Make "write_sha1_file()" exit early if the file already exists.

diff --git a/merge-cache.c b/merge-cache.c
index 3aa391be0a236ea1c432dadcd14824c2fe2b44ea..68ac4ab2d926005a5a729017c1bcb70a30634bd8 100644 (file)
--- a/merge-cache.c
+++ b/merge-cache.c
@@ -25,29 +25,6 @@ static void run_program(void)
                die("merge program failed");
 }
 
-static char *create_temp_file(int stage, unsigned char *sha1)
-{
-       static char template[4][50];
-       char *path = template[stage];
-       void *buf;
-       char type[100];
-       unsigned long size;
-       int fd;
-
-       buf = read_sha1_file(sha1, type, &size);
-       if (!buf || strcmp(type, "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)
-               die("unable to write temp-file");
-       close(fd);
-       return path;
-}
-
 static int merge_entry(int pos, const char *path)
 {
        int found;
@@ -61,13 +38,15 @@ static int merge_entry(int pos, const char *path)
        arguments[4] = path;
        found = 0;
        do {
+               static char hexbuf[4][60];
                struct cache_entry *ce = active_cache[pos];
                int stage = ce_stage(ce);
 
                if (strcmp(ce->name, path))
                        break;
                found++;
-               arguments[stage] = create_temp_file(stage, ce->sha1);
+               strcpy(hexbuf[stage], sha1_to_hex(ce->sha1));
+               arguments[stage] = hexbuf[stage];
        } while (++pos < active_nr);
        if (!found)
                die("merge-cache: %s not in the cache", path);