builtin rebase: prepare for builtin rebase -i

The builtin rebase and the builtin interactive rebase have been
developed independently, on purpose: Google Summer of Code rules
specifically state that students have to work on independent projects,
they cannot collaborate on the same project.

One fallout is that the rebase-in-c and rebase-i-in-c patches cause no
merge conflicts but a royal number of tests in the test suite to fail.

It is easy to explain why: rebase-in-c was developed under the
assumption that all rebase backends are implemented in Unix shell script
and can be sourced via `. git-rebase--<backend>`, which is no longer
true with rebase-i-in-c, where git-rebase--interactive is a hard-linked
builtin.

This patch fixes that.

Please note that we also skip the finish_rebase() call for interactive
rebases because the built-in interactive rebase already takes care of
that. This is needed to support the upcoming `break` command that wants
to interrupt the rebase with exit code 0 (and naturally wants to keep
the state directory intact when doing so).

While at it, remove the `case` arm for the interactive rebase that is
now skipped in favor of the short-cut to the built-in rebase.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin 2018-10-05 08:54:38 -07:00 committed by Junio C Hamano
parent 5ab7e0fb67
commit bc24382c2b

View file

@ -326,6 +326,13 @@ static void add_var(struct strbuf *buf, const char *name, const char *value)
}
}
static const char *resolvemsg =
N_("Resolve all conflicts manually, mark them as resolved with\n"
"\"git add/rm <conflicted_files>\", then run \"git rebase --continue\".\n"
"You can instead skip this commit: run \"git rebase --skip\".\n"
"To abort and get back to the state before \"git rebase\", run "
"\"git rebase --abort\".");
static int run_specific_rebase(struct rebase_options *opts)
{
const char *argv[] = { NULL, NULL };
@ -333,6 +340,79 @@ static int run_specific_rebase(struct rebase_options *opts)
int status;
const char *backend, *backend_func;
if (opts->type == REBASE_INTERACTIVE) {
/* Run builtin interactive rebase */
struct child_process child = CHILD_PROCESS_INIT;
argv_array_pushf(&child.env_array, "GIT_CHERRY_PICK_HELP=%s",
resolvemsg);
if (!(opts->flags & REBASE_INTERACTIVE_EXPLICIT)) {
argv_array_push(&child.env_array, "GIT_EDITOR=:");
opts->autosquash = 0;
}
child.git_cmd = 1;
argv_array_push(&child.args, "rebase--interactive");
if (opts->action)
argv_array_pushf(&child.args, "--%s", opts->action);
if (opts->keep_empty)
argv_array_push(&child.args, "--keep-empty");
if (opts->rebase_merges)
argv_array_push(&child.args, "--rebase-merges");
if (opts->rebase_cousins)
argv_array_push(&child.args, "--rebase-cousins");
if (opts->autosquash)
argv_array_push(&child.args, "--autosquash");
if (opts->flags & REBASE_VERBOSE)
argv_array_push(&child.args, "--verbose");
if (opts->flags & REBASE_FORCE)
argv_array_push(&child.args, "--no-ff");
if (opts->restrict_revision)
argv_array_pushf(&child.args,
"--restrict-revision=^%s",
oid_to_hex(&opts->restrict_revision->object.oid));
if (opts->upstream)
argv_array_pushf(&child.args, "--upstream=%s",
oid_to_hex(&opts->upstream->object.oid));
if (opts->onto)
argv_array_pushf(&child.args, "--onto=%s",
oid_to_hex(&opts->onto->object.oid));
if (opts->squash_onto)
argv_array_pushf(&child.args, "--squash-onto=%s",
oid_to_hex(opts->squash_onto));
if (opts->onto_name)
argv_array_pushf(&child.args, "--onto-name=%s",
opts->onto_name);
argv_array_pushf(&child.args, "--head-name=%s",
opts->head_name ?
opts->head_name : "detached HEAD");
if (opts->strategy)
argv_array_pushf(&child.args, "--strategy=%s",
opts->strategy);
if (opts->strategy_opts)
argv_array_pushf(&child.args, "--strategy-opts=%s",
opts->strategy_opts);
if (opts->switch_to)
argv_array_pushf(&child.args, "--switch-to=%s",
opts->switch_to);
if (opts->cmd)
argv_array_pushf(&child.args, "--cmd=%s", opts->cmd);
if (opts->allow_empty_message)
argv_array_push(&child.args, "--allow-empty-message");
if (opts->allow_rerere_autoupdate > 0)
argv_array_push(&child.args, "--rerere-autoupdate");
else if (opts->allow_rerere_autoupdate == 0)
argv_array_push(&child.args, "--no-rerere-autoupdate");
if (opts->gpg_sign_opt)
argv_array_push(&child.args, opts->gpg_sign_opt);
if (opts->signoff)
argv_array_push(&child.args, "--signoff");
status = run_command(&child);
goto finished_rebase;
}
add_var(&script_snippet, "GIT_DIR", absolute_path(get_git_dir()));
add_var(&script_snippet, "state_dir", opts->state_dir);
@ -395,10 +475,6 @@ static int run_specific_rebase(struct rebase_options *opts)
backend = "git-rebase--am";
backend_func = "git_rebase__am";
break;
case REBASE_INTERACTIVE:
backend = "git-rebase--interactive";
backend_func = "git_rebase__interactive";
break;
case REBASE_MERGE:
backend = "git-rebase--merge";
backend_func = "git_rebase__merge";
@ -418,8 +494,11 @@ static int run_specific_rebase(struct rebase_options *opts)
argv[0] = script_snippet.buf;
status = run_command_v_opt(argv, RUN_USING_SHELL);
finished_rebase:
if (opts->dont_finish_rebase)
; /* do nothing */
else if (opts->type == REBASE_INTERACTIVE)
; /* interactive rebase cleans up after itself */
else if (status == 0) {
if (!file_exists(state_dir_path("stopped-sha", opts)))
finish_rebase(opts);