1 files changed, 0 insertions, 281 deletions
diff --git a/third_party/git/bulk-checkin.c b/third_party/git/bulk-checkin.c
deleted file mode 100644
index 583aacb9e36b..000000000000
--- a/third_party/git/bulk-checkin.c
+++ /dev/null
@@ -1,281 +0,0 @@
-/*
- * Copyright (c) 2011, Google Inc.
- */
-#include "cache.h"
-#include "bulk-checkin.h"
-#include "repository.h"
-#include "csum-file.h"
-#include "pack.h"
-#include "strbuf.h"
-#include "packfile.h"
-#include "object-store.h"
-
-static struct bulk_checkin_state {
-	unsigned plugged:1;
-
-	char *pack_tmp_name;
-	struct hashfile *f;
-	off_t offset;
-	struct pack_idx_option pack_idx_opts;
-
-	struct pack_idx_entry **written;
-	uint32_t alloc_written;
-	uint32_t nr_written;
-} state;
-
-static void finish_bulk_checkin(struct bulk_checkin_state *state)
-{
-	struct object_id oid;
-	struct strbuf packname = STRBUF_INIT;
-	int i;
-
-	if (!state->f)
-		return;
-
-	if (state->nr_written == 0) {
-		close(state->f->fd);
-		unlink(state->pack_tmp_name);
-		goto clear_exit;
-	} else if (state->nr_written == 1) {
-		finalize_hashfile(state->f, oid.hash, CSUM_HASH_IN_STREAM | CSUM_FSYNC | CSUM_CLOSE);
-	} else {
-		int fd = finalize_hashfile(state->f, oid.hash, 0);
-		fixup_pack_header_footer(fd, oid.hash, state->pack_tmp_name,
-					 state->nr_written, oid.hash,
-					 state->offset);
-		close(fd);
-	}
-
-	strbuf_addf(&packname, "%s/pack/pack-", get_object_directory());
-	finish_tmp_packfile(&packname, state->pack_tmp_name,
-			    state->written, state->nr_written,
-			    &state->pack_idx_opts, oid.hash);
-	for (i = 0; i < state->nr_written; i++)
-		free(state->written[i]);
-
-clear_exit:
-	free(state->written);
-	memset(state, 0, sizeof(*state));
-
-	strbuf_release(&packname);
-	/* Make objects we just wrote available to ourselves */
-	reprepare_packed_git(the_repository);
-}
-
-static int already_written(struct bulk_checkin_state *state, struct object_id *oid)
-{
-	int i;
-
-	/* The object may already exist in the repository */
-	if (has_object_file(oid))
-		return 1;
-
-	/* Might want to keep the list sorted */
-	for (i = 0; i < state->nr_written; i++)
-		if (oideq(&state->written[i]->oid, oid))
-			return 1;
-
-	/* This is a new object we need to keep */
-	return 0;
-}
-
-/*
- * Read the contents from fd for size bytes, streaming it to the
- * packfile in state while updating the hash in ctx. Signal a failure
- * by returning a negative value when the resulting pack would exceed
- * the pack size limit and this is not the first object in the pack,
- * so that the caller can discard what we wrote from the current pack
- * by truncating it and opening a new one. The caller will then call
- * us again after rewinding the input fd.
- *
- * The already_hashed_to pointer is kept untouched by the caller to
- * make sure we do not hash the same byte when we are called
- * again. This way, the caller does not have to checkpoint its hash
- * status before calling us just in case we ask it to call us again
- * with a new pack.
- */
-static int stream_to_pack(struct bulk_checkin_state *state,
-			  git_hash_ctx *ctx, off_t *already_hashed_to,
-			  int fd, size_t size, enum object_type type,
-			  const char *path, unsigned flags)
-{
-	git_zstream s;
-	unsigned char obuf[16384];
-	unsigned hdrlen;
-	int status = Z_OK;
-	int write_object = (flags & HASH_WRITE_OBJECT);
-	off_t offset = 0;
-
-	git_deflate_init(&s, pack_compression_level);
-
-	hdrlen = encode_in_pack_object_header(obuf, sizeof(obuf), type, size);
-	s.next_out = obuf + hdrlen;
-	s.avail_out = sizeof(obuf) - hdrlen;
-
-	while (status != Z_STREAM_END) {
-		unsigned char ibuf[16384];
-
-		if (size && !s.avail_in) {
-			ssize_t rsize = size < sizeof(ibuf) ? size : sizeof(ibuf);
-			ssize_t read_result = read_in_full(fd, ibuf, rsize);
-			if (read_result < 0)
-				die_errno("failed to read from '%s'", path);
-			if (read_result != rsize)
-				die("failed to read %d bytes from '%s'",
-				    (int)rsize, path);
-			offset += rsize;
-			if (*already_hashed_to < offset) {
-				size_t hsize = offset - *already_hashed_to;
-				if (rsize < hsize)
-					hsize = rsize;
-				if (hsize)
-					the_hash_algo->update_fn(ctx, ibuf, hsize);
-				*already_hashed_to = offset;
-			}
-			s.next_in = ibuf;
-			s.avail_in = rsize;
-			size -= rsize;
-		}
-
-		status = git_deflate(&s, size ? 0 : Z_FINISH);
-
-		if (!s.avail_out || status == Z_STREAM_END) {
-			if (write_object) {
-				size_t written = s.next_out - obuf;
-
-				/* would we bust the size limit? */
-				if (state->nr_written &&
-				    pack_size_limit_cfg &&
-				    pack_size_limit_cfg < state->offset + written) {
-					git_deflate_abort(&s);
-					return -1;
-				}
-
-				hashwrite(state->f, obuf, written);
-				state->offset += written;
-			}
-			s.next_out = obuf;
-			s.avail_out = sizeof(obuf);
-		}
-
-		switch (status) {
-		case Z_OK:
-		case Z_BUF_ERROR:
-		case Z_STREAM_END:
-			continue;
-		default:
-			die("unexpected deflate failure: %d", status);
-		}
-	}
-	git_deflate_end(&s);
-	return 0;
-}
-
-/* Lazily create backing packfile for the state */
-static void prepare_to_stream(struct bulk_checkin_state *state,
-			      unsigned flags)
-{
-	if (!(flags & HASH_WRITE_OBJECT) || state->f)
-		return;
-
-	state->f = create_tmp_packfile(&state->pack_tmp_name);
-	reset_pack_idx_option(&state->pack_idx_opts);
-
-	/* Pretend we are going to write only one object */
-	state->offset = write_pack_header(state->f, 1);
-	if (!state->offset)
-		die_errno("unable to write pack header");
-}
-
-static int deflate_to_pack(struct bulk_checkin_state *state,
-			   struct object_id *result_oid,
-			   int fd, size_t size,
-			   enum object_type type, const char *path,
-			   unsigned flags)
-{
-	off_t seekback, already_hashed_to;
-	git_hash_ctx ctx;
-	unsigned char obuf[16384];
-	unsigned header_len;
-	struct hashfile_checkpoint checkpoint = {0};
-	struct pack_idx_entry *idx = NULL;
-
-	seekback = lseek(fd, 0, SEEK_CUR);
-	if (seekback == (off_t) -1)
-		return error("cannot find the current offset");
-
-	header_len = xsnprintf((char *)obuf, sizeof(obuf), "%s %" PRIuMAX,
-			       type_name(type), (uintmax_t)size) + 1;
-	the_hash_algo->init_fn(&ctx);
-	the_hash_algo->update_fn(&ctx, obuf, header_len);
-
-	/* Note: idx is non-NULL when we are writing */
-	if ((flags & HASH_WRITE_OBJECT) != 0)
-		idx = xcalloc(1, sizeof(*idx));
-
-	already_hashed_to = 0;
-
-	while (1) {
-		prepare_to_stream(state, flags);
-		if (idx) {
-			hashfile_checkpoint(state->f, &checkpoint);
-			idx->offset = state->offset;
-			crc32_begin(state->f);
-		}
-		if (!stream_to_pack(state, &ctx, &already_hashed_to,
-				    fd, size, type, path, flags))
-			break;
-		/*
-		 * Writing this object to the current pack will make
-		 * it too big; we need to truncate it, start a new
-		 * pack, and write into it.
-		 */
-		if (!idx)
-			BUG("should not happen");
-		hashfile_truncate(state->f, &checkpoint);
-		state->offset = checkpoint.offset;
-		finish_bulk_checkin(state);
-		if (lseek(fd, seekback, SEEK_SET) == (off_t) -1)
-			return error("cannot seek back");
-	}
-	the_hash_algo->final_fn(result_oid->hash, &ctx);
-	if (!idx)
-		return 0;
-
-	idx->crc32 = crc32_end(state->f);
-	if (already_written(state, result_oid)) {
-		hashfile_truncate(state->f, &checkpoint);
-		state->offset = checkpoint.offset;
-		free(idx);
-	} else {
-		oidcpy(&idx->oid, result_oid);
-		ALLOC_GROW(state->written,
-			   state->nr_written + 1,
-			   state->alloc_written);
-		state->written[state->nr_written++] = idx;
-	}
-	return 0;
-}
-
-int index_bulk_checkin(struct object_id *oid,
-		       int fd, size_t size, enum object_type type,
-		       const char *path, unsigned flags)
-{
-	int status = deflate_to_pack(&state, oid, fd, size, type,
-				     path, flags);
-	if (!state.plugged)
-		finish_bulk_checkin(&state);
-	return status;
-}
-
-void plug_bulk_checkin(void)
-{
-	state.plugged = 1;
-}
-
-void unplug_bulk_checkin(void)
-{
-	state.plugged = 0;
-	if (state.f)
-		finish_bulk_checkin(&state);
-}