remote-bzr: reorganize the way 'wanted' works

diff --git a/archive-zip.c b/archive-zip.c
index d3aef532b7e4b844f2ac9995b2e987d378737079..b2c4fe0e9f9816a6cb79aa8f7a0cb59ae5bf7f8d 100644 (file)
--- a/archive-zip.c
+++ b/archive-zip.c
@@ -111,8 +111,9 @@ static void copy_le32(unsigned char *dest, unsigned int n)
        dest[3] = 0xff & (n >> 030);
 }
 
-static void *zlib_deflate(void *data, unsigned long size,
-               int compression_level, unsigned long *compressed_size)
+static void *zlib_deflate_raw(void *data, unsigned long size,
+                             int compression_level,
+                             unsigned long *compressed_size)
 {
        git_zstream stream;
        unsigned long maxsize;
@@ -120,7 +121,7 @@ static void *zlib_deflate(void *data, unsigned long size,
        int result;
 
        memset(&stream, 0, sizeof(stream));
-       git_deflate_init(&stream, compression_level);
+       git_deflate_init_raw(&stream, compression_level);
        maxsize = git_deflate_bound(&stream, size);
        buffer = xmalloc(maxsize);
 
@@ -240,7 +241,6 @@ static int write_zip_entry(struct archiver_args *args,
                        (mode & 0111) ? ((mode) << 16) : 0;
                if (S_ISREG(mode) && args->compression_level != 0 && size > 0)
                        method = 8;
-               compressed_size = (method == 0) ? size : 0;
 
                if (S_ISREG(mode) && type == OBJ_BLOB && !args->convert &&
                    size > big_file_threshold) {
@@ -259,20 +259,18 @@ static int write_zip_entry(struct archiver_args *args,
                        crc = crc32(crc, buffer, size);
                        out = buffer;
                }
+               compressed_size = (method == 0) ? size : 0;
        } else {
                return error("unsupported file mode: 0%o (SHA1: %s)", mode,
                                sha1_to_hex(sha1));
        }
 
        if (buffer && method == 8) {
-               deflated = zlib_deflate(buffer, size, args->compression_level,
-                               &compressed_size);
-               if (deflated && compressed_size - 6 < size) {
-                       /* ZLIB --> raw compressed data (see RFC 1950) */
-                       /* CMF and FLG ... */
-                       out = (unsigned char *)deflated + 2;
-                       compressed_size -= 6;   /* ... and ADLER32 */
-               } else {
+               out = deflated = zlib_deflate_raw(buffer, size,
+                                                 args->compression_level,
+                                                 &compressed_size);
+               if (!out || compressed_size >= size) {
+                       out = buffer;
                        method = 0;
                        compressed_size = size;
                }
@@ -353,7 +351,7 @@ static int write_zip_entry(struct archiver_args *args,
                unsigned char compressed[STREAM_BUFFER_SIZE * 2];
 
                memset(&zstream, 0, sizeof(zstream));
-               git_deflate_init(&zstream, args->compression_level);
+               git_deflate_init_raw(&zstream, args->compression_level);
 
                compressed_size = 0;
                zstream.next_out = compressed;
@@ -370,13 +368,10 @@ static int write_zip_entry(struct archiver_args *args,
                        result = git_deflate(&zstream, 0);
                        if (result != Z_OK)
                                die("deflate error (%d)", result);
-                       out = compressed;
-                       if (!compressed_size)
-                               out += 2;
-                       out_len = zstream.next_out - out;
+                       out_len = zstream.next_out - compressed;
 
                        if (out_len > 0) {
-                               write_or_die(1, out, out_len);
+                               write_or_die(1, compressed, out_len);
                                compressed_size += out_len;
                                zstream.next_out = compressed;
                                zstream.avail_out = sizeof(compressed);
@@ -394,11 +389,8 @@ static int write_zip_entry(struct archiver_args *args,
                        die("deflate error (%d)", result);
 
                git_deflate_end(&zstream);
-               out = compressed;
-               if (!compressed_size)
-                       out += 2;
-               out_len = zstream.next_out - out - 4;
-               write_or_die(1, out, out_len);
+               out_len = zstream.next_out - compressed;
+               write_or_die(1, compressed, out_len);
                compressed_size += out_len;
                zip_offset += compressed_size;