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Diffstat (limited to 'archive-zip.c')
-rw-r--r--archive-zip.c70
1 files changed, 41 insertions, 29 deletions
diff --git a/archive-zip.c b/archive-zip.c
index d3aef532b7..ae3d67f9d3 100644
--- a/archive-zip.c
+++ b/archive-zip.c
@@ -5,6 +5,8 @@
#include "archive.h"
#include "streaming.h"
#include "utf8.h"
+#include "userdiff.h"
+#include "xdiff-interface.h"
static int zip_date;
static int zip_time;
@@ -111,16 +113,16 @@ 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;
void *buffer;
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);
@@ -188,6 +190,16 @@ static int has_only_ascii(const char *s)
}
}
+static int entry_is_binary(const char *path, const void *buffer, size_t size)
+{
+ struct userdiff_driver *driver = userdiff_find_by_path(path);
+ if (!driver)
+ driver = userdiff_find_by_name("default");
+ if (driver->binary != -1)
+ return driver->binary;
+ return buffer_is_binary(buffer, size);
+}
+
#define STREAM_BUFFER_SIZE (1024 * 16)
static int write_zip_entry(struct archiver_args *args,
@@ -209,6 +221,8 @@ static int write_zip_entry(struct archiver_args *args,
struct git_istream *stream = NULL;
unsigned long flags = 0;
unsigned long size;
+ int is_binary = -1;
+ const char *path_without_prefix = path + args->baselen;
crc = crc32(0, NULL, 0);
@@ -231,7 +245,6 @@ static int write_zip_entry(struct archiver_args *args,
size = 0;
compressed_size = 0;
buffer = NULL;
- size = 0;
} else if (S_ISREG(mode) || S_ISLNK(mode)) {
enum object_type type = sha1_object_info(sha1, &size);
@@ -240,7 +253,6 @@ 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) {
@@ -257,22 +269,22 @@ static int write_zip_entry(struct archiver_args *args,
return error("cannot read %s",
sha1_to_hex(sha1));
crc = crc32(crc, buffer, size);
+ is_binary = entry_is_binary(path_without_prefix,
+ 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;
}
@@ -303,7 +315,6 @@ static int write_zip_entry(struct archiver_args *args,
copy_le16(dirent.extra_length, ZIP_EXTRA_MTIME_SIZE);
copy_le16(dirent.comment_length, 0);
copy_le16(dirent.disk, 0);
- copy_le16(dirent.attr1, 0);
copy_le32(dirent.attr2, attr2);
copy_le32(dirent.offset, zip_offset);
@@ -331,6 +342,9 @@ static int write_zip_entry(struct archiver_args *args,
if (readlen <= 0)
break;
crc = crc32(crc, buf, readlen);
+ if (is_binary == -1)
+ is_binary = entry_is_binary(path_without_prefix,
+ buf, readlen);
write_or_die(1, buf, readlen);
}
close_istream(stream);
@@ -352,8 +366,7 @@ static int write_zip_entry(struct archiver_args *args,
size_t out_len;
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;
@@ -364,19 +377,19 @@ static int write_zip_entry(struct archiver_args *args,
if (readlen <= 0)
break;
crc = crc32(crc, buf, readlen);
+ if (is_binary == -1)
+ is_binary = entry_is_binary(path_without_prefix,
+ buf, readlen);
zstream.next_in = buf;
zstream.avail_in = readlen;
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 +407,8 @@ 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;
@@ -414,6 +424,8 @@ static int write_zip_entry(struct archiver_args *args,
free(deflated);
free(buffer);
+ copy_le16(dirent.attr1, !is_binary);
+
memcpy(zip_dir + zip_dir_offset, &dirent, ZIP_DIR_HEADER_SIZE);
zip_dir_offset += ZIP_DIR_HEADER_SIZE;
memcpy(zip_dir + zip_dir_offset, path, pathlen);
@@ -436,12 +448,12 @@ static void write_zip_trailer(const unsigned char *sha1)
copy_le16(trailer.entries, zip_dir_entries);
copy_le32(trailer.size, zip_dir_offset);
copy_le32(trailer.offset, zip_offset);
- copy_le16(trailer.comment_length, sha1 ? 40 : 0);
+ copy_le16(trailer.comment_length, sha1 ? GIT_SHA1_HEXSZ : 0);
write_or_die(1, zip_dir, zip_dir_offset);
write_or_die(1, &trailer, ZIP_DIR_TRAILER_SIZE);
if (sha1)
- write_or_die(1, sha1_to_hex(sha1), 40);
+ write_or_die(1, sha1_to_hex(sha1), GIT_SHA1_HEXSZ);
}
static void dos_time(time_t *time, int *dos_date, int *dos_time)
generated by cgit v1.2.3 (git 2.25.1) at 2024-10-09 12:28:53 +0000