These 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.
In a moment, we will use these functions to make git stash work with
alternate ref backends.
Signed-off-by: David Turner <dturner@xxxxxxxxxxxxxxxx>
---
Documentation/git-reflog.txt | 10 ++++++
builtin/reflog.c | 75 +++++++++++++++++++++++++++++++++++++++++++-
t/t1411-reflog-show.sh | 12 +++++++
3 files changed, 96 insertions(+), 1 deletion(-)
diff --git a/Documentation/git-reflog.txt b/Documentation/git-reflog.txt
index 5e7908e..2bf8aa6 100644
--- a/Documentation/git-reflog.txt
+++ b/Documentation/git-reflog.txt
@@ -23,6 +23,8 @@ depending on the subcommand:
[--dry-run] [--verbose] [--all | <refs>...]
'git reflog delete' [--rewrite] [--updateref]
[--dry-run] [--verbose] ref@\{specifier\}...
+'git reflog create' <refs>...
+'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 +54,14 @@ 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 "create" subcommand creates a reflog for one or more refs. Most
+refs (those under refs/heads, refs/remotes, and refs/tags) will
+automatically have reflogs created. Other refs will not. This command
+allows manual ref creation.
+
+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..3080865 100644
--- a/builtin/reflog.c
+++ b/builtin/reflog.c
@@ -13,6 +13,10 @@ 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_create_usage[] =
+"git reflog create <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 +703,75 @@ static int cmd_reflog_delete(int argc, const char **argv, const char *prefix)
return status;
}
+static int cmd_reflog_create(int argc, const char **argv, const char *prefix)
+{
+ int i, status = 0, start = 0;
+ struct strbuf err = STRBUF_INIT;
+
+ for (i = 1; i < argc; i++) {
+ const char *arg = argv[i];
+ if (!strcmp(arg, "--")) {
+ i++;
+ break;
+ }
+ else if (arg[0] == '-')
+ usage(reflog_create_usage);
+ else
+ break;
+ }
+
+ start = i;
+
+ if (argc - start < 1)
+ return error("Nothing to create?");
+
+ for (i = start; i < argc; i++) {
+ if (check_refname_format(argv[i], REFNAME_ALLOW_ONELEVEL))
+ die("invalid ref format: %s", argv[i]);
+ }
+ for (i = start; i < argc; i++) {
+ if (safe_create_reflog(argv[i], &err, 1)) {
+ error("could not create reflog %s: %s", argv[i],
+ err.buf);
+ status = 1;
+ strbuf_release(&err);
+ }
+ }
+ 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 | create | exists ]";
int cmd_reflog(int argc, const char **argv, const char *prefix)
{
@@ -724,5 +791,11 @@ 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], "create"))
+ return cmd_reflog_create(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..6e1abe7 100755
--- a/t/t1411-reflog-show.sh
+++ b/t/t1411-reflog-show.sh
@@ -166,4 +166,16 @@ 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_expect_success 'reflog create works' '
+ git update-ref non-refs-dir HEAD &&
+ ! git reflog exists non-refs-dir &&
+ git reflog create non-refs-dir &&
+ git reflog exists non-refs-dir
+'
+
test_done
--
2.0.4.315.gad8727a-twtrsrc
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