1 files changed, 0 insertions, 311 deletions
diff --git a/unpack-objects.c b/unpack-objects.c
deleted file mode 100644
index 48c1ee7..0000000
--- a/unpack-objects.c
+++ /dev/null
@@ -1,311 +0,0 @@
-#include "cache.h"
-#include "object.h"
-#include "delta.h"
-#include "pack.h"
-#include "blob.h"
-#include "commit.h"
-#include "tag.h"
-#include "tree.h"
-
-#include <sys/time.h>
-
-static int dry_run, quiet;
-static const char unpack_usage[] = "git-unpack-objects [-n] [-q] < pack-file";
-
-/* We always read in 4kB chunks. */
-static unsigned char buffer[4096];
-static unsigned long offset, len, eof;
-static SHA_CTX ctx;
-
-/*
- * Make sure at least "min" bytes are available in the buffer, and
- * return the pointer to the buffer.
- */
-static void * fill(int min)
-{
-	if (min <= len)
-		return buffer + offset;
-	if (eof)
-		die("unable to fill input");
-	if (min > sizeof(buffer))
-		die("cannot fill %d bytes", min);
-	if (offset) {
-		SHA1_Update(&ctx, buffer, offset);
-		memcpy(buffer, buffer + offset, len);
-		offset = 0;
-	}
-	do {
-		int ret = xread(0, buffer + len, sizeof(buffer) - len);
-		if (ret <= 0) {
-			if (!ret)
-				die("early EOF");
-			die("read error on input: %s", strerror(errno));
-		}
-		len += ret;
-	} while (len < min);
-	return buffer;
-}
-
-static void use(int bytes)
-{
-	if (bytes > len)
-		die("used more bytes than were available");
-	len -= bytes;
-	offset += bytes;
-}
-
-static void *get_data(unsigned long size)
-{
-	z_stream stream;
-	void *buf = xmalloc(size);
-
-	memset(&stream, 0, sizeof(stream));
-
-	stream.next_out = buf;
-	stream.avail_out = size;
-	stream.next_in = fill(1);
-	stream.avail_in = len;
-	inflateInit(&stream);
-
-	for (;;) {
-		int ret = inflate(&stream, 0);
-		use(len - stream.avail_in);
-		if (stream.total_out == size && ret == Z_STREAM_END)
-			break;
-		if (ret != Z_OK)
-			die("inflate returned %d\n", ret);
-		stream.next_in = fill(1);
-		stream.avail_in = len;
-	}
-	inflateEnd(&stream);
-	return buf;
-}
-
-struct delta_info {
-	unsigned char base_sha1[20];
-	unsigned long size;
-	void *delta;
-	struct delta_info *next;
-};
-
-static struct delta_info *delta_list;
-
-static void add_delta_to_list(unsigned char *base_sha1, void *delta, unsigned long size)
-{
-	struct delta_info *info = xmalloc(sizeof(*info));
-
-	memcpy(info->base_sha1, base_sha1, 20);
-	info->size = size;
-	info->delta = delta;
-	info->next = delta_list;
-	delta_list = info;
-}
-
-static void added_object(unsigned char *sha1, const char *type, void *data, unsigned long size);
-
-static void write_object(void *buf, unsigned long size, const char *type)
-{
-	unsigned char sha1[20];
-	if (write_sha1_file(buf, size, type, sha1) < 0)
-		die("failed to write object");
-	added_object(sha1, type, buf, size);
-}
-
-static int resolve_delta(const char *type,
-	void *base, unsigned long base_size, 
-	void *delta, unsigned long delta_size)
-{
-	void *result;
-	unsigned long result_size;
-
-	result = patch_delta(base, base_size,
-			     delta, delta_size,
-			     &result_size);
-	if (!result)
-		die("failed to apply delta");
-	free(delta);
-	write_object(result, result_size, type);
-	free(result);
-	return 0;
-}
-
-static void added_object(unsigned char *sha1, const char *type, void *data, unsigned long size)
-{
-	struct delta_info **p = &delta_list;
-	struct delta_info *info;
-
-	while ((info = *p) != NULL) {
-		if (!memcmp(info->base_sha1, sha1, 20)) {
-			*p = info->next;
-			p = &delta_list;
-			resolve_delta(type, data, size, info->delta, info->size);
-			free(info);
-			continue;
-		}
-		p = &info->next;
-	}
-}
-
-static int unpack_non_delta_entry(enum object_type kind, unsigned long size)
-{
-	void *buf = get_data(size);
-	const char *type;
-
-	switch (kind) {
-	case OBJ_COMMIT: type = commit_type; break;
-	case OBJ_TREE:   type = tree_type; break;
-	case OBJ_BLOB:   type = blob_type; break;
-	case OBJ_TAG:    type = tag_type; break;
-	default: die("bad type %d", kind);
-	}
-	if (!dry_run)
-		write_object(buf, size, type);
-	free(buf);
-	return 0;
-}
-
-static int unpack_delta_entry(unsigned long delta_size)
-{
-	void *delta_data, *base;
-	unsigned long base_size;
-	char type[20];
-	unsigned char base_sha1[20];
-	int result;
-
-	memcpy(base_sha1, fill(20), 20);
-	use(20);
-
-	delta_data = get_data(delta_size);
-	if (dry_run) {
-		free(delta_data);
-		return 0;
-	}
-
-	if (!has_sha1_file(base_sha1)) {
-		add_delta_to_list(base_sha1, delta_data, delta_size);
-		return 0;
-	}
-	base = read_sha1_file(base_sha1, type, &base_size);
-	if (!base)
-		die("failed to read delta-pack base object %s", sha1_to_hex(base_sha1));
-	result = resolve_delta(type, base, base_size, delta_data, delta_size);
-	free(base);
-	return result;
-}
-
-static void unpack_one(unsigned nr, unsigned total)
-{
-	unsigned shift;
-	unsigned char *pack, c;
-	unsigned long size;
-	enum object_type type;
-
-	pack = fill(1);
-	c = *pack;
-	use(1);
-	type = (c >> 4) & 7;
-	size = (c & 15);
-	shift = 4;
-	while (c & 0x80) {
-		pack = fill(1);
-		c = *pack++;
-		use(1);
-		size += (c & 0x7f) << shift;
-		shift += 7;
-	}
-	if (!quiet) {
-		static unsigned long last_sec;
-		static unsigned last_percent;
-		struct timeval now;
-		unsigned percentage = (nr * 100) / total;
-
-		gettimeofday(&now, NULL);
-		if (percentage != last_percent || now.tv_sec != last_sec) {
-			last_sec = now.tv_sec;
-			last_percent = percentage;
-			fprintf(stderr, "%4u%% (%u/%u) done\r", percentage, nr, total);
-		}
-	}
-	switch (type) {
-	case OBJ_COMMIT:
-	case OBJ_TREE:
-	case OBJ_BLOB:
-	case OBJ_TAG:
-		unpack_non_delta_entry(type, size);
-		return;
-	case OBJ_DELTA:
-		unpack_delta_entry(size);
-		return;
-	default:
-		die("bad object type %d", type);
-	}
-}
-
-static void unpack_all(void)
-{
-	int i;
-	struct pack_header *hdr = fill(sizeof(struct pack_header));
-	unsigned nr_objects = ntohl(hdr->hdr_entries);
-
-	if (ntohl(hdr->hdr_signature) != PACK_SIGNATURE)
-		die("bad pack file");
-	if (!pack_version_ok(hdr->hdr_version))
-		die("unknown pack file version %d", ntohl(hdr->hdr_version));
-	fprintf(stderr, "Unpacking %d objects\n", nr_objects);
-
-	use(sizeof(struct pack_header));
-	for (i = 0; i < nr_objects; i++)
-		unpack_one(i+1, nr_objects);
-	if (delta_list)
-		die("unresolved deltas left after unpacking");
-}
-
-int main(int argc, char **argv)
-{
-	int i;
-	unsigned char sha1[20];
-
-	setup_git_directory();
-
-	quiet = !isatty(2);
-
-	for (i = 1 ; i < argc; i++) {
-		const char *arg = argv[i];
-
-		if (*arg == '-') {
-			if (!strcmp(arg, "-n")) {
-				dry_run = 1;
-				continue;
-			}
-			if (!strcmp(arg, "-q")) {
-				quiet = 1;
-				continue;
-			}
-			usage(unpack_usage);
-		}
-
-		/* We don't take any non-flag arguments now.. Maybe some day */
-		usage(unpack_usage);
-	}
-	SHA1_Init(&ctx);
-	unpack_all();
-	SHA1_Update(&ctx, buffer, offset);
-	SHA1_Final(sha1, &ctx);
-	if (memcmp(fill(20), sha1, 20))
-		die("final sha1 did not match");
-	use(20);
-
-	/* Write the last part of the buffer to stdout */
-	while (len) {
-		int ret = xwrite(1, buffer + offset, len);
-		if (ret <= 0)
-			break;
-		len -= ret;
-		offset += ret;
-	}
-
-	/* All done */
-	if (!quiet)
-		fprintf(stderr, "\n");
-	return 0;
-}