struct ref_entry **refs;
};
+/*
+ * Parse one line from a packed-refs file. Write the SHA1 to sha1.
+ * Return a pointer to the refname within the line (null-terminated),
+ * or NULL if there was a problem.
+ */
static const char *parse_ref_line(char *line, unsigned char *sha1)
{
/*
return line;
}
+/* Add a ref_entry to the end of the ref_array (unsorted). */
static void add_ref(const char *refname, const unsigned char *sha1,
int flag, int check_name, struct ref_array *refs,
struct ref_entry **new_entry)
return strcmp(one->name, two->name);
}
+/*
+ * Emit a warning and return true iff ref1 and ref2 have the same name
+ * and the same sha1. Die if they have the same name but different
+ * sha1s.
+ */
+static int is_dup_ref(const struct ref_entry *ref1, const struct ref_entry *ref2)
+{
+ if (!strcmp(ref1->name, ref2->name)) {
+ /* Duplicate name; make sure that the SHA1s match: */
+ if (hashcmp(ref1->sha1, ref2->sha1))
+ die("Duplicated ref, and SHA1s don't match: %s",
+ ref1->name);
+ warning("Duplicated ref: %s", ref1->name);
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
static void sort_ref_array(struct ref_array *array)
{
- int i = 0, j = 1;
+ int i, j;
/* Nothing to sort unless there are at least two entries */
if (array->nr < 2)
qsort(array->refs, array->nr, sizeof(*array->refs), ref_entry_cmp);
/* Remove any duplicates from the ref_array */
- for (; j < array->nr; j++) {
- struct ref_entry *a = array->refs[i];
- struct ref_entry *b = array->refs[j];
- if (!strcmp(a->name, b->name)) {
- if (hashcmp(a->sha1, b->sha1))
- die("Duplicated ref, and SHA1s don't match: %s",
- a->name);
- warning("Duplicated ref: %s", a->name);
- free(b);
+ i = 0;
+ for (j = 1; j < array->nr; j++) {
+ if (is_dup_ref(array->refs[i], array->refs[j])) {
+ free(array->refs[j]);
continue;
}
- i++;
- array->refs[i] = array->refs[j];
+ array->refs[++i] = array->refs[j];
}
array->nr = i + 1;
}
static struct ref_array extra_refs;
-static void free_ref_array(struct ref_array *array)
+static void clear_ref_array(struct ref_array *array)
{
int i;
for (i = 0; i < array->nr; i++)
static void clear_packed_ref_cache(struct ref_cache *refs)
{
if (refs->did_packed)
- free_ref_array(&refs->packed);
+ clear_ref_array(&refs->packed);
refs->did_packed = 0;
}
static void clear_loose_ref_cache(struct ref_cache *refs)
{
if (refs->did_loose)
- free_ref_array(&refs->loose);
+ clear_ref_array(&refs->loose);
refs->did_loose = 0;
}
void clear_extra_refs(void)
{
- free_ref_array(&extra_refs);
+ clear_ref_array(&extra_refs);
}
-static struct ref_array *get_packed_refs(const char *submodule)
+static struct ref_array *get_packed_refs(struct ref_cache *refs)
{
- struct ref_cache *refs = get_ref_cache(submodule);
-
if (!refs->did_packed) {
const char *packed_refs_file;
FILE *f;
- if (submodule)
- packed_refs_file = git_path_submodule(submodule, "packed-refs");
+ if (*refs->name)
+ packed_refs_file = git_path_submodule(refs->name, "packed-refs");
else
packed_refs_file = git_path("packed-refs");
f = fopen(packed_refs_file, "r");
return &refs->packed;
}
-static void get_ref_dir(const char *submodule, const char *base,
+static void get_ref_dir(struct ref_cache *refs, const char *base,
struct ref_array *array)
{
DIR *dir;
const char *path;
- if (submodule)
- path = git_path_submodule(submodule, "%s", base);
+ if (*refs->name)
+ path = git_path_submodule(refs->name, "%s", base);
else
path = git_path("%s", base);
if (has_extension(de->d_name, ".lock"))
continue;
memcpy(refname + baselen, de->d_name, namelen+1);
- refdir = submodule
- ? git_path_submodule(submodule, "%s", refname)
+ refdir = *refs->name
+ ? git_path_submodule(refs->name, "%s", refname)
: git_path("%s", refname);
if (stat(refdir, &st) < 0)
continue;
if (S_ISDIR(st.st_mode)) {
- get_ref_dir(submodule, refname, array);
+ get_ref_dir(refs, refname, array);
continue;
}
- if (submodule) {
+ if (*refs->name) {
hashclr(sha1);
flag = 0;
- if (resolve_gitlink_ref(submodule, refname, sha1) < 0) {
+ if (resolve_gitlink_ref(refs->name, refname, sha1) < 0) {
hashclr(sha1);
flag |= REF_ISBROKEN;
}
for_each_rawref(warn_if_dangling_symref, &data);
}
-static struct ref_array *get_loose_refs(const char *submodule)
+static struct ref_array *get_loose_refs(struct ref_cache *refs)
{
- struct ref_cache *refs = get_ref_cache(submodule);
-
if (!refs->did_loose) {
- get_ref_dir(submodule, "refs", &refs->loose);
+ get_ref_dir(refs, "refs", &refs->loose);
sort_ref_array(&refs->loose);
refs->did_loose = 1;
}
if (pathlen < 6 || memcmp(name + pathlen - 6, "/.git/", 6))
die("Oops");
name[pathlen - 6] = '\0'; /* make it path to the submodule */
- array = get_packed_refs(name);
+ array = get_packed_refs(get_ref_cache(name));
ref = search_ref_array(array, refname);
if (ref != NULL) {
memcpy(sha1, ref->sha1, 20);
*/
static int get_packed_ref(const char *refname, unsigned char *sha1)
{
- struct ref_array *packed = get_packed_refs(NULL);
+ struct ref_array *packed = get_packed_refs(get_ref_cache(NULL));
struct ref_entry *entry = search_ref_array(packed, refname);
if (entry) {
hashcpy(sha1, entry->sha1);
return -1;
if ((flag & REF_ISPACKED)) {
- struct ref_array *array = get_packed_refs(NULL);
+ struct ref_array *array = get_packed_refs(get_ref_cache(NULL));
struct ref_entry *r = search_ref_array(array, refname);
if (r != NULL && r->flag & REF_KNOWS_PEELED) {
int trim, int flags, void *cb_data)
{
int retval = 0, i, p = 0, l = 0;
- struct ref_array *packed = get_packed_refs(submodule);
- struct ref_array *loose = get_loose_refs(submodule);
+ struct ref_cache *refs = get_ref_cache(submodule);
+ struct ref_array *packed = get_packed_refs(refs);
+ struct ref_array *loose = get_loose_refs(refs);
struct ref_array *extra = &extra_refs;
return result;
}
+/*
+ * Return true iff a reference named refname could be created without
+ * conflicting with the name of an existing reference. If oldrefname
+ * is non-NULL, ignore potential conflicts with oldrefname (e.g.,
+ * because oldrefname is scheduled for deletion in the same
+ * operation).
+ */
static int is_refname_available(const char *refname, const char *oldrefname,
- struct ref_array *array, int quiet)
+ struct ref_array *array)
{
int i, namlen = strlen(refname); /* e.g. 'foo/bar' */
for (i = 0; i < array->nr; i++ ) {
const char *lead = (namlen < len) ? entry->name : refname;
if (!strncmp(refname, entry->name, cmplen) &&
lead[cmplen] == '/') {
- if (!quiet)
- error("'%s' exists; cannot create '%s'",
- entry->name, refname);
+ error("'%s' exists; cannot create '%s'",
+ entry->name, refname);
return 0;
}
}
* name is a proper prefix of our refname.
*/
if (missing &&
- !is_refname_available(refname, NULL, get_packed_refs(NULL), 0)) {
+ !is_refname_available(refname, NULL, get_packed_refs(get_ref_cache(NULL)))) {
last_errno = ENOTDIR;
goto error_return;
}
struct ref_entry *ref;
int fd, i;
- packed = get_packed_refs(NULL);
+ packed = get_packed_refs(get_ref_cache(NULL));
ref = search_ref_array(packed, refname);
if (ref == NULL)
return 0;
struct stat loginfo;
int log = !lstat(git_path("logs/%s", oldrefname), &loginfo);
const char *symref = NULL;
+ struct ref_cache *refs = get_ref_cache(NULL);
if (log && S_ISLNK(loginfo.st_mode))
return error("reflog for %s is a symlink", oldrefname);
if (!symref)
return error("refname %s not found", oldrefname);
- if (!is_refname_available(newrefname, oldrefname, get_packed_refs(NULL), 0))
+ if (!is_refname_available(newrefname, oldrefname, get_packed_refs(refs)))
return 1;
- if (!is_refname_available(newrefname, oldrefname, get_loose_refs(NULL), 0))
+ if (!is_refname_available(newrefname, oldrefname, get_loose_refs(refs)))
return 1;
if (log && rename(git_path("logs/%s", oldrefname), git_path(TMP_RENAMED_LOG)))