Merge branch 'jk/epipe-in-async'

diff --git a/refs/files-backend.c b/refs/files-backend.c
index 81c92b410eb76cd11dd56f6b82afec6668745dd1..81f68f846b69af65badfbe8c25d4a03601fb23c8 100644 (file)
--- a/refs/files-backend.c
+++ b/refs/files-backend.c
@@ -199,17 +199,14 @@ static struct ref_entry *create_ref_entry(const char *refname,
                                          const unsigned char *sha1, int flag,
                                          int check_name)
 {
-       int len;
        struct ref_entry *ref;
 
        if (check_name &&
            check_refname_format(refname, REFNAME_ALLOW_ONELEVEL))
                die("Reference has invalid format: '%s'", refname);
-       len = strlen(refname) + 1;
-       ref = xmalloc(sizeof(struct ref_entry) + len);
+       FLEX_ALLOC_STR(ref, name, refname);
        hashcpy(ref->u.value.oid.hash, sha1);
        oidclr(&ref->u.value.peeled);
-       memcpy(ref->name, refname, len);
        ref->flag = flag;
        return ref;
 }
@@ -268,9 +265,7 @@ static struct ref_entry *create_dir_entry(struct ref_cache *ref_cache,
                                          int incomplete)
 {
        struct ref_entry *direntry;
-       direntry = xcalloc(1, sizeof(struct ref_entry) + len + 1);
-       memcpy(direntry->name, dirname, len);
-       direntry->name[len] = '\0';
+       FLEX_ALLOC_MEM(direntry, name, dirname, len);
        direntry->u.subdir.ref_cache = ref_cache;
        direntry->flag = REF_DIR | (incomplete ? REF_INCOMPLETE : 0);
        return direntry;
@@ -933,25 +928,22 @@ static void clear_loose_ref_cache(struct ref_cache *refs)
        }
 }
 
+/*
+ * Create a new submodule ref cache and add it to the internal
+ * set of caches.
+ */
 static struct ref_cache *create_ref_cache(const char *submodule)
 {
-       int len;
        struct ref_cache *refs;
        if (!submodule)
                submodule = "";
-       len = strlen(submodule) + 1;
-       refs = xcalloc(1, sizeof(struct ref_cache) + len);
-       memcpy(refs->name, submodule, len);
+       FLEX_ALLOC_STR(refs, name, submodule);
+       refs->next = submodule_ref_caches;
+       submodule_ref_caches = refs;
        return refs;
 }
 
-/*
- * Return a pointer to a ref_cache for the specified submodule. For
- * the main repository, use submodule==NULL. The returned structure
- * will be allocated and initialized but not necessarily populated; it
- * should not be freed.
- */
-static struct ref_cache *get_ref_cache(const char *submodule)
+static struct ref_cache *lookup_ref_cache(const char *submodule)
 {
        struct ref_cache *refs;
 
@@ -961,10 +953,20 @@ static struct ref_cache *get_ref_cache(const char *submodule)
        for (refs = submodule_ref_caches; refs; refs = refs->next)
                if (!strcmp(submodule, refs->name))
                        return refs;
+       return NULL;
+}
 
-       refs = create_ref_cache(submodule);
-       refs->next = submodule_ref_caches;
-       submodule_ref_caches = refs;
+/*
+ * Return a pointer to a ref_cache for the specified submodule. For
+ * the main repository, use submodule==NULL. The returned structure
+ * will be allocated and initialized but not necessarily populated; it
+ * should not be freed.
+ */
+static struct ref_cache *get_ref_cache(const char *submodule)
+{
+       struct ref_cache *refs = lookup_ref_cache(submodule);
+       if (!refs)
+               refs = create_ref_cache(submodule);
        return refs;
 }
 
@@ -1336,16 +1338,24 @@ static int resolve_gitlink_ref_recursive(struct ref_cache *refs,
 int resolve_gitlink_ref(const char *path, const char *refname, unsigned char *sha1)
 {
        int len = strlen(path), retval;
-       char *submodule;
+       struct strbuf submodule = STRBUF_INIT;
        struct ref_cache *refs;
 
        while (len && path[len-1] == '/')
                len--;
        if (!len)
                return -1;
-       submodule = xstrndup(path, len);
-       refs = get_ref_cache(submodule);
-       free(submodule);
+
+       strbuf_add(&submodule, path, len);
+       refs = lookup_ref_cache(submodule.buf);
+       if (!refs) {
+               if (!is_nonbare_repository_dir(&submodule)) {
+                       strbuf_release(&submodule);
+                       return -1;
+               }
+               refs = create_ref_cache(submodule.buf);
+       }
+       strbuf_release(&submodule);
 
        retval = resolve_gitlink_ref_recursive(refs, refname, sha1, 0);
        return retval;
@@ -2179,10 +2189,9 @@ static int pack_if_possible_fn(struct ref_entry *entry, void *cb_data)
 
        /* 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);
+               struct ref_to_prune *n;
+               FLEX_ALLOC_STR(n, name, entry->name);
                hashcpy(n->sha1, entry->u.value.oid.hash);
-               memcpy(n->name, entry->name, namelen); /* includes NUL */
                n->next = cb->ref_to_prune;
                cb->ref_to_prune = n;
        }