for-each-ref: add '--merged' and '--no-merged' options

Add the '--merged' and '--no-merged' options provided by 'ref-filter'.
The '--merged' option lets the user to only list refs merged into the
named commit. The '--no-merged' option lets the user to only list refs
not merged into the named commit.

Add documentation and tests for the same.

Based-on-patch-by: Jeff King <peff@peff.net>
Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr>
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/Documentation/git-for-each-ref.txt b/Documentation/git-for-each-ref.txt
index ff0283b..2842195 100644 (file)
--- a/Documentation/git-for-each-ref.txt
+++ b/Documentation/git-for-each-ref.txt
@@ -10,7 +10,7 @@ SYNOPSIS
 [verse]
 'git for-each-ref' [--count=<count>] [--shell|--perl|--python|--tcl]
                   [(--sort=<key>)...] [--format=<format>] [<pattern>...]
-                  [--points-at <object>]
+                  [--points-at <object>] [(--merged | --no-merged) [<object>]]
 
 DESCRIPTION
 -----------
@@ -66,6 +66,14 @@ OPTIONS
 --points-at <object>::
        Only list refs which points at the given object.
 
+--merged [<object>]::
+       Only list refs whose tips are reachable from the
+       specified commit (HEAD if not specified).
+
+--no-merged [<object>]::
+       Only list refs whose tips are not reachable from the
+       specified commit (HEAD if not specified).
+
 FIELD NAMES
 -----------
 

diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c
index ae5419e..7521850 100644 (file)
--- a/builtin/for-each-ref.c
+++ b/builtin/for-each-ref.c
@@ -8,6 +8,7 @@
 static char const * const for_each_ref_usage[] = {
        N_("git for-each-ref [<options>] [<pattern>]"),
        N_("git for-each-ref [--points-at <object>]"),
+       N_("git for-each-ref [(--merged | --no-merged) [<object>]]"),
        NULL
 };
 
@@ -38,6 +39,8 @@ int cmd_for_each_ref(int argc, const char **argv, const char *prefix)
                OPT_CALLBACK(0, "points-at", &filter.points_at,
                             N_("object"), N_("print only refs which points at the given object"),
                             parse_opt_object_name),
+               OPT_MERGED(&filter, N_("print only refs that are merged")),
+               OPT_NO_MERGED(&filter, N_("print only refs that are not merged")),
                OPT_END(),
        };
 

diff --git a/t/t6302-for-each-ref-filter.sh b/t/t6302-for-each-ref-filter.sh
index 98ff4d5..0e68dce 100755 (executable)
--- a/t/t6302-for-each-ref-filter.sh
+++ b/t/t6302-for-each-ref-filter.sh
@@ -43,4 +43,27 @@ test_expect_success 'check signed tags with --points-at' '
        test_cmp expect actual
 '
 
+test_expect_success 'filtering with --merged' '
+       cat >expect <<-\EOF &&
+       refs/heads/master
+       refs/odd/spot
+       refs/tags/one
+       refs/tags/three
+       refs/tags/two
+       EOF
+       git for-each-ref --format="%(refname)" --merged=master >actual &&
+       test_cmp expect actual
+'
+
+test_expect_success 'filtering with --no-merged' '
+       cat >expect <<-\EOF &&
+       refs/heads/side
+       refs/tags/double-tag
+       refs/tags/four
+       refs/tags/signed-tag
+       EOF
+       git for-each-ref --format="%(refname)" --no-merged=master >actual &&
+       test_cmp expect actual
+'
+
 test_done