mirror of
https://github.com/git/git
synced 2024-08-28 12:09:19 +00:00
![Junio C Hamano](/assets/img/avatar_default.png)
"git rebase" learned "--rebase-merges" to transplant the whole topology of commit graph elsewhere. * js/rebase-recreate-merge: rebase -i --rebase-merges: add a section to the man page rebase -i: introduce --rebase-merges=[no-]rebase-cousins pull: accept --rebase=merges to recreate the branch topology rebase --rebase-merges: avoid "empty merges" sequencer: handle post-rewrite for merge commands sequencer: make refs generated by the `label` command worktree-local rebase --rebase-merges: add test for --keep-empty rebase: introduce the --rebase-merges option rebase-helper --make-script: introduce a flag to rebase merges sequencer: fast-forward `merge` commands, if possible sequencer: introduce the `merge` command sequencer: introduce new commands to reset the revision git-rebase--interactive: clarify arguments sequencer: offer helpful advice when a command was rescheduled sequencer: refactor how original todo list lines are accessed sequencer: make rearrange_squash() a bit more obvious sequencer: avoid using errno clobbered by rollback_lock_file()
2157 lines
53 KiB
C
2157 lines
53 KiB
C
/*
|
|
* The backend-independent part of the reference module.
|
|
*/
|
|
|
|
#include "cache.h"
|
|
#include "config.h"
|
|
#include "hashmap.h"
|
|
#include "lockfile.h"
|
|
#include "iterator.h"
|
|
#include "refs.h"
|
|
#include "refs/refs-internal.h"
|
|
#include "object.h"
|
|
#include "tag.h"
|
|
#include "submodule.h"
|
|
#include "worktree.h"
|
|
#include "argv-array.h"
|
|
#include "repository.h"
|
|
|
|
/*
|
|
* List of all available backends
|
|
*/
|
|
static struct ref_storage_be *refs_backends = &refs_be_files;
|
|
|
|
static struct ref_storage_be *find_ref_storage_backend(const char *name)
|
|
{
|
|
struct ref_storage_be *be;
|
|
for (be = refs_backends; be; be = be->next)
|
|
if (!strcmp(be->name, name))
|
|
return be;
|
|
return NULL;
|
|
}
|
|
|
|
int ref_storage_backend_exists(const char *name)
|
|
{
|
|
return find_ref_storage_backend(name) != NULL;
|
|
}
|
|
|
|
/*
|
|
* How to handle various characters in refnames:
|
|
* 0: An acceptable character for refs
|
|
* 1: End-of-component
|
|
* 2: ., look for a preceding . to reject .. in refs
|
|
* 3: {, look for a preceding @ to reject @{ in refs
|
|
* 4: A bad character: ASCII control characters, and
|
|
* ":", "?", "[", "\", "^", "~", SP, or TAB
|
|
* 5: *, reject unless REFNAME_REFSPEC_PATTERN is set
|
|
*/
|
|
static unsigned char refname_disposition[256] = {
|
|
1, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
|
|
4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
|
|
4, 0, 0, 0, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 2, 1,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 0, 0, 0, 0, 4,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 4, 4, 0, 4, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
|
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 4, 4
|
|
};
|
|
|
|
/*
|
|
* Try to read one refname component from the front of refname.
|
|
* Return the length of the component found, or -1 if the component is
|
|
* not legal. It is legal if it is something reasonable to have under
|
|
* ".git/refs/"; We do not like it if:
|
|
*
|
|
* - any path component of it begins with ".", or
|
|
* - it has double dots "..", or
|
|
* - it has ASCII control characters, or
|
|
* - it has ":", "?", "[", "\", "^", "~", SP, or TAB anywhere, or
|
|
* - it has "*" anywhere unless REFNAME_REFSPEC_PATTERN is set, or
|
|
* - it ends with a "/", or
|
|
* - it ends with ".lock", or
|
|
* - it contains a "@{" portion
|
|
*/
|
|
static int check_refname_component(const char *refname, int *flags)
|
|
{
|
|
const char *cp;
|
|
char last = '\0';
|
|
|
|
for (cp = refname; ; cp++) {
|
|
int ch = *cp & 255;
|
|
unsigned char disp = refname_disposition[ch];
|
|
switch (disp) {
|
|
case 1:
|
|
goto out;
|
|
case 2:
|
|
if (last == '.')
|
|
return -1; /* Refname contains "..". */
|
|
break;
|
|
case 3:
|
|
if (last == '@')
|
|
return -1; /* Refname contains "@{". */
|
|
break;
|
|
case 4:
|
|
return -1;
|
|
case 5:
|
|
if (!(*flags & REFNAME_REFSPEC_PATTERN))
|
|
return -1; /* refspec can't be a pattern */
|
|
|
|
/*
|
|
* Unset the pattern flag so that we only accept
|
|
* a single asterisk for one side of refspec.
|
|
*/
|
|
*flags &= ~ REFNAME_REFSPEC_PATTERN;
|
|
break;
|
|
}
|
|
last = ch;
|
|
}
|
|
out:
|
|
if (cp == refname)
|
|
return 0; /* Component has zero length. */
|
|
if (refname[0] == '.')
|
|
return -1; /* Component starts with '.'. */
|
|
if (cp - refname >= LOCK_SUFFIX_LEN &&
|
|
!memcmp(cp - LOCK_SUFFIX_LEN, LOCK_SUFFIX, LOCK_SUFFIX_LEN))
|
|
return -1; /* Refname ends with ".lock". */
|
|
return cp - refname;
|
|
}
|
|
|
|
int check_refname_format(const char *refname, int flags)
|
|
{
|
|
int component_len, component_count = 0;
|
|
|
|
if (!strcmp(refname, "@"))
|
|
/* Refname is a single character '@'. */
|
|
return -1;
|
|
|
|
while (1) {
|
|
/* We are at the start of a path component. */
|
|
component_len = check_refname_component(refname, &flags);
|
|
if (component_len <= 0)
|
|
return -1;
|
|
|
|
component_count++;
|
|
if (refname[component_len] == '\0')
|
|
break;
|
|
/* Skip to next component. */
|
|
refname += component_len + 1;
|
|
}
|
|
|
|
if (refname[component_len - 1] == '.')
|
|
return -1; /* Refname ends with '.'. */
|
|
if (!(flags & REFNAME_ALLOW_ONELEVEL) && component_count < 2)
|
|
return -1; /* Refname has only one component. */
|
|
return 0;
|
|
}
|
|
|
|
int refname_is_safe(const char *refname)
|
|
{
|
|
const char *rest;
|
|
|
|
if (skip_prefix(refname, "refs/", &rest)) {
|
|
char *buf;
|
|
int result;
|
|
size_t restlen = strlen(rest);
|
|
|
|
/* rest must not be empty, or start or end with "/" */
|
|
if (!restlen || *rest == '/' || rest[restlen - 1] == '/')
|
|
return 0;
|
|
|
|
/*
|
|
* Does the refname try to escape refs/?
|
|
* For example: refs/foo/../bar is safe but refs/foo/../../bar
|
|
* is not.
|
|
*/
|
|
buf = xmallocz(restlen);
|
|
result = !normalize_path_copy(buf, rest) && !strcmp(buf, rest);
|
|
free(buf);
|
|
return result;
|
|
}
|
|
|
|
do {
|
|
if (!isupper(*refname) && *refname != '_')
|
|
return 0;
|
|
refname++;
|
|
} while (*refname);
|
|
return 1;
|
|
}
|
|
|
|
/*
|
|
* Return true if refname, which has the specified oid and flags, can
|
|
* be resolved to an object in the database. If the referred-to object
|
|
* does not exist, emit a warning and return false.
|
|
*/
|
|
int ref_resolves_to_object(const char *refname,
|
|
const struct object_id *oid,
|
|
unsigned int flags)
|
|
{
|
|
if (flags & REF_ISBROKEN)
|
|
return 0;
|
|
if (!has_sha1_file(oid->hash)) {
|
|
error("%s does not point to a valid object!", refname);
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
char *refs_resolve_refdup(struct ref_store *refs,
|
|
const char *refname, int resolve_flags,
|
|
struct object_id *oid, int *flags)
|
|
{
|
|
const char *result;
|
|
|
|
result = refs_resolve_ref_unsafe(refs, refname, resolve_flags,
|
|
oid, flags);
|
|
return xstrdup_or_null(result);
|
|
}
|
|
|
|
char *resolve_refdup(const char *refname, int resolve_flags,
|
|
struct object_id *oid, int *flags)
|
|
{
|
|
return refs_resolve_refdup(get_main_ref_store(the_repository),
|
|
refname, resolve_flags,
|
|
oid, flags);
|
|
}
|
|
|
|
/* The argument to filter_refs */
|
|
struct ref_filter {
|
|
const char *pattern;
|
|
each_ref_fn *fn;
|
|
void *cb_data;
|
|
};
|
|
|
|
int refs_read_ref_full(struct ref_store *refs, const char *refname,
|
|
int resolve_flags, struct object_id *oid, int *flags)
|
|
{
|
|
if (refs_resolve_ref_unsafe(refs, refname, resolve_flags, oid, flags))
|
|
return 0;
|
|
return -1;
|
|
}
|
|
|
|
int read_ref_full(const char *refname, int resolve_flags, struct object_id *oid, int *flags)
|
|
{
|
|
return refs_read_ref_full(get_main_ref_store(the_repository), refname,
|
|
resolve_flags, oid, flags);
|
|
}
|
|
|
|
int read_ref(const char *refname, struct object_id *oid)
|
|
{
|
|
return read_ref_full(refname, RESOLVE_REF_READING, oid, NULL);
|
|
}
|
|
|
|
int ref_exists(const char *refname)
|
|
{
|
|
return !!resolve_ref_unsafe(refname, RESOLVE_REF_READING, NULL, NULL);
|
|
}
|
|
|
|
static int match_ref_pattern(const char *refname,
|
|
const struct string_list_item *item)
|
|
{
|
|
int matched = 0;
|
|
if (item->util == NULL) {
|
|
if (!wildmatch(item->string, refname, 0))
|
|
matched = 1;
|
|
} else {
|
|
const char *rest;
|
|
if (skip_prefix(refname, item->string, &rest) &&
|
|
(!*rest || *rest == '/'))
|
|
matched = 1;
|
|
}
|
|
return matched;
|
|
}
|
|
|
|
int ref_filter_match(const char *refname,
|
|
const struct string_list *include_patterns,
|
|
const struct string_list *exclude_patterns)
|
|
{
|
|
struct string_list_item *item;
|
|
|
|
if (exclude_patterns && exclude_patterns->nr) {
|
|
for_each_string_list_item(item, exclude_patterns) {
|
|
if (match_ref_pattern(refname, item))
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (include_patterns && include_patterns->nr) {
|
|
int found = 0;
|
|
for_each_string_list_item(item, include_patterns) {
|
|
if (match_ref_pattern(refname, item)) {
|
|
found = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!found)
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
static int filter_refs(const char *refname, const struct object_id *oid,
|
|
int flags, void *data)
|
|
{
|
|
struct ref_filter *filter = (struct ref_filter *)data;
|
|
|
|
if (wildmatch(filter->pattern, refname, 0))
|
|
return 0;
|
|
return filter->fn(refname, oid, flags, filter->cb_data);
|
|
}
|
|
|
|
enum peel_status peel_object(const struct object_id *name, struct object_id *oid)
|
|
{
|
|
struct object *o = lookup_unknown_object(name->hash);
|
|
|
|
if (o->type == OBJ_NONE) {
|
|
int type = oid_object_info(the_repository, name, NULL);
|
|
if (type < 0 || !object_as_type(o, type, 0))
|
|
return PEEL_INVALID;
|
|
}
|
|
|
|
if (o->type != OBJ_TAG)
|
|
return PEEL_NON_TAG;
|
|
|
|
o = deref_tag_noverify(o);
|
|
if (!o)
|
|
return PEEL_INVALID;
|
|
|
|
oidcpy(oid, &o->oid);
|
|
return PEEL_PEELED;
|
|
}
|
|
|
|
struct warn_if_dangling_data {
|
|
FILE *fp;
|
|
const char *refname;
|
|
const struct string_list *refnames;
|
|
const char *msg_fmt;
|
|
};
|
|
|
|
static int warn_if_dangling_symref(const char *refname, const struct object_id *oid,
|
|
int flags, void *cb_data)
|
|
{
|
|
struct warn_if_dangling_data *d = cb_data;
|
|
const char *resolves_to;
|
|
|
|
if (!(flags & REF_ISSYMREF))
|
|
return 0;
|
|
|
|
resolves_to = resolve_ref_unsafe(refname, 0, NULL, NULL);
|
|
if (!resolves_to
|
|
|| (d->refname
|
|
? strcmp(resolves_to, d->refname)
|
|
: !string_list_has_string(d->refnames, resolves_to))) {
|
|
return 0;
|
|
}
|
|
|
|
fprintf(d->fp, d->msg_fmt, refname);
|
|
fputc('\n', d->fp);
|
|
return 0;
|
|
}
|
|
|
|
void warn_dangling_symref(FILE *fp, const char *msg_fmt, const char *refname)
|
|
{
|
|
struct warn_if_dangling_data data;
|
|
|
|
data.fp = fp;
|
|
data.refname = refname;
|
|
data.refnames = NULL;
|
|
data.msg_fmt = msg_fmt;
|
|
for_each_rawref(warn_if_dangling_symref, &data);
|
|
}
|
|
|
|
void warn_dangling_symrefs(FILE *fp, const char *msg_fmt, const struct string_list *refnames)
|
|
{
|
|
struct warn_if_dangling_data data;
|
|
|
|
data.fp = fp;
|
|
data.refname = NULL;
|
|
data.refnames = refnames;
|
|
data.msg_fmt = msg_fmt;
|
|
for_each_rawref(warn_if_dangling_symref, &data);
|
|
}
|
|
|
|
int refs_for_each_tag_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data)
|
|
{
|
|
return refs_for_each_ref_in(refs, "refs/tags/", fn, cb_data);
|
|
}
|
|
|
|
int for_each_tag_ref(each_ref_fn fn, void *cb_data)
|
|
{
|
|
return refs_for_each_tag_ref(get_main_ref_store(the_repository), fn, cb_data);
|
|
}
|
|
|
|
int refs_for_each_branch_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data)
|
|
{
|
|
return refs_for_each_ref_in(refs, "refs/heads/", fn, cb_data);
|
|
}
|
|
|
|
int for_each_branch_ref(each_ref_fn fn, void *cb_data)
|
|
{
|
|
return refs_for_each_branch_ref(get_main_ref_store(the_repository), fn, cb_data);
|
|
}
|
|
|
|
int refs_for_each_remote_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data)
|
|
{
|
|
return refs_for_each_ref_in(refs, "refs/remotes/", fn, cb_data);
|
|
}
|
|
|
|
int for_each_remote_ref(each_ref_fn fn, void *cb_data)
|
|
{
|
|
return refs_for_each_remote_ref(get_main_ref_store(the_repository), fn, cb_data);
|
|
}
|
|
|
|
int head_ref_namespaced(each_ref_fn fn, void *cb_data)
|
|
{
|
|
struct strbuf buf = STRBUF_INIT;
|
|
int ret = 0;
|
|
struct object_id oid;
|
|
int flag;
|
|
|
|
strbuf_addf(&buf, "%sHEAD", get_git_namespace());
|
|
if (!read_ref_full(buf.buf, RESOLVE_REF_READING, &oid, &flag))
|
|
ret = fn(buf.buf, &oid, flag, cb_data);
|
|
strbuf_release(&buf);
|
|
|
|
return ret;
|
|
}
|
|
|
|
void normalize_glob_ref(struct string_list_item *item, const char *prefix,
|
|
const char *pattern)
|
|
{
|
|
struct strbuf normalized_pattern = STRBUF_INIT;
|
|
|
|
if (*pattern == '/')
|
|
BUG("pattern must not start with '/'");
|
|
|
|
if (prefix) {
|
|
strbuf_addstr(&normalized_pattern, prefix);
|
|
}
|
|
else if (!starts_with(pattern, "refs/"))
|
|
strbuf_addstr(&normalized_pattern, "refs/");
|
|
strbuf_addstr(&normalized_pattern, pattern);
|
|
strbuf_strip_suffix(&normalized_pattern, "/");
|
|
|
|
item->string = strbuf_detach(&normalized_pattern, NULL);
|
|
item->util = has_glob_specials(pattern) ? NULL : item->string;
|
|
strbuf_release(&normalized_pattern);
|
|
}
|
|
|
|
int for_each_glob_ref_in(each_ref_fn fn, const char *pattern,
|
|
const char *prefix, void *cb_data)
|
|
{
|
|
struct strbuf real_pattern = STRBUF_INIT;
|
|
struct ref_filter filter;
|
|
int ret;
|
|
|
|
if (!prefix && !starts_with(pattern, "refs/"))
|
|
strbuf_addstr(&real_pattern, "refs/");
|
|
else if (prefix)
|
|
strbuf_addstr(&real_pattern, prefix);
|
|
strbuf_addstr(&real_pattern, pattern);
|
|
|
|
if (!has_glob_specials(pattern)) {
|
|
/* Append implied '/' '*' if not present. */
|
|
strbuf_complete(&real_pattern, '/');
|
|
/* No need to check for '*', there is none. */
|
|
strbuf_addch(&real_pattern, '*');
|
|
}
|
|
|
|
filter.pattern = real_pattern.buf;
|
|
filter.fn = fn;
|
|
filter.cb_data = cb_data;
|
|
ret = for_each_ref(filter_refs, &filter);
|
|
|
|
strbuf_release(&real_pattern);
|
|
return ret;
|
|
}
|
|
|
|
int for_each_glob_ref(each_ref_fn fn, const char *pattern, void *cb_data)
|
|
{
|
|
return for_each_glob_ref_in(fn, pattern, NULL, cb_data);
|
|
}
|
|
|
|
const char *prettify_refname(const char *name)
|
|
{
|
|
if (skip_prefix(name, "refs/heads/", &name) ||
|
|
skip_prefix(name, "refs/tags/", &name) ||
|
|
skip_prefix(name, "refs/remotes/", &name))
|
|
; /* nothing */
|
|
return name;
|
|
}
|
|
|
|
static const char *ref_rev_parse_rules[] = {
|
|
"%.*s",
|
|
"refs/%.*s",
|
|
"refs/tags/%.*s",
|
|
"refs/heads/%.*s",
|
|
"refs/remotes/%.*s",
|
|
"refs/remotes/%.*s/HEAD",
|
|
NULL
|
|
};
|
|
|
|
int refname_match(const char *abbrev_name, const char *full_name)
|
|
{
|
|
const char **p;
|
|
const int abbrev_name_len = strlen(abbrev_name);
|
|
|
|
for (p = ref_rev_parse_rules; *p; p++) {
|
|
if (!strcmp(full_name, mkpath(*p, abbrev_name_len, abbrev_name))) {
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Given a 'prefix' expand it by the rules in 'ref_rev_parse_rules' and add
|
|
* the results to 'prefixes'
|
|
*/
|
|
void expand_ref_prefix(struct argv_array *prefixes, const char *prefix)
|
|
{
|
|
const char **p;
|
|
int len = strlen(prefix);
|
|
|
|
for (p = ref_rev_parse_rules; *p; p++)
|
|
argv_array_pushf(prefixes, *p, len, prefix);
|
|
}
|
|
|
|
/*
|
|
* *string and *len will only be substituted, and *string returned (for
|
|
* later free()ing) if the string passed in is a magic short-hand form
|
|
* to name a branch.
|
|
*/
|
|
static char *substitute_branch_name(const char **string, int *len)
|
|
{
|
|
struct strbuf buf = STRBUF_INIT;
|
|
int ret = interpret_branch_name(*string, *len, &buf, 0);
|
|
|
|
if (ret == *len) {
|
|
size_t size;
|
|
*string = strbuf_detach(&buf, &size);
|
|
*len = size;
|
|
return (char *)*string;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
int dwim_ref(const char *str, int len, struct object_id *oid, char **ref)
|
|
{
|
|
char *last_branch = substitute_branch_name(&str, &len);
|
|
int refs_found = expand_ref(str, len, oid, ref);
|
|
free(last_branch);
|
|
return refs_found;
|
|
}
|
|
|
|
int expand_ref(const char *str, int len, struct object_id *oid, char **ref)
|
|
{
|
|
const char **p, *r;
|
|
int refs_found = 0;
|
|
struct strbuf fullref = STRBUF_INIT;
|
|
|
|
*ref = NULL;
|
|
for (p = ref_rev_parse_rules; *p; p++) {
|
|
struct object_id oid_from_ref;
|
|
struct object_id *this_result;
|
|
int flag;
|
|
|
|
this_result = refs_found ? &oid_from_ref : oid;
|
|
strbuf_reset(&fullref);
|
|
strbuf_addf(&fullref, *p, len, str);
|
|
r = resolve_ref_unsafe(fullref.buf, RESOLVE_REF_READING,
|
|
this_result, &flag);
|
|
if (r) {
|
|
if (!refs_found++)
|
|
*ref = xstrdup(r);
|
|
if (!warn_ambiguous_refs)
|
|
break;
|
|
} else if ((flag & REF_ISSYMREF) && strcmp(fullref.buf, "HEAD")) {
|
|
warning("ignoring dangling symref %s.", fullref.buf);
|
|
} else if ((flag & REF_ISBROKEN) && strchr(fullref.buf, '/')) {
|
|
warning("ignoring broken ref %s.", fullref.buf);
|
|
}
|
|
}
|
|
strbuf_release(&fullref);
|
|
return refs_found;
|
|
}
|
|
|
|
int dwim_log(const char *str, int len, struct object_id *oid, char **log)
|
|
{
|
|
char *last_branch = substitute_branch_name(&str, &len);
|
|
const char **p;
|
|
int logs_found = 0;
|
|
struct strbuf path = STRBUF_INIT;
|
|
|
|
*log = NULL;
|
|
for (p = ref_rev_parse_rules; *p; p++) {
|
|
struct object_id hash;
|
|
const char *ref, *it;
|
|
|
|
strbuf_reset(&path);
|
|
strbuf_addf(&path, *p, len, str);
|
|
ref = resolve_ref_unsafe(path.buf, RESOLVE_REF_READING,
|
|
&hash, NULL);
|
|
if (!ref)
|
|
continue;
|
|
if (reflog_exists(path.buf))
|
|
it = path.buf;
|
|
else if (strcmp(ref, path.buf) && reflog_exists(ref))
|
|
it = ref;
|
|
else
|
|
continue;
|
|
if (!logs_found++) {
|
|
*log = xstrdup(it);
|
|
oidcpy(oid, &hash);
|
|
}
|
|
if (!warn_ambiguous_refs)
|
|
break;
|
|
}
|
|
strbuf_release(&path);
|
|
free(last_branch);
|
|
return logs_found;
|
|
}
|
|
|
|
static int is_per_worktree_ref(const char *refname)
|
|
{
|
|
return !strcmp(refname, "HEAD") ||
|
|
starts_with(refname, "refs/bisect/") ||
|
|
starts_with(refname, "refs/rewritten/");
|
|
}
|
|
|
|
static int is_pseudoref_syntax(const char *refname)
|
|
{
|
|
const char *c;
|
|
|
|
for (c = refname; *c; c++) {
|
|
if (!isupper(*c) && *c != '-' && *c != '_')
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
enum ref_type ref_type(const char *refname)
|
|
{
|
|
if (is_per_worktree_ref(refname))
|
|
return REF_TYPE_PER_WORKTREE;
|
|
if (is_pseudoref_syntax(refname))
|
|
return REF_TYPE_PSEUDOREF;
|
|
return REF_TYPE_NORMAL;
|
|
}
|
|
|
|
long get_files_ref_lock_timeout_ms(void)
|
|
{
|
|
static int configured = 0;
|
|
|
|
/* The default timeout is 100 ms: */
|
|
static int timeout_ms = 100;
|
|
|
|
if (!configured) {
|
|
git_config_get_int("core.filesreflocktimeout", &timeout_ms);
|
|
configured = 1;
|
|
}
|
|
|
|
return timeout_ms;
|
|
}
|
|
|
|
static int write_pseudoref(const char *pseudoref, const struct object_id *oid,
|
|
const struct object_id *old_oid, struct strbuf *err)
|
|
{
|
|
const char *filename;
|
|
int fd;
|
|
static struct lock_file lock;
|
|
struct strbuf buf = STRBUF_INIT;
|
|
int ret = -1;
|
|
|
|
if (!oid)
|
|
return 0;
|
|
|
|
strbuf_addf(&buf, "%s\n", oid_to_hex(oid));
|
|
|
|
filename = git_path("%s", pseudoref);
|
|
fd = hold_lock_file_for_update_timeout(&lock, filename,
|
|
LOCK_DIE_ON_ERROR,
|
|
get_files_ref_lock_timeout_ms());
|
|
if (fd < 0) {
|
|
strbuf_addf(err, "could not open '%s' for writing: %s",
|
|
filename, strerror(errno));
|
|
goto done;
|
|
}
|
|
|
|
if (old_oid) {
|
|
struct object_id actual_old_oid;
|
|
|
|
if (read_ref(pseudoref, &actual_old_oid))
|
|
die("could not read ref '%s'", pseudoref);
|
|
if (oidcmp(&actual_old_oid, old_oid)) {
|
|
strbuf_addf(err, "unexpected sha1 when writing '%s'", pseudoref);
|
|
rollback_lock_file(&lock);
|
|
goto done;
|
|
}
|
|
}
|
|
|
|
if (write_in_full(fd, buf.buf, buf.len) < 0) {
|
|
strbuf_addf(err, "could not write to '%s'", filename);
|
|
rollback_lock_file(&lock);
|
|
goto done;
|
|
}
|
|
|
|
commit_lock_file(&lock);
|
|
ret = 0;
|
|
done:
|
|
strbuf_release(&buf);
|
|
return ret;
|
|
}
|
|
|
|
static int delete_pseudoref(const char *pseudoref, const struct object_id *old_oid)
|
|
{
|
|
static struct lock_file lock;
|
|
const char *filename;
|
|
|
|
filename = git_path("%s", pseudoref);
|
|
|
|
if (old_oid && !is_null_oid(old_oid)) {
|
|
int fd;
|
|
struct object_id actual_old_oid;
|
|
|
|
fd = hold_lock_file_for_update_timeout(
|
|
&lock, filename, LOCK_DIE_ON_ERROR,
|
|
get_files_ref_lock_timeout_ms());
|
|
if (fd < 0)
|
|
die_errno(_("Could not open '%s' for writing"), filename);
|
|
if (read_ref(pseudoref, &actual_old_oid))
|
|
die("could not read ref '%s'", pseudoref);
|
|
if (oidcmp(&actual_old_oid, old_oid)) {
|
|
warning("Unexpected sha1 when deleting %s", pseudoref);
|
|
rollback_lock_file(&lock);
|
|
return -1;
|
|
}
|
|
|
|
unlink(filename);
|
|
rollback_lock_file(&lock);
|
|
} else {
|
|
unlink(filename);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int refs_delete_ref(struct ref_store *refs, const char *msg,
|
|
const char *refname,
|
|
const struct object_id *old_oid,
|
|
unsigned int flags)
|
|
{
|
|
struct ref_transaction *transaction;
|
|
struct strbuf err = STRBUF_INIT;
|
|
|
|
if (ref_type(refname) == REF_TYPE_PSEUDOREF) {
|
|
assert(refs == get_main_ref_store(the_repository));
|
|
return delete_pseudoref(refname, old_oid);
|
|
}
|
|
|
|
transaction = ref_store_transaction_begin(refs, &err);
|
|
if (!transaction ||
|
|
ref_transaction_delete(transaction, refname, old_oid,
|
|
flags, msg, &err) ||
|
|
ref_transaction_commit(transaction, &err)) {
|
|
error("%s", err.buf);
|
|
ref_transaction_free(transaction);
|
|
strbuf_release(&err);
|
|
return 1;
|
|
}
|
|
ref_transaction_free(transaction);
|
|
strbuf_release(&err);
|
|
return 0;
|
|
}
|
|
|
|
int delete_ref(const char *msg, const char *refname,
|
|
const struct object_id *old_oid, unsigned int flags)
|
|
{
|
|
return refs_delete_ref(get_main_ref_store(the_repository), msg, refname,
|
|
old_oid, flags);
|
|
}
|
|
|
|
int copy_reflog_msg(char *buf, const char *msg)
|
|
{
|
|
char *cp = buf;
|
|
char c;
|
|
int wasspace = 1;
|
|
|
|
*cp++ = '\t';
|
|
while ((c = *msg++)) {
|
|
if (wasspace && isspace(c))
|
|
continue;
|
|
wasspace = isspace(c);
|
|
if (wasspace)
|
|
c = ' ';
|
|
*cp++ = c;
|
|
}
|
|
while (buf < cp && isspace(cp[-1]))
|
|
cp--;
|
|
*cp++ = '\n';
|
|
return cp - buf;
|
|
}
|
|
|
|
int should_autocreate_reflog(const char *refname)
|
|
{
|
|
switch (log_all_ref_updates) {
|
|
case LOG_REFS_ALWAYS:
|
|
return 1;
|
|
case LOG_REFS_NORMAL:
|
|
return starts_with(refname, "refs/heads/") ||
|
|
starts_with(refname, "refs/remotes/") ||
|
|
starts_with(refname, "refs/notes/") ||
|
|
!strcmp(refname, "HEAD");
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
int is_branch(const char *refname)
|
|
{
|
|
return !strcmp(refname, "HEAD") || starts_with(refname, "refs/heads/");
|
|
}
|
|
|
|
struct read_ref_at_cb {
|
|
const char *refname;
|
|
timestamp_t at_time;
|
|
int cnt;
|
|
int reccnt;
|
|
struct object_id *oid;
|
|
int found_it;
|
|
|
|
struct object_id ooid;
|
|
struct object_id noid;
|
|
int tz;
|
|
timestamp_t date;
|
|
char **msg;
|
|
timestamp_t *cutoff_time;
|
|
int *cutoff_tz;
|
|
int *cutoff_cnt;
|
|
};
|
|
|
|
static int read_ref_at_ent(struct object_id *ooid, struct object_id *noid,
|
|
const char *email, timestamp_t timestamp, int tz,
|
|
const char *message, void *cb_data)
|
|
{
|
|
struct read_ref_at_cb *cb = cb_data;
|
|
|
|
cb->reccnt++;
|
|
cb->tz = tz;
|
|
cb->date = timestamp;
|
|
|
|
if (timestamp <= cb->at_time || cb->cnt == 0) {
|
|
if (cb->msg)
|
|
*cb->msg = xstrdup(message);
|
|
if (cb->cutoff_time)
|
|
*cb->cutoff_time = timestamp;
|
|
if (cb->cutoff_tz)
|
|
*cb->cutoff_tz = tz;
|
|
if (cb->cutoff_cnt)
|
|
*cb->cutoff_cnt = cb->reccnt - 1;
|
|
/*
|
|
* we have not yet updated cb->[n|o]oid so they still
|
|
* hold the values for the previous record.
|
|
*/
|
|
if (!is_null_oid(&cb->ooid)) {
|
|
oidcpy(cb->oid, noid);
|
|
if (oidcmp(&cb->ooid, noid))
|
|
warning("Log for ref %s has gap after %s.",
|
|
cb->refname, show_date(cb->date, cb->tz, DATE_MODE(RFC2822)));
|
|
}
|
|
else if (cb->date == cb->at_time)
|
|
oidcpy(cb->oid, noid);
|
|
else if (oidcmp(noid, cb->oid))
|
|
warning("Log for ref %s unexpectedly ended on %s.",
|
|
cb->refname, show_date(cb->date, cb->tz,
|
|
DATE_MODE(RFC2822)));
|
|
oidcpy(&cb->ooid, ooid);
|
|
oidcpy(&cb->noid, noid);
|
|
cb->found_it = 1;
|
|
return 1;
|
|
}
|
|
oidcpy(&cb->ooid, ooid);
|
|
oidcpy(&cb->noid, noid);
|
|
if (cb->cnt > 0)
|
|
cb->cnt--;
|
|
return 0;
|
|
}
|
|
|
|
static int read_ref_at_ent_oldest(struct object_id *ooid, struct object_id *noid,
|
|
const char *email, timestamp_t timestamp,
|
|
int tz, const char *message, void *cb_data)
|
|
{
|
|
struct read_ref_at_cb *cb = cb_data;
|
|
|
|
if (cb->msg)
|
|
*cb->msg = xstrdup(message);
|
|
if (cb->cutoff_time)
|
|
*cb->cutoff_time = timestamp;
|
|
if (cb->cutoff_tz)
|
|
*cb->cutoff_tz = tz;
|
|
if (cb->cutoff_cnt)
|
|
*cb->cutoff_cnt = cb->reccnt;
|
|
oidcpy(cb->oid, ooid);
|
|
if (is_null_oid(cb->oid))
|
|
oidcpy(cb->oid, noid);
|
|
/* We just want the first entry */
|
|
return 1;
|
|
}
|
|
|
|
int read_ref_at(const char *refname, unsigned int flags, timestamp_t at_time, int cnt,
|
|
struct object_id *oid, char **msg,
|
|
timestamp_t *cutoff_time, int *cutoff_tz, int *cutoff_cnt)
|
|
{
|
|
struct read_ref_at_cb cb;
|
|
|
|
memset(&cb, 0, sizeof(cb));
|
|
cb.refname = refname;
|
|
cb.at_time = at_time;
|
|
cb.cnt = cnt;
|
|
cb.msg = msg;
|
|
cb.cutoff_time = cutoff_time;
|
|
cb.cutoff_tz = cutoff_tz;
|
|
cb.cutoff_cnt = cutoff_cnt;
|
|
cb.oid = oid;
|
|
|
|
for_each_reflog_ent_reverse(refname, read_ref_at_ent, &cb);
|
|
|
|
if (!cb.reccnt) {
|
|
if (flags & GET_OID_QUIETLY)
|
|
exit(128);
|
|
else
|
|
die("Log for %s is empty.", refname);
|
|
}
|
|
if (cb.found_it)
|
|
return 0;
|
|
|
|
for_each_reflog_ent(refname, read_ref_at_ent_oldest, &cb);
|
|
|
|
return 1;
|
|
}
|
|
|
|
struct ref_transaction *ref_store_transaction_begin(struct ref_store *refs,
|
|
struct strbuf *err)
|
|
{
|
|
struct ref_transaction *tr;
|
|
assert(err);
|
|
|
|
tr = xcalloc(1, sizeof(struct ref_transaction));
|
|
tr->ref_store = refs;
|
|
return tr;
|
|
}
|
|
|
|
struct ref_transaction *ref_transaction_begin(struct strbuf *err)
|
|
{
|
|
return ref_store_transaction_begin(get_main_ref_store(the_repository), err);
|
|
}
|
|
|
|
void ref_transaction_free(struct ref_transaction *transaction)
|
|
{
|
|
size_t i;
|
|
|
|
if (!transaction)
|
|
return;
|
|
|
|
switch (transaction->state) {
|
|
case REF_TRANSACTION_OPEN:
|
|
case REF_TRANSACTION_CLOSED:
|
|
/* OK */
|
|
break;
|
|
case REF_TRANSACTION_PREPARED:
|
|
die("BUG: free called on a prepared reference transaction");
|
|
break;
|
|
default:
|
|
die("BUG: unexpected reference transaction state");
|
|
break;
|
|
}
|
|
|
|
for (i = 0; i < transaction->nr; i++) {
|
|
free(transaction->updates[i]->msg);
|
|
free(transaction->updates[i]);
|
|
}
|
|
free(transaction->updates);
|
|
free(transaction);
|
|
}
|
|
|
|
struct ref_update *ref_transaction_add_update(
|
|
struct ref_transaction *transaction,
|
|
const char *refname, unsigned int flags,
|
|
const struct object_id *new_oid,
|
|
const struct object_id *old_oid,
|
|
const char *msg)
|
|
{
|
|
struct ref_update *update;
|
|
|
|
if (transaction->state != REF_TRANSACTION_OPEN)
|
|
die("BUG: update called for transaction that is not open");
|
|
|
|
FLEX_ALLOC_STR(update, refname, refname);
|
|
ALLOC_GROW(transaction->updates, transaction->nr + 1, transaction->alloc);
|
|
transaction->updates[transaction->nr++] = update;
|
|
|
|
update->flags = flags;
|
|
|
|
if (flags & REF_HAVE_NEW)
|
|
oidcpy(&update->new_oid, new_oid);
|
|
if (flags & REF_HAVE_OLD)
|
|
oidcpy(&update->old_oid, old_oid);
|
|
update->msg = xstrdup_or_null(msg);
|
|
return update;
|
|
}
|
|
|
|
int ref_transaction_update(struct ref_transaction *transaction,
|
|
const char *refname,
|
|
const struct object_id *new_oid,
|
|
const struct object_id *old_oid,
|
|
unsigned int flags, const char *msg,
|
|
struct strbuf *err)
|
|
{
|
|
assert(err);
|
|
|
|
if ((new_oid && !is_null_oid(new_oid)) ?
|
|
check_refname_format(refname, REFNAME_ALLOW_ONELEVEL) :
|
|
!refname_is_safe(refname)) {
|
|
strbuf_addf(err, "refusing to update ref with bad name '%s'",
|
|
refname);
|
|
return -1;
|
|
}
|
|
|
|
if (flags & ~REF_TRANSACTION_UPDATE_ALLOWED_FLAGS)
|
|
BUG("illegal flags 0x%x passed to ref_transaction_update()", flags);
|
|
|
|
flags |= (new_oid ? REF_HAVE_NEW : 0) | (old_oid ? REF_HAVE_OLD : 0);
|
|
|
|
ref_transaction_add_update(transaction, refname, flags,
|
|
new_oid, old_oid, msg);
|
|
return 0;
|
|
}
|
|
|
|
int ref_transaction_create(struct ref_transaction *transaction,
|
|
const char *refname,
|
|
const struct object_id *new_oid,
|
|
unsigned int flags, const char *msg,
|
|
struct strbuf *err)
|
|
{
|
|
if (!new_oid || is_null_oid(new_oid))
|
|
die("BUG: create called without valid new_oid");
|
|
return ref_transaction_update(transaction, refname, new_oid,
|
|
&null_oid, flags, msg, err);
|
|
}
|
|
|
|
int ref_transaction_delete(struct ref_transaction *transaction,
|
|
const char *refname,
|
|
const struct object_id *old_oid,
|
|
unsigned int flags, const char *msg,
|
|
struct strbuf *err)
|
|
{
|
|
if (old_oid && is_null_oid(old_oid))
|
|
die("BUG: delete called with old_oid set to zeros");
|
|
return ref_transaction_update(transaction, refname,
|
|
&null_oid, old_oid,
|
|
flags, msg, err);
|
|
}
|
|
|
|
int ref_transaction_verify(struct ref_transaction *transaction,
|
|
const char *refname,
|
|
const struct object_id *old_oid,
|
|
unsigned int flags,
|
|
struct strbuf *err)
|
|
{
|
|
if (!old_oid)
|
|
die("BUG: verify called with old_oid set to NULL");
|
|
return ref_transaction_update(transaction, refname,
|
|
NULL, old_oid,
|
|
flags, NULL, err);
|
|
}
|
|
|
|
int refs_update_ref(struct ref_store *refs, const char *msg,
|
|
const char *refname, const struct object_id *new_oid,
|
|
const struct object_id *old_oid, unsigned int flags,
|
|
enum action_on_err onerr)
|
|
{
|
|
struct ref_transaction *t = NULL;
|
|
struct strbuf err = STRBUF_INIT;
|
|
int ret = 0;
|
|
|
|
if (ref_type(refname) == REF_TYPE_PSEUDOREF) {
|
|
assert(refs == get_main_ref_store(the_repository));
|
|
ret = write_pseudoref(refname, new_oid, old_oid, &err);
|
|
} else {
|
|
t = ref_store_transaction_begin(refs, &err);
|
|
if (!t ||
|
|
ref_transaction_update(t, refname, new_oid, old_oid,
|
|
flags, msg, &err) ||
|
|
ref_transaction_commit(t, &err)) {
|
|
ret = 1;
|
|
ref_transaction_free(t);
|
|
}
|
|
}
|
|
if (ret) {
|
|
const char *str = "update_ref failed for ref '%s': %s";
|
|
|
|
switch (onerr) {
|
|
case UPDATE_REFS_MSG_ON_ERR:
|
|
error(str, refname, err.buf);
|
|
break;
|
|
case UPDATE_REFS_DIE_ON_ERR:
|
|
die(str, refname, err.buf);
|
|
break;
|
|
case UPDATE_REFS_QUIET_ON_ERR:
|
|
break;
|
|
}
|
|
strbuf_release(&err);
|
|
return 1;
|
|
}
|
|
strbuf_release(&err);
|
|
if (t)
|
|
ref_transaction_free(t);
|
|
return 0;
|
|
}
|
|
|
|
int update_ref(const char *msg, const char *refname,
|
|
const struct object_id *new_oid,
|
|
const struct object_id *old_oid,
|
|
unsigned int flags, enum action_on_err onerr)
|
|
{
|
|
return refs_update_ref(get_main_ref_store(the_repository), msg, refname, new_oid,
|
|
old_oid, flags, onerr);
|
|
}
|
|
|
|
char *shorten_unambiguous_ref(const char *refname, int strict)
|
|
{
|
|
int i;
|
|
static char **scanf_fmts;
|
|
static int nr_rules;
|
|
char *short_name;
|
|
struct strbuf resolved_buf = STRBUF_INIT;
|
|
|
|
if (!nr_rules) {
|
|
/*
|
|
* Pre-generate scanf formats from ref_rev_parse_rules[].
|
|
* Generate a format suitable for scanf from a
|
|
* ref_rev_parse_rules rule by interpolating "%s" at the
|
|
* location of the "%.*s".
|
|
*/
|
|
size_t total_len = 0;
|
|
size_t offset = 0;
|
|
|
|
/* the rule list is NULL terminated, count them first */
|
|
for (nr_rules = 0; ref_rev_parse_rules[nr_rules]; nr_rules++)
|
|
/* -2 for strlen("%.*s") - strlen("%s"); +1 for NUL */
|
|
total_len += strlen(ref_rev_parse_rules[nr_rules]) - 2 + 1;
|
|
|
|
scanf_fmts = xmalloc(st_add(st_mult(sizeof(char *), nr_rules), total_len));
|
|
|
|
offset = 0;
|
|
for (i = 0; i < nr_rules; i++) {
|
|
assert(offset < total_len);
|
|
scanf_fmts[i] = (char *)&scanf_fmts[nr_rules] + offset;
|
|
offset += snprintf(scanf_fmts[i], total_len - offset,
|
|
ref_rev_parse_rules[i], 2, "%s") + 1;
|
|
}
|
|
}
|
|
|
|
/* bail out if there are no rules */
|
|
if (!nr_rules)
|
|
return xstrdup(refname);
|
|
|
|
/* buffer for scanf result, at most refname must fit */
|
|
short_name = xstrdup(refname);
|
|
|
|
/* skip first rule, it will always match */
|
|
for (i = nr_rules - 1; i > 0 ; --i) {
|
|
int j;
|
|
int rules_to_fail = i;
|
|
int short_name_len;
|
|
|
|
if (1 != sscanf(refname, scanf_fmts[i], short_name))
|
|
continue;
|
|
|
|
short_name_len = strlen(short_name);
|
|
|
|
/*
|
|
* in strict mode, all (except the matched one) rules
|
|
* must fail to resolve to a valid non-ambiguous ref
|
|
*/
|
|
if (strict)
|
|
rules_to_fail = nr_rules;
|
|
|
|
/*
|
|
* check if the short name resolves to a valid ref,
|
|
* but use only rules prior to the matched one
|
|
*/
|
|
for (j = 0; j < rules_to_fail; j++) {
|
|
const char *rule = ref_rev_parse_rules[j];
|
|
|
|
/* skip matched rule */
|
|
if (i == j)
|
|
continue;
|
|
|
|
/*
|
|
* the short name is ambiguous, if it resolves
|
|
* (with this previous rule) to a valid ref
|
|
* read_ref() returns 0 on success
|
|
*/
|
|
strbuf_reset(&resolved_buf);
|
|
strbuf_addf(&resolved_buf, rule,
|
|
short_name_len, short_name);
|
|
if (ref_exists(resolved_buf.buf))
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* short name is non-ambiguous if all previous rules
|
|
* haven't resolved to a valid ref
|
|
*/
|
|
if (j == rules_to_fail) {
|
|
strbuf_release(&resolved_buf);
|
|
return short_name;
|
|
}
|
|
}
|
|
|
|
strbuf_release(&resolved_buf);
|
|
free(short_name);
|
|
return xstrdup(refname);
|
|
}
|
|
|
|
static struct string_list *hide_refs;
|
|
|
|
int parse_hide_refs_config(const char *var, const char *value, const char *section)
|
|
{
|
|
const char *key;
|
|
if (!strcmp("transfer.hiderefs", var) ||
|
|
(!parse_config_key(var, section, NULL, NULL, &key) &&
|
|
!strcmp(key, "hiderefs"))) {
|
|
char *ref;
|
|
int len;
|
|
|
|
if (!value)
|
|
return config_error_nonbool(var);
|
|
ref = xstrdup(value);
|
|
len = strlen(ref);
|
|
while (len && ref[len - 1] == '/')
|
|
ref[--len] = '\0';
|
|
if (!hide_refs) {
|
|
hide_refs = xcalloc(1, sizeof(*hide_refs));
|
|
hide_refs->strdup_strings = 1;
|
|
}
|
|
string_list_append(hide_refs, ref);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int ref_is_hidden(const char *refname, const char *refname_full)
|
|
{
|
|
int i;
|
|
|
|
if (!hide_refs)
|
|
return 0;
|
|
for (i = hide_refs->nr - 1; i >= 0; i--) {
|
|
const char *match = hide_refs->items[i].string;
|
|
const char *subject;
|
|
int neg = 0;
|
|
const char *p;
|
|
|
|
if (*match == '!') {
|
|
neg = 1;
|
|
match++;
|
|
}
|
|
|
|
if (*match == '^') {
|
|
subject = refname_full;
|
|
match++;
|
|
} else {
|
|
subject = refname;
|
|
}
|
|
|
|
/* refname can be NULL when namespaces are used. */
|
|
if (subject &&
|
|
skip_prefix(subject, match, &p) &&
|
|
(!*p || *p == '/'))
|
|
return !neg;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
const char *find_descendant_ref(const char *dirname,
|
|
const struct string_list *extras,
|
|
const struct string_list *skip)
|
|
{
|
|
int pos;
|
|
|
|
if (!extras)
|
|
return NULL;
|
|
|
|
/*
|
|
* Look at the place where dirname would be inserted into
|
|
* extras. If there is an entry at that position that starts
|
|
* with dirname (remember, dirname includes the trailing
|
|
* slash) and is not in skip, then we have a conflict.
|
|
*/
|
|
for (pos = string_list_find_insert_index(extras, dirname, 0);
|
|
pos < extras->nr; pos++) {
|
|
const char *extra_refname = extras->items[pos].string;
|
|
|
|
if (!starts_with(extra_refname, dirname))
|
|
break;
|
|
|
|
if (!skip || !string_list_has_string(skip, extra_refname))
|
|
return extra_refname;
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
int refs_rename_ref_available(struct ref_store *refs,
|
|
const char *old_refname,
|
|
const char *new_refname)
|
|
{
|
|
struct string_list skip = STRING_LIST_INIT_NODUP;
|
|
struct strbuf err = STRBUF_INIT;
|
|
int ok;
|
|
|
|
string_list_insert(&skip, old_refname);
|
|
ok = !refs_verify_refname_available(refs, new_refname,
|
|
NULL, &skip, &err);
|
|
if (!ok)
|
|
error("%s", err.buf);
|
|
|
|
string_list_clear(&skip, 0);
|
|
strbuf_release(&err);
|
|
return ok;
|
|
}
|
|
|
|
int refs_head_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data)
|
|
{
|
|
struct object_id oid;
|
|
int flag;
|
|
|
|
if (!refs_read_ref_full(refs, "HEAD", RESOLVE_REF_READING,
|
|
&oid, &flag))
|
|
return fn("HEAD", &oid, flag, cb_data);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int head_ref(each_ref_fn fn, void *cb_data)
|
|
{
|
|
return refs_head_ref(get_main_ref_store(the_repository), fn, cb_data);
|
|
}
|
|
|
|
struct ref_iterator *refs_ref_iterator_begin(
|
|
struct ref_store *refs,
|
|
const char *prefix, int trim, int flags)
|
|
{
|
|
struct ref_iterator *iter;
|
|
|
|
if (ref_paranoia < 0)
|
|
ref_paranoia = git_env_bool("GIT_REF_PARANOIA", 0);
|
|
if (ref_paranoia)
|
|
flags |= DO_FOR_EACH_INCLUDE_BROKEN;
|
|
|
|
iter = refs->be->iterator_begin(refs, prefix, flags);
|
|
|
|
/*
|
|
* `iterator_begin()` already takes care of prefix, but we
|
|
* might need to do some trimming:
|
|
*/
|
|
if (trim)
|
|
iter = prefix_ref_iterator_begin(iter, "", trim);
|
|
|
|
/* Sanity check for subclasses: */
|
|
if (!iter->ordered)
|
|
BUG("reference iterator is not ordered");
|
|
|
|
return iter;
|
|
}
|
|
|
|
/*
|
|
* Call fn for each reference in the specified submodule for which the
|
|
* refname begins with prefix. If trim is non-zero, then trim that
|
|
* many characters off the beginning of each refname before passing
|
|
* the refname to fn. flags can be DO_FOR_EACH_INCLUDE_BROKEN to
|
|
* include broken references in the iteration. If fn ever returns a
|
|
* non-zero value, stop the iteration and return that value;
|
|
* otherwise, return 0.
|
|
*/
|
|
static int do_for_each_ref(struct ref_store *refs, const char *prefix,
|
|
each_ref_fn fn, int trim, int flags, void *cb_data)
|
|
{
|
|
struct ref_iterator *iter;
|
|
|
|
if (!refs)
|
|
return 0;
|
|
|
|
iter = refs_ref_iterator_begin(refs, prefix, trim, flags);
|
|
|
|
return do_for_each_ref_iterator(iter, fn, cb_data);
|
|
}
|
|
|
|
int refs_for_each_ref(struct ref_store *refs, each_ref_fn fn, void *cb_data)
|
|
{
|
|
return do_for_each_ref(refs, "", fn, 0, 0, cb_data);
|
|
}
|
|
|
|
int for_each_ref(each_ref_fn fn, void *cb_data)
|
|
{
|
|
return refs_for_each_ref(get_main_ref_store(the_repository), fn, cb_data);
|
|
}
|
|
|
|
int refs_for_each_ref_in(struct ref_store *refs, const char *prefix,
|
|
each_ref_fn fn, void *cb_data)
|
|
{
|
|
return do_for_each_ref(refs, prefix, fn, strlen(prefix), 0, cb_data);
|
|
}
|
|
|
|
int for_each_ref_in(const char *prefix, each_ref_fn fn, void *cb_data)
|
|
{
|
|
return refs_for_each_ref_in(get_main_ref_store(the_repository), prefix, fn, cb_data);
|
|
}
|
|
|
|
int for_each_fullref_in(const char *prefix, each_ref_fn fn, void *cb_data, unsigned int broken)
|
|
{
|
|
unsigned int flag = 0;
|
|
|
|
if (broken)
|
|
flag = DO_FOR_EACH_INCLUDE_BROKEN;
|
|
return do_for_each_ref(get_main_ref_store(the_repository),
|
|
prefix, fn, 0, flag, cb_data);
|
|
}
|
|
|
|
int refs_for_each_fullref_in(struct ref_store *refs, const char *prefix,
|
|
each_ref_fn fn, void *cb_data,
|
|
unsigned int broken)
|
|
{
|
|
unsigned int flag = 0;
|
|
|
|
if (broken)
|
|
flag = DO_FOR_EACH_INCLUDE_BROKEN;
|
|
return do_for_each_ref(refs, prefix, fn, 0, flag, cb_data);
|
|
}
|
|
|
|
int for_each_replace_ref(struct repository *r, each_ref_fn fn, void *cb_data)
|
|
{
|
|
return do_for_each_ref(get_main_ref_store(r),
|
|
git_replace_ref_base, fn,
|
|
strlen(git_replace_ref_base),
|
|
DO_FOR_EACH_INCLUDE_BROKEN, cb_data);
|
|
}
|
|
|
|
int for_each_namespaced_ref(each_ref_fn fn, void *cb_data)
|
|
{
|
|
struct strbuf buf = STRBUF_INIT;
|
|
int ret;
|
|
strbuf_addf(&buf, "%srefs/", get_git_namespace());
|
|
ret = do_for_each_ref(get_main_ref_store(the_repository),
|
|
buf.buf, fn, 0, 0, cb_data);
|
|
strbuf_release(&buf);
|
|
return ret;
|
|
}
|
|
|
|
int refs_for_each_rawref(struct ref_store *refs, each_ref_fn fn, void *cb_data)
|
|
{
|
|
return do_for_each_ref(refs, "", fn, 0,
|
|
DO_FOR_EACH_INCLUDE_BROKEN, cb_data);
|
|
}
|
|
|
|
int for_each_rawref(each_ref_fn fn, void *cb_data)
|
|
{
|
|
return refs_for_each_rawref(get_main_ref_store(the_repository), fn, cb_data);
|
|
}
|
|
|
|
int refs_read_raw_ref(struct ref_store *ref_store,
|
|
const char *refname, struct object_id *oid,
|
|
struct strbuf *referent, unsigned int *type)
|
|
{
|
|
return ref_store->be->read_raw_ref(ref_store, refname, oid, referent, type);
|
|
}
|
|
|
|
/* This function needs to return a meaningful errno on failure */
|
|
const char *refs_resolve_ref_unsafe(struct ref_store *refs,
|
|
const char *refname,
|
|
int resolve_flags,
|
|
struct object_id *oid, int *flags)
|
|
{
|
|
static struct strbuf sb_refname = STRBUF_INIT;
|
|
struct object_id unused_oid;
|
|
int unused_flags;
|
|
int symref_count;
|
|
|
|
if (!oid)
|
|
oid = &unused_oid;
|
|
if (!flags)
|
|
flags = &unused_flags;
|
|
|
|
*flags = 0;
|
|
|
|
if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) {
|
|
if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) ||
|
|
!refname_is_safe(refname)) {
|
|
errno = EINVAL;
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* dwim_ref() uses REF_ISBROKEN to distinguish between
|
|
* missing refs and refs that were present but invalid,
|
|
* to complain about the latter to stderr.
|
|
*
|
|
* We don't know whether the ref exists, so don't set
|
|
* REF_ISBROKEN yet.
|
|
*/
|
|
*flags |= REF_BAD_NAME;
|
|
}
|
|
|
|
for (symref_count = 0; symref_count < SYMREF_MAXDEPTH; symref_count++) {
|
|
unsigned int read_flags = 0;
|
|
|
|
if (refs_read_raw_ref(refs, refname,
|
|
oid, &sb_refname, &read_flags)) {
|
|
*flags |= read_flags;
|
|
|
|
/* In reading mode, refs must eventually resolve */
|
|
if (resolve_flags & RESOLVE_REF_READING)
|
|
return NULL;
|
|
|
|
/*
|
|
* Otherwise a missing ref is OK. But the files backend
|
|
* may show errors besides ENOENT if there are
|
|
* similarly-named refs.
|
|
*/
|
|
if (errno != ENOENT &&
|
|
errno != EISDIR &&
|
|
errno != ENOTDIR)
|
|
return NULL;
|
|
|
|
oidclr(oid);
|
|
if (*flags & REF_BAD_NAME)
|
|
*flags |= REF_ISBROKEN;
|
|
return refname;
|
|
}
|
|
|
|
*flags |= read_flags;
|
|
|
|
if (!(read_flags & REF_ISSYMREF)) {
|
|
if (*flags & REF_BAD_NAME) {
|
|
oidclr(oid);
|
|
*flags |= REF_ISBROKEN;
|
|
}
|
|
return refname;
|
|
}
|
|
|
|
refname = sb_refname.buf;
|
|
if (resolve_flags & RESOLVE_REF_NO_RECURSE) {
|
|
oidclr(oid);
|
|
return refname;
|
|
}
|
|
if (check_refname_format(refname, REFNAME_ALLOW_ONELEVEL)) {
|
|
if (!(resolve_flags & RESOLVE_REF_ALLOW_BAD_NAME) ||
|
|
!refname_is_safe(refname)) {
|
|
errno = EINVAL;
|
|
return NULL;
|
|
}
|
|
|
|
*flags |= REF_ISBROKEN | REF_BAD_NAME;
|
|
}
|
|
}
|
|
|
|
errno = ELOOP;
|
|
return NULL;
|
|
}
|
|
|
|
/* backend functions */
|
|
int refs_init_db(struct strbuf *err)
|
|
{
|
|
struct ref_store *refs = get_main_ref_store(the_repository);
|
|
|
|
return refs->be->init_db(refs, err);
|
|
}
|
|
|
|
const char *resolve_ref_unsafe(const char *refname, int resolve_flags,
|
|
struct object_id *oid, int *flags)
|
|
{
|
|
return refs_resolve_ref_unsafe(get_main_ref_store(the_repository), refname,
|
|
resolve_flags, oid, flags);
|
|
}
|
|
|
|
int resolve_gitlink_ref(const char *submodule, const char *refname,
|
|
struct object_id *oid)
|
|
{
|
|
struct ref_store *refs;
|
|
int flags;
|
|
|
|
refs = get_submodule_ref_store(submodule);
|
|
|
|
if (!refs)
|
|
return -1;
|
|
|
|
if (!refs_resolve_ref_unsafe(refs, refname, 0, oid, &flags) ||
|
|
is_null_oid(oid))
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
struct ref_store_hash_entry
|
|
{
|
|
struct hashmap_entry ent; /* must be the first member! */
|
|
|
|
struct ref_store *refs;
|
|
|
|
/* NUL-terminated identifier of the ref store: */
|
|
char name[FLEX_ARRAY];
|
|
};
|
|
|
|
static int ref_store_hash_cmp(const void *unused_cmp_data,
|
|
const void *entry, const void *entry_or_key,
|
|
const void *keydata)
|
|
{
|
|
const struct ref_store_hash_entry *e1 = entry, *e2 = entry_or_key;
|
|
const char *name = keydata ? keydata : e2->name;
|
|
|
|
return strcmp(e1->name, name);
|
|
}
|
|
|
|
static struct ref_store_hash_entry *alloc_ref_store_hash_entry(
|
|
const char *name, struct ref_store *refs)
|
|
{
|
|
struct ref_store_hash_entry *entry;
|
|
|
|
FLEX_ALLOC_STR(entry, name, name);
|
|
hashmap_entry_init(entry, strhash(name));
|
|
entry->refs = refs;
|
|
return entry;
|
|
}
|
|
|
|
/* A hashmap of ref_stores, stored by submodule name: */
|
|
static struct hashmap submodule_ref_stores;
|
|
|
|
/* A hashmap of ref_stores, stored by worktree id: */
|
|
static struct hashmap worktree_ref_stores;
|
|
|
|
/*
|
|
* Look up a ref store by name. If that ref_store hasn't been
|
|
* registered yet, return NULL.
|
|
*/
|
|
static struct ref_store *lookup_ref_store_map(struct hashmap *map,
|
|
const char *name)
|
|
{
|
|
struct ref_store_hash_entry *entry;
|
|
|
|
if (!map->tablesize)
|
|
/* It's initialized on demand in register_ref_store(). */
|
|
return NULL;
|
|
|
|
entry = hashmap_get_from_hash(map, strhash(name), name);
|
|
return entry ? entry->refs : NULL;
|
|
}
|
|
|
|
/*
|
|
* Create, record, and return a ref_store instance for the specified
|
|
* gitdir.
|
|
*/
|
|
static struct ref_store *ref_store_init(const char *gitdir,
|
|
unsigned int flags)
|
|
{
|
|
const char *be_name = "files";
|
|
struct ref_storage_be *be = find_ref_storage_backend(be_name);
|
|
struct ref_store *refs;
|
|
|
|
if (!be)
|
|
die("BUG: reference backend %s is unknown", be_name);
|
|
|
|
refs = be->init(gitdir, flags);
|
|
return refs;
|
|
}
|
|
|
|
struct ref_store *get_main_ref_store(struct repository *r)
|
|
{
|
|
if (r->refs)
|
|
return r->refs;
|
|
|
|
if (!r->gitdir)
|
|
BUG("attempting to get main_ref_store outside of repository");
|
|
|
|
r->refs = ref_store_init(r->gitdir, REF_STORE_ALL_CAPS);
|
|
return r->refs;
|
|
}
|
|
|
|
/*
|
|
* Associate a ref store with a name. It is a fatal error to call this
|
|
* function twice for the same name.
|
|
*/
|
|
static void register_ref_store_map(struct hashmap *map,
|
|
const char *type,
|
|
struct ref_store *refs,
|
|
const char *name)
|
|
{
|
|
if (!map->tablesize)
|
|
hashmap_init(map, ref_store_hash_cmp, NULL, 0);
|
|
|
|
if (hashmap_put(map, alloc_ref_store_hash_entry(name, refs)))
|
|
die("BUG: %s ref_store '%s' initialized twice", type, name);
|
|
}
|
|
|
|
struct ref_store *get_submodule_ref_store(const char *submodule)
|
|
{
|
|
struct strbuf submodule_sb = STRBUF_INIT;
|
|
struct ref_store *refs;
|
|
char *to_free = NULL;
|
|
size_t len;
|
|
|
|
if (!submodule)
|
|
return NULL;
|
|
|
|
len = strlen(submodule);
|
|
while (len && is_dir_sep(submodule[len - 1]))
|
|
len--;
|
|
if (!len)
|
|
return NULL;
|
|
|
|
if (submodule[len])
|
|
/* We need to strip off one or more trailing slashes */
|
|
submodule = to_free = xmemdupz(submodule, len);
|
|
|
|
refs = lookup_ref_store_map(&submodule_ref_stores, submodule);
|
|
if (refs)
|
|
goto done;
|
|
|
|
strbuf_addstr(&submodule_sb, submodule);
|
|
if (!is_nonbare_repository_dir(&submodule_sb))
|
|
goto done;
|
|
|
|
if (submodule_to_gitdir(&submodule_sb, submodule))
|
|
goto done;
|
|
|
|
/* assume that add_submodule_odb() has been called */
|
|
refs = ref_store_init(submodule_sb.buf,
|
|
REF_STORE_READ | REF_STORE_ODB);
|
|
register_ref_store_map(&submodule_ref_stores, "submodule",
|
|
refs, submodule);
|
|
|
|
done:
|
|
strbuf_release(&submodule_sb);
|
|
free(to_free);
|
|
|
|
return refs;
|
|
}
|
|
|
|
struct ref_store *get_worktree_ref_store(const struct worktree *wt)
|
|
{
|
|
struct ref_store *refs;
|
|
const char *id;
|
|
|
|
if (wt->is_current)
|
|
return get_main_ref_store(the_repository);
|
|
|
|
id = wt->id ? wt->id : "/";
|
|
refs = lookup_ref_store_map(&worktree_ref_stores, id);
|
|
if (refs)
|
|
return refs;
|
|
|
|
if (wt->id)
|
|
refs = ref_store_init(git_common_path("worktrees/%s", wt->id),
|
|
REF_STORE_ALL_CAPS);
|
|
else
|
|
refs = ref_store_init(get_git_common_dir(),
|
|
REF_STORE_ALL_CAPS);
|
|
|
|
if (refs)
|
|
register_ref_store_map(&worktree_ref_stores, "worktree",
|
|
refs, id);
|
|
return refs;
|
|
}
|
|
|
|
void base_ref_store_init(struct ref_store *refs,
|
|
const struct ref_storage_be *be)
|
|
{
|
|
refs->be = be;
|
|
}
|
|
|
|
/* backend functions */
|
|
int refs_pack_refs(struct ref_store *refs, unsigned int flags)
|
|
{
|
|
return refs->be->pack_refs(refs, flags);
|
|
}
|
|
|
|
int refs_peel_ref(struct ref_store *refs, const char *refname,
|
|
struct object_id *oid)
|
|
{
|
|
int flag;
|
|
struct object_id base;
|
|
|
|
if (current_ref_iter && current_ref_iter->refname == refname) {
|
|
struct object_id peeled;
|
|
|
|
if (ref_iterator_peel(current_ref_iter, &peeled))
|
|
return -1;
|
|
oidcpy(oid, &peeled);
|
|
return 0;
|
|
}
|
|
|
|
if (refs_read_ref_full(refs, refname,
|
|
RESOLVE_REF_READING, &base, &flag))
|
|
return -1;
|
|
|
|
return peel_object(&base, oid);
|
|
}
|
|
|
|
int peel_ref(const char *refname, struct object_id *oid)
|
|
{
|
|
return refs_peel_ref(get_main_ref_store(the_repository), refname, oid);
|
|
}
|
|
|
|
int refs_create_symref(struct ref_store *refs,
|
|
const char *ref_target,
|
|
const char *refs_heads_master,
|
|
const char *logmsg)
|
|
{
|
|
return refs->be->create_symref(refs, ref_target,
|
|
refs_heads_master,
|
|
logmsg);
|
|
}
|
|
|
|
int create_symref(const char *ref_target, const char *refs_heads_master,
|
|
const char *logmsg)
|
|
{
|
|
return refs_create_symref(get_main_ref_store(the_repository), ref_target,
|
|
refs_heads_master, logmsg);
|
|
}
|
|
|
|
int ref_update_reject_duplicates(struct string_list *refnames,
|
|
struct strbuf *err)
|
|
{
|
|
size_t i, n = refnames->nr;
|
|
|
|
assert(err);
|
|
|
|
for (i = 1; i < n; i++) {
|
|
int cmp = strcmp(refnames->items[i - 1].string,
|
|
refnames->items[i].string);
|
|
|
|
if (!cmp) {
|
|
strbuf_addf(err,
|
|
"multiple updates for ref '%s' not allowed.",
|
|
refnames->items[i].string);
|
|
return 1;
|
|
} else if (cmp > 0) {
|
|
die("BUG: ref_update_reject_duplicates() received unsorted list");
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int ref_transaction_prepare(struct ref_transaction *transaction,
|
|
struct strbuf *err)
|
|
{
|
|
struct ref_store *refs = transaction->ref_store;
|
|
|
|
switch (transaction->state) {
|
|
case REF_TRANSACTION_OPEN:
|
|
/* Good. */
|
|
break;
|
|
case REF_TRANSACTION_PREPARED:
|
|
die("BUG: prepare called twice on reference transaction");
|
|
break;
|
|
case REF_TRANSACTION_CLOSED:
|
|
die("BUG: prepare called on a closed reference transaction");
|
|
break;
|
|
default:
|
|
die("BUG: unexpected reference transaction state");
|
|
break;
|
|
}
|
|
|
|
if (getenv(GIT_QUARANTINE_ENVIRONMENT)) {
|
|
strbuf_addstr(err,
|
|
_("ref updates forbidden inside quarantine environment"));
|
|
return -1;
|
|
}
|
|
|
|
return refs->be->transaction_prepare(refs, transaction, err);
|
|
}
|
|
|
|
int ref_transaction_abort(struct ref_transaction *transaction,
|
|
struct strbuf *err)
|
|
{
|
|
struct ref_store *refs = transaction->ref_store;
|
|
int ret = 0;
|
|
|
|
switch (transaction->state) {
|
|
case REF_TRANSACTION_OPEN:
|
|
/* No need to abort explicitly. */
|
|
break;
|
|
case REF_TRANSACTION_PREPARED:
|
|
ret = refs->be->transaction_abort(refs, transaction, err);
|
|
break;
|
|
case REF_TRANSACTION_CLOSED:
|
|
die("BUG: abort called on a closed reference transaction");
|
|
break;
|
|
default:
|
|
die("BUG: unexpected reference transaction state");
|
|
break;
|
|
}
|
|
|
|
ref_transaction_free(transaction);
|
|
return ret;
|
|
}
|
|
|
|
int ref_transaction_commit(struct ref_transaction *transaction,
|
|
struct strbuf *err)
|
|
{
|
|
struct ref_store *refs = transaction->ref_store;
|
|
int ret;
|
|
|
|
switch (transaction->state) {
|
|
case REF_TRANSACTION_OPEN:
|
|
/* Need to prepare first. */
|
|
ret = ref_transaction_prepare(transaction, err);
|
|
if (ret)
|
|
return ret;
|
|
break;
|
|
case REF_TRANSACTION_PREPARED:
|
|
/* Fall through to finish. */
|
|
break;
|
|
case REF_TRANSACTION_CLOSED:
|
|
die("BUG: commit called on a closed reference transaction");
|
|
break;
|
|
default:
|
|
die("BUG: unexpected reference transaction state");
|
|
break;
|
|
}
|
|
|
|
return refs->be->transaction_finish(refs, transaction, err);
|
|
}
|
|
|
|
int refs_verify_refname_available(struct ref_store *refs,
|
|
const char *refname,
|
|
const struct string_list *extras,
|
|
const struct string_list *skip,
|
|
struct strbuf *err)
|
|
{
|
|
const char *slash;
|
|
const char *extra_refname;
|
|
struct strbuf dirname = STRBUF_INIT;
|
|
struct strbuf referent = STRBUF_INIT;
|
|
struct object_id oid;
|
|
unsigned int type;
|
|
struct ref_iterator *iter;
|
|
int ok;
|
|
int ret = -1;
|
|
|
|
/*
|
|
* For the sake of comments in this function, suppose that
|
|
* refname is "refs/foo/bar".
|
|
*/
|
|
|
|
assert(err);
|
|
|
|
strbuf_grow(&dirname, strlen(refname) + 1);
|
|
for (slash = strchr(refname, '/'); slash; slash = strchr(slash + 1, '/')) {
|
|
/* Expand dirname to the new prefix, not including the trailing slash: */
|
|
strbuf_add(&dirname, refname + dirname.len, slash - refname - dirname.len);
|
|
|
|
/*
|
|
* We are still at a leading dir of the refname (e.g.,
|
|
* "refs/foo"; if there is a reference with that name,
|
|
* it is a conflict, *unless* it is in skip.
|
|
*/
|
|
if (skip && string_list_has_string(skip, dirname.buf))
|
|
continue;
|
|
|
|
if (!refs_read_raw_ref(refs, dirname.buf, &oid, &referent, &type)) {
|
|
strbuf_addf(err, "'%s' exists; cannot create '%s'",
|
|
dirname.buf, refname);
|
|
goto cleanup;
|
|
}
|
|
|
|
if (extras && string_list_has_string(extras, dirname.buf)) {
|
|
strbuf_addf(err, "cannot process '%s' and '%s' at the same time",
|
|
refname, dirname.buf);
|
|
goto cleanup;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* We are at the leaf of our refname (e.g., "refs/foo/bar").
|
|
* There is no point in searching for a reference with that
|
|
* name, because a refname isn't considered to conflict with
|
|
* itself. But we still need to check for references whose
|
|
* names are in the "refs/foo/bar/" namespace, because they
|
|
* *do* conflict.
|
|
*/
|
|
strbuf_addstr(&dirname, refname + dirname.len);
|
|
strbuf_addch(&dirname, '/');
|
|
|
|
iter = refs_ref_iterator_begin(refs, dirname.buf, 0,
|
|
DO_FOR_EACH_INCLUDE_BROKEN);
|
|
while ((ok = ref_iterator_advance(iter)) == ITER_OK) {
|
|
if (skip &&
|
|
string_list_has_string(skip, iter->refname))
|
|
continue;
|
|
|
|
strbuf_addf(err, "'%s' exists; cannot create '%s'",
|
|
iter->refname, refname);
|
|
ref_iterator_abort(iter);
|
|
goto cleanup;
|
|
}
|
|
|
|
if (ok != ITER_DONE)
|
|
die("BUG: error while iterating over references");
|
|
|
|
extra_refname = find_descendant_ref(dirname.buf, extras, skip);
|
|
if (extra_refname)
|
|
strbuf_addf(err, "cannot process '%s' and '%s' at the same time",
|
|
refname, extra_refname);
|
|
else
|
|
ret = 0;
|
|
|
|
cleanup:
|
|
strbuf_release(&referent);
|
|
strbuf_release(&dirname);
|
|
return ret;
|
|
}
|
|
|
|
int refs_for_each_reflog(struct ref_store *refs, each_ref_fn fn, void *cb_data)
|
|
{
|
|
struct ref_iterator *iter;
|
|
|
|
iter = refs->be->reflog_iterator_begin(refs);
|
|
|
|
return do_for_each_ref_iterator(iter, fn, cb_data);
|
|
}
|
|
|
|
int for_each_reflog(each_ref_fn fn, void *cb_data)
|
|
{
|
|
return refs_for_each_reflog(get_main_ref_store(the_repository), fn, cb_data);
|
|
}
|
|
|
|
int refs_for_each_reflog_ent_reverse(struct ref_store *refs,
|
|
const char *refname,
|
|
each_reflog_ent_fn fn,
|
|
void *cb_data)
|
|
{
|
|
return refs->be->for_each_reflog_ent_reverse(refs, refname,
|
|
fn, cb_data);
|
|
}
|
|
|
|
int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn,
|
|
void *cb_data)
|
|
{
|
|
return refs_for_each_reflog_ent_reverse(get_main_ref_store(the_repository),
|
|
refname, fn, cb_data);
|
|
}
|
|
|
|
int refs_for_each_reflog_ent(struct ref_store *refs, const char *refname,
|
|
each_reflog_ent_fn fn, void *cb_data)
|
|
{
|
|
return refs->be->for_each_reflog_ent(refs, refname, fn, cb_data);
|
|
}
|
|
|
|
int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn,
|
|
void *cb_data)
|
|
{
|
|
return refs_for_each_reflog_ent(get_main_ref_store(the_repository), refname,
|
|
fn, cb_data);
|
|
}
|
|
|
|
int refs_reflog_exists(struct ref_store *refs, const char *refname)
|
|
{
|
|
return refs->be->reflog_exists(refs, refname);
|
|
}
|
|
|
|
int reflog_exists(const char *refname)
|
|
{
|
|
return refs_reflog_exists(get_main_ref_store(the_repository), refname);
|
|
}
|
|
|
|
int refs_create_reflog(struct ref_store *refs, const char *refname,
|
|
int force_create, struct strbuf *err)
|
|
{
|
|
return refs->be->create_reflog(refs, refname, force_create, err);
|
|
}
|
|
|
|
int safe_create_reflog(const char *refname, int force_create,
|
|
struct strbuf *err)
|
|
{
|
|
return refs_create_reflog(get_main_ref_store(the_repository), refname,
|
|
force_create, err);
|
|
}
|
|
|
|
int refs_delete_reflog(struct ref_store *refs, const char *refname)
|
|
{
|
|
return refs->be->delete_reflog(refs, refname);
|
|
}
|
|
|
|
int delete_reflog(const char *refname)
|
|
{
|
|
return refs_delete_reflog(get_main_ref_store(the_repository), refname);
|
|
}
|
|
|
|
int refs_reflog_expire(struct ref_store *refs,
|
|
const char *refname, const struct object_id *oid,
|
|
unsigned int flags,
|
|
reflog_expiry_prepare_fn prepare_fn,
|
|
reflog_expiry_should_prune_fn should_prune_fn,
|
|
reflog_expiry_cleanup_fn cleanup_fn,
|
|
void *policy_cb_data)
|
|
{
|
|
return refs->be->reflog_expire(refs, refname, oid, flags,
|
|
prepare_fn, should_prune_fn,
|
|
cleanup_fn, policy_cb_data);
|
|
}
|
|
|
|
int reflog_expire(const char *refname, const struct object_id *oid,
|
|
unsigned int flags,
|
|
reflog_expiry_prepare_fn prepare_fn,
|
|
reflog_expiry_should_prune_fn should_prune_fn,
|
|
reflog_expiry_cleanup_fn cleanup_fn,
|
|
void *policy_cb_data)
|
|
{
|
|
return refs_reflog_expire(get_main_ref_store(the_repository),
|
|
refname, oid, flags,
|
|
prepare_fn, should_prune_fn,
|
|
cleanup_fn, policy_cb_data);
|
|
}
|
|
|
|
int initial_ref_transaction_commit(struct ref_transaction *transaction,
|
|
struct strbuf *err)
|
|
{
|
|
struct ref_store *refs = transaction->ref_store;
|
|
|
|
return refs->be->initial_transaction_commit(refs, transaction, err);
|
|
}
|
|
|
|
int refs_delete_refs(struct ref_store *refs, const char *msg,
|
|
struct string_list *refnames, unsigned int flags)
|
|
{
|
|
return refs->be->delete_refs(refs, msg, refnames, flags);
|
|
}
|
|
|
|
int delete_refs(const char *msg, struct string_list *refnames,
|
|
unsigned int flags)
|
|
{
|
|
return refs_delete_refs(get_main_ref_store(the_repository), msg, refnames, flags);
|
|
}
|
|
|
|
int refs_rename_ref(struct ref_store *refs, const char *oldref,
|
|
const char *newref, const char *logmsg)
|
|
{
|
|
return refs->be->rename_ref(refs, oldref, newref, logmsg);
|
|
}
|
|
|
|
int rename_ref(const char *oldref, const char *newref, const char *logmsg)
|
|
{
|
|
return refs_rename_ref(get_main_ref_store(the_repository), oldref, newref, logmsg);
|
|
}
|
|
|
|
int refs_copy_existing_ref(struct ref_store *refs, const char *oldref,
|
|
const char *newref, const char *logmsg)
|
|
{
|
|
return refs->be->copy_ref(refs, oldref, newref, logmsg);
|
|
}
|
|
|
|
int copy_existing_ref(const char *oldref, const char *newref, const char *logmsg)
|
|
{
|
|
return refs_copy_existing_ref(get_main_ref_store(the_repository), oldref, newref, logmsg);
|
|
}
|