refs.h: rename the action_on_err constants

Given that these constants are only being used when updating
references, it is inappropriate to give them such generic names as
"DIE_ON_ERR".  So prefix their names with "UPDATE_REFS_".

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/checkout.c

@@ -624,7 +624,7 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
 		/* Nothing to do. */
 	} else if (opts->force_detach || !new->path) {	/* No longer on any branch. */
 		update_ref(msg.buf, "HEAD", new->commit->object.sha1, NULL,
-			   REF_NODEREF, DIE_ON_ERR);
+			   REF_NODEREF, UPDATE_REFS_DIE_ON_ERR);
 		if (!opts->quiet) {
 			if (old->path && advice_detached_head)
 				detach_advice(new->name);

builtin/clone.c

@@ -521,7 +521,7 @@ static void write_followtags(const struct ref *refs, const char *msg)
 		if (!has_sha1_file(ref->old_sha1))
 			continue;
 		update_ref(msg, ref->name, ref->old_sha1,
-			   NULL, 0, DIE_ON_ERR);
+			   NULL, 0, UPDATE_REFS_DIE_ON_ERR);
 	}
 }
 
@@ -589,14 +589,15 @@ static void update_head(const struct ref *our, const struct ref *remote,
 		create_symref("HEAD", our->name, NULL);
 		if (!option_bare) {
 			const char *head = skip_prefix(our->name, "refs/heads/");
-			update_ref(msg, "HEAD", our->old_sha1, NULL, 0, DIE_ON_ERR);
+			update_ref(msg, "HEAD", our->old_sha1, NULL, 0,
+				   UPDATE_REFS_DIE_ON_ERR);
 			install_branch_config(0, head, option_origin, our->name);
 		}
 	} else if (our) {
 		struct commit *c = lookup_commit_reference(our->old_sha1);
 		/* --branch specifies a non-branch (i.e. tags), detach HEAD */
 		update_ref(msg, "HEAD", c->object.sha1,
-			   NULL, REF_NODEREF, DIE_ON_ERR);
+			   NULL, REF_NODEREF, UPDATE_REFS_DIE_ON_ERR);
 	} else if (remote) {
 		/*
 		 * We know remote HEAD points to a non-branch, or
@@ -604,7 +605,7 @@ static void update_head(const struct ref *our, const struct ref *remote,
 		 * Detach HEAD in all these cases.
 		 */
 		update_ref(msg, "HEAD", remote->old_sha1,
-			   NULL, REF_NODEREF, DIE_ON_ERR);
+			   NULL, REF_NODEREF, UPDATE_REFS_DIE_ON_ERR);
 	}
 }
 

builtin/merge.c

@@ -398,7 +398,7 @@ static void finish(struct commit *head_commit,
 			const char *argv_gc_auto[] = { "gc", "--auto", NULL };
 			update_ref(reflog_message.buf, "HEAD",
 				new_head, head, 0,
-				DIE_ON_ERR);
+				UPDATE_REFS_DIE_ON_ERR);
 			/*
 			 * We ignore errors in 'gc --auto', since the
 			 * user should see them.
@@ -1222,7 +1222,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
 			die(_("%s - not something we can merge"), argv[0]);
 		read_empty(remote_head->object.sha1, 0);
 		update_ref("initial pull", "HEAD", remote_head->object.sha1,
-			   NULL, 0, DIE_ON_ERR);
+			   NULL, 0, UPDATE_REFS_DIE_ON_ERR);
 		goto done;
 	} else {
 		struct strbuf merge_names = STRBUF_INIT;
@@ -1339,7 +1339,7 @@ int cmd_merge(int argc, const char **argv, const char *prefix)
 	}
 
 	update_ref("updating ORIG_HEAD", "ORIG_HEAD", head_commit->object.sha1,
-		   NULL, 0, DIE_ON_ERR);
+		   NULL, 0, UPDATE_REFS_DIE_ON_ERR);
 
 	if (remoteheads && !common)
 		; /* No common ancestors found. We need a real merge. */

builtin/notes.c

@@ -717,7 +717,7 @@ static int merge_commit(struct notes_merge_options *o)
 	strbuf_insert(&msg, 0, "notes: ", 7);
 	update_ref(msg.buf, o->local_ref, sha1,
 		   is_null_sha1(parent_sha1) ? NULL : parent_sha1,
-		   0, DIE_ON_ERR);
+		   0, UPDATE_REFS_DIE_ON_ERR);
 
 	free_notes(t);
 	strbuf_release(&msg);
@@ -812,11 +812,11 @@ static int merge(int argc, const char **argv, const char *prefix)
 	if (result >= 0) /* Merge resulted (trivially) in result_sha1 */
 		/* Update default notes ref with new commit */
 		update_ref(msg.buf, default_notes_ref(), result_sha1, NULL,
-			   0, DIE_ON_ERR);
+			   0, UPDATE_REFS_DIE_ON_ERR);
 	else { /* Merge has unresolved conflicts */
 		/* Update .git/NOTES_MERGE_PARTIAL with partial merge result */
 		update_ref(msg.buf, "NOTES_MERGE_PARTIAL", result_sha1, NULL,
-			   0, DIE_ON_ERR);
+			   0, UPDATE_REFS_DIE_ON_ERR);
 		/* Store ref-to-be-updated into .git/NOTES_MERGE_REF */
 		if (create_symref("NOTES_MERGE_REF", default_notes_ref(), NULL))
 			die("Failed to store link to current notes ref (%s)",

builtin/reset.c

@@ -252,11 +252,13 @@ static int reset_refs(const char *rev, const unsigned char *sha1)
 	if (!get_sha1("HEAD", sha1_orig)) {
 		orig = sha1_orig;
 		set_reflog_message(&msg, "updating ORIG_HEAD", NULL);
-		update_ref(msg.buf, "ORIG_HEAD", orig, old_orig, 0, MSG_ON_ERR);
+		update_ref(msg.buf, "ORIG_HEAD", orig, old_orig, 0,
+			   UPDATE_REFS_MSG_ON_ERR);
 	} else if (old_orig)
 		delete_ref("ORIG_HEAD", old_orig, 0);
 	set_reflog_message(&msg, "updating HEAD", rev);
-	update_ref_status = update_ref(msg.buf, "HEAD", sha1, orig, 0, MSG_ON_ERR);
+	update_ref_status = update_ref(msg.buf, "HEAD", sha1, orig, 0,
+				       UPDATE_REFS_MSG_ON_ERR);
 	strbuf_release(&msg);
 	return update_ref_status;
 }

builtin/update-ref.c

@@ -282,7 +282,8 @@ int cmd_update_ref(int argc, const char **argv, const char *prefix)
 		if (end_null)
 			line_termination = '\0';
 		update_refs_stdin();
-		return update_refs(msg, updates, updates_count, DIE_ON_ERR);
+		return update_refs(msg, updates, updates_count,
+				   UPDATE_REFS_DIE_ON_ERR);
 	}
 
 	if (end_null)
@@ -314,5 +315,5 @@ int cmd_update_ref(int argc, const char **argv, const char *prefix)
 		return delete_ref(refname, oldval ? oldsha1 : NULL, flags);
 	else
 		return update_ref(msg, refname, sha1, oldval ? oldsha1 : NULL,
-				  flags, DIE_ON_ERR);
+				  flags, UPDATE_REFS_DIE_ON_ERR);
 }

contrib/examples/builtin-fetch--tool.c

@@ -31,7 +31,8 @@ static int update_ref_env(const char *action,
 		rla = "(reflog update)";
 	if (snprintf(msg, sizeof(msg), "%s: %s", rla, action) >= sizeof(msg))
 		warning("reflog message too long: %.*s...", 50, msg);
-	return update_ref(msg, refname, sha1, oldval, 0, QUIET_ON_ERR);
+	return update_ref(msg, refname, sha1, oldval, 0,
+			  UPDATE_REFS_QUIET_ON_ERR);
 }
 
 static int update_local_ref(const char *name,

notes-cache.c

@@ -62,7 +62,7 @@ int notes_cache_write(struct notes_cache *c)
 	if (commit_tree(&msg, tree_sha1, NULL, commit_sha1, NULL, NULL) < 0)
 		return -1;
 	if (update_ref("update notes cache", c->tree.ref, commit_sha1, NULL,
-		       0, QUIET_ON_ERR) < 0)
+		       0, UPDATE_REFS_QUIET_ON_ERR) < 0)
 		return -1;
 
 	return 0;

notes-utils.c

@@ -48,7 +48,8 @@ void commit_notes(struct notes_tree *t, const char *msg)
 
 	create_notes_commit(t, NULL, &buf, commit_sha1);
 	strbuf_insert(&buf, 0, "notes: ", 7); /* commit message starts at index 7 */
-	update_ref(buf.buf, t->ref, commit_sha1, NULL, 0, DIE_ON_ERR);
+	update_ref(buf.buf, t->ref, commit_sha1, NULL, 0,
+		   UPDATE_REFS_DIE_ON_ERR);
 
 	strbuf_release(&buf);
 }

refs.c

@@ -3243,9 +3243,9 @@ static struct ref_lock *update_ref_lock(const char *refname,
 	if (!lock) {
 		const char *str = "Cannot lock the ref '%s'.";
 		switch (onerr) {
-		case MSG_ON_ERR: error(str, refname); break;
-		case DIE_ON_ERR: die(str, refname); break;
-		case QUIET_ON_ERR: break;
+		case UPDATE_REFS_MSG_ON_ERR: error(str, refname); break;
+		case UPDATE_REFS_DIE_ON_ERR: die(str, refname); break;
+		case UPDATE_REFS_QUIET_ON_ERR: break;
 		}
 	}
 	return lock;
@@ -3258,9 +3258,9 @@ static int update_ref_write(const char *action, const char *refname,
 	if (write_ref_sha1(lock, sha1, action) < 0) {
 		const char *str = "Cannot update the ref '%s'.";
 		switch (onerr) {
-		case MSG_ON_ERR: error(str, refname); break;
-		case DIE_ON_ERR: die(str, refname); break;
-		case QUIET_ON_ERR: break;
+		case UPDATE_REFS_MSG_ON_ERR: error(str, refname); break;
+		case UPDATE_REFS_DIE_ON_ERR: die(str, refname); break;
+		case UPDATE_REFS_QUIET_ON_ERR: break;
 		}
 		return 1;
 	}
@@ -3294,11 +3294,11 @@ static int ref_update_reject_duplicates(struct ref_update **updates, int n,
 			const char *str =
 				"Multiple updates for ref '%s' not allowed.";
 			switch (onerr) {
-			case MSG_ON_ERR:
+			case UPDATE_REFS_MSG_ON_ERR:
 				error(str, updates[i]->ref_name); break;
-			case DIE_ON_ERR:
+			case UPDATE_REFS_DIE_ON_ERR:
 				die(str, updates[i]->ref_name); break;
-			case QUIET_ON_ERR:
+			case UPDATE_REFS_QUIET_ON_ERR:
 				break;
 			}
 			return 1;

refs.h

@@ -214,8 +214,13 @@ extern int rename_ref(const char *oldref, const char *newref, const char *logmsg
  */
 extern int resolve_gitlink_ref(const char *path, const char *refname, unsigned char *sha1);
 
-/** lock a ref and then write its file */
-enum action_on_err { MSG_ON_ERR, DIE_ON_ERR, QUIET_ON_ERR };
+enum action_on_err {
+	UPDATE_REFS_MSG_ON_ERR,
+	UPDATE_REFS_DIE_ON_ERR,
+	UPDATE_REFS_QUIET_ON_ERR
+};
+
+/** Lock a ref and then write its file */
 int update_ref(const char *action, const char *refname,
 		const unsigned char *sha1, const unsigned char *oldval,
 		int flags, enum action_on_err onerr);