Theis are necessary because alternate ref backends might store reflogs
somewhere other than .git/logs. Code that now directly manipulates
.git/logs should instead go through git-reflog.
Signed-off-by: David Turner dtur...@twopensource.com
---
Documentation/git-reflog.txt | 4
builtin/reflog.c | 33 -
t/t1411-reflog-show.sh | 5 +
3 files changed, 41 insertions(+), 1 deletion(-)
diff --git a/Documentation/git-reflog.txt b/Documentation/git-reflog.txt
index 5e7908e..4b08fc7 100644
--- a/Documentation/git-reflog.txt
+++ b/Documentation/git-reflog.txt
@@ -23,6 +23,7 @@ depending on the subcommand:
[--dry-run] [--verbose] [--all | refs...]
'git reflog delete' [--rewrite] [--updateref]
[--dry-run] [--verbose] ref@\{specifier\}...
+'git reflog exists' ref
Reference logs, or reflogs, record when the tips of branches and
other references were updated in the local repository. Reflogs are
@@ -52,6 +53,9 @@ argument must be an _exact_ entry (e.g. `git reflog delete
master@{2}`). This subcommand is also typically not used directly by
end users.
+The exists subcommand checks whether a ref has a reflog. It exists
+with zero status if the reflog exists, and non-zero status if it does
+not.
OPTIONS
---
diff --git a/builtin/reflog.c b/builtin/reflog.c
index c2eb8ff..7ed0e85 100644
--- a/builtin/reflog.c
+++ b/builtin/reflog.c
@@ -13,6 +13,8 @@ static const char reflog_expire_usage[] =
git reflog expire [--expire=time] [--expire-unreachable=time] [--rewrite]
[--updateref] [--stale-fix] [--dry-run | -n] [--verbose] [--all] refs...;
static const char reflog_delete_usage[] =
git reflog delete [--rewrite] [--updateref] [--dry-run | -n] [--verbose]
refs...;
+static const char reflog_exists_usage[] =
+git reflog exists ref;
static unsigned long default_reflog_expire;
static unsigned long default_reflog_expire_unreachable;
@@ -699,12 +701,38 @@ static int cmd_reflog_delete(int argc, const char **argv,
const char *prefix)
return status;
}
+static int cmd_reflog_exists(int argc, const char **argv, const char *prefix)
+{
+ int i, start = 0;
+
+ for (i = 1; i argc; i++) {
+ const char *arg = argv[i];
+ if (!strcmp(arg, --)) {
+ i++;
+ break;
+ }
+ else if (arg[0] == '-')
+ usage(reflog_exists_usage);
+ else
+ break;
+ }
+
+ start = i;
+
+ if (argc - start != 1)
+ usage(reflog_exists_usage);
+
+ if (check_refname_format(argv[start], REFNAME_ALLOW_ONELEVEL))
+ die(invalid ref format: %s, argv[start]);
+ return !reflog_exists(argv[start]);
+}
+
/*
* main reflog
*/
static const char reflog_usage[] =
-git reflog [ show | expire | delete ];
+git reflog [ show | expire | delete | exists ];
int cmd_reflog(int argc, const char **argv, const char *prefix)
{
@@ -724,5 +752,8 @@ int cmd_reflog(int argc, const char **argv, const char
*prefix)
if (!strcmp(argv[1], delete))
return cmd_reflog_delete(argc - 1, argv + 1, prefix);
+ if (!strcmp(argv[1], exists))
+ return cmd_reflog_exists(argc - 1, argv + 1, prefix);
+
return cmd_log_reflog(argc, argv, prefix);
}
diff --git a/t/t1411-reflog-show.sh b/t/t1411-reflog-show.sh
index 6f47c0d..3eb4f10 100755
--- a/t/t1411-reflog-show.sh
+++ b/t/t1411-reflog-show.sh
@@ -166,4 +166,9 @@ test_expect_success 'git log -g -p shows diffs vs. parents'
'
test_cmp expect actual
'
+test_expect_success 'reflog exists works' '
+ git reflog exists refs/heads/master
+ ! git reflog exists refs/heads/nonexistent
+'
+
test_done
--
2.0.5.499.g01f6352.dirty-twtrsrc
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