fix git commit --amend -m "new message"

diff --git a/unpack-file.c b/unpack-file.c
index 3accb974dd448233a01e82ab1d6e3599d825fa9e..65c66eb0bf34efee6485db3dbf8af11788c394f4 100644 (file)
--- a/unpack-file.c
+++ b/unpack-file.c
@@ -1,22 +1,21 @@
 #include "cache.h"
+#include "blob.h"
 
 static char *create_temp_file(unsigned char *sha1)
 {
        static char path[50];
        void *buf;
-       char type[100];
+       enum object_type type;
        unsigned long size;
        int fd;
 
-       buf = read_sha1_file(sha1, type, &size);
-       if (!buf || strcmp(type, "blob"))
+       buf = read_sha1_file(sha1, &type, &size);
+       if (!buf || type != OBJ_BLOB)
                die("unable to read blob object %s", sha1_to_hex(sha1));
 
        strcpy(path, ".merge_file_XXXXXX");
-       fd = mkstemp(path);
-       if (fd < 0)
-               die("unable to create temp-file");
-       if (write(fd, buf, size) != size)
+       fd = xmkstemp(path);
+       if (write_in_full(fd, buf, size) != size)
                die("unable to write temp-file");
        close(fd);
        return path;
@@ -26,8 +25,10 @@ int main(int argc, char **argv)
 {
        unsigned char sha1[20];
 
-       if (argc != 2 || get_sha1(argv[1], sha1))
+       if (argc != 2)
                usage("git-unpack-file <sha1>");
+       if (get_sha1(argv[1], sha1))
+               die("Not a valid object name %s", argv[1]);
 
        setup_git_directory();
        git_config(git_default_config);