~1] Replace unsetenv() and setenv() with older putenv().
+*+ [master^2~2] Include sys/time.h in daemon.c.
+*+ [master^2~3] Fix ?: statements.
+*+ [master^2~4] Replace zero-length array decls with [].
+* [master~1] tutorial note about git branch
------------------------------------------------
The '--more=4' above means "after we reach the merge base of refs,
+ [pu~4] Document "git cherry-pick" and "git revert"
+ [pu~5] Remove git-apply-patch-script.
+ [pu~6] Redo "revert" using three-way merge machinery.
- + [rc] Merge refs/heads/master from .
-+++ [master] Revert "Replace zero-length array decls with []."
- + [rc~1] Merge refs/heads/master from .
-+++ [master~1] Merge refs/heads/portable from http://www.cs.berkeley....
+ - [rc] Merge refs/heads/master from .
+++* [master] Revert "Replace zero-length array decls with []."
+ - [rc~1] Merge refs/heads/master from .
+... [master~1] Merge refs/heads/portable from http://www.cs.berkeley....
------------------------------------------------
* [master] Merge work in mybranch
! [mybranch] Some work.
--
-+ [master] Merge work in mybranch
-++ [mybranch] Some work.
+- [master] Merge work in mybranch
+*+ [mybranch] Some work.
------------------------------------------------
The first two lines indicate that it is showing the two branches
the later output lines is used to show commits contained in the
`master` branch, and the second column for the `mybranch`
branch. Three commits are shown along with their log messages.
-All of them have plus `+` characters in the first column, which
+All of them have non blank characters in the first column (`*`
+shows an ordinary commit on the current branch, `.` is a merge commit), which
means they are now part of the `master` branch. Only the "Some
work" commit has the plus `+` character in the second column,
because `mybranch` has not been merged to incorporate these
! [master] Merge work in mybranch
* [mybranch] Merge work in mybranch
--
-++ [master] Merge work in mybranch
+-- [master] Merge work in mybranch
------------------------------------------------
! [master] Merge work in mybranch
* [mybranch] Merge work in mybranch
--
-++ [master] Merge work in mybranch
-++ [master^2] Some work.
-++ [master^] Some fun.
+-- [master] Merge work in mybranch
++* [master^2] Some work.
++* [master^] Some fun.
------------
Remember, before running `git merge`, our `master` head was at
! [mybranch] Some work.
--
+ [mybranch] Some work.
-+ [master] Some fun.
-++ [mybranch^] New day.
+* [master] Some fun.
+*+ [mybranch^] New day.
------------
Now we are ready to experiment with the merge by hand.
+ [diff-fix] Fix rename detection.
+ [diff-fix~1] Better common substring algorithm.
+ [commit-fix] Fix commit message normalization.
- + [master] Release candidate #1
-+++ [diff-fix~2] Pretty-print messages.
+ * [master] Release candidate #1
+++* [diff-fix~2] Pretty-print messages.
------------
Both fixes are tested well, and at this point, you want to merge
! [diff-fix] Fix rename detection.
* [master] Merge fix in commit-fix
---
- + [master] Merge fix in commit-fix
-+ + [commit-fix] Fix commit message normalization.
- + [master~1] Merge fix in diff-fix
- ++ [diff-fix] Fix rename detection.
- ++ [diff-fix~1] Better common substring algorithm.
- + [master~2] Release candidate #1
-+++ [master~3] Pretty-print messages.
+ - [master] Merge fix in commit-fix
++ * [commit-fix] Fix commit message normalization.
+ - [master~1] Merge fix in diff-fix
+ +* [diff-fix] Fix rename detection.
+ +* [diff-fix~1] Better common substring algorithm.
+ * [master~2] Release candidate #1
+++* [master~3] Pretty-print messages.
------------
However, there is no particular reason to merge in one branch
! [diff-fix] Fix rename detection.
* [master] Octopus merge of branches 'diff-fix' and 'commit-fix'
---
- + [master] Octopus merge of branches 'diff-fix' and 'commit-fix'
-+ + [commit-fix] Fix commit message normalization.
- ++ [diff-fix] Fix rename detection.
- ++ [diff-fix~1] Better common substring algorithm.
- + [master~1] Release candidate #1
-+++ [master~2] Pretty-print messages.
+ - [master] Octopus merge of branches 'diff-fix' and 'commit-fix'
++ * [commit-fix] Fix commit message normalization.
+ +* [diff-fix] Fix rename detection.
+ +* [diff-fix~1] Better common substring algorithm.
+ * [master~1] Release candidate #1
+++* [master~2] Pretty-print messages.
------------
Note that you should not do Octopus because you can. An octopus
int sha1_name = 0;
int shown_merge_point = 0;
int topo_order = 0;
+ int head_at = -1;
git_config(git_show_branch_config);
setup_git_directory();
}
/* header lines never need name */
show_one_commit(rev[i], 1);
+ if (is_head)
+ head_at = i;
}
if (0 <= extra) {
for (i = 0; i < num_rev; i++)
shown_merge_point |= ((this_flag & all_revs) == all_revs);
if (1 < num_rev) {
- for (i = 0; i < num_rev; i++)
- putchar((this_flag & (1u << (i + REV_SHIFT)))
- ? '+' : ' ');
+ int is_merge = !!(commit->parents && commit->parents->next);
+ for (i = 0; i < num_rev; i++) {
+ int mark;
+ if (!(this_flag & (1u << (i + REV_SHIFT))))
+ mark = ' ';
+ else if (is_merge)
+ mark = '-';
+ else if (i == head_at)
+ mark = '*';
+ else
+ mark = '+';
+ putchar(mark);
+ }
putchar(' ');
}
show_one_commit(commit, no_name);
* [master] Merged "mybranch" changes.
! [mybranch] Some work.
--
-+ [master] Merged "mybranch" changes.
-++ [mybranch] Some work.
+- [master] Merged "mybranch" changes.
+*+ [mybranch] Some work.
EOF
git show-branch --topo-order master mybranch > show-branch.output
! [master] Merged "mybranch" changes.
* [mybranch] Merged "mybranch" changes.
--
-++ [master] Merged "mybranch" changes.
+-- [master] Merged "mybranch" changes.
EOF
git show-branch --topo-order master mybranch > show-branch2.output