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authorJunio C Hamano <gitster@pobox.com>2008-08-06 18:52:50 -0700
committerJunio C Hamano <gitster@pobox.com>2008-08-07 11:40:22 -0700
commit7be9467204de4680e84c366cb30ff05c1c10edbd (patch)
treee15224b099bb63a1f6ff11d74364c8447c02e38f
parent1e040c0b0577b3de0006f43daa71bfe7ad7532c0 (diff)
parent60bce2bb8b3cd5ca56f8156cbca16abee151d817 (diff)
downloadgit-7be9467204de4680e84c366cb30ff05c1c10edbd.tar.gz
git-7be9467204de4680e84c366cb30ff05c1c10edbd.tar.xz
Merge branch 'jc/reflog-expire' into maint
* jc/reflog-expire: Make default expiration period of reflog used for stash infinite Per-ref reflog expiry configuration
-rw-r--r--builtin-reflog.c156
1 files changed, 137 insertions, 19 deletions
diff --git a/builtin-reflog.c b/builtin-reflog.c
index b151e24ff..125d455b9 100644
--- a/builtin-reflog.c
+++ b/builtin-reflog.c
@@ -269,7 +269,9 @@ static int expire_reflog(const char *ref, const unsigned char *sha1, int unused,
int status = 0;
memset(&cb, 0, sizeof(cb));
- /* we take the lock for the ref itself to prevent it from
+
+ /*
+ * we take the lock for the ref itself to prevent it from
* getting updated.
*/
lock = lock_any_ref_for_update(ref, sha1, 0);
@@ -331,21 +333,130 @@ static int collect_reflog(const char *ref, const unsigned char *sha1, int unused
return 0;
}
-static int reflog_expire_config(const char *var, const char *value, void *cb)
+static struct reflog_expire_cfg {
+ struct reflog_expire_cfg *next;
+ unsigned long expire_total;
+ unsigned long expire_unreachable;
+ size_t len;
+ char pattern[FLEX_ARRAY];
+} *reflog_expire_cfg, **reflog_expire_cfg_tail;
+
+static struct reflog_expire_cfg *find_cfg_ent(const char *pattern, size_t len)
{
- if (!strcmp(var, "gc.reflogexpire")) {
- if (!value)
- config_error_nonbool(var);
- default_reflog_expire = approxidate(value);
+ struct reflog_expire_cfg *ent;
+
+ if (!reflog_expire_cfg_tail)
+ reflog_expire_cfg_tail = &reflog_expire_cfg;
+
+ for (ent = reflog_expire_cfg; ent; ent = ent->next)
+ if (ent->len == len &&
+ !memcmp(ent->pattern, pattern, len))
+ return ent;
+
+ ent = xcalloc(1, (sizeof(*ent) + len));
+ memcpy(ent->pattern, pattern, len);
+ ent->len = len;
+ *reflog_expire_cfg_tail = ent;
+ reflog_expire_cfg_tail = &(ent->next);
+ return ent;
+}
+
+static int parse_expire_cfg_value(const char *var, const char *value, unsigned long *expire)
+{
+ if (!value)
+ return config_error_nonbool(var);
+ if (!strcmp(value, "never") || !strcmp(value, "false")) {
+ *expire = 0;
return 0;
}
- if (!strcmp(var, "gc.reflogexpireunreachable")) {
- if (!value)
- config_error_nonbool(var);
- default_reflog_expire_unreachable = approxidate(value);
+ *expire = approxidate(value);
+ return 0;
+}
+
+/* expiry timer slot */
+#define EXPIRE_TOTAL 01
+#define EXPIRE_UNREACH 02
+
+static int reflog_expire_config(const char *var, const char *value, void *cb)
+{
+ const char *lastdot = strrchr(var, '.');
+ unsigned long expire;
+ int slot;
+ struct reflog_expire_cfg *ent;
+
+ if (!lastdot || prefixcmp(var, "gc."))
+ return git_default_config(var, value, cb);
+
+ if (!strcmp(lastdot, ".reflogexpire")) {
+ slot = EXPIRE_TOTAL;
+ if (parse_expire_cfg_value(var, value, &expire))
+ return -1;
+ } else if (!strcmp(lastdot, ".reflogexpireunreachable")) {
+ slot = EXPIRE_UNREACH;
+ if (parse_expire_cfg_value(var, value, &expire))
+ return -1;
+ } else
+ return git_default_config(var, value, cb);
+
+ if (lastdot == var + 2) {
+ switch (slot) {
+ case EXPIRE_TOTAL:
+ default_reflog_expire = expire;
+ break;
+ case EXPIRE_UNREACH:
+ default_reflog_expire_unreachable = expire;
+ break;
+ }
return 0;
}
- return git_default_config(var, value, cb);
+
+ ent = find_cfg_ent(var + 3, lastdot - (var+3));
+ if (!ent)
+ return -1;
+ switch (slot) {
+ case EXPIRE_TOTAL:
+ ent->expire_total = expire;
+ break;
+ case EXPIRE_UNREACH:
+ ent->expire_unreachable = expire;
+ break;
+ }
+ return 0;
+}
+
+static void set_reflog_expiry_param(struct cmd_reflog_expire_cb *cb, int slot, const char *ref)
+{
+ struct reflog_expire_cfg *ent;
+
+ if (slot == (EXPIRE_TOTAL|EXPIRE_UNREACH))
+ return; /* both given explicitly -- nothing to tweak */
+
+ for (ent = reflog_expire_cfg; ent; ent = ent->next) {
+ if (!fnmatch(ent->pattern, ref, 0)) {
+ if (!(slot & EXPIRE_TOTAL))
+ cb->expire_total = ent->expire_total;
+ if (!(slot & EXPIRE_UNREACH))
+ cb->expire_unreachable = ent->expire_unreachable;
+ return;
+ }
+ }
+
+ /*
+ * If unconfigured, make stash never expire
+ */
+ if (!strcmp(ref, "refs/stash")) {
+ if (!(slot & EXPIRE_TOTAL))
+ cb->expire_total = 0;
+ if (!(slot & EXPIRE_UNREACH))
+ cb->expire_unreachable = 0;
+ return;
+ }
+
+ /* Nothing matched -- use the default value */
+ if (!(slot & EXPIRE_TOTAL))
+ cb->expire_total = default_reflog_expire;
+ if (!(slot & EXPIRE_UNREACH))
+ cb->expire_unreachable = default_reflog_expire_unreachable;
}
static int cmd_reflog_expire(int argc, const char **argv, const char *prefix)
@@ -353,6 +464,7 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix)
struct cmd_reflog_expire_cb cb;
unsigned long now = time(NULL);
int i, status, do_all;
+ int explicit_expiry = 0;
git_config(reflog_expire_config, NULL);
@@ -367,20 +479,18 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix)
cb.expire_total = default_reflog_expire;
cb.expire_unreachable = default_reflog_expire_unreachable;
- /*
- * We can trust the commits and objects reachable from refs
- * even in older repository. We cannot trust what's reachable
- * from reflog if the repository was pruned with older git.
- */
-
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (!strcmp(arg, "--dry-run") || !strcmp(arg, "-n"))
cb.dry_run = 1;
- else if (!prefixcmp(arg, "--expire="))
+ else if (!prefixcmp(arg, "--expire=")) {
cb.expire_total = approxidate(arg + 9);
- else if (!prefixcmp(arg, "--expire-unreachable="))
+ explicit_expiry |= EXPIRE_TOTAL;
+ }
+ else if (!prefixcmp(arg, "--expire-unreachable=")) {
cb.expire_unreachable = approxidate(arg + 21);
+ explicit_expiry |= EXPIRE_UNREACH;
+ }
else if (!strcmp(arg, "--stale-fix"))
cb.stalefix = 1;
else if (!strcmp(arg, "--rewrite"))
@@ -400,6 +510,12 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix)
else
break;
}
+
+ /*
+ * We can trust the commits and objects reachable from refs
+ * even in older repository. We cannot trust what's reachable
+ * from reflog if the repository was pruned with older git.
+ */
if (cb.stalefix) {
init_revisions(&cb.revs, prefix);
if (cb.verbose)
@@ -417,6 +533,7 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix)
for_each_reflog(collect_reflog, &collected);
for (i = 0; i < collected.nr; i++) {
struct collected_reflog *e = collected.e[i];
+ set_reflog_expiry_param(&cb, explicit_expiry, e->reflog);
status |= expire_reflog(e->reflog, e->sha1, 0, &cb);
free(e);
}
@@ -430,6 +547,7 @@ static int cmd_reflog_expire(int argc, const char **argv, const char *prefix)
status |= error("%s points nowhere!", ref);
continue;
}
+ set_reflog_expiry_param(&cb, explicit_expiry, ref);
status |= expire_reflog(ref, sha1, 0, &cb);
}
return status;