These options filter the output from git branch to only include branches
whose tip is either merged or not merged into HEAD.
The use-case for these options is when working with integration of branches
from many remotes: `git branch --unmerged -a` will show a nice list of merge
candidates while `git branch --merged -a` will show the progress of your
integration work.
Also, a plain `git branch --merged` is a quick way to find local branches
which you might want to delete.
Signed-off-by: Lars Hjemli <hjemli@xxxxxxxxx>
---
Documentation/git-branch.txt | 4 +++-
builtin-branch.c | 29 ++++++++++++++++++++++++++++-
2 files changed, 31 insertions(+), 2 deletions(-)
diff --git a/Documentation/git-branch.txt b/Documentation/git-branch.txt
index 6f07a17..2693519 100644
--- a/Documentation/git-branch.txt
+++ b/Documentation/git-branch.txt
@@ -8,7 +8,7 @@ git-branch - List, create, or delete branches
SYNOPSIS
--------
[verse]
-'git-branch' [--color | --no-color] [-r | -a]
+'git-branch' [--color | --no-color] [-r | -a] [--merged | --unmerged]
[-v [--abbrev=<length> | --no-abbrev]]
[--contains <commit>]
'git-branch' [--track | --no-track] [-l] [-f] <branchname> [<start-point>]
@@ -24,6 +24,8 @@ and option `-a` shows both.
With `--contains <commit>`, shows only the branches that
contains the named commit (in other words, the branches whose
tip commits are descendant of the named commit).
+With `--merged`, only branches merged into HEAD will be listed,
+and with `--unmerged` only branches not merged into HEAD will be listed.
In its second form, a new branch named <branchname> will be created.
It will start out with a head equal to the one given as <start-point>.
diff --git a/builtin-branch.c b/builtin-branch.c
index 5bc4526..7c91ff0 100644
--- a/builtin-branch.c
+++ b/builtin-branch.c
@@ -15,7 +15,7 @@
#include "branch.h"
static const char * const builtin_branch_usage[] = {
- "git-branch [options] [-r | -a]",
+ "git-branch [options] [-r | -a] [--merged | --unmerged]",
"git-branch [options] [-l] [-f] <branchname> [<start-point>]",
"git-branch [options] [-r] (-d | -D) <branchname>",
"git-branch [options] (-m | -M) [<oldbranch>] <newbranch>",
@@ -30,6 +30,8 @@ static const char * const builtin_branch_usage[] = {
static const char *head;
static unsigned char head_sha1[20];
+static int merged, unmerged;
+
static int branch_use_color = -1;
static char branch_colors[][COLOR_MAXLEN] = {
"\033[m", /* reset */
@@ -204,6 +206,22 @@ static int has_commit(const unsigned char *sha1, struct commit_list *with_commit
return 0;
}
+static int is_merged(const unsigned char *sha1, const char *refname)
+{
+ static struct commit *head_commit;
+ struct commit *branch;
+
+ if (!head_commit) {
+ head_commit = lookup_commit_reference(head_sha1);
+ if (!head_commit)
+ die("Unable to lookup HEAD");
+ }
+ branch = lookup_commit_reference(sha1);
+ if (!branch)
+ die("Unable to lookup branch %s", refname);
+ return in_merge_bases(branch, &head_commit, 1);
+}
+
static int append_ref(const char *refname, const unsigned char *sha1, int flags, void *cb_data)
{
struct ref_list *ref_list = (struct ref_list*)(cb_data);
@@ -231,6 +249,12 @@ static int append_ref(const char *refname, const unsigned char *sha1, int flags,
if ((kind & ref_list->kinds) == 0)
return 0;
+ if (unmerged == 1 && is_merged(sha1, refname))
+ return 0;
+
+ if (merged == 1 && !is_merged(sha1, refname))
+ return 0;
+
/* Resize buffer */
if (ref_list->index >= ref_list->alloc) {
ref_list->alloc = alloc_nr(ref_list->alloc);
@@ -444,6 +468,9 @@ int cmd_branch(int argc, const char **argv, const char *prefix)
OPT_BIT('M', NULL, &rename, "move/rename a branch, even if target exists", 2),
OPT_BOOLEAN('l', NULL, &reflog, "create the branch's reflog"),
OPT_BOOLEAN('f', NULL, &force_create, "force creation (when already exists)"),
+ OPT_BIT(0, "unmerged", &unmerged, "list only unmerged branches", 1),
+ OPT_BIT(0, "merged", &merged, "list only merged branches", 1),
+
OPT_END(),
};
--
1.5.3.1.1.g1e61
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