#include "object.h"
#include "tag.h"
#include "dir.h"
+#include "string-list.h"
/*
* Make sure "ref" is something reasonable to have under ".git/refs/";
{
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);
static int ref_entry_cmp_sslice(const void *key_, const void *ent_)
{
- struct string_slice *key = (struct string_slice *)key_;
- struct ref_entry *ent = *(struct ref_entry **)ent_;
- int entlen = strlen(ent->name);
- int cmplen = key->len < entlen ? key->len : entlen;
- int cmp = memcmp(key->str, ent->name, cmplen);
+ const struct string_slice *key = key_;
+ const struct ref_entry *ent = *(const struct ref_entry * const *)ent_;
+ int cmp = strncmp(key->str, ent->name, key->len);
if (cmp)
return cmp;
- return key->len - entlen;
+ return '\0' - (unsigned char)ent->name[key->len];
}
/*
}
}
+/*
+ * Load all of the refs from the dir into our in-memory cache. The hard work
+ * of loading loose refs is done by get_ref_dir(), so we just need to recurse
+ * through all of the sub-directories. We do not even need to care about
+ * sorting, as traversal order does not matter to us.
+ */
+static void prime_ref_dir(struct ref_dir *dir)
+{
+ int i;
+ for (i = 0; i < dir->nr; i++) {
+ struct ref_entry *entry = dir->entries[i];
+ if (entry->flag & REF_DIR)
+ prime_ref_dir(get_ref_dir(entry));
+ }
+}
/*
* Return true iff refname1 and refname2 conflict with each other.
* Two reference names conflict if one of them exactly matches the
return 1;
}
+struct packed_ref_cache {
+ struct ref_entry *root;
+
+ /*
+ * Count of references to the data structure in this instance,
+ * including the pointer from ref_cache::packed if any. The
+ * data will not be freed as long as the reference count is
+ * nonzero.
+ */
+ unsigned int referrers;
+
+ /*
+ * Iff the packed-refs file associated with this instance is
+ * currently locked for writing, this points at the associated
+ * lock (which is owned by somebody else). The referrer count
+ * is also incremented when the file is locked and decremented
+ * when it is unlocked.
+ */
+ struct lock_file *lock;
+
+ /* The metadata from when this packed-refs cache was read */
+ struct stat_validity validity;
+};
+
/*
* Future: need to be in "struct repository"
* when doing a full libification.
static struct ref_cache {
struct ref_cache *next;
struct ref_entry *loose;
- struct ref_entry *packed;
+ struct packed_ref_cache *packed;
/*
* The submodule name, or "" for the main repo. We allocate
* length 1 rather than FLEX_ARRAY so that the main ref_cache
char name[1];
} ref_cache, *submodule_ref_caches;
+/* Lock used for the main packed-refs file: */
+static struct lock_file packlock;
+
+/*
+ * Increment the reference count of *packed_refs.
+ */
+static void acquire_packed_ref_cache(struct packed_ref_cache *packed_refs)
+{
+ packed_refs->referrers++;
+}
+
+/*
+ * Decrease the reference count of *packed_refs. If it goes to zero,
+ * free *packed_refs and return true; otherwise return false.
+ */
+static int release_packed_ref_cache(struct packed_ref_cache *packed_refs)
+{
+ if (!--packed_refs->referrers) {
+ free_ref_entry(packed_refs->root);
+ stat_validity_clear(&packed_refs->validity);
+ free(packed_refs);
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
static void clear_packed_ref_cache(struct ref_cache *refs)
{
if (refs->packed) {
- free_ref_entry(refs->packed);
+ struct packed_ref_cache *packed_refs = refs->packed;
+
+ if (packed_refs->lock)
+ die("internal error: packed-ref cache cleared while locked");
refs->packed = NULL;
+ release_packed_ref_cache(packed_refs);
}
}
}
}
-static struct ref_dir *get_packed_refs(struct ref_cache *refs)
+/*
+ * Get the packed_ref_cache for the specified ref_cache, creating it
+ * if necessary.
+ */
+static struct packed_ref_cache *get_packed_ref_cache(struct ref_cache *refs)
{
+ const char *packed_refs_file;
+
+ if (*refs->name)
+ packed_refs_file = git_path_submodule(refs->name, "packed-refs");
+ else
+ packed_refs_file = git_path("packed-refs");
+
+ if (refs->packed &&
+ !stat_validity_check(&refs->packed->validity, packed_refs_file))
+ clear_packed_ref_cache(refs);
+
if (!refs->packed) {
- const char *packed_refs_file;
FILE *f;
- refs->packed = create_dir_entry(refs, "", 0, 0);
- if (*refs->name)
- packed_refs_file = git_path_submodule(refs->name, "packed-refs");
- else
- packed_refs_file = git_path("packed-refs");
+ refs->packed = xcalloc(1, sizeof(*refs->packed));
+ acquire_packed_ref_cache(refs->packed);
+ refs->packed->root = create_dir_entry(refs, "", 0, 0);
f = fopen(packed_refs_file, "r");
if (f) {
- read_packed_refs(f, get_ref_dir(refs->packed));
+ stat_validity_update(&refs->packed->validity, fileno(f));
+ read_packed_refs(f, get_ref_dir(refs->packed->root));
fclose(f);
}
}
- return get_ref_dir(refs->packed);
+ return refs->packed;
+}
+
+static struct ref_dir *get_packed_ref_dir(struct packed_ref_cache *packed_ref_cache)
+{
+ return get_ref_dir(packed_ref_cache->root);
+}
+
+static struct ref_dir *get_packed_refs(struct ref_cache *refs)
+{
+ return get_packed_ref_dir(get_packed_ref_cache(refs));
}
void add_packed_ref(const char *refname, const unsigned char *sha1)
{
- add_ref(get_packed_refs(&ref_cache),
+ struct packed_ref_cache *packed_ref_cache =
+ get_packed_ref_cache(&ref_cache);
+
+ if (!packed_ref_cache->lock)
+ die("internal error: packed refs not locked");
+ add_ref(get_packed_ref_dir(packed_ref_cache),
create_ref_entry(refname, sha1, REF_ISPACKED, 1));
}
static int do_for_each_entry(struct ref_cache *refs, const char *base,
each_ref_entry_fn fn, void *cb_data)
{
- struct ref_dir *packed_dir = get_packed_refs(refs);
- struct ref_dir *loose_dir = get_loose_refs(refs);
+ struct packed_ref_cache *packed_ref_cache;
+ struct ref_dir *loose_dir;
+ struct ref_dir *packed_dir;
int retval = 0;
+ /*
+ * We must make sure that all loose refs are read before accessing the
+ * packed-refs file; this avoids a race condition in which loose refs
+ * are migrated to the packed-refs file by a simultaneous process, but
+ * our in-memory view is from before the migration. get_packed_ref_cache()
+ * takes care of making sure our view is up to date with what is on
+ * disk.
+ */
+ loose_dir = get_loose_refs(refs);
if (base && *base) {
- packed_dir = find_containing_dir(packed_dir, base, 0);
loose_dir = find_containing_dir(loose_dir, base, 0);
}
+ if (loose_dir)
+ prime_ref_dir(loose_dir);
+
+ packed_ref_cache = get_packed_ref_cache(refs);
+ acquire_packed_ref_cache(packed_ref_cache);
+ packed_dir = get_packed_ref_dir(packed_ref_cache);
+ if (base && *base) {
+ packed_dir = find_containing_dir(packed_dir, base, 0);
+ }
if (packed_dir && loose_dir) {
sort_ref_dir(packed_dir);
loose_dir, 0, fn, cb_data);
}
+ release_packed_ref_cache(packed_ref_cache);
return retval;
}
}
}
+/*
+ * An each_ref_entry_fn that writes the entry to a packed-refs file.
+ */
+static int write_packed_entry_fn(struct ref_entry *entry, void *cb_data)
+{
+ int *fd = cb_data;
+ enum peel_status peel_status = peel_entry(entry, 0);
+
+ if (peel_status != PEEL_PEELED && peel_status != PEEL_NON_TAG)
+ error("internal error: %s is not a valid packed reference!",
+ entry->name);
+ write_packed_entry(*fd, entry->name, entry->u.value.sha1,
+ peel_status == PEEL_PEELED ?
+ entry->u.value.peeled : NULL);
+ return 0;
+}
+
+int lock_packed_refs(int flags)
+{
+ struct packed_ref_cache *packed_ref_cache;
+
+ /* Discard the old cache because it might be invalid: */
+ clear_packed_ref_cache(&ref_cache);
+ if (hold_lock_file_for_update(&packlock, git_path("packed-refs"), flags) < 0)
+ return -1;
+ /* Read the current packed-refs while holding the lock: */
+ packed_ref_cache = get_packed_ref_cache(&ref_cache);
+ packed_ref_cache->lock = &packlock;
+ /* Increment the reference count to prevent it from being freed: */
+ acquire_packed_ref_cache(packed_ref_cache);
+ return 0;
+}
+
+int commit_packed_refs(void)
+{
+ struct packed_ref_cache *packed_ref_cache =
+ get_packed_ref_cache(&ref_cache);
+ int error = 0;
+
+ if (!packed_ref_cache->lock)
+ die("internal error: packed-refs not locked");
+ write_or_die(packed_ref_cache->lock->fd,
+ PACKED_REFS_HEADER, strlen(PACKED_REFS_HEADER));
+
+ do_for_each_entry_in_dir(get_packed_ref_dir(packed_ref_cache),
+ 0, write_packed_entry_fn,
+ &packed_ref_cache->lock->fd);
+ if (commit_lock_file(packed_ref_cache->lock))
+ error = -1;
+ packed_ref_cache->lock = NULL;
+ release_packed_ref_cache(packed_ref_cache);
+ return error;
+}
+
+void rollback_packed_refs(void)
+{
+ struct packed_ref_cache *packed_ref_cache =
+ get_packed_ref_cache(&ref_cache);
+
+ if (!packed_ref_cache->lock)
+ die("internal error: packed-refs not locked");
+ rollback_lock_file(packed_ref_cache->lock);
+ packed_ref_cache->lock = NULL;
+ release_packed_ref_cache(packed_ref_cache);
+ clear_packed_ref_cache(&ref_cache);
+}
+
struct ref_to_prune {
struct ref_to_prune *next;
unsigned char sha1[20];
struct pack_refs_cb_data {
unsigned int flags;
+ struct ref_dir *packed_refs;
struct ref_to_prune *ref_to_prune;
- int fd;
};
-static int pack_one_ref(struct ref_entry *entry, void *cb_data)
+/*
+ * An each_ref_entry_fn that is run over loose references only. If
+ * the loose reference can be packed, add an entry in the packed ref
+ * cache. If the reference should be pruned, also add it to
+ * ref_to_prune in the pack_refs_cb_data.
+ */
+static int pack_if_possible_fn(struct ref_entry *entry, void *cb_data)
{
struct pack_refs_cb_data *cb = cb_data;
enum peel_status peel_status;
+ struct ref_entry *packed_entry;
int is_tag_ref = !prefixcmp(entry->name, "refs/tags/");
- /* ALWAYS pack refs that were already packed or are tags */
- if (!(cb->flags & PACK_REFS_ALL) && !is_tag_ref &&
- !(entry->flag & REF_ISPACKED))
+ /* ALWAYS pack tags */
+ if (!(cb->flags & PACK_REFS_ALL) && !is_tag_ref)
return 0;
/* Do not pack symbolic or broken refs: */
if ((entry->flag & REF_ISSYMREF) || !ref_resolves_to_object(entry))
return 0;
+ /* Add a packed ref cache entry equivalent to the loose entry. */
peel_status = peel_entry(entry, 1);
if (peel_status != PEEL_PEELED && peel_status != PEEL_NON_TAG)
die("internal error peeling reference %s (%s)",
entry->name, sha1_to_hex(entry->u.value.sha1));
- write_packed_entry(cb->fd, entry->name, entry->u.value.sha1,
- peel_status == PEEL_PEELED ?
- entry->u.value.peeled : NULL);
+ packed_entry = find_ref(cb->packed_refs, entry->name);
+ if (packed_entry) {
+ /* Overwrite existing packed entry with info from loose entry */
+ packed_entry->flag = REF_ISPACKED | REF_KNOWS_PEELED;
+ hashcpy(packed_entry->u.value.sha1, entry->u.value.sha1);
+ } else {
+ packed_entry = create_ref_entry(entry->name, entry->u.value.sha1,
+ REF_ISPACKED | REF_KNOWS_PEELED, 0);
+ add_ref(cb->packed_refs, packed_entry);
+ }
+ hashcpy(packed_entry->u.value.peeled, entry->u.value.peeled);
- /* If the ref was already packed, there is no need to prune it. */
- if ((cb->flags & PACK_REFS_PRUNE) && !(entry->flag & REF_ISPACKED)) {
+ /* Schedule the loose reference for pruning if requested. */
+ if ((cb->flags & PACK_REFS_PRUNE)) {
int namelen = strlen(entry->name) + 1;
struct ref_to_prune *n = xcalloc(1, sizeof(*n) + namelen);
hashcpy(n->sha1, entry->u.value.sha1);
}
}
-static struct lock_file packlock;
-
int pack_refs(unsigned int flags)
{
struct pack_refs_cb_data cbdata;
memset(&cbdata, 0, sizeof(cbdata));
cbdata.flags = flags;
- cbdata.fd = hold_lock_file_for_update(&packlock, git_path("packed-refs"),
- LOCK_DIE_ON_ERROR);
+ lock_packed_refs(LOCK_DIE_ON_ERROR);
+ cbdata.packed_refs = get_packed_refs(&ref_cache);
- write_or_die(cbdata.fd, PACKED_REFS_HEADER, strlen(PACKED_REFS_HEADER));
+ do_for_each_entry_in_dir(get_loose_refs(&ref_cache), 0,
+ pack_if_possible_fn, &cbdata);
- do_for_each_entry(&ref_cache, "", pack_one_ref, &cbdata);
- if (commit_lock_file(&packlock) < 0)
+ if (commit_packed_refs())
die_errno("unable to overwrite old ref-pack file");
+
prune_refs(cbdata.ref_to_prune);
return 0;
}
-static int repack_ref_fn(struct ref_entry *entry, void *cb_data)
+/*
+ * If entry is no longer needed in packed-refs, add it to the string
+ * list pointed to by cb_data. Reasons for deleting entries:
+ *
+ * - Entry is broken.
+ * - Entry is overridden by a loose ref.
+ * - Entry does not point at a valid object.
+ *
+ * In the first and third cases, also emit an error message because these
+ * are indications of repository corruption.
+ */
+static int curate_packed_ref_fn(struct ref_entry *entry, void *cb_data)
{
- int *fd = cb_data;
- enum peel_status peel_status;
+ struct string_list *refs_to_delete = cb_data;
if (entry->flag & REF_ISBROKEN) {
/* This shouldn't happen to packed refs. */
error("%s is broken!", entry->name);
+ string_list_append(refs_to_delete, entry->name);
return 0;
}
if (!has_sha1_file(entry->u.value.sha1)) {
if (read_ref_full(entry->name, sha1, 0, &flags))
/* We should at least have found the packed ref. */
die("Internal error");
- if ((flags & REF_ISSYMREF) || !(flags & REF_ISPACKED))
+ if ((flags & REF_ISSYMREF) || !(flags & REF_ISPACKED)) {
/*
* This packed reference is overridden by a
* loose reference, so it is OK that its value
* collected. For this purpose we don't even
* care whether the loose reference itself is
* invalid, broken, symbolic, etc. Silently
- * omit the packed reference from the output.
+ * remove the packed reference.
*/
+ string_list_append(refs_to_delete, entry->name);
return 0;
+ }
/*
* There is no overriding loose reference, so the fact
* that this reference doesn't refer to a valid object
* the output.
*/
error("%s does not point to a valid object!", entry->name);
+ string_list_append(refs_to_delete, entry->name);
return 0;
}
- peel_status = peel_entry(entry, 0);
- write_packed_entry(*fd, entry->name, entry->u.value.sha1,
- peel_status == PEEL_PEELED ?
- entry->u.value.peeled : NULL);
-
return 0;
}
static int repack_without_ref(const char *refname)
{
- int fd;
struct ref_dir *packed;
+ struct string_list refs_to_delete = STRING_LIST_INIT_DUP;
+ struct string_list_item *ref_to_delete;
if (!get_packed_ref(refname))
return 0; /* refname does not exist in packed refs */
- fd = hold_lock_file_for_update(&packlock, git_path("packed-refs"), 0);
- if (fd < 0) {
+ if (lock_packed_refs(0)) {
unable_to_lock_error(git_path("packed-refs"), errno);
return error("cannot delete '%s' from packed refs", refname);
}
- clear_packed_ref_cache(&ref_cache);
packed = get_packed_refs(&ref_cache);
- /* Remove refname from the cache. */
+
+ /* Remove refname from the cache: */
if (remove_entry(packed, refname) == -1) {
/*
* The packed entry disappeared while we were
* acquiring the lock.
*/
- rollback_lock_file(&packlock);
+ rollback_packed_refs();
return 0;
}
- write_or_die(fd, PACKED_REFS_HEADER, strlen(PACKED_REFS_HEADER));
- do_for_each_entry_in_dir(packed, 0, repack_ref_fn, &fd);
- return commit_lock_file(&packlock);
+
+ /* Remove any other accumulated cruft: */
+ do_for_each_entry_in_dir(packed, 0, curate_packed_ref_fn, &refs_to_delete);
+ for_each_string_list_item(ref_to_delete, &refs_to_delete) {
+ if (remove_entry(packed, ref_to_delete->string) == -1)
+ die("internal error");
+ }
+
+ /* Write what remains: */
+ return commit_packed_refs();
}
int delete_ref(const char *refname, const unsigned char *sha1, int delopt)
return 1;
}
-int for_each_recent_reflog_ent(const char *refname, each_reflog_ent_fn fn, long ofs, void *cb_data)
+static int show_one_reflog_ent(struct strbuf *sb, each_reflog_ent_fn fn, void *cb_data)
+{
+ unsigned char osha1[20], nsha1[20];
+ char *email_end, *message;
+ unsigned long timestamp;
+ int tz;
+
+ /* old SP new SP name <email> SP time TAB msg LF */
+ if (sb->len < 83 || sb->buf[sb->len - 1] != '\n' ||
+ get_sha1_hex(sb->buf, osha1) || sb->buf[40] != ' ' ||
+ get_sha1_hex(sb->buf + 41, nsha1) || sb->buf[81] != ' ' ||
+ !(email_end = strchr(sb->buf + 82, '>')) ||
+ email_end[1] != ' ' ||
+ !(timestamp = strtoul(email_end + 2, &message, 10)) ||
+ !message || message[0] != ' ' ||
+ (message[1] != '+' && message[1] != '-') ||
+ !isdigit(message[2]) || !isdigit(message[3]) ||
+ !isdigit(message[4]) || !isdigit(message[5]))
+ return 0; /* corrupt? */
+ email_end[1] = '\0';
+ tz = strtol(message + 1, NULL, 10);
+ if (message[6] != '\t')
+ message += 6;
+ else
+ message += 7;
+ return fn(osha1, nsha1, sb->buf + 82, timestamp, tz, message, cb_data);
+}
+
+static char *find_beginning_of_line(char *bob, char *scan)
+{
+ while (bob < scan && *(--scan) != '\n')
+ ; /* keep scanning backwards */
+ /*
+ * Return either beginning of the buffer, or LF at the end of
+ * the previous line.
+ */
+ return scan;
+}
+
+int for_each_reflog_ent_reverse(const char *refname, each_reflog_ent_fn fn, void *cb_data)
{
- const char *logfile;
- FILE *logfp;
struct strbuf sb = STRBUF_INIT;
- int ret = 0;
+ FILE *logfp;
+ long pos;
+ int ret = 0, at_tail = 1;
- logfile = git_path("logs/%s", refname);
- logfp = fopen(logfile, "r");
+ logfp = fopen(git_path("logs/%s", refname), "r");
if (!logfp)
return -1;
- if (ofs) {
- struct stat statbuf;
- if (fstat(fileno(logfp), &statbuf) ||
- statbuf.st_size < ofs ||
- fseek(logfp, -ofs, SEEK_END) ||
- strbuf_getwholeline(&sb, logfp, '\n')) {
- fclose(logfp);
- strbuf_release(&sb);
- return -1;
+ /* Jump to the end */
+ if (fseek(logfp, 0, SEEK_END) < 0)
+ return error("cannot seek back reflog for %s: %s",
+ refname, strerror(errno));
+ pos = ftell(logfp);
+ while (!ret && 0 < pos) {
+ int cnt;
+ size_t nread;
+ char buf[BUFSIZ];
+ char *endp, *scanp;
+
+ /* Fill next block from the end */
+ cnt = (sizeof(buf) < pos) ? sizeof(buf) : pos;
+ if (fseek(logfp, pos - cnt, SEEK_SET))
+ return error("cannot seek back reflog for %s: %s",
+ refname, strerror(errno));
+ nread = fread(buf, cnt, 1, logfp);
+ if (nread != 1)
+ return error("cannot read %d bytes from reflog for %s: %s",
+ cnt, refname, strerror(errno));
+ pos -= cnt;
+
+ scanp = endp = buf + cnt;
+ if (at_tail && scanp[-1] == '\n')
+ /* Looking at the final LF at the end of the file */
+ scanp--;
+ at_tail = 0;
+
+ while (buf < scanp) {
+ /*
+ * terminating LF of the previous line, or the beginning
+ * of the buffer.
+ */
+ char *bp;
+
+ bp = find_beginning_of_line(buf, scanp);
+
+ if (*bp != '\n') {
+ strbuf_splice(&sb, 0, 0, buf, endp - buf);
+ if (pos)
+ break; /* need to fill another block */
+ scanp = buf - 1; /* leave loop */
+ } else {
+ /*
+ * (bp + 1) thru endp is the beginning of the
+ * current line we have in sb
+ */
+ strbuf_splice(&sb, 0, 0, bp + 1, endp - (bp + 1));
+ scanp = bp;
+ endp = bp + 1;
+ }
+ ret = show_one_reflog_ent(&sb, fn, cb_data);
+ strbuf_reset(&sb);
+ if (ret)
+ break;
}
- }
- while (!strbuf_getwholeline(&sb, logfp, '\n')) {
- unsigned char osha1[20], nsha1[20];
- char *email_end, *message;
- unsigned long timestamp;
- int tz;
-
- /* old SP new SP name <email> SP time TAB msg LF */
- if (sb.len < 83 || sb.buf[sb.len - 1] != '\n' ||
- get_sha1_hex(sb.buf, osha1) || sb.buf[40] != ' ' ||
- get_sha1_hex(sb.buf + 41, nsha1) || sb.buf[81] != ' ' ||
- !(email_end = strchr(sb.buf + 82, '>')) ||
- email_end[1] != ' ' ||
- !(timestamp = strtoul(email_end + 2, &message, 10)) ||
- !message || message[0] != ' ' ||
- (message[1] != '+' && message[1] != '-') ||
- !isdigit(message[2]) || !isdigit(message[3]) ||
- !isdigit(message[4]) || !isdigit(message[5]))
- continue; /* corrupt? */
- email_end[1] = '\0';
- tz = strtol(message + 1, NULL, 10);
- if (message[6] != '\t')
- message += 6;
- else
- message += 7;
- ret = fn(osha1, nsha1, sb.buf + 82, timestamp, tz, message,
- cb_data);
- if (ret)
- break;
}
+ if (!ret && sb.len)
+ ret = show_one_reflog_ent(&sb, fn, cb_data);
+
fclose(logfp);
strbuf_release(&sb);
return ret;
int for_each_reflog_ent(const char *refname, each_reflog_ent_fn fn, void *cb_data)
{
- return for_each_recent_reflog_ent(refname, fn, 0, cb_data);
-}
+ FILE *logfp;
+ struct strbuf sb = STRBUF_INIT;
+ int ret = 0;
+ logfp = fopen(git_path("logs/%s", refname), "r");
+ if (!logfp)
+ return -1;
+
+ while (!ret && !strbuf_getwholeline(&sb, logfp, '\n'))
+ ret = show_one_reflog_ent(&sb, fn, cb_data);
+ fclose(logfp);
+ strbuf_release(&sb);
+ return ret;
+}
/*
* Call fn for each reflog in the namespace indicated by name. name
* must be empty or end with '/'. Name will be used as a scratch
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)
+{
+ if (!strcmp("transfer.hiderefs", var) ||
+ /* NEEDSWORK: use parse_config_key() once both are merged */
+ (!prefixcmp(var, section) && var[strlen(section)] == '.' &&
+ !strcmp(var + strlen(section), ".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)
+{
+ struct string_list_item *item;
+
+ if (!hide_refs)
+ return 0;
+ for_each_string_list_item(item, hide_refs) {
+ int len;
+ if (prefixcmp(refname, item->string))
+ continue;
+ len = strlen(item->string);
+ if (!refname[len] || refname[len] == '/')
+ return 1;
+ }
+ return 0;
+}