From 7f13334e074bb053eccd14787e416306bc4b413a Mon Sep 17 00:00:00 2001 From: Jonathan Nieder Date: Sat, 13 Aug 2011 12:06:23 -0500 Subject: [PATCH] revert: pass around rev-list args in already-parsed form Since 7e2bfd3f (revert: allow cherry-picking more than one commit, 2010-07-02), the pick/revert machinery has kept track of the set of commits to be cherry-picked or reverted using commit_argc and commit_argv variables, storing the corresponding command-line parameters. Future callers as other commands are built in (am, rebase, sequencer) may find it easier to pass rev-list options to this machinery in already-parsed form. Teach cmd_cherry_pick and cmd_revert to parse the rev-list arguments in advance and pass the commit set to pick_revisions() as a rev_info structure. Original patch by Jonathan, tweaks and test from Ram. Signed-off-by: Jonathan Nieder Improved-by: Ramkumar Ramachandra Signed-off-by: Junio C Hamano --- builtin/revert.c | 53 ++++++++++++++++++--------------- t/t3510-cherry-pick-sequence.sh | 5 ++++ 2 files changed, 34 insertions(+), 24 deletions(-) diff --git a/builtin/revert.c b/builtin/revert.c index a43b4d85f..f7f4bb357 100644 --- a/builtin/revert.c +++ b/builtin/revert.c @@ -60,13 +60,14 @@ struct replay_opts { int allow_rerere_auto; int mainline; - int commit_argc; - const char **commit_argv; /* Merge strategy */ const char *strategy; const char **xopts; size_t xopts_nr, xopts_alloc; + + /* Only used by REPLAY_NONE */ + struct rev_info *revs; }; #define GIT_REFLOG_ACTION "GIT_REFLOG_ACTION" @@ -169,9 +170,9 @@ static void parse_args(int argc, const char **argv, struct replay_opts *opts) die(_("program error")); } - opts->commit_argc = parse_options(argc, argv, NULL, options, usage_str, - PARSE_OPT_KEEP_ARGV0 | - PARSE_OPT_KEEP_UNKNOWN); + argc = parse_options(argc, argv, NULL, options, usage_str, + PARSE_OPT_KEEP_ARGV0 | + PARSE_OPT_KEEP_UNKNOWN); /* Check for incompatible subcommands */ verify_opt_mutually_compatible(me, @@ -213,9 +214,6 @@ static void parse_args(int argc, const char **argv, struct replay_opts *opts) NULL); } - else if (opts->commit_argc < 2) - usage_with_options(usage_str, options); - if (opts->allow_ff) verify_opt_compatible(me, "--ff", "--signoff", opts->signoff, @@ -223,7 +221,20 @@ static void parse_args(int argc, const char **argv, struct replay_opts *opts) "-x", opts->record_origin, "--edit", opts->edit, NULL); - opts->commit_argv = argv; + + if (opts->subcommand != REPLAY_NONE) { + opts->revs = NULL; + } else { + opts->revs = xmalloc(sizeof(*opts->revs)); + init_revisions(opts->revs, NULL); + opts->revs->no_walk = 1; + if (argc < 2) + usage_with_options(usage_str, options); + argc = setup_revisions(argc, argv, opts->revs, NULL); + } + + if (argc > 1) + usage_with_options(usage_str, options); } struct commit_message { @@ -631,23 +642,15 @@ static int do_pick_commit(struct commit *commit, struct replay_opts *opts) return res; } -static void prepare_revs(struct rev_info *revs, struct replay_opts *opts) +static void prepare_revs(struct replay_opts *opts) { - int argc; - - init_revisions(revs, NULL); - revs->no_walk = 1; if (opts->action != REVERT) - revs->reverse = 1; + opts->revs->reverse ^= 1; - argc = setup_revisions(opts->commit_argc, opts->commit_argv, revs, NULL); - if (argc > 1) - usage(*revert_or_cherry_pick_usage(opts)); - - if (prepare_revision_walk(revs)) + if (prepare_revision_walk(opts->revs)) die(_("revision walk setup failed")); - if (!revs->commits) + if (!opts->revs->commits) die(_("empty commit set passed")); } @@ -844,14 +847,13 @@ static void read_populate_opts(struct replay_opts **opts_ptr) static void walk_revs_populate_todo(struct commit_list **todo_list, struct replay_opts *opts) { - struct rev_info revs; struct commit *commit; struct commit_list **next; - prepare_revs(&revs, opts); + prepare_revs(opts); next = todo_list; - while ((commit = get_revision(&revs))) + while ((commit = get_revision(opts->revs))) next = commit_list_append(commit, next); } @@ -1075,6 +1077,9 @@ static int pick_revisions(struct replay_opts *opts) struct commit_list *todo_list = NULL; unsigned char sha1[20]; + if (opts->subcommand == REPLAY_NONE) + assert(opts->revs); + read_and_refresh_cache(opts); /* diff --git a/t/t3510-cherry-pick-sequence.sh b/t/t3510-cherry-pick-sequence.sh index 4d1883b73..56c95ec18 100755 --- a/t/t3510-cherry-pick-sequence.sh +++ b/t/t3510-cherry-pick-sequence.sh @@ -461,4 +461,9 @@ test_expect_success 'malformed instruction sheet 2' ' test_must_fail git cherry-pick --continue ' +test_expect_success 'empty commit set' ' + pristine_detach initial && + test_expect_code 128 git cherry-pick base..base +' + test_done -- 2.30.2