connected.c

#include "cache.h"
#include "run-command.h"
#include "sigchain.h"
#include "connected.h"
#include "transport.h"

int check_everything_connected(sha1_iterate_fn fn, int quiet, void *cb_data)
{
	return check_everything_connected_with_transport(fn, quiet, cb_data, NULL);
}
/*
 * If we feed all the commits we want to verify to this command
 *
 *  $ git rev-list --objects --stdin --not --all
 *
 * and if it does not error out, that means everything reachable from
 * these commits locally exists and is connected to our existing refs.
 * Note that this does _not_ validate the individual objects.
 *
 * Returns 0 if everything is connected, non-zero otherwise.
 */
static int check_everything_connected_real(sha1_iterate_fn fn,
					   int quiet,
					   void *cb_data,
					   struct transport *transport,
					   const char *shallow_file)
{
	struct child_process rev_list = CHILD_PROCESS_INIT;
	const char *argv[9];
	char commit[41];
	unsigned char sha1[20];
	int err = 0, ac = 0;
	struct packed_git *new_pack = NULL;
	size_t base_len;

	if (fn(cb_data, sha1))
		return err;

	if (transport && transport->smart_options &&
	    transport->smart_options->self_contained_and_connected &&
	    transport->pack_lockfile &&
	    strip_suffix(transport->pack_lockfile, ".keep", &base_len)) {
		struct strbuf idx_file = STRBUF_INIT;
		strbuf_add(&idx_file, transport->pack_lockfile, base_len);
		strbuf_addstr(&idx_file, ".idx");
		new_pack = add_packed_git(idx_file.buf, idx_file.len, 1);
		strbuf_release(&idx_file);
	}

	if (shallow_file) {
		argv[ac++] = "--shallow-file";
		argv[ac++] = shallow_file;
	}
	argv[ac++] = "rev-list";
	argv[ac++] = "--objects";
	argv[ac++] = "--stdin";
	argv[ac++] = "--not";
	argv[ac++] = "--all";
	if (quiet)
		argv[ac++] = "--quiet";
	argv[ac] = NULL;

	rev_list.argv = argv;
	rev_list.git_cmd = 1;
	rev_list.in = -1;
	rev_list.no_stdout = 1;
	rev_list.no_stderr = quiet;
	if (start_command(&rev_list))
		return error(_("Could not run 'git rev-list'"));