root/builtin/bundle.c

DEFINITIONS

1. cmd_bundle

#include "builtin.h"
#include "cache.h"
#include "bundle.h"

/*
 * Basic handler for bundle files to connect repositories via sneakernet.
 * Invocation must include action.
 * This function can create a bundle or provide information on an existing
 * bundle supporting "fetch", "pull", and "ls-remote".
 */

static const char builtin_bundle_usage[] =
  "git bundle create <file> <git-rev-list args>\n"
  "   or: git bundle verify <file>\n"
  "   or: git bundle list-heads <file> [<refname>...]\n"
  "   or: git bundle unbundle <file> [<refname>...]";

int cmd_bundle(int argc, const char **argv, const char *prefix)
{
        struct bundle_header header;
        const char *cmd, *bundle_file;
        int bundle_fd = -1;
        char buffer[PATH_MAX];

        if (argc < 3)
                usage(builtin_bundle_usage);

        cmd = argv[1];
        bundle_file = argv[2];
        argc -= 2;
        argv += 2;

        if (prefix && bundle_file[0] != '/') {
                snprintf(buffer, sizeof(buffer), "%s/%s", prefix, bundle_file);
                bundle_file = buffer;
        }

        memset(&header, 0, sizeof(header));
        if (strcmp(cmd, "create") && (bundle_fd =
                                read_bundle_header(bundle_file, &header)) < 0)
                return 1;

        if (!strcmp(cmd, "verify")) {
                close(bundle_fd);
                if (argc != 1) {
                        usage(builtin_bundle_usage);
                        return 1;
                }
                if (verify_bundle(&header, 1))
                        return 1;
                fprintf(stderr, _("%s is okay\n"), bundle_file);
                return 0;
        }
        if (!strcmp(cmd, "list-heads")) {
                close(bundle_fd);
                return !!list_bundle_refs(&header, argc, argv);
        }
        if (!strcmp(cmd, "create")) {
                if (argc < 2) {
                        usage(builtin_bundle_usage);
                        return 1;
                }
                if (!startup_info->have_repository)
                        die(_("Need a repository to create a bundle."));
                return !!create_bundle(&header, bundle_file, argc, argv);
        } else if (!strcmp(cmd, "unbundle")) {
                if (!startup_info->have_repository)
                        die(_("Need a repository to unbundle."));
                return !!unbundle(&header, bundle_fd, 0) ||
                        list_bundle_refs(&header, argc, argv);
        } else
                usage(builtin_bundle_usage);
}