describe: Make --tags and --all match lightweight tags more often

diff --git a/index-pack.c b/index-pack.c
index 530d820370fb2b02a443873b8b9ddd0bcffcb5ec..d3a4d31b4e92d69eb32d1a18ebb7be1f7470d1d1 100644 (file)
--- a/index-pack.c
+++ b/index-pack.c
@@ -67,7 +67,7 @@ static struct progress *progress;
 static unsigned char input_buffer[4096];
 static unsigned int input_offset, input_len;
 static off_t consumed_bytes;
-static SHA_CTX input_ctx;
+static git_SHA_CTX input_ctx;
 static uint32_t input_crc32;
 static int input_fd, output_fd, pack_fd;
 
@@ -119,7 +119,7 @@ static void flush(void)
        if (input_offset) {
                if (output_fd >= 0)
                        write_or_die(output_fd, input_buffer, input_offset);
-               SHA1_Update(&input_ctx, input_buffer, input_offset);
+               git_SHA1_Update(&input_ctx, input_buffer, input_offset);
                memmove(input_buffer, input_buffer + input_offset, input_len);
                input_offset = 0;
        }
@@ -188,7 +188,7 @@ static char *open_pack_file(char *pack_name)
                output_fd = -1;
                pack_fd = input_fd;
        }
-       SHA1_Init(&input_ctx);
+       git_SHA1_Init(&input_ctx);
        return pack_name;
 }
 
@@ -365,8 +365,11 @@ static void *get_data_from_pack(struct object_entry *obj)
        data = src;
        do {
                ssize_t n = pread(pack_fd, data + rdy, len - rdy, from + rdy);
-               if (n <= 0)
+               if (n < 0)
                        die("cannot pread pack file: %s", strerror(errno));
+               if (!n)
+                       die("premature end of pack file, %lu bytes missing",
+                           len - rdy);
                rdy += n;
        } while (rdy < len);
        data = xmalloc(obj->size);
@@ -588,7 +591,7 @@ static void parse_pack_objects(unsigned char *sha1)
 
        /* Check pack integrity */
        flush();
-       SHA1_Final(sha1, &input_ctx);
+       git_SHA1_Final(sha1, &input_ctx);
        if (hashcmp(fill(20), sha1))
                die("pack is corrupted (SHA1 mismatch)");
        use(20);
@@ -704,6 +707,7 @@ static struct object_entry *append_obj_to_pack(struct sha1file *f,
        obj[1].idx.offset = obj[0].idx.offset + n;
        obj[1].idx.offset += write_compressed(f, buf, size);
        obj[0].idx.crc32 = crc32_end(f);
+       sha1flush(f);
        hashcpy(obj->idx.sha1, sha1);
        return obj;
 }