refs.c: move dwim_ref()/dwim_log() from sha1_name.c

Both dwim_ref()/dwim_log() functions are intimately related to the ref
parsing rules defined in refs.c and better fits there. Move them together
with substitute_branch_name(), a file scope static helper function.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/refs.c b/refs.c
index 832a52f7818369bca969d49317718714a5bcabac..e3692bd3d8cec6a03721bbda91466bfca34b8783 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -1067,6 +1067,91 @@ static int is_refname_available(const char *ref, const char *oldref,
        return 1;
 }
 
+/*
+ * *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, &buf);
+
+       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, unsigned char *sha1, char **ref)
+{
+       char *last_branch = substitute_branch_name(&str, &len);
+       const char **p, *r;
+       int refs_found = 0;
+
+       *ref = NULL;
+       for (p = ref_rev_parse_rules; *p; p++) {
+               char fullref[PATH_MAX];
+               unsigned char sha1_from_ref[20];
+               unsigned char *this_result;
+               int flag;
+
+               this_result = refs_found ? sha1_from_ref : sha1;
+               mksnpath(fullref, sizeof(fullref), *p, len, str);
+               r = resolve_ref(fullref, this_result, 1, &flag);
+               if (r) {
+                       if (!refs_found++)
+                               *ref = xstrdup(r);
+                       if (!warn_ambiguous_refs)
+                               break;
+               } else if ((flag & REF_ISSYMREF) && strcmp(fullref, "HEAD"))
+                       warning("ignoring dangling symref %s.", fullref);
+       }
+       free(last_branch);
+       return refs_found;
+}
+
+int dwim_log(const char *str, int len, unsigned char *sha1, char **log)
+{
+       char *last_branch = substitute_branch_name(&str, &len);
+       const char **p;
+       int logs_found = 0;
+
+       *log = NULL;
+       for (p = ref_rev_parse_rules; *p; p++) {
+               struct stat st;
+               unsigned char hash[20];
+               char path[PATH_MAX];
+               const char *ref, *it;
+
+               mksnpath(path, sizeof(path), *p, len, str);
+               ref = resolve_ref(path, hash, 1, NULL);
+               if (!ref)
+                       continue;
+               if (!stat(git_path("logs/%s", path), &st) &&
+                   S_ISREG(st.st_mode))
+                       it = path;
+               else if (strcmp(ref, path) &&
+                        !stat(git_path("logs/%s", ref), &st) &&
+                        S_ISREG(st.st_mode))
+                       it = ref;
+               else
+                       continue;
+               if (!logs_found++) {
+                       *log = xstrdup(it);
+                       hashcpy(sha1, hash);
+               }
+               if (!warn_ambiguous_refs)
+                       break;
+       }
+       free(last_branch);
+       return logs_found;
+}
+
 static struct ref_lock *lock_ref_sha1_basic(const char *ref, const unsigned char *old_sha1, int flags, int *type_p)
 {
        char *ref_file;

diff --git a/sha1_name.c b/sha1_name.c
index 143fd97ede19194617f1d9b808ec8eb7cd189c5b..d4236359621582bcf6b0d4e8be47a16b3a85de34 100644 (file)
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -241,91 +241,6 @@ static int ambiguous_path(const char *path, int len)
        return slash;
 }
 
-/*
- * *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, &buf);
-
-       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, unsigned char *sha1, char **ref)
-{
-       char *last_branch = substitute_branch_name(&str, &len);
-       const char **p, *r;
-       int refs_found = 0;
-
-       *ref = NULL;
-       for (p = ref_rev_parse_rules; *p; p++) {
-               char fullref[PATH_MAX];
-               unsigned char sha1_from_ref[20];
-               unsigned char *this_result;
-               int flag;
-
-               this_result = refs_found ? sha1_from_ref : sha1;
-               mksnpath(fullref, sizeof(fullref), *p, len, str);
-               r = resolve_ref(fullref, this_result, 1, &flag);
-               if (r) {
-                       if (!refs_found++)
-                               *ref = xstrdup(r);
-                       if (!warn_ambiguous_refs)
-                               break;
-               } else if ((flag & REF_ISSYMREF) && strcmp(fullref, "HEAD"))
-                       warning("ignoring dangling symref %s.", fullref);
-       }
-       free(last_branch);
-       return refs_found;
-}
-
-int dwim_log(const char *str, int len, unsigned char *sha1, char **log)
-{
-       char *last_branch = substitute_branch_name(&str, &len);
-       const char **p;
-       int logs_found = 0;
-
-       *log = NULL;
-       for (p = ref_rev_parse_rules; *p; p++) {
-               struct stat st;
-               unsigned char hash[20];
-               char path[PATH_MAX];
-               const char *ref, *it;
-
-               mksnpath(path, sizeof(path), *p, len, str);
-               ref = resolve_ref(path, hash, 1, NULL);
-               if (!ref)
-                       continue;
-               if (!stat(git_path("logs/%s", path), &st) &&
-                   S_ISREG(st.st_mode))
-                       it = path;
-               else if (strcmp(ref, path) &&
-                        !stat(git_path("logs/%s", ref), &st) &&
-                        S_ISREG(st.st_mode))
-                       it = ref;
-               else
-                       continue;
-               if (!logs_found++) {
-                       *log = xstrdup(it);
-                       hashcpy(sha1, hash);
-               }
-               if (!warn_ambiguous_refs)
-                       break;
-       }
-       free(last_branch);
-       return logs_found;
-}
-
 static inline int upstream_mark(const char *string, int len)
 {
        const char *suffix[] = { "@{upstream}", "@{u}" };