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authorRene Scharfe <rene.scharfe@lsrfire.ath.cx>2006-09-23 17:06:35 +0200
committerJunio C Hamano <junkio@cox.net>2006-09-23 14:00:32 -0700
commit3fc8284e2114624f2657142b3fecdc6f514b2090 (patch)
tree58759cacf0461854f42e292cf25be35a8e2ad57e /builtin-zip-tree.c
parent31756c5da8198eb09f2792230e1bed4d107f5135 (diff)
downloadgit-3fc8284e2114624f2657142b3fecdc6f514b2090.tar.gz
git-3fc8284e2114624f2657142b3fecdc6f514b2090.tar.xz
Rename builtin-zip-tree.c to archive-zip.c
Signed-off-by: Rene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: Junio C Hamano <junkio@cox.net>
Diffstat (limited to 'builtin-zip-tree.c')
-rw-r--r--builtin-zip-tree.c333
1 files changed, 0 insertions, 333 deletions
diff --git a/builtin-zip-tree.c b/builtin-zip-tree.c
deleted file mode 100644
index 3ffdad68d..000000000
--- a/builtin-zip-tree.c
+++ /dev/null
@@ -1,333 +0,0 @@
-/*
- * Copyright (c) 2006 Rene Scharfe
- */
-#include <time.h>
-#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 unsigned char *zip_dir;
-static unsigned int zip_dir_size;
-
-static unsigned int zip_offset;
-static unsigned int zip_dir_offset;
-static unsigned int zip_dir_entries;
-
-#define ZIP_DIRECTORY_MIN_SIZE (1024 * 1024)
-
-struct zip_local_header {
- unsigned char magic[4];
- unsigned char version[2];
- unsigned char flags[2];
- unsigned char compression_method[2];
- unsigned char mtime[2];
- unsigned char mdate[2];
- unsigned char crc32[4];
- unsigned char compressed_size[4];
- unsigned char size[4];
- unsigned char filename_length[2];
- unsigned char extra_length[2];
-};
-
-struct zip_dir_header {
- unsigned char magic[4];
- unsigned char creator_version[2];
- unsigned char version[2];
- unsigned char flags[2];
- unsigned char compression_method[2];
- unsigned char mtime[2];
- unsigned char mdate[2];
- unsigned char crc32[4];
- unsigned char compressed_size[4];
- unsigned char size[4];
- unsigned char filename_length[2];
- unsigned char extra_length[2];
- unsigned char comment_length[2];
- unsigned char disk[2];
- unsigned char attr1[2];
- unsigned char attr2[4];
- unsigned char offset[4];
-};
-
-struct zip_dir_trailer {
- unsigned char magic[4];
- unsigned char disk[2];
- unsigned char directory_start_disk[2];
- unsigned char entries_on_this_disk[2];
- unsigned char entries[2];
- unsigned char size[4];
- unsigned char offset[4];
- unsigned char comment_length[2];
-};
-
-static void copy_le16(unsigned char *dest, unsigned int n)
-{
- dest[0] = 0xff & n;
- dest[1] = 0xff & (n >> 010);
-}
-
-static void copy_le32(unsigned char *dest, unsigned int n)
-{
- dest[0] = 0xff & n;
- dest[1] = 0xff & (n >> 010);
- dest[2] = 0xff & (n >> 020);
- dest[3] = 0xff & (n >> 030);
-}
-
-static void *zlib_deflate(void *data, unsigned long size,
- unsigned long *compressed_size)
-{
- z_stream stream;
- unsigned long maxsize;
- void *buffer;
- int result;
-
- memset(&stream, 0, sizeof(stream));
- deflateInit(&stream, zlib_compression_level);
- maxsize = deflateBound(&stream, size);
- buffer = xmalloc(maxsize);
-
- stream.next_in = data;
- stream.avail_in = size;
- stream.next_out = buffer;
- stream.avail_out = maxsize;
-
- do {
- result = deflate(&stream, Z_FINISH);
- } while (result == Z_OK);
-
- if (result != Z_STREAM_END) {
- free(buffer);
- return NULL;
- }
-
- deflateEnd(&stream);
- *compressed_size = stream.total_out;
-
- 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)
-{
- struct zip_local_header header;
- struct zip_dir_header dirent;
- unsigned long compressed_size;
- 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;
- char type[20];
- void *buffer = NULL;
- void *deflated = NULL;
-
- crc = crc32(0, Z_NULL, 0);
-
- path = construct_path(base, baselen, filename, S_ISDIR(mode), &pathlen);
- 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;
- }
-
- if (S_ISDIR(mode)) {
- method = 0;
- result = READ_TREE_RECURSIVE;
- out = NULL;
- uncompressed_size = 0;
- compressed_size = 0;
- } else if (S_ISREG(mode)) {
- method = zlib_compression_level == 0 ? 0 : 8;
- result = 0;
- buffer = read_sha1_file(sha1, type, &size);
- 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;
- }
-
- if (method == 8) {
- deflated = zlib_deflate(buffer, size, &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 {
- method = 0;
- compressed_size = size;
- }
- }
-
- /* make sure we have enough free space in the dictionary */
- direntsize = sizeof(struct zip_dir_header) + pathlen;
- while (zip_dir_size < zip_dir_offset + direntsize) {
- zip_dir_size += ZIP_DIRECTORY_MIN_SIZE;
- zip_dir = xrealloc(zip_dir, zip_dir_size);
- }
-
- copy_le32(dirent.magic, 0x02014b50);
- copy_le16(dirent.creator_version, 0);
- copy_le16(dirent.version, 20);
- copy_le16(dirent.flags, 0);
- copy_le16(dirent.compression_method, method);
- copy_le16(dirent.mtime, zip_time);
- copy_le16(dirent.mdate, zip_date);
- copy_le32(dirent.crc32, crc);
- copy_le32(dirent.compressed_size, compressed_size);
- copy_le32(dirent.size, uncompressed_size);
- copy_le16(dirent.filename_length, pathlen);
- copy_le16(dirent.extra_length, 0);
- copy_le16(dirent.comment_length, 0);
- copy_le16(dirent.disk, 0);
- copy_le16(dirent.attr1, 0);
- copy_le32(dirent.attr2, 0);
- copy_le32(dirent.offset, zip_offset);
- memcpy(zip_dir + zip_dir_offset, &dirent, sizeof(struct zip_dir_header));
- zip_dir_offset += sizeof(struct zip_dir_header);
- memcpy(zip_dir + zip_dir_offset, path, pathlen);
- zip_dir_offset += pathlen;
- zip_dir_entries++;
-
- copy_le32(header.magic, 0x04034b50);
- copy_le16(header.version, 20);
- copy_le16(header.flags, 0);
- copy_le16(header.compression_method, method);
- copy_le16(header.mtime, zip_time);
- copy_le16(header.mdate, zip_date);
- copy_le32(header.crc32, crc);
- copy_le32(header.compressed_size, compressed_size);
- copy_le32(header.size, uncompressed_size);
- copy_le16(header.filename_length, pathlen);
- copy_le16(header.extra_length, 0);
- write_or_die(1, &header, sizeof(struct zip_local_header));
- zip_offset += sizeof(struct zip_local_header);
- write_or_die(1, path, pathlen);
- zip_offset += pathlen;
- if (compressed_size > 0) {
- write_or_die(1, out, compressed_size);
- zip_offset += compressed_size;
- }
-
-out:
- free(buffer);
- free(deflated);
- free(path);
-
- return result;
-}
-
-static void write_zip_trailer(const unsigned char *sha1)
-{
- struct zip_dir_trailer trailer;
-
- copy_le32(trailer.magic, 0x06054b50);
- copy_le16(trailer.disk, 0);
- copy_le16(trailer.directory_start_disk, 0);
- copy_le16(trailer.entries_on_this_disk, zip_dir_entries);
- 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);
-
- write_or_die(1, zip_dir, zip_dir_offset);
- write_or_die(1, &trailer, sizeof(struct zip_dir_trailer));
- if (sha1)
- write_or_die(1, sha1_to_hex(sha1), 40);
-}
-
-static void dos_time(time_t *time, int *dos_date, int *dos_time)
-{
- struct tm *t = localtime(time);
-
- *dos_date = t->tm_mday + (t->tm_mon + 1) * 32 +
- (t->tm_year + 1900 - 1980) * 512;
- *dos_time = t->tm_sec / 2 + t->tm_min * 32 + t->tm_hour * 2048;
-}
-
-int write_zip_archive(struct archiver_args *args)
-{
- int plen = strlen(args->base);
-
- 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;
-
- 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;
-}
-
-void *parse_extra_zip_args(int argc, const char **argv)
-{
- for (; argc > 0; argc--, argv++) {
- const char *arg = argv[0];
-
- 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;
-}