branch: honor --abbrev/--no-abbrev in --list mode

When the "branch --list" command was converted to use the --format
facility from the ref-filter API, we forgot to honor the --abbrev
setting in the default output format and instead used a hardcoded
"7".

Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/branch.c b/builtin/branch.c
index cbaa6d03c047975ac88ccb4833a28ea5982b0b4f..64d3e7d7c9b4bc4c7c2ff8765ddcbabc14875c7b 100644 (file)
--- a/builtin/branch.c
+++ b/builtin/branch.c
@@ -335,9 +335,18 @@ static char *build_format(struct ref_filter *filter, int maxwidth, const char *r
                    branch_get_color(BRANCH_COLOR_CURRENT));
 
        if (filter->verbose) {
+               struct strbuf obname = STRBUF_INIT;
+
+               if (filter->abbrev < 0)
+                       strbuf_addf(&obname, "%%(objectname:short)");
+               else if (!filter->abbrev)
+                       strbuf_addf(&obname, "%%(objectname)");
+               else
+                       strbuf_addf(&obname, "%%(objectname:short=%d)", filter->abbrev);
+
                strbuf_addf(&local, "%%(align:%d,left)%%(refname:lstrip=2)%%(end)", maxwidth);
                strbuf_addf(&local, "%s", branch_get_color(BRANCH_COLOR_RESET));
-               strbuf_addf(&local, " %%(objectname:short=7) ");
+               strbuf_addf(&local, " %s ", obname.buf);
 
                if (filter->verbose > 1)
                        strbuf_addf(&local, "%%(if)%%(upstream)%%(then)[%s%%(upstream:short)%s%%(if)%%(upstream:track)"
@@ -346,10 +355,12 @@ static char *build_format(struct ref_filter *filter, int maxwidth, const char *r
                else
                        strbuf_addf(&local, "%%(if)%%(upstream:track)%%(then)%%(upstream:track) %%(end)%%(contents:subject)");
 
-               strbuf_addf(&remote, "%s%%(align:%d,left)%s%%(refname:lstrip=2)%%(end)%s%%(if)%%(symref)%%(then) -> %%(symref:short)"
-                           "%%(else) %%(objectname:short=7) %%(contents:subject)%%(end)",
+               strbuf_addf(&remote, "%s%%(align:%d,left)%s%%(refname:lstrip=2)%%(end)%s"
+                           "%%(if)%%(symref)%%(then) -> %%(symref:short)"
+                           "%%(else) %s %%(contents:subject)%%(end)",
                            branch_get_color(BRANCH_COLOR_REMOTE), maxwidth, quote_literal_for_format(remote_prefix),
-                           branch_get_color(BRANCH_COLOR_RESET));
+                           branch_get_color(BRANCH_COLOR_RESET), obname.buf);
+               strbuf_release(&obname);
        } else {
                strbuf_addf(&local, "%%(refname:lstrip=2)%s%%(if)%%(symref)%%(then) -> %%(symref:short)%%(end)",
                            branch_get_color(BRANCH_COLOR_RESET));

diff --git a/t/t3200-branch.sh b/t/t3200-branch.sh
index 8a833f354e331966f5f927ae94ac8686dd6d166f..39bd5ac8fa442ba53bb54fba5296719ce6b7dbc8 100755 (executable)
--- a/t/t3200-branch.sh
+++ b/t/t3200-branch.sh
@@ -207,6 +207,31 @@ test_expect_success 'git branch --list -d t should fail' '
        test_path_is_missing .git/refs/heads/t
 '
 
+test_expect_success 'git branch --list -v with --abbrev' '
+       test_when_finished "git branch -D t" &&
+       git branch t &&
+       git branch -v --list t >actual.default &&
+       git branch -v --list --abbrev t >actual.abbrev &&
+       test_cmp actual.default actual.abbrev &&
+
+       git branch -v --list --no-abbrev t >actual.noabbrev &&
+       git branch -v --list --abbrev=0 t >actual.0abbrev &&
+       test_cmp actual.noabbrev actual.0abbrev &&
+
+       git branch -v --list --abbrev=36 t >actual.36abbrev &&
+       # how many hexdigits are used?
+       read name objdefault rest <actual.abbrev &&
+       read name obj36 rest <actual.36abbrev &&
+       objfull=$(git rev-parse --verify t) &&
+
+       # are we really getting abbreviations?
+       test "$obj36" != "$objdefault" &&
+       expr "$obj36" : "$objdefault" >/dev/null &&
+       test "$objfull" != "$obj36" &&
+       expr "$objfull" : "$obj36" >/dev/null
+
+'
+
 test_expect_success 'git branch --column' '
        COLUMNS=81 git branch --column=column >actual &&
        cat >expected <<\EOF &&