Enhance 'git for-each-ref' with color formatting options.  You can now
use the following format in for-each-ref:

  %(color:green)%(refname:short)%(color:reset)

Signed-off-by: Ramkumar Ramachandra <artag...@gmail.com>
---
 Documentation/git-for-each-ref.txt |  4 ++++
 builtin/for-each-ref.c             | 11 +++++++++--
 t/t6300-for-each-ref.sh            | 14 ++++++++++++++
 3 files changed, 27 insertions(+), 2 deletions(-)

diff --git a/Documentation/git-for-each-ref.txt 
b/Documentation/git-for-each-ref.txt
index c9b192e..2f3ac22 100644
--- a/Documentation/git-for-each-ref.txt
+++ b/Documentation/git-for-each-ref.txt
@@ -101,6 +101,10 @@ HEAD::
        Used to indicate the currently checked out branch.  Is '*' if
        HEAD points to the current ref, and ' ' otherwise.
 
+color::
+       Used to change color of output.  Followed by `:<colorname>`,
+       where names are described in `color.branch.*`.
+
 In addition to the above, for commit and tag objects, the header
 field names (`tree`, `parent`, `object`, `type`, and `tag`) can
 be used to specify the value in the header field.
diff --git a/builtin/for-each-ref.c b/builtin/for-each-ref.c
index ed81407..2ff4e54 100644
--- a/builtin/for-each-ref.c
+++ b/builtin/for-each-ref.c
@@ -9,6 +9,7 @@
 #include "quote.h"
 #include "parse-options.h"
 #include "remote.h"
+#include "color.h"
 
 /* Quoting styles */
 #define QUOTE_NONE 0
@@ -76,6 +77,7 @@ static struct {
        { "symref" },
        { "flag" },
        { "HEAD" },
+       { "color" },
 };
 
 /*
@@ -662,8 +664,13 @@ static void populate_value(struct refinfo *ref)
                            !branch->merge[0]->dst)
                                continue;
                        refname = branch->merge[0]->dst;
-               }
-               else if (!strcmp(name, "flag")) {
+               } else if (!prefixcmp(name, "color:")) {
+                       char color[COLOR_MAXLEN] = "";
+
+                       color_parse(name + 6, "--format", color);
+                       v->s = xstrdup(color);
+                       continue;
+               } else if (!strcmp(name, "flag")) {
                        char buf[256], *cp = buf;
                        if (ref->flag & REF_ISSYMREF)
                                cp = copy_advance(cp, ",symref");
diff --git a/t/t6300-for-each-ref.sh b/t/t6300-for-each-ref.sh
index 9d874fd..35ca991 100755
--- a/t/t6300-for-each-ref.sh
+++ b/t/t6300-for-each-ref.sh
@@ -338,6 +338,20 @@ test_expect_success 'Check for invalid refname format' '
        test_must_fail git for-each-ref --format="%(refname:INVALID)"
 '
 
+get_color ()
+{
+       git config --get-color no.such.slot "$1"
+}
+
+cat >expected <<EOF
+$(get_color red)$(git rev-parse --short HEAD)$(get_color reset) origin/master
+EOF
+
+test_expect_success 'Check %(color:...) ' '
+       git for-each-ref 
--format="%(color:red)%(objectname:short)%(color:reset) %(upstream:short)" 
refs/heads >actual &&
+       test_cmp expected actual
+'
+
 cat >expected <<\EOF
 heads/master
 tags/master
-- 
1.8.5.rc0.6.gfd75b41

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