Make index file locking code reusable to others.

The framework to create lockfiles that are removed at exit is
first used to reliably write the index file, but it is
applicable to other things, so stop calling it "cache_file".

This also rewords a few remaining error message that called the
index file "cache file".

Signed-off-by: Junio C Hamano <junkio@cox.net>

1 files changed, 5 insertions, 5 deletions

diff --git a/update-index.c b/update-index.c
index 956b6b34f..fbccc4a67 100644
--- a/update-index.c
+++ b/update-index.c
@@ -186,7 +186,7 @@ static void chmod_path(int flip, const char *path)
 	die("git-update-index: cannot chmod %cx '%s'", flip, path);
 }
 
-static struct cache_file cache_file;
+static struct lock_file lock_file;
 
 static void update_one(const char *path, const char *prefix, int prefix_length)
 {
@@ -489,9 +489,9 @@ int main(int argc, const char **argv)
 
 	git_config(git_default_config);
 
-	newfd = hold_index_file_for_update(&cache_file, get_index_file());
+	newfd = hold_lock_file_for_update(&lock_file, get_index_file());
 	if (newfd < 0)
-		die("unable to create new cachefile");
+		die("unable to create new index file");
 
 	entries = read_cache();
 	if (entries < 0)
@@ -645,8 +645,8 @@ int main(int argc, const char **argv)
  finish:
 	if (active_cache_changed) {
 		if (write_cache(newfd, active_cache, active_nr) ||
-		    commit_index_file(&cache_file))
-			die("Unable to write new cachefile");
+		    commit_lock_file(&lock_file))
+			die("Unable to write new index file");
 	}
 
 	return has_errors ? 1 : 0;