Make the exit code of add_file_to_index actually useful

Update the programs which used the function (as add_file_to_cache).

Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

4 files changed, 13 insertions, 9 deletions

diff --git a/builtin-add.c b/builtin-add.c
index 4a91e3eb11..4d72ab678d 100644
--- a/builtin-add.c
+++ b/builtin-add.c
@@ -94,7 +94,8 @@ static void update_callback(struct diff_queue_struct *q,
 		case DIFF_STATUS_UNMERGED:
 		case DIFF_STATUS_MODIFIED:
 		case DIFF_STATUS_TYPE_CHANGED:
-			add_file_to_cache(path, verbose);
+			if (add_file_to_cache(path, verbose))
+				die("updating files failed");
 			break;
 		case DIFF_STATUS_DELETED:
 			remove_file_from_cache(path);
@@ -254,7 +255,8 @@ int cmd_add(int argc, const char **argv, const char *prefix)
 	}
 
 	for (i = 0; i < dir.nr; i++)
-		add_file_to_cache(dir.entries[i]->name, verbose);
+		if (add_file_to_cache(dir.entries[i]->name, verbose))
+			die("adding files failed");
 
  finish:
 	if (active_cache_changed) {
diff --git a/builtin-commit.c b/builtin-commit.c
index a65c2b8c37..ae29d35d76 100644
--- a/builtin-commit.c
+++ b/builtin-commit.c
@@ -178,9 +178,10 @@ static void add_remove_files(struct path_list *list)
 		struct stat st;
 		struct path_list_item *p = &(list->items[i]);
 
-		if (!lstat(p->path, &st))
-			add_to_cache(p->path, &st, 0);
-		else
+		if (!lstat(p->path, &st)) {
+			if (add_to_cache(p->path, &st, 0))
+				die("updating files failed");
+		} else
 			remove_file_from_cache(p->path);
 	}
 }
diff --git a/builtin-mv.c b/builtin-mv.c
index 94f6dd2aad..fb8ffb41aa 100644
--- a/builtin-mv.c
+++ b/builtin-mv.c
@@ -256,7 +256,8 @@ int cmd_mv(int argc, const char **argv, const char *prefix)
 
 		for (i = 0; i < added.nr; i++) {
 			const char *path = added.items[i].path;
-			add_file_to_cache(path, verbose);
+			if (add_file_to_cache(path, verbose))
+				die("updating index entries failed");
 		}
 
 		for (i = 0; i < deleted.nr; i++)
diff --git a/read-cache.c b/read-cache.c
index 0382804e76..8b467f8f41 100644
--- a/read-cache.c
+++ b/read-cache.c
@@ -470,7 +470,7 @@ int add_to_index(struct index_state *istate, const char *path, struct stat *st,
 	unsigned ce_option = CE_MATCH_IGNORE_VALID|CE_MATCH_RACY_IS_DIRTY;
 
 	if (!S_ISREG(st_mode) && !S_ISLNK(st_mode) && !S_ISDIR(st_mode))
-		die("%s: can only add regular files, symbolic links or git-directories", path);
+		return error("%s: can only add regular files, symbolic links or git-directories", path);
 
 	namelen = strlen(path);
 	if (S_ISDIR(st_mode)) {
@@ -505,12 +505,12 @@ int add_to_index(struct index_state *istate, const char *path, struct stat *st,
 		return 0;
 	}
 	if (index_path(ce->sha1, path, st, 1))
-		die("unable to index file %s", path);
+		return error("unable to index file %s", path);
 	if (ignore_case && alias && different_name(ce, alias))
 		ce = create_alias_ce(ce, alias);
 	ce->ce_flags |= CE_ADDED;
 	if (add_index_entry(istate, ce, ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE))
-		die("unable to add %s to index",path);
+		return error("unable to add %s to index",path);
 	if (verbose)
 		printf("add '%s'\n", path);
 	return 0;