1 files changed, 0 insertions, 627 deletions

diff --git a/third_party/git/send-pack.c b/third_party/git/send-pack.c
deleted file mode 100644
index 6dc16c3211..0000000000
--- a/third_party/git/send-pack.c
+++ /dev/null
@@ -1,627 +0,0 @@
-#include "builtin.h"
-#include "config.h"
-#include "commit.h"
-#include "refs.h"
-#include "object-store.h"
-#include "pkt-line.h"
-#include "sideband.h"
-#include "run-command.h"
-#include "remote.h"
-#include "connect.h"
-#include "send-pack.h"
-#include "quote.h"
-#include "transport.h"
-#include "version.h"
-#include "sha1-array.h"
-#include "gpg-interface.h"
-#include "cache.h"
-
-int option_parse_push_signed(const struct option *opt,
-			     const char *arg, int unset)
-{
-	if (unset) {
-		*(int *)(opt->value) = SEND_PACK_PUSH_CERT_NEVER;
-		return 0;
-	}
-	switch (git_parse_maybe_bool(arg)) {
-	case 1:
-		*(int *)(opt->value) = SEND_PACK_PUSH_CERT_ALWAYS;
-		return 0;
-	case 0:
-		*(int *)(opt->value) = SEND_PACK_PUSH_CERT_NEVER;
-		return 0;
-	}
-	if (!strcasecmp("if-asked", arg)) {
-		*(int *)(opt->value) = SEND_PACK_PUSH_CERT_IF_ASKED;
-		return 0;
-	}
-	die("bad %s argument: %s", opt->long_name, arg);
-}
-
-static void feed_object(const struct object_id *oid, FILE *fh, int negative)
-{
-	if (negative && !has_object_file(oid))
-		return;
-
-	if (negative)
-		putc('^', fh);
-	fputs(oid_to_hex(oid), fh);
-	putc('\n', fh);
-}
-
-/*
- * Make a pack stream and spit it out into file descriptor fd
- */
-static int pack_objects(int fd, struct ref *refs, struct oid_array *extra, struct send_pack_args *args)
-{
-	/*
-	 * The child becomes pack-objects --revs; we feed
-	 * the revision parameters to it via its stdin and
-	 * let its stdout go back to the other end.
-	 */
-	struct child_process po = CHILD_PROCESS_INIT;
-	FILE *po_in;
-	int i;
-	int rc;
-
-	argv_array_push(&po.args, "pack-objects");
-	argv_array_push(&po.args, "--all-progress-implied");
-	argv_array_push(&po.args, "--revs");
-	argv_array_push(&po.args, "--stdout");
-	if (args->use_thin_pack)
-		argv_array_push(&po.args, "--thin");
-	if (args->use_ofs_delta)
-		argv_array_push(&po.args, "--delta-base-offset");
-	if (args->quiet || !args->progress)
-		argv_array_push(&po.args, "-q");
-	if (args->progress)
-		argv_array_push(&po.args, "--progress");
-	if (is_repository_shallow(the_repository))
-		argv_array_push(&po.args, "--shallow");
-	po.in = -1;
-	po.out = args->stateless_rpc ? -1 : fd;
-	po.git_cmd = 1;
-	if (start_command(&po))
-		die_errno("git pack-objects failed");
-
-	/*
-	 * We feed the pack-objects we just spawned with revision
-	 * parameters by writing to the pipe.
-	 */
-	po_in = xfdopen(po.in, "w");
-	for (i = 0; i < extra->nr; i++)
-		feed_object(&extra->oid[i], po_in, 1);
-
-	while (refs) {
-		if (!is_null_oid(&refs->old_oid))
-			feed_object(&refs->old_oid, po_in, 1);
-		if (!is_null_oid(&refs->new_oid))
-			feed_object(&refs->new_oid, po_in, 0);
-		refs = refs->next;
-	}
-
-	fflush(po_in);
-	if (ferror(po_in))
-		die_errno("error writing to pack-objects");
-	fclose(po_in);
-
-	if (args->stateless_rpc) {
-		char *buf = xmalloc(LARGE_PACKET_MAX);
-		while (1) {
-			ssize_t n = xread(po.out, buf, LARGE_PACKET_MAX);
-			if (n <= 0)
-				break;
-			send_sideband(fd, -1, buf, n, LARGE_PACKET_MAX);
-		}
-		free(buf);
-		close(po.out);
-		po.out = -1;
-	}
-
-	rc = finish_command(&po);
-	if (rc) {
-		/*
-		 * For a normal non-zero exit, we assume pack-objects wrote
-		 * something useful to stderr. For death by signal, though,
-		 * we should mention it to the user. The exception is SIGPIPE
-		 * (141), because that's a normal occurrence if the remote end
-		 * hangs up (and we'll report that by trying to read the unpack
-		 * status).
-		 */
-		if (rc > 128 && rc != 141)
-			error("pack-objects died of signal %d", rc - 128);
-		return -1;
-	}
-	return 0;
-}
-
-static int receive_unpack_status(struct packet_reader *reader)
-{
-	if (packet_reader_read(reader) != PACKET_READ_NORMAL)
-		return error(_("unexpected flush packet while reading remote unpack status"));
-	if (!skip_prefix(reader->line, "unpack ", &reader->line))
-		return error(_("unable to parse remote unpack status: %s"), reader->line);
-	if (strcmp(reader->line, "ok"))
-		return error(_("remote unpack failed: %s"), reader->line);
-	return 0;
-}
-
-static int receive_status(struct packet_reader *reader, struct ref *refs)
-{
-	struct ref *hint;
-	int ret;
-
-	hint = NULL;
-	ret = receive_unpack_status(reader);
-	while (1) {
-		const char *refname;
-		char *msg;
-		if (packet_reader_read(reader) != PACKET_READ_NORMAL)
-			break;
-		if (!starts_with(reader->line, "ok ") && !starts_with(reader->line, "ng ")) {
-			error("invalid ref status from remote: %s", reader->line);
-			ret = -1;
-			break;
-		}
-
-		refname = reader->line + 3;
-		msg = strchr(refname, ' ');
-		if (msg)
-			*msg++ = '\0';
-
-		/* first try searching at our hint, falling back to all refs */
-		if (hint)
-			hint = find_ref_by_name(hint, refname);
-		if (!hint)
-			hint = find_ref_by_name(refs, refname);
-		if (!hint) {
-			warning("remote reported status on unknown ref: %s",
-					refname);
-			continue;
-		}
-		if (hint->status != REF_STATUS_EXPECTING_REPORT) {
-			warning("remote reported status on unexpected ref: %s",
-					refname);
-			continue;
-		}
-
-		if (reader->line[0] == 'o' && reader->line[1] == 'k')
-			hint->status = REF_STATUS_OK;
-		else {
-			hint->status = REF_STATUS_REMOTE_REJECT;
-			ret = -1;
-		}
-		hint->remote_status = xstrdup_or_null(msg);
-		/* start our next search from the next ref */
-		hint = hint->next;
-	}
-	return ret;
-}
-
-static int sideband_demux(int in, int out, void *data)
-{
-	int *fd = data, ret;
-	if (async_with_fork())
-		close(fd[1]);
-	ret = recv_sideband("send-pack", fd[0], out);
-	close(out);
-	return ret;
-}
-
-static int advertise_shallow_grafts_cb(const struct commit_graft *graft, void *cb)
-{
-	struct strbuf *sb = cb;
-	if (graft->nr_parent == -1)
-		packet_buf_write(sb, "shallow %s\n", oid_to_hex(&graft->oid));
-	return 0;
-}
-
-static void advertise_shallow_grafts_buf(struct strbuf *sb)
-{
-	if (!is_repository_shallow(the_repository))
-		return;
-	for_each_commit_graft(advertise_shallow_grafts_cb, sb);
-}
-
-#define CHECK_REF_NO_PUSH -1
-#define CHECK_REF_STATUS_REJECTED -2
-#define CHECK_REF_UPTODATE -3
-static int check_to_send_update(const struct ref *ref, const struct send_pack_args *args)
-{
-	if (!ref->peer_ref && !args->send_mirror)
-		return CHECK_REF_NO_PUSH;
-
-	/* Check for statuses set by set_ref_status_for_push() */
-	switch (ref->status) {
-	case REF_STATUS_REJECT_NONFASTFORWARD:
-	case REF_STATUS_REJECT_ALREADY_EXISTS:
-	case REF_STATUS_REJECT_FETCH_FIRST:
-	case REF_STATUS_REJECT_NEEDS_FORCE:
-	case REF_STATUS_REJECT_STALE:
-	case REF_STATUS_REJECT_NODELETE:
-		return CHECK_REF_STATUS_REJECTED;
-	case REF_STATUS_UPTODATE:
-		return CHECK_REF_UPTODATE;
-	default:
-		return 0;
-	}
-}
-
-/*
- * the beginning of the next line, or the end of buffer.
- *
- * NEEDSWORK: perhaps move this to git-compat-util.h or somewhere and
- * convert many similar uses found by "git grep -A4 memchr".
- */
-static const char *next_line(const char *line, size_t len)
-{
-	const char *nl = memchr(line, '\n', len);
-	if (!nl)
-		return line + len; /* incomplete line */
-	return nl + 1;
-}
-
-static int generate_push_cert(struct strbuf *req_buf,
-			      const struct ref *remote_refs,
-			      struct send_pack_args *args,
-			      const char *cap_string,
-			      const char *push_cert_nonce)
-{
-	const struct ref *ref;
-	struct string_list_item *item;
-	char *signing_key = xstrdup(get_signing_key());
-	const char *cp, *np;
-	struct strbuf cert = STRBUF_INIT;
-	int update_seen = 0;
-
-	strbuf_addstr(&cert, "certificate version 0.1\n");
-	strbuf_addf(&cert, "pusher %s ", signing_key);
-	datestamp(&cert);
-	strbuf_addch(&cert, '\n');
-	if (args->url && *args->url) {
-		char *anon_url = transport_anonymize_url(args->url);
-		strbuf_addf(&cert, "pushee %s\n", anon_url);
-		free(anon_url);
-	}
-	if (push_cert_nonce[0])
-		strbuf_addf(&cert, "nonce %s\n", push_cert_nonce);
-	if (args->push_options)
-		for_each_string_list_item(item, args->push_options)
-			strbuf_addf(&cert, "push-option %s\n", item->string);
-	strbuf_addstr(&cert, "\n");
-
-	for (ref = remote_refs; ref; ref = ref->next) {
-		if (check_to_send_update(ref, args) < 0)
-			continue;
-		update_seen = 1;
-		strbuf_addf(&cert, "%s %s %s\n",
-			    oid_to_hex(&ref->old_oid),
-			    oid_to_hex(&ref->new_oid),
-			    ref->name);
-	}
-	if (!update_seen)
-		goto free_return;
-
-	if (sign_buffer(&cert, &cert, signing_key))
-		die(_("failed to sign the push certificate"));
-
-	packet_buf_write(req_buf, "push-cert%c%s", 0, cap_string);
-	for (cp = cert.buf; cp < cert.buf + cert.len; cp = np) {
-		np = next_line(cp, cert.buf + cert.len - cp);
-		packet_buf_write(req_buf,
-				 "%.*s", (int)(np - cp), cp);
-	}
-	packet_buf_write(req_buf, "push-cert-end\n");
-
-free_return:
-	free(signing_key);
-	strbuf_release(&cert);
-	return update_seen;
-}
-
-
-static int atomic_push_failure(struct send_pack_args *args,
-			       struct ref *remote_refs,
-			       struct ref *failing_ref)
-{
-	struct ref *ref;
-	/* Mark other refs as failed */
-	for (ref = remote_refs; ref; ref = ref->next) {
-		if (!ref->peer_ref && !args->send_mirror)
-			continue;
-
-		switch (ref->status) {
-		case REF_STATUS_EXPECTING_REPORT:
-			ref->status = REF_STATUS_ATOMIC_PUSH_FAILED;
-			continue;
-		default:
-			break; /* do nothing */
-		}
-	}
-	return error("atomic push failed for ref %s. status: %d\n",
-		     failing_ref->name, failing_ref->status);
-}
-
-#define NONCE_LEN_LIMIT 256
-
-static void reject_invalid_nonce(const char *nonce, int len)
-{
-	int i = 0;
-
-	if (NONCE_LEN_LIMIT <= len)
-		die("the receiving end asked to sign an invalid nonce <%.*s>",
-		    len, nonce);
-
-	for (i = 0; i < len; i++) {
-		int ch = nonce[i] & 0xFF;
-		if (isalnum(ch) ||
-		    ch == '-' || ch == '.' ||
-		    ch == '/' || ch == '+' ||
-		    ch == '=' || ch == '_')
-			continue;
-		die("the receiving end asked to sign an invalid nonce <%.*s>",
-		    len, nonce);
-	}
-}
-
-int send_pack(struct send_pack_args *args,
-	      int fd[], struct child_process *conn,
-	      struct ref *remote_refs,
-	      struct oid_array *extra_have)
-{
-	int in = fd[0];
-	int out = fd[1];
-	struct strbuf req_buf = STRBUF_INIT;
-	struct strbuf cap_buf = STRBUF_INIT;
-	struct ref *ref;
-	int need_pack_data = 0;
-	int allow_deleting_refs = 0;
-	int status_report = 0;
-	int use_sideband = 0;
-	int quiet_supported = 0;
-	int agent_supported = 0;
-	int use_atomic = 0;
-	int atomic_supported = 0;
-	int use_push_options = 0;
-	int push_options_supported = 0;
-	unsigned cmds_sent = 0;
-	int ret;
-	struct async demux;
-	const char *push_cert_nonce = NULL;
-	struct packet_reader reader;
-
-	/* Does the other end support the reporting? */
-	if (server_supports("report-status"))
-		status_report = 1;
-	if (server_supports("delete-refs"))
-		allow_deleting_refs = 1;
-	if (server_supports("ofs-delta"))
-		args->use_ofs_delta = 1;
-	if (server_supports("side-band-64k"))
-		use_sideband = 1;
-	if (server_supports("quiet"))
-		quiet_supported = 1;
-	if (server_supports("agent"))
-		agent_supported = 1;
-	if (server_supports("no-thin"))
-		args->use_thin_pack = 0;
-	if (server_supports("atomic"))
-		atomic_supported = 1;
-	if (server_supports("push-options"))
-		push_options_supported = 1;
-
-	if (args->push_cert != SEND_PACK_PUSH_CERT_NEVER) {
-		int len;
-		push_cert_nonce = server_feature_value("push-cert", &len);
-		if (push_cert_nonce) {
-			reject_invalid_nonce(push_cert_nonce, len);
-			push_cert_nonce = xmemdupz(push_cert_nonce, len);
-		} else if (args->push_cert == SEND_PACK_PUSH_CERT_ALWAYS) {
-			die(_("the receiving end does not support --signed push"));
-		} else if (args->push_cert == SEND_PACK_PUSH_CERT_IF_ASKED) {
-			warning(_("not sending a push certificate since the"
-				  " receiving end does not support --signed"
-				  " push"));
-		}
-	}
-
-	if (!remote_refs) {
-		fprintf(stderr, "No refs in common and none specified; doing nothing.\n"
-			"Perhaps you should specify a branch such as 'master'.\n");
-		return 0;
-	}
-	if (args->atomic && !atomic_supported)
-		die(_("the receiving end does not support --atomic push"));
-
-	use_atomic = atomic_supported && args->atomic;
-
-	if (args->push_options && !push_options_supported)
-		die(_("the receiving end does not support push options"));
-
-	use_push_options = push_options_supported && args->push_options;
-
-	if (status_report)
-		strbuf_addstr(&cap_buf, " report-status");
-	if (use_sideband)
-		strbuf_addstr(&cap_buf, " side-band-64k");
-	if (quiet_supported && (args->quiet || !args->progress))
-		strbuf_addstr(&cap_buf, " quiet");
-	if (use_atomic)
-		strbuf_addstr(&cap_buf, " atomic");
-	if (use_push_options)
-		strbuf_addstr(&cap_buf, " push-options");
-	if (agent_supported)
-		strbuf_addf(&cap_buf, " agent=%s", git_user_agent_sanitized());
-
-	/*
-	 * NEEDSWORK: why does delete-refs have to be so specific to
-	 * send-pack machinery that set_ref_status_for_push() cannot
-	 * set this bit for us???
-	 */
-	for (ref = remote_refs; ref; ref = ref->next)
-		if (ref->deletion && !allow_deleting_refs)
-			ref->status = REF_STATUS_REJECT_NODELETE;
-
-	if (!args->dry_run)
-		advertise_shallow_grafts_buf(&req_buf);
-
-	if (!args->dry_run && push_cert_nonce)
-		cmds_sent = generate_push_cert(&req_buf, remote_refs, args,
-					       cap_buf.buf, push_cert_nonce);
-
-	/*
-	 * Clear the status for each ref and see if we need to send
-	 * the pack data.
-	 */
-	for (ref = remote_refs; ref; ref = ref->next) {
-		switch (check_to_send_update(ref, args)) {
-		case 0: /* no error */
-			break;
-		case CHECK_REF_STATUS_REJECTED:
-			/*
-			 * When we know the server would reject a ref update if
-			 * we were to send it and we're trying to send the refs
-			 * atomically, abort the whole operation.
-			 */
-			if (use_atomic) {
-				strbuf_release(&req_buf);
-				strbuf_release(&cap_buf);
-				return atomic_push_failure(args, remote_refs, ref);
-			}
-			/* else fallthrough */
-		default:
-			continue;
-		}
-		if (!ref->deletion)
-			need_pack_data = 1;
-
-		if (args->dry_run || !status_report)
-			ref->status = REF_STATUS_OK;
-		else
-			ref->status = REF_STATUS_EXPECTING_REPORT;
-	}
-
-	/*
-	 * Finally, tell the other end!
-	 */
-	for (ref = remote_refs; ref; ref = ref->next) {
-		char *old_hex, *new_hex;
-
-		if (args->dry_run || push_cert_nonce)
-			continue;
-
-		if (check_to_send_update(ref, args) < 0)
-			continue;
-
-		old_hex = oid_to_hex(&ref->old_oid);
-		new_hex = oid_to_hex(&ref->new_oid);
-		if (!cmds_sent) {
-			packet_buf_write(&req_buf,
-					 "%s %s %s%c%s",
-					 old_hex, new_hex, ref->name, 0,
-					 cap_buf.buf);
-			cmds_sent = 1;
-		} else {
-			packet_buf_write(&req_buf, "%s %s %s",
-					 old_hex, new_hex, ref->name);
-		}
-	}
-
-	if (use_push_options) {
-		struct string_list_item *item;
-
-		packet_buf_flush(&req_buf);
-		for_each_string_list_item(item, args->push_options)
-			packet_buf_write(&req_buf, "%s", item->string);
-	}
-
-	if (args->stateless_rpc) {
-		if (!args->dry_run && (cmds_sent || is_repository_shallow(the_repository))) {
-			packet_buf_flush(&req_buf);
-			send_sideband(out, -1, req_buf.buf, req_buf.len, LARGE_PACKET_MAX);
-		}
-	} else {
-		write_or_die(out, req_buf.buf, req_buf.len);
-		packet_flush(out);
-	}
-	strbuf_release(&req_buf);
-	strbuf_release(&cap_buf);
-
-	if (use_sideband && cmds_sent) {
-		memset(&demux, 0, sizeof(demux));
-		demux.proc = sideband_demux;
-		demux.data = fd;
-		demux.out = -1;
-		demux.isolate_sigpipe = 1;
-		if (start_async(&demux))
-			die("send-pack: unable to fork off sideband demultiplexer");
-		in = demux.out;
-	}
-
-	packet_reader_init(&reader, in, NULL, 0,
-			   PACKET_READ_CHOMP_NEWLINE |
-			   PACKET_READ_DIE_ON_ERR_PACKET);
-
-	if (need_pack_data && cmds_sent) {
-		if (pack_objects(out, remote_refs, extra_have, args) < 0) {
-			for (ref = remote_refs; ref; ref = ref->next)
-				ref->status = REF_STATUS_NONE;
-			if (args->stateless_rpc)
-				close(out);
-			if (git_connection_is_socket(conn))
-				shutdown(fd[0], SHUT_WR);
-
-			/*
-			 * Do not even bother with the return value; we know we
-			 * are failing, and just want the error() side effects.
-			 */
-			if (status_report)
-				receive_unpack_status(&reader);
-
-			if (use_sideband) {
-				close(demux.out);
-				finish_async(&demux);
-			}
-			fd[1] = -1;
-			return -1;
-		}
-		if (!args->stateless_rpc)
-			/* Closed by pack_objects() via start_command() */
-			fd[1] = -1;
-	}
-	if (args->stateless_rpc && cmds_sent)
-		packet_flush(out);
-
-	if (status_report && cmds_sent)
-		ret = receive_status(&reader, remote_refs);
-	else
-		ret = 0;
-	if (args->stateless_rpc)
-		packet_flush(out);
-
-	if (use_sideband && cmds_sent) {
-		close(demux.out);
-		if (finish_async(&demux)) {
-			error("error in sideband demultiplexer");
-			ret = -1;
-		}
-	}
-
-	if (ret < 0)
-		return ret;
-
-	if (args->porcelain)
-		return 0;
-
-	for (ref = remote_refs; ref; ref = ref->next) {
-		switch (ref->status) {
-		case REF_STATUS_NONE:
-		case REF_STATUS_UPTODATE:
-		case REF_STATUS_OK:
-			break;
-		default:
-			return -1;
-		}
-	}
-	return 0;
-}