-#include "cache.h"
#include "builtin.h"
+#include "lockfile.h"
#include "commit.h"
#include "refs.h"
#include "dir.h"
#include "revision.h"
#include "reachable.h"
-/*
- * reflog expire
- */
-
+/* NEEDSWORK: switch to using parse_options */
static const char reflog_expire_usage[] =
-"git reflog expire [--verbose] [--dry-run] [--stale-fix] [--expire=<time>] [--expire-unreachable=<time>] [--all] <refs>...";
+"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 [--verbose] [--dry-run] [--rewrite] [--updateref] <refs>...";
+"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;
struct cmd_reflog_expire_cb {
struct rev_info revs;
- int dry_run;
int stalefix;
- int rewrite;
- int updateref;
- int verbose;
unsigned long expire_total;
unsigned long expire_unreachable;
int recno;
};
-struct expire_reflog_cb {
- FILE *newlog;
+struct expire_reflog_policy_cb {
enum {
UE_NORMAL,
UE_ALWAYS,
} unreachable_expire_kind;
struct commit_list *mark_list;
unsigned long mark_limit;
- struct cmd_reflog_expire_cb *cmd;
- unsigned char last_kept_sha1[20];
+ struct cmd_reflog_expire_cb cmd;
+ struct commit *tip_commit;
+ struct commit_list *tips;
};
struct collected_reflog {
unsigned char sha1[20];
char reflog[FLEX_ARRAY];
};
+
struct collect_reflog_cb {
struct collected_reflog **e;
int alloc;
complete = 0;
}
}
- free(tree->buffer);
- tree->buffer = NULL;
+ free_tree_buffer(tree);
if (complete)
tree->object.flags |= SEEN;
* the expire_limit and queue them back, so that the caller can call
* us again to restart the traversal with longer expire_limit.
*/
-static void mark_reachable(struct expire_reflog_cb *cb)
+static void mark_reachable(struct expire_reflog_policy_cb *cb)
{
struct commit *commit;
struct commit_list *pending;
cb->mark_list = leftover;
}
-static int unreachable(struct expire_reflog_cb *cb, struct commit *commit, unsigned char *sha1)
+static int unreachable(struct expire_reflog_policy_cb *cb, struct commit *commit, unsigned char *sha1)
{
/*
* We may or may not have the commit yet - if not, look it
return !(commit->object.flags & REACHABLE);
}
-static int expire_reflog_ent(unsigned char *osha1, unsigned char *nsha1,
- const char *email, unsigned long timestamp, int tz,
- const char *message, void *cb_data)
+/*
+ * Return true iff the specified reflog entry should be expired.
+ */
+static int should_expire_reflog_ent(unsigned char *osha1, unsigned char *nsha1,
+ const char *email, unsigned long timestamp, int tz,
+ const char *message, void *cb_data)
{
- struct expire_reflog_cb *cb = cb_data;
+ struct expire_reflog_policy_cb *cb = cb_data;
struct commit *old, *new;
- if (timestamp < cb->cmd->expire_total)
- goto prune;
-
- if (cb->cmd->rewrite)
- osha1 = cb->last_kept_sha1;
+ if (timestamp < cb->cmd.expire_total)
+ return 1;
old = new = NULL;
- if (cb->cmd->stalefix &&
+ if (cb->cmd.stalefix &&
(!keep_entry(&old, osha1) || !keep_entry(&new, nsha1)))
- goto prune;
+ return 1;
- if (timestamp < cb->cmd->expire_unreachable) {
+ if (timestamp < cb->cmd.expire_unreachable) {
if (cb->unreachable_expire_kind == UE_ALWAYS)
- goto prune;
+ return 1;
if (unreachable(cb, old, osha1) || unreachable(cb, new, nsha1))
- goto prune;
+ return 1;
}
- if (cb->cmd->recno && --(cb->cmd->recno) == 0)
- goto prune;
-
- if (cb->newlog) {
- char sign = (tz < 0) ? '-' : '+';
- int zone = (tz < 0) ? (-tz) : tz;
- fprintf(cb->newlog, "%s %s %s %lu %c%04d\t%s",
- sha1_to_hex(osha1), sha1_to_hex(nsha1),
- email, timestamp, sign, zone,
- message);
- hashcpy(cb->last_kept_sha1, nsha1);
- }
- if (cb->cmd->verbose)
- printf("keep %s", message);
- return 0;
- prune:
- if (!cb->newlog)
- printf("would prune %s", message);
- else if (cb->cmd->verbose)
- printf("prune %s", message);
+ if (cb->cmd.recno && --(cb->cmd.recno) == 0)
+ return 1;
+
return 0;
}
-static int push_tip_to_list(const char *refname, const unsigned char *sha1, int flags, void *cb_data)
+static int push_tip_to_list(const char *refname, const struct object_id *oid,
+ int flags, void *cb_data)
{
struct commit_list **list = cb_data;
struct commit *tip_commit;
if (flags & REF_ISSYMREF)
return 0;
- tip_commit = lookup_commit_reference_gently(sha1, 1);
+ tip_commit = lookup_commit_reference_gently(oid->hash, 1);
if (!tip_commit)
return 0;
commit_list_insert(tip_commit, list);
return 0;
}
-static int expire_reflog(const char *ref, const unsigned char *sha1, int unused, void *cb_data)
+static void reflog_expiry_prepare(const char *refname,
+ const unsigned char *sha1,
+ void *cb_data)
{
- struct cmd_reflog_expire_cb *cmd = cb_data;
- struct expire_reflog_cb cb;
- struct ref_lock *lock;
- char *log_file, *newlog_path = NULL;
- struct commit *tip_commit;
- struct commit_list *tips;
- int status = 0;
-
- memset(&cb, 0, sizeof(cb));
-
- /*
- * we take the lock for the ref itself to prevent it from
- * getting updated.
- */
- lock = lock_any_ref_for_update(ref, sha1, 0);
- if (!lock)
- return error("cannot lock ref '%s'", ref);
- log_file = git_pathdup("logs/%s", ref);
- if (!file_exists(log_file))
- goto finish;
- if (!cmd->dry_run) {
- newlog_path = git_pathdup("logs/%s.lock", ref);
- cb.newlog = fopen(newlog_path, "w");
- }
-
- cb.cmd = cmd;
+ struct expire_reflog_policy_cb *cb = cb_data;
- if (!cmd->expire_unreachable || !strcmp(ref, "HEAD")) {
- tip_commit = NULL;
- cb.unreachable_expire_kind = UE_HEAD;
+ if (!cb->cmd.expire_unreachable || !strcmp(refname, "HEAD")) {
+ cb->tip_commit = NULL;
+ cb->unreachable_expire_kind = UE_HEAD;
} else {
- tip_commit = lookup_commit_reference_gently(sha1, 1);
- if (!tip_commit)
- cb.unreachable_expire_kind = UE_ALWAYS;
+ cb->tip_commit = lookup_commit_reference_gently(sha1, 1);
+ if (!cb->tip_commit)
+ cb->unreachable_expire_kind = UE_ALWAYS;
else
- cb.unreachable_expire_kind = UE_NORMAL;
+ cb->unreachable_expire_kind = UE_NORMAL;
}
- if (cmd->expire_unreachable <= cmd->expire_total)
- cb.unreachable_expire_kind = UE_ALWAYS;
+ if (cb->cmd.expire_unreachable <= cb->cmd.expire_total)
+ cb->unreachable_expire_kind = UE_ALWAYS;
- cb.mark_list = NULL;
- tips = NULL;
- if (cb.unreachable_expire_kind != UE_ALWAYS) {
- if (cb.unreachable_expire_kind == UE_HEAD) {
+ cb->mark_list = NULL;
+ cb->tips = NULL;
+ if (cb->unreachable_expire_kind != UE_ALWAYS) {
+ if (cb->unreachable_expire_kind == UE_HEAD) {
struct commit_list *elem;
- for_each_ref(push_tip_to_list, &tips);
- for (elem = tips; elem; elem = elem->next)
- commit_list_insert(elem->item, &cb.mark_list);
+
+ for_each_ref(push_tip_to_list, &cb->tips);
+ for (elem = cb->tips; elem; elem = elem->next)
+ commit_list_insert(elem->item, &cb->mark_list);
} else {
- commit_list_insert(tip_commit, &cb.mark_list);
+ commit_list_insert(cb->tip_commit, &cb->mark_list);
}
- cb.mark_limit = cmd->expire_total;
- mark_reachable(&cb);
+ cb->mark_limit = cb->cmd.expire_total;
+ mark_reachable(cb);
}
+}
- for_each_reflog_ent(ref, expire_reflog_ent, &cb);
+static void reflog_expiry_cleanup(void *cb_data)
+{
+ struct expire_reflog_policy_cb *cb = cb_data;
- if (cb.unreachable_expire_kind != UE_ALWAYS) {
- if (cb.unreachable_expire_kind == UE_HEAD) {
+ if (cb->unreachable_expire_kind != UE_ALWAYS) {
+ if (cb->unreachable_expire_kind == UE_HEAD) {
struct commit_list *elem;
- for (elem = tips; elem; elem = elem->next)
- clear_commit_marks(tip_commit, REACHABLE);
- free_commit_list(tips);
- } else {
- clear_commit_marks(tip_commit, REACHABLE);
- }
- }
- finish:
- if (cb.newlog) {
- if (fclose(cb.newlog)) {
- status |= error("%s: %s", strerror(errno),
- newlog_path);
- unlink(newlog_path);
- } else if (cmd->updateref &&
- (write_in_full(lock->lock_fd,
- sha1_to_hex(cb.last_kept_sha1), 40) != 40 ||
- write_str_in_full(lock->lock_fd, "\n") != 1 ||
- close_ref(lock) < 0)) {
- status |= error("Couldn't write %s",
- lock->lk->filename);
- unlink(newlog_path);
- } else if (rename(newlog_path, log_file)) {
- status |= error("cannot rename %s to %s",
- newlog_path, log_file);
- unlink(newlog_path);
- } else if (cmd->updateref && commit_ref(lock)) {
- status |= error("Couldn't set %s", lock->ref_name);
+ for (elem = cb->tips; elem; elem = elem->next)
+ clear_commit_marks(elem->item, REACHABLE);
+ free_commit_list(cb->tips);
} else {
- adjust_shared_perm(log_file);
+ clear_commit_marks(cb->tip_commit, REACHABLE);
}
}
- free(newlog_path);
- free(log_file);
- unlock_ref(lock);
- return status;
}
-static int collect_reflog(const char *ref, const unsigned char *sha1, int unused, void *cb_data)
+static int collect_reflog(const char *ref, const struct object_id *oid, int unused, void *cb_data)
{
struct collected_reflog *e;
struct collect_reflog_cb *cb = cb_data;
size_t namelen = strlen(ref);
e = xmalloc(sizeof(*e) + namelen + 1);
- hashcpy(e->sha1, sha1);
+ hashcpy(e->sha1, oid->hash);
memcpy(e->reflog, ref, namelen + 1);
ALLOC_GROW(cb->e, cb->nr + 1, cb->alloc);
cb->e[cb->nr++] = e;
if (!value)
return config_error_nonbool(var);
if (parse_expiry_date(value, expire))
- return error(_("%s' for '%s' is not a valid timestamp"),
+ return error(_("'%s' for '%s' is not a valid timestamp"),
value, var);
return 0;
}
static int reflog_expire_config(const char *var, const char *value, void *cb)
{
- const char *lastdot = strrchr(var, '.');
+ const char *pattern, *key;
+ int pattern_len;
unsigned long expire;
int slot;
struct reflog_expire_cfg *ent;
- if (!lastdot || prefixcmp(var, "gc."))
+ if (parse_config_key(var, "gc", &pattern, &pattern_len, &key) < 0)
return git_default_config(var, value, cb);
- if (!strcmp(lastdot, ".reflogexpire")) {
+ if (!strcmp(key, "reflogexpire")) {
slot = EXPIRE_TOTAL;
if (parse_expire_cfg_value(var, value, &expire))
return -1;
- } else if (!strcmp(lastdot, ".reflogexpireunreachable")) {
+ } else if (!strcmp(key, "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) {
+ if (!pattern) {
switch (slot) {
case EXPIRE_TOTAL:
default_reflog_expire = expire;
return 0;
}
- ent = find_cfg_ent(var + 3, lastdot - (var+3));
+ ent = find_cfg_ent(pattern, pattern_len);
if (!ent)
return -1;
switch (slot) {
return; /* both given explicitly -- nothing to tweak */
for (ent = reflog_expire_cfg; ent; ent = ent->next) {
- if (!fnmatch(ent->pattern, ref, 0)) {
+ if (!wildmatch(ent->pattern, ref, 0, NULL)) {
if (!(slot & EXPIRE_TOTAL))
cb->expire_total = ent->expire_total;
if (!(slot & EXPIRE_UNREACH))
static int cmd_reflog_expire(int argc, const char **argv, const char *prefix)
{
- struct cmd_reflog_expire_cb cb;
+ struct expire_reflog_policy_cb cb;
unsigned long now = time(NULL);
int i, status, do_all;
int explicit_expiry = 0;
+ unsigned int flags = 0;
default_reflog_expire_unreachable = now - 30 * 24 * 3600;
default_reflog_expire = now - 90 * 24 * 3600;
do_all = status = 0;
memset(&cb, 0, sizeof(cb));
- cb.expire_total = default_reflog_expire;
- cb.expire_unreachable = default_reflog_expire_unreachable;
+ cb.cmd.expire_total = default_reflog_expire;
+ cb.cmd.expire_unreachable = default_reflog_expire_unreachable;
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=")) {
- if (parse_expiry_date(arg + 9, &cb.expire_total))
+ flags |= EXPIRE_REFLOGS_DRY_RUN;
+ else if (starts_with(arg, "--expire=")) {
+ if (parse_expiry_date(arg + 9, &cb.cmd.expire_total))
die(_("'%s' is not a valid timestamp"), arg);
explicit_expiry |= EXPIRE_TOTAL;
}
- else if (!prefixcmp(arg, "--expire-unreachable=")) {
- if (parse_expiry_date(arg + 21, &cb.expire_unreachable))
+ else if (starts_with(arg, "--expire-unreachable=")) {
+ if (parse_expiry_date(arg + 21, &cb.cmd.expire_unreachable))
die(_("'%s' is not a valid timestamp"), arg);
explicit_expiry |= EXPIRE_UNREACH;
}
else if (!strcmp(arg, "--stale-fix"))
- cb.stalefix = 1;
+ cb.cmd.stalefix = 1;
else if (!strcmp(arg, "--rewrite"))
- cb.rewrite = 1;
+ flags |= EXPIRE_REFLOGS_REWRITE;
else if (!strcmp(arg, "--updateref"))
- cb.updateref = 1;
+ flags |= EXPIRE_REFLOGS_UPDATE_REF;
else if (!strcmp(arg, "--all"))
do_all = 1;
else if (!strcmp(arg, "--verbose"))
- cb.verbose = 1;
+ flags |= EXPIRE_REFLOGS_VERBOSE;
else if (!strcmp(arg, "--")) {
i++;
break;
* 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)
+ if (cb.cmd.stalefix) {
+ init_revisions(&cb.cmd.revs, prefix);
+ if (flags & EXPIRE_REFLOGS_VERBOSE)
printf("Marking reachable objects...");
- mark_reachable_objects(&cb.revs, 0, NULL);
- if (cb.verbose)
+ mark_reachable_objects(&cb.cmd.revs, 0, 0, NULL);
+ if (flags & EXPIRE_REFLOGS_VERBOSE)
putchar('\n');
}
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);
+ set_reflog_expiry_param(&cb.cmd, explicit_expiry, e->reflog);
+ status |= reflog_expire(e->reflog, e->sha1, flags,
+ reflog_expiry_prepare,
+ should_expire_reflog_ent,
+ reflog_expiry_cleanup,
+ &cb);
free(e);
}
free(collected.e);
status |= error("%s points nowhere!", argv[i]);
continue;
}
- set_reflog_expiry_param(&cb, explicit_expiry, ref);
- status |= expire_reflog(ref, sha1, 0, &cb);
+ set_reflog_expiry_param(&cb.cmd, explicit_expiry, ref);
+ status |= reflog_expire(ref, sha1, flags,
+ reflog_expiry_prepare,
+ should_expire_reflog_ent,
+ reflog_expiry_cleanup,
+ &cb);
}
return status;
}
const char *email, unsigned long timestamp, int tz,
const char *message, void *cb_data)
{
- struct cmd_reflog_expire_cb *cb = cb_data;
- if (!cb->expire_total || timestamp < cb->expire_total)
- cb->recno++;
+ struct expire_reflog_policy_cb *cb = cb_data;
+ if (!cb->cmd.expire_total || timestamp < cb->cmd.expire_total)
+ cb->cmd.recno++;
return 0;
}
static int cmd_reflog_delete(int argc, const char **argv, const char *prefix)
{
- struct cmd_reflog_expire_cb cb;
+ struct expire_reflog_policy_cb cb;
int i, status = 0;
+ unsigned int flags = 0;
memset(&cb, 0, sizeof(cb));
for (i = 1; i < argc; i++) {
const char *arg = argv[i];
if (!strcmp(arg, "--dry-run") || !strcmp(arg, "-n"))
- cb.dry_run = 1;
+ flags |= EXPIRE_REFLOGS_DRY_RUN;
else if (!strcmp(arg, "--rewrite"))
- cb.rewrite = 1;
+ flags |= EXPIRE_REFLOGS_REWRITE;
else if (!strcmp(arg, "--updateref"))
- cb.updateref = 1;
+ flags |= EXPIRE_REFLOGS_UPDATE_REF;
else if (!strcmp(arg, "--verbose"))
- cb.verbose = 1;
+ flags |= EXPIRE_REFLOGS_VERBOSE;
else if (!strcmp(arg, "--")) {
i++;
break;
recno = strtoul(spec + 2, &ep, 10);
if (*ep == '}') {
- cb.recno = -recno;
+ cb.cmd.recno = -recno;
for_each_reflog_ent(ref, count_reflog_ent, &cb);
} else {
- cb.expire_total = approxidate(spec + 2);
+ cb.cmd.expire_total = approxidate(spec + 2);
for_each_reflog_ent(ref, count_reflog_ent, &cb);
- cb.expire_total = 0;
+ cb.cmd.expire_total = 0;
}
- status |= expire_reflog(ref, sha1, 0, &cb);
+ status |= reflog_expire(ref, sha1, flags,
+ reflog_expiry_prepare,
+ should_expire_reflog_ent,
+ reflog_expiry_cleanup,
+ &cb);
free(ref);
}
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)
{
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);
}