Pratik Karki <predatoramigo@xxxxxxxxx> writes:
> +static void add_var(struct strbuf *buf, const char *name, const char *value)
> +{
> + strbuf_addstr(buf, name);
> + strbuf_addstr(buf, "=");
> + sq_quote_buf(buf, value);
> + strbuf_addstr(buf, "; ");
> +}
> +
> +static int run_specific_rebase(struct rebase_options *opts)
> +{
> + const char *argv[] = { NULL, NULL };
> + struct strbuf script_snippet = STRBUF_INIT;
> + int status;
> + const char *backend, *backend_func;
> +
> + add_var(&script_snippet, "GIT_DIR", absolute_path(get_git_dir()));
> +
> + add_var(&script_snippet, "upstream_name", opts->upstream_name);
> + add_var(&script_snippet, "upstream",
> + oid_to_hex(&opts->upstream->object.oid));
> + add_var(&script_snippet, "head_name", opts->head_name);
> + add_var(&script_snippet, "orig_head", oid_to_hex(&opts->orig_head));
> + add_var(&script_snippet, "onto", oid_to_hex(&opts->onto->object.oid));
> + add_var(&script_snippet, "onto_name", opts->onto_name);
> + add_var(&script_snippet, "revisions", opts->revisions);
Looks alright.
> + switch (opts->type) {
> + case REBASE_AM:
> +...
> + default:
> + BUG("Unhandled rebase type %d", opts->type);
> + break;
> + }
Better.
> + strbuf_addf(&script_snippet,
> + ". git-rebase--common && . %s && %s",
> + backend, backend_func);
> + argv[0] = script_snippet.buf;
> +
> + status = run_command_v_opt(argv, RUN_USING_SHELL);
This used to use run_command_v_opt_cd_env() to pass extra
environment but now we can do a simpler one. As cmd_rebase()
has called setup_git_directory() to chdir to the top level of
the working tree, we just want to .-source the backend within
the current working directory, so loss of cd is also good ;-)
> + if (status == 0)
> + finish_rebase(opts);
> + else if (status == 2) {
> + struct strbuf dir = STRBUF_INIT;
> +
> + apply_autostash();
> + strbuf_addstr(&dir, opts->state_dir);
> + remove_dir_recursively(&dir, 0);
> + strbuf_release(&dir);
> + die("Nothing to do");
> + }
> +
> + strbuf_release(&script_snippet);
> +
> + return status ? -1 : 0;
> +}
> +
> int cmd_rebase(int argc, const char **argv, const char *prefix)
> {
> + struct rebase_options options = { -1 };
The first field of this struct is "enum rebase_type" defined without
"REBASE_TYPE_UNSPECIFIED = -1" in it. It probably makes sense to
add that constant there so that you can spell this value out.
> @@ -52,5 +194,98 @@ int cmd_rebase(int argc, const char **argv, const char *prefix)
> trace_repo_setup(prefix);
> setup_work_tree();
>
> - die("TODO");
> + options.type = REBASE_AM;
> +
> + switch (options.type) {
> + case REBASE_AM:
> + options.state_dir = apply_dir();
> + break;
> + case REBASE_MERGE:
> + case REBASE_INTERACTIVE:
> + case REBASE_PRESERVE_MERGES:
> + options.state_dir = merge_dir();
> + break;
Have "default:" here that barfs with BUG() to help future
introduction of bugs as the code to set options.type grows
complexity over time.
> + }
> + if (!options.root) {
> + if (argc != 2)
> + die("TODO: handle @{upstream}");
> + else {
> + options.upstream_name = argv[1];
> + argc--;
> + argv++;
> + if (!strcmp(options.upstream_name, "-"))
> + options.upstream_name = "@{-1}";
> + }
> + options.upstream = peel_committish(options.upstream_name);
> + if (!options.upstream)
> + die(_("invalid upstream '%s'"), options.upstream_name);
> + } else
> + die("TODO: upstream for --root");
> +
> + /* Make sure the branch to rebase onto is valid. */
> + if (!options.onto_name)
> + options.onto_name = options.upstream_name;
> + if (strstr(options.onto_name, "...")) {
> + die("TODO");
> + } else {
> + options.onto = peel_committish(options.onto_name);
> + if (!options.onto)
> + die(_("Does not point to a valid commit '%s'"),
> + options.onto_name);
> + }
> +
> + /*
> + * If the branch to rebase is given, that is the branch we will rebase
Style: align asterisks.
> + * branch_name -- branch/commit being rebased, or HEAD (already detached)
> + * orig_head -- commit object name of tip of the branch before rebasing
> + * head_name -- refs/heads/<that-branch> or "detached HEAD"
> + */
> + if (argc > 1)
> + die ("TODO: handle switch_to");
Style: no SP between "die" and "("
