mirror of
https://github.com/git/git
synced 2024-08-28 20:20:07 +00:00
![Michael Haggerty](/assets/img/avatar_default.png)
Revamp the "git reflog" usage documentation in the manpage and the command help to match the current reality and improve its clarity: * Add documentation for some options that had been left out. * Group the subcommands and options more logically and move more common subcommands/options higher. * Improve some explanations. Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu> Reviewed-by: Stefan Beller <sbeller@google.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
728 lines
18 KiB
C
728 lines
18 KiB
C
#include "builtin.h"
|
|
#include "lockfile.h"
|
|
#include "commit.h"
|
|
#include "refs.h"
|
|
#include "dir.h"
|
|
#include "tree-walk.h"
|
|
#include "diff.h"
|
|
#include "revision.h"
|
|
#include "reachable.h"
|
|
|
|
/* NEEDSWORK: switch to using parse_options */
|
|
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 unsigned long default_reflog_expire;
|
|
static unsigned long default_reflog_expire_unreachable;
|
|
|
|
struct cmd_reflog_expire_cb {
|
|
struct rev_info revs;
|
|
int stalefix;
|
|
unsigned long expire_total;
|
|
unsigned long expire_unreachable;
|
|
int recno;
|
|
};
|
|
|
|
struct expire_reflog_policy_cb {
|
|
enum {
|
|
UE_NORMAL,
|
|
UE_ALWAYS,
|
|
UE_HEAD
|
|
} unreachable_expire_kind;
|
|
struct commit_list *mark_list;
|
|
unsigned long mark_limit;
|
|
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;
|
|
int nr;
|
|
};
|
|
|
|
#define INCOMPLETE (1u<<10)
|
|
#define STUDYING (1u<<11)
|
|
#define REACHABLE (1u<<12)
|
|
|
|
static int tree_is_complete(const unsigned char *sha1)
|
|
{
|
|
struct tree_desc desc;
|
|
struct name_entry entry;
|
|
int complete;
|
|
struct tree *tree;
|
|
|
|
tree = lookup_tree(sha1);
|
|
if (!tree)
|
|
return 0;
|
|
if (tree->object.flags & SEEN)
|
|
return 1;
|
|
if (tree->object.flags & INCOMPLETE)
|
|
return 0;
|
|
|
|
if (!tree->buffer) {
|
|
enum object_type type;
|
|
unsigned long size;
|
|
void *data = read_sha1_file(sha1, &type, &size);
|
|
if (!data) {
|
|
tree->object.flags |= INCOMPLETE;
|
|
return 0;
|
|
}
|
|
tree->buffer = data;
|
|
tree->size = size;
|
|
}
|
|
init_tree_desc(&desc, tree->buffer, tree->size);
|
|
complete = 1;
|
|
while (tree_entry(&desc, &entry)) {
|
|
if (!has_sha1_file(entry.sha1) ||
|
|
(S_ISDIR(entry.mode) && !tree_is_complete(entry.sha1))) {
|
|
tree->object.flags |= INCOMPLETE;
|
|
complete = 0;
|
|
}
|
|
}
|
|
free_tree_buffer(tree);
|
|
|
|
if (complete)
|
|
tree->object.flags |= SEEN;
|
|
return complete;
|
|
}
|
|
|
|
static int commit_is_complete(struct commit *commit)
|
|
{
|
|
struct object_array study;
|
|
struct object_array found;
|
|
int is_incomplete = 0;
|
|
int i;
|
|
|
|
/* early return */
|
|
if (commit->object.flags & SEEN)
|
|
return 1;
|
|
if (commit->object.flags & INCOMPLETE)
|
|
return 0;
|
|
/*
|
|
* Find all commits that are reachable and are not marked as
|
|
* SEEN. Then make sure the trees and blobs contained are
|
|
* complete. After that, mark these commits also as SEEN.
|
|
* If some of the objects that are needed to complete this
|
|
* commit are missing, mark this commit as INCOMPLETE.
|
|
*/
|
|
memset(&study, 0, sizeof(study));
|
|
memset(&found, 0, sizeof(found));
|
|
add_object_array(&commit->object, NULL, &study);
|
|
add_object_array(&commit->object, NULL, &found);
|
|
commit->object.flags |= STUDYING;
|
|
while (study.nr) {
|
|
struct commit *c;
|
|
struct commit_list *parent;
|
|
|
|
c = (struct commit *)study.objects[--study.nr].item;
|
|
if (!c->object.parsed && !parse_object(c->object.sha1))
|
|
c->object.flags |= INCOMPLETE;
|
|
|
|
if (c->object.flags & INCOMPLETE) {
|
|
is_incomplete = 1;
|
|
break;
|
|
}
|
|
else if (c->object.flags & SEEN)
|
|
continue;
|
|
for (parent = c->parents; parent; parent = parent->next) {
|
|
struct commit *p = parent->item;
|
|
if (p->object.flags & STUDYING)
|
|
continue;
|
|
p->object.flags |= STUDYING;
|
|
add_object_array(&p->object, NULL, &study);
|
|
add_object_array(&p->object, NULL, &found);
|
|
}
|
|
}
|
|
if (!is_incomplete) {
|
|
/*
|
|
* make sure all commits in "found" array have all the
|
|
* necessary objects.
|
|
*/
|
|
for (i = 0; i < found.nr; i++) {
|
|
struct commit *c =
|
|
(struct commit *)found.objects[i].item;
|
|
if (!tree_is_complete(c->tree->object.sha1)) {
|
|
is_incomplete = 1;
|
|
c->object.flags |= INCOMPLETE;
|
|
}
|
|
}
|
|
if (!is_incomplete) {
|
|
/* mark all found commits as complete, iow SEEN */
|
|
for (i = 0; i < found.nr; i++)
|
|
found.objects[i].item->flags |= SEEN;
|
|
}
|
|
}
|
|
/* clear flags from the objects we traversed */
|
|
for (i = 0; i < found.nr; i++)
|
|
found.objects[i].item->flags &= ~STUDYING;
|
|
if (is_incomplete)
|
|
commit->object.flags |= INCOMPLETE;
|
|
else {
|
|
/*
|
|
* If we come here, we have (1) traversed the ancestry chain
|
|
* from the "commit" until we reach SEEN commits (which are
|
|
* known to be complete), and (2) made sure that the commits
|
|
* encountered during the above traversal refer to trees that
|
|
* are complete. Which means that we know *all* the commits
|
|
* we have seen during this process are complete.
|
|
*/
|
|
for (i = 0; i < found.nr; i++)
|
|
found.objects[i].item->flags |= SEEN;
|
|
}
|
|
/* free object arrays */
|
|
free(study.objects);
|
|
free(found.objects);
|
|
return !is_incomplete;
|
|
}
|
|
|
|
static int keep_entry(struct commit **it, unsigned char *sha1)
|
|
{
|
|
struct commit *commit;
|
|
|
|
if (is_null_sha1(sha1))
|
|
return 1;
|
|
commit = lookup_commit_reference_gently(sha1, 1);
|
|
if (!commit)
|
|
return 0;
|
|
|
|
/*
|
|
* Make sure everything in this commit exists.
|
|
*
|
|
* We have walked all the objects reachable from the refs
|
|
* and cache earlier. The commits reachable by this commit
|
|
* must meet SEEN commits -- and then we should mark them as
|
|
* SEEN as well.
|
|
*/
|
|
if (!commit_is_complete(commit))
|
|
return 0;
|
|
*it = commit;
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Starting from commits in the cb->mark_list, mark commits that are
|
|
* reachable from them. Stop the traversal at commits older than
|
|
* 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_policy_cb *cb)
|
|
{
|
|
struct commit *commit;
|
|
struct commit_list *pending;
|
|
unsigned long expire_limit = cb->mark_limit;
|
|
struct commit_list *leftover = NULL;
|
|
|
|
for (pending = cb->mark_list; pending; pending = pending->next)
|
|
pending->item->object.flags &= ~REACHABLE;
|
|
|
|
pending = cb->mark_list;
|
|
while (pending) {
|
|
struct commit_list *entry = pending;
|
|
struct commit_list *parent;
|
|
pending = entry->next;
|
|
commit = entry->item;
|
|
free(entry);
|
|
if (commit->object.flags & REACHABLE)
|
|
continue;
|
|
if (parse_commit(commit))
|
|
continue;
|
|
commit->object.flags |= REACHABLE;
|
|
if (commit->date < expire_limit) {
|
|
commit_list_insert(commit, &leftover);
|
|
continue;
|
|
}
|
|
commit->object.flags |= REACHABLE;
|
|
parent = commit->parents;
|
|
while (parent) {
|
|
commit = parent->item;
|
|
parent = parent->next;
|
|
if (commit->object.flags & REACHABLE)
|
|
continue;
|
|
commit_list_insert(commit, &pending);
|
|
}
|
|
}
|
|
cb->mark_list = leftover;
|
|
}
|
|
|
|
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
|
|
* up using the supplied sha1.
|
|
*/
|
|
if (!commit) {
|
|
if (is_null_sha1(sha1))
|
|
return 0;
|
|
|
|
commit = lookup_commit_reference_gently(sha1, 1);
|
|
|
|
/* Not a commit -- keep it */
|
|
if (!commit)
|
|
return 0;
|
|
}
|
|
|
|
/* Reachable from the current ref? Don't prune. */
|
|
if (commit->object.flags & REACHABLE)
|
|
return 0;
|
|
|
|
if (cb->mark_list && cb->mark_limit) {
|
|
cb->mark_limit = 0; /* dig down to the root */
|
|
mark_reachable(cb);
|
|
}
|
|
|
|
return !(commit->object.flags & REACHABLE);
|
|
}
|
|
|
|
/*
|
|
* 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_policy_cb *cb = cb_data;
|
|
struct commit *old, *new;
|
|
|
|
if (timestamp < cb->cmd.expire_total)
|
|
return 1;
|
|
|
|
old = new = NULL;
|
|
if (cb->cmd.stalefix &&
|
|
(!keep_entry(&old, osha1) || !keep_entry(&new, nsha1)))
|
|
return 1;
|
|
|
|
if (timestamp < cb->cmd.expire_unreachable) {
|
|
if (cb->unreachable_expire_kind == UE_ALWAYS)
|
|
return 1;
|
|
if (unreachable(cb, old, osha1) || unreachable(cb, new, nsha1))
|
|
return 1;
|
|
}
|
|
|
|
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)
|
|
{
|
|
struct commit_list **list = cb_data;
|
|
struct commit *tip_commit;
|
|
if (flags & REF_ISSYMREF)
|
|
return 0;
|
|
tip_commit = lookup_commit_reference_gently(sha1, 1);
|
|
if (!tip_commit)
|
|
return 0;
|
|
commit_list_insert(tip_commit, list);
|
|
return 0;
|
|
}
|
|
|
|
static void reflog_expiry_prepare(const char *refname,
|
|
const unsigned char *sha1,
|
|
void *cb_data)
|
|
{
|
|
struct expire_reflog_policy_cb *cb = cb_data;
|
|
|
|
if (!cb->cmd.expire_unreachable || !strcmp(refname, "HEAD")) {
|
|
cb->tip_commit = NULL;
|
|
cb->unreachable_expire_kind = UE_HEAD;
|
|
} else {
|
|
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;
|
|
}
|
|
|
|
if (cb->cmd.expire_unreachable <= cb->cmd.expire_total)
|
|
cb->unreachable_expire_kind = UE_ALWAYS;
|
|
|
|
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, &cb->tips);
|
|
for (elem = cb->tips; elem; elem = elem->next)
|
|
commit_list_insert(elem->item, &cb->mark_list);
|
|
} else {
|
|
commit_list_insert(cb->tip_commit, &cb->mark_list);
|
|
}
|
|
cb->mark_limit = cb->cmd.expire_total;
|
|
mark_reachable(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) {
|
|
struct commit_list *elem;
|
|
for (elem = cb->tips; elem; elem = elem->next)
|
|
clear_commit_marks(elem->item, REACHABLE);
|
|
free_commit_list(cb->tips);
|
|
} else {
|
|
clear_commit_marks(cb->tip_commit, REACHABLE);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int collect_reflog(const char *ref, const unsigned char *sha1, 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);
|
|
memcpy(e->reflog, ref, namelen + 1);
|
|
ALLOC_GROW(cb->e, cb->nr + 1, cb->alloc);
|
|
cb->e[cb->nr++] = e;
|
|
return 0;
|
|
}
|
|
|
|
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)
|
|
{
|
|
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 (parse_expiry_date(value, expire))
|
|
return error(_("%s' for '%s' is not a valid timestamp"),
|
|
value, var);
|
|
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 *pattern, *key;
|
|
int pattern_len;
|
|
unsigned long expire;
|
|
int slot;
|
|
struct reflog_expire_cfg *ent;
|
|
|
|
if (parse_config_key(var, "gc", &pattern, &pattern_len, &key) < 0)
|
|
return git_default_config(var, value, cb);
|
|
|
|
if (!strcmp(key, "reflogexpire")) {
|
|
slot = EXPIRE_TOTAL;
|
|
if (parse_expire_cfg_value(var, value, &expire))
|
|
return -1;
|
|
} 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 (!pattern) {
|
|
switch (slot) {
|
|
case EXPIRE_TOTAL:
|
|
default_reflog_expire = expire;
|
|
break;
|
|
case EXPIRE_UNREACH:
|
|
default_reflog_expire_unreachable = expire;
|
|
break;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
ent = find_cfg_ent(pattern, pattern_len);
|
|
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 (!wildmatch(ent->pattern, ref, 0, NULL)) {
|
|
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)
|
|
{
|
|
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;
|
|
git_config(reflog_expire_config, NULL);
|
|
|
|
save_commit_buffer = 0;
|
|
do_all = status = 0;
|
|
memset(&cb, 0, sizeof(cb));
|
|
|
|
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"))
|
|
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 (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.cmd.stalefix = 1;
|
|
else if (!strcmp(arg, "--rewrite"))
|
|
flags |= EXPIRE_REFLOGS_REWRITE;
|
|
else if (!strcmp(arg, "--updateref"))
|
|
flags |= EXPIRE_REFLOGS_UPDATE_REF;
|
|
else if (!strcmp(arg, "--all"))
|
|
do_all = 1;
|
|
else if (!strcmp(arg, "--verbose"))
|
|
flags |= EXPIRE_REFLOGS_VERBOSE;
|
|
else if (!strcmp(arg, "--")) {
|
|
i++;
|
|
break;
|
|
}
|
|
else if (arg[0] == '-')
|
|
usage(reflog_expire_usage);
|
|
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.cmd.stalefix) {
|
|
init_revisions(&cb.cmd.revs, prefix);
|
|
if (flags & EXPIRE_REFLOGS_VERBOSE)
|
|
printf("Marking reachable objects...");
|
|
mark_reachable_objects(&cb.cmd.revs, 0, 0, NULL);
|
|
if (flags & EXPIRE_REFLOGS_VERBOSE)
|
|
putchar('\n');
|
|
}
|
|
|
|
if (do_all) {
|
|
struct collect_reflog_cb collected;
|
|
int i;
|
|
|
|
memset(&collected, 0, sizeof(collected));
|
|
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.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);
|
|
}
|
|
|
|
for (; i < argc; i++) {
|
|
char *ref;
|
|
unsigned char sha1[20];
|
|
if (!dwim_log(argv[i], strlen(argv[i]), sha1, &ref)) {
|
|
status |= error("%s points nowhere!", argv[i]);
|
|
continue;
|
|
}
|
|
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;
|
|
}
|
|
|
|
static int count_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_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 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"))
|
|
flags |= EXPIRE_REFLOGS_DRY_RUN;
|
|
else if (!strcmp(arg, "--rewrite"))
|
|
flags |= EXPIRE_REFLOGS_REWRITE;
|
|
else if (!strcmp(arg, "--updateref"))
|
|
flags |= EXPIRE_REFLOGS_UPDATE_REF;
|
|
else if (!strcmp(arg, "--verbose"))
|
|
flags |= EXPIRE_REFLOGS_VERBOSE;
|
|
else if (!strcmp(arg, "--")) {
|
|
i++;
|
|
break;
|
|
}
|
|
else if (arg[0] == '-')
|
|
usage(reflog_delete_usage);
|
|
else
|
|
break;
|
|
}
|
|
|
|
if (argc - i < 1)
|
|
return error("Nothing to delete?");
|
|
|
|
for ( ; i < argc; i++) {
|
|
const char *spec = strstr(argv[i], "@{");
|
|
unsigned char sha1[20];
|
|
char *ep, *ref;
|
|
int recno;
|
|
|
|
if (!spec) {
|
|
status |= error("Not a reflog: %s", argv[i]);
|
|
continue;
|
|
}
|
|
|
|
if (!dwim_log(argv[i], spec - argv[i], sha1, &ref)) {
|
|
status |= error("no reflog for '%s'", argv[i]);
|
|
continue;
|
|
}
|
|
|
|
recno = strtoul(spec + 2, &ep, 10);
|
|
if (*ep == '}') {
|
|
cb.cmd.recno = -recno;
|
|
for_each_reflog_ent(ref, count_reflog_ent, &cb);
|
|
} else {
|
|
cb.cmd.expire_total = approxidate(spec + 2);
|
|
for_each_reflog_ent(ref, count_reflog_ent, &cb);
|
|
cb.cmd.expire_total = 0;
|
|
}
|
|
|
|
status |= reflog_expire(ref, sha1, flags,
|
|
reflog_expiry_prepare,
|
|
should_expire_reflog_ent,
|
|
reflog_expiry_cleanup,
|
|
&cb);
|
|
free(ref);
|
|
}
|
|
return status;
|
|
}
|
|
|
|
/*
|
|
* main "reflog"
|
|
*/
|
|
|
|
static const char reflog_usage[] =
|
|
"git reflog [ show | expire | delete ]";
|
|
|
|
int cmd_reflog(int argc, const char **argv, const char *prefix)
|
|
{
|
|
if (argc > 1 && !strcmp(argv[1], "-h"))
|
|
usage(reflog_usage);
|
|
|
|
/* With no command, we default to showing it. */
|
|
if (argc < 2 || *argv[1] == '-')
|
|
return cmd_log_reflog(argc, argv, prefix);
|
|
|
|
if (!strcmp(argv[1], "show"))
|
|
return cmd_log_reflog(argc - 1, argv + 1, prefix);
|
|
|
|
if (!strcmp(argv[1], "expire"))
|
|
return cmd_reflog_expire(argc - 1, argv + 1, prefix);
|
|
|
|
if (!strcmp(argv[1], "delete"))
|
|
return cmd_reflog_delete(argc - 1, argv + 1, prefix);
|
|
|
|
return cmd_log_reflog(argc, argv, prefix);
|
|
}
|