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submodule--helper: convert the bulk of cmd_add() to C
Introduce the 'add' subcommand to `submodule--helper.c` that does all the work 'submodule add' past the parsing of flags. We also remove the constness of the sm_path field of the `add_data` struct. This is needed so that it can be modified by normalize_path_copy(). As with the previous conversions, this is meant to be a faithful conversion with no modification to the behaviour of `submodule add`. Signed-off-by: Atharva Raykar <raykar.ath@gmail.com> Mentored-by: Christian Couder <christian.couder@gmail.com> Helped-by: Kaartic Sivaraam <kaartic.sivaraam@gmail.com> Mentored-by: Shourya Shukla <periperidip@gmail.com> Based-on-patch-by: Shourya Shukla <periperidip@gmail.com> Based-on-patch-by: Prathamesh Chavan <pc44800@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Atharva Raykar
Junio C Hamano
parent
ed86301f68
commit
a6226fd772
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@ -2748,7 +2748,7 @@ struct add_data {
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const char *prefix;
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const char *branch;
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const char *reference_path;
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const char *sm_path;
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char *sm_path;
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const char *sm_name;
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const char *repo;
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const char *realrepo;
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@ -3047,6 +3047,168 @@ static int add_config(int argc, const char **argv, const char *prefix)
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return 0;
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}
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static void die_on_index_match(const char *path, int force)
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{
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struct pathspec ps;
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const char *args[] = { path, NULL };
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parse_pathspec(&ps, 0, PATHSPEC_PREFER_CWD, NULL, args);
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if (read_cache_preload(NULL) < 0)
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die(_("index file corrupt"));
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if (ps.nr) {
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int i;
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char *ps_matched = xcalloc(ps.nr, 1);
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/* TODO: audit for interaction with sparse-index. */
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ensure_full_index(&the_index);
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/*
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* Since there is only one pathspec, we just need
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* need to check ps_matched[0] to know if a cache
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* entry matched.
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*/
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for (i = 0; i < active_nr; i++) {
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ce_path_match(&the_index, active_cache[i], &ps,
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ps_matched);
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if (ps_matched[0]) {
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if (!force)
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die(_("'%s' already exists in the index"),
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path);
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if (!S_ISGITLINK(active_cache[i]->ce_mode))
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die(_("'%s' already exists in the index "
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"and is not a submodule"), path);
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break;
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}
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}
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free(ps_matched);
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}
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}
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static void die_on_repo_without_commits(const char *path)
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{
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struct strbuf sb = STRBUF_INIT;
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strbuf_addstr(&sb, path);
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if (is_nonbare_repository_dir(&sb)) {
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struct object_id oid;
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if (resolve_gitlink_ref(path, "HEAD", &oid) < 0)
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die(_("'%s' does not have a commit checked out"), path);
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}
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}
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static int module_add(int argc, const char **argv, const char *prefix)
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{
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int force = 0, quiet = 0, progress = 0, dissociate = 0;
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struct add_data add_data = ADD_DATA_INIT;
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struct option options[] = {
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OPT_STRING('b', "branch", &add_data.branch, N_("branch"),
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N_("branch of repository to add as submodule")),
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OPT__FORCE(&force, N_("allow adding an otherwise ignored submodule path"),
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PARSE_OPT_NOCOMPLETE),
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OPT__QUIET(&quiet, N_("print only error messages")),
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OPT_BOOL(0, "progress", &progress, N_("force cloning progress")),
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OPT_STRING(0, "reference", &add_data.reference_path, N_("repository"),
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N_("reference repository")),
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OPT_BOOL(0, "dissociate", &dissociate, N_("borrow the objects from reference repositories")),
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OPT_STRING(0, "name", &add_data.sm_name, N_("name"),
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N_("sets the submodule’s name to the given string "
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"instead of defaulting to its path")),
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OPT_INTEGER(0, "depth", &add_data.depth, N_("depth for shallow clones")),
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OPT_END()
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};
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const char *const usage[] = {
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N_("git submodule--helper add [<options>] [--] <repository> [<path>]"),
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NULL
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};
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argc = parse_options(argc, argv, prefix, options, usage, 0);
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if (!is_writing_gitmodules_ok())
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die(_("please make sure that the .gitmodules file is in the working tree"));
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if (prefix && *prefix &&
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add_data.reference_path && !is_absolute_path(add_data.reference_path))
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add_data.reference_path = xstrfmt("%s%s", prefix, add_data.reference_path);
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if (argc == 0 || argc > 2)
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usage_with_options(usage, options);
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add_data.repo = argv[0];
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if (argc == 1)
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add_data.sm_path = git_url_basename(add_data.repo, 0, 0);
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else
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add_data.sm_path = xstrdup(argv[1]);
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if (prefix && *prefix && !is_absolute_path(add_data.sm_path))
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add_data.sm_path = xstrfmt("%s%s", prefix, add_data.sm_path);
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if (starts_with_dot_dot_slash(add_data.repo) ||
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starts_with_dot_slash(add_data.repo)) {
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if (prefix)
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die(_("Relative path can only be used from the toplevel "
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"of the working tree"));
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/* dereference source url relative to parent's url */
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add_data.realrepo = compute_submodule_clone_url(add_data.repo, NULL, 1);
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} else if (is_dir_sep(add_data.repo[0]) || strchr(add_data.repo, ':')) {
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add_data.realrepo = add_data.repo;
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} else {
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die(_("repo URL: '%s' must be absolute or begin with ./|../"),
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add_data.repo);
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}
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/*
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* normalize path:
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* multiple //; leading ./; /./; /../;
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*/
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normalize_path_copy(add_data.sm_path, add_data.sm_path);
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strip_dir_trailing_slashes(add_data.sm_path);
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die_on_index_match(add_data.sm_path, force);
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die_on_repo_without_commits(add_data.sm_path);
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if (!force) {
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int exit_code = -1;
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struct strbuf sb = STRBUF_INIT;
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struct child_process cp = CHILD_PROCESS_INIT;
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cp.git_cmd = 1;
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cp.no_stdout = 1;
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strvec_pushl(&cp.args, "add", "--dry-run", "--ignore-missing",
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"--no-warn-embedded-repo", add_data.sm_path, NULL);
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if ((exit_code = pipe_command(&cp, NULL, 0, NULL, 0, &sb, 0))) {
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strbuf_complete_line(&sb);
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fputs(sb.buf, stderr);
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free(add_data.sm_path);
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return exit_code;
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}
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strbuf_release(&sb);
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}
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if(!add_data.sm_name)
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add_data.sm_name = add_data.sm_path;
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if (check_submodule_name(add_data.sm_name))
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die(_("'%s' is not a valid submodule name"), add_data.sm_name);
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add_data.prefix = prefix;
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add_data.force = !!force;
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add_data.quiet = !!quiet;
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add_data.progress = !!progress;
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add_data.dissociate = !!dissociate;
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if (add_submodule(&add_data)) {
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free(add_data.sm_path);
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return 1;
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}
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configure_added_submodule(&add_data);
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free(add_data.sm_path);
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return 0;
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}
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#define SUPPORT_SUPER_PREFIX (1<<0)
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struct cmd_struct {
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@ -3061,6 +3223,7 @@ static struct cmd_struct commands[] = {
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{"clone", module_clone, 0},
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{"add-clone", add_clone, 0},
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{"add-config", add_config, 0},
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{"add", module_add, SUPPORT_SUPER_PREFIX},
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{"update-module-mode", module_update_module_mode, 0},
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{"update-clone", update_clone, 0},
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{"ensure-core-worktree", ensure_core_worktree, 0},
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@ -145,104 +145,12 @@ cmd_add()
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shift
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done
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if ! git submodule--helper config --check-writeable >/dev/null 2>&1
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if test -z "$1"
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then
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die "fatal: $(eval_gettext "please make sure that the .gitmodules file is in the working tree")"
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fi
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if test -n "$reference_path"
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then
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is_absolute_path "$reference_path" ||
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reference_path="$wt_prefix$reference_path"
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reference="--reference=$reference_path"
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fi
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repo=$1
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sm_path=$2
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if test -z "$sm_path"; then
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sm_path=$(printf '%s\n' "$repo" |
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sed -e 's|/$||' -e 's|:*/*\.git$||' -e 's|.*[/:]||g')
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fi
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if test -z "$repo" || test -z "$sm_path"; then
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usage
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fi
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is_absolute_path "$sm_path" || sm_path="$wt_prefix$sm_path"
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# assure repo is absolute or relative to parent
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case "$repo" in
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./*|../*)
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test -z "$wt_prefix" ||
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die "fatal: $(gettext "Relative path can only be used from the toplevel of the working tree")"
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# dereference source url relative to parent's url
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realrepo=$(git submodule--helper resolve-relative-url "$repo") || exit
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;;
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*:*|/*)
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# absolute url
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realrepo=$repo
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;;
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*)
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die "fatal: $(eval_gettext "repo URL: '\$repo' must be absolute or begin with ./|../")"
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;;
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esac
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# normalize path:
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# multiple //; leading ./; /./; /../; trailing /
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sm_path=$(printf '%s/\n' "$sm_path" |
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sed -e '
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s|//*|/|g
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s|^\(\./\)*||
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s|/\(\./\)*|/|g
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:start
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s|\([^/]*\)/\.\./||
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tstart
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s|/*$||
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')
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if test -z "$force"
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then
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git ls-files --error-unmatch "$sm_path" > /dev/null 2>&1 &&
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die "fatal: $(eval_gettext "'\$sm_path' already exists in the index")"
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else
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git ls-files -s "$sm_path" | sane_grep -v "^160000" > /dev/null 2>&1 &&
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die "fatal: $(eval_gettext "'\$sm_path' already exists in the index and is not a submodule")"
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fi
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if test -d "$sm_path" &&
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test -z $(git -C "$sm_path" rev-parse --show-cdup 2>/dev/null)
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then
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git -C "$sm_path" rev-parse --verify -q HEAD >/dev/null ||
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die "fatal: $(eval_gettext "'\$sm_path' does not have a commit checked out")"
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fi
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if test -z "$force"
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then
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dryerr=$(git add --dry-run --ignore-missing --no-warn-embedded-repo "$sm_path" 2>&1 >/dev/null)
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res=$?
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if test $res -ne 0
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then
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echo >&2 "$dryerr"
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exit $res
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fi
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fi
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if test -n "$custom_name"
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then
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sm_name="$custom_name"
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else
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sm_name="$sm_path"
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fi
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if ! git submodule--helper check-name "$sm_name"
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then
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die "fatal: $(eval_gettext "'$sm_name' is not a valid submodule name")"
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fi
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git submodule--helper add-clone ${GIT_QUIET:+--quiet} ${force:+"--force"} ${progress:+"--progress"} ${branch:+--branch "$branch"} --prefix "$wt_prefix" --path "$sm_path" --name "$sm_name" --url "$realrepo" ${reference:+"$reference"} ${dissociate:+"--dissociate"} ${depth:+"$depth"} || exit
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git submodule--helper add-config ${force:+--force} ${branch:+--branch "$branch"} --url "$repo" --resolved-url "$realrepo" --path "$sm_path" --name "$sm_name"
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git ${wt_prefix:+-C "$wt_prefix"} ${prefix:+--super-prefix "$prefix"} submodule--helper add ${GIT_QUIET:+--quiet} ${force:+--force} ${progress:+"--progress"} ${branch:+--branch "$branch"} ${reference_path:+--reference "$reference_path"} ${dissociate:+--dissociate} ${custom_name:+--name "$custom_name"} ${depth:+"$depth"} -- "$@"
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}
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#
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