* Copyright (c) 2006 Rene Scharfe
*/
#include "cache.h"
-#include "commit.h"
-#include "blob.h"
-#include "tree.h"
-#include "quote.h"
-#include "builtin.h"
#include "archive.h"
-static int verbose;
static int zip_date;
static int zip_time;
-static const struct commit *commit;
-static size_t base_len;
static unsigned char *zip_dir;
static unsigned int zip_dir_size;
}
static void *zlib_deflate(void *data, unsigned long size,
- unsigned long *compressed_size)
+ int compression_level, unsigned long *compressed_size)
{
z_stream stream;
unsigned long maxsize;
int result;
memset(&stream, 0, sizeof(stream));
- deflateInit(&stream, zlib_compression_level);
+ deflateInit(&stream, compression_level);
maxsize = deflateBound(&stream, size);
buffer = xmalloc(maxsize);
return buffer;
}
-static char *construct_path(const char *base, int baselen,
- const char *filename, int isdir, int *pathlen)
-{
- int filenamelen = strlen(filename);
- int len = baselen + filenamelen;
- char *path, *p;
-
- if (isdir)
- len++;
- p = path = xmalloc(len + 1);
-
- memcpy(p, base, baselen);
- p += baselen;
- memcpy(p, filename, filenamelen);
- p += filenamelen;
- if (isdir)
- *p++ = '/';
- *p = '\0';
-
- *pathlen = len;
-
- return path;
-}
-
-static int write_zip_entry(const unsigned char *sha1,
- const char *base, int baselen,
- const char *filename, unsigned mode, int stage)
+static int write_zip_entry(struct archiver_args *args,
+ const unsigned char *sha1, const char *path, size_t pathlen,
+ unsigned int mode, void *buffer, unsigned long size)
{
struct zip_local_header header;
struct zip_dir_header dirent;
unsigned long uncompressed_size;
unsigned long crc;
unsigned long direntsize;
- unsigned long size;
int method;
- int result = -1;
- int pathlen;
unsigned char *out;
- char *path;
- enum object_type type;
- void *buffer = NULL;
void *deflated = NULL;
crc = crc32(0, NULL, 0);
- path = construct_path(base, baselen, filename, S_ISDIR(mode), &pathlen);
- if (is_archive_path_ignored(path + base_len))
- return 0;
- if (verbose)
- fprintf(stderr, "%s\n", path);
if (pathlen > 0xffff) {
- error("path too long (%d chars, SHA1: %s): %s", pathlen,
- sha1_to_hex(sha1), path);
- goto out;
+ return error("path too long (%d chars, SHA1: %s): %s",
+ (int)pathlen, sha1_to_hex(sha1), path);
}
if (S_ISDIR(mode) || S_ISGITLINK(mode)) {
method = 0;
attr2 = 16;
- result = (S_ISDIR(mode) ? READ_TREE_RECURSIVE : 0);
out = NULL;
uncompressed_size = 0;
compressed_size = 0;
method = 0;
attr2 = S_ISLNK(mode) ? ((mode | 0777) << 16) :
(mode & 0111) ? ((mode) << 16) : 0;
- if (S_ISREG(mode) && zlib_compression_level != 0)
+ if (S_ISREG(mode) && args->compression_level != 0)
method = 8;
- result = 0;
- buffer = sha1_file_to_archive(path + base_len, sha1, mode,
- &type, &size, commit);
- if (!buffer)
- die("cannot read %s", sha1_to_hex(sha1));
crc = crc32(crc, buffer, size);
out = buffer;
uncompressed_size = size;
compressed_size = size;
} else {
- error("unsupported file mode: 0%o (SHA1: %s)", mode,
- sha1_to_hex(sha1));
- goto out;
+ return error("unsupported file mode: 0%o (SHA1: %s)", mode,
+ sha1_to_hex(sha1));
}
if (method == 8) {
- deflated = zlib_deflate(buffer, size, &compressed_size);
+ 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 ... */
zip_offset += compressed_size;
}
-out:
- free(buffer);
free(deflated);
- free(path);
- return result;
+ return 0;
}
static void write_zip_trailer(const unsigned char *sha1)
int write_zip_archive(struct archiver_args *args)
{
- int plen = strlen(args->base);
+ int err;
dos_time(&args->time, &zip_date, &zip_time);
zip_dir = xmalloc(ZIP_DIRECTORY_MIN_SIZE);
zip_dir_size = ZIP_DIRECTORY_MIN_SIZE;
- verbose = args->verbose;
- commit = args->commit;
- base_len = args->base ? strlen(args->base) : 0;
-
- if (args->base && plen > 0 && args->base[plen - 1] == '/') {
- char *base = xstrdup(args->base);
- int baselen = strlen(base);
-
- while (baselen > 0 && base[baselen - 1] == '/')
- base[--baselen] = '\0';
- write_zip_entry(args->tree->object.sha1, "", 0, base, 040777, 0);
- free(base);
- }
- read_tree_recursive(args->tree, args->base, plen, 0,
- args->pathspec, write_zip_entry);
- write_zip_trailer(args->commit_sha1);
-
- free(zip_dir);
- return 0;
-}
+ err = write_archive_entries(args, write_zip_entry);
+ if (!err)
+ write_zip_trailer(args->commit_sha1);
-void *parse_extra_zip_args(int argc, const char **argv)
-{
- for (; argc > 0; argc--, argv++) {
- const char *arg = argv[0];
+ free(zip_dir);
- if (arg[0] == '-' && isdigit(arg[1]) && arg[2] == '\0')
- zlib_compression_level = arg[1] - '0';
- else
- die("Unknown argument for zip format: %s", arg);
- }
- return NULL;
+ return err;
}