[PATCH] Consolidate the error handling

Now there is error() for "library" errors and die() for fatal "application"
errors. usage() is now used strictly only for usage errors.

Signed-off-by: Petr Baudis <pasky@ucw.cz>

1 files changed, 7 insertions, 13 deletions

diff --git a/cat-file.c b/cat-file.c
index 3829fb609..3c47d79a1 100644
--- a/cat-file.c
+++ b/cat-file.c
@@ -13,20 +13,17 @@ int main(int argc, char **argv)
 	unsigned long size;
 
 	if (argc != 3 || get_sha1_hex(argv[2], sha1))
-		usage("cat-file: cat-file [-t | tagname] <sha1>");
+		usage("cat-file [-t | tagname] <sha1>");
 	buf = read_sha1_file(sha1, type, &size);
-	if (!buf) {
-		fprintf(stderr, "cat-file %s: bad file\n", argv[2]);
-		exit(1);
-	}
+	if (!buf)
+		die("cat-file %s: bad file", argv[2]);
 	if (!strcmp("-t", argv[1])) {
 		buf = type;
 		size = strlen(type);
 		type[size] = '\n';
 		size++;
 	} else if (strcmp(type, argv[1])) {
-		fprintf(stderr, "cat-file %s: bad tag\n", argv[2]);
-		exit(1);	/* bad tag */
+		die("cat-file %s: bad tag", argv[2]);
 	}
 
 	while (size > 0) {
@@ -37,12 +34,9 @@ int main(int argc, char **argv)
 			/* Ignore epipe */
 			if (errno == EPIPE)
 				break;
-			fprintf(stderr, "cat-file: %s\n", strerror(errno));
-			exit(1);
-		}
-		if (!ret) {
-			fprintf(stderr, "cat-file: disk full?");
-			exit(1);
+			die("cat-file: %s", strerror(errno));
+		} else if (!ret) {
+			die("cat-file: disk full?");
 		}
 		size -= ret;
 		buf += ret;