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#include "cache.h"
#include "builtin.h"
#include "parse-options.h"
#include "diff.h"
#include "revision.h"
#include "rerere.h"
#include "dir.h"
#include "sequencer.h"
/*
* This implements the builtins revert and cherry-pick.
*
* Copyright (c) 2007 Johannes E. Schindelin
*
* Based on git-revert.sh, which is
*
* Copyright (c) 2005 Linus Torvalds
* Copyright (c) 2005 Junio C Hamano
*/
static const char * const revert_usage[] = {
"git revert [options] <commit-ish>",
"git revert <subcommand>",
NULL
};
static const char * const cherry_pick_usage[] = {
"git cherry-pick [options] <commit-ish>",
"git cherry-pick <subcommand>",
NULL
};
static const char *action_name(const struct replay_opts *opts)
{
return opts->action == REPLAY_REVERT ? "revert" : "cherry-pick";
}
static const char * const *revert_or_cherry_pick_usage(struct replay_opts *opts)
{
return opts->action == REPLAY_REVERT ? revert_usage : cherry_pick_usage;
}
static int option_parse_x(const struct option *opt,
const char *arg, int unset)
{
struct replay_opts **opts_ptr = opt->value;
struct replay_opts *opts = *opts_ptr;
if (unset)
return 0;
ALLOC_GROW(opts->xopts, opts->xopts_nr + 1, opts->xopts_alloc);
opts->xopts[opts->xopts_nr++] = xstrdup(arg);
return 0;
}
static void verify_opt_compatible(const char *me, const char *base_opt, ...)
{
const char *this_opt;
va_list ap;
va_start(ap, base_opt);
while ((this_opt = va_arg(ap, const char *))) {
if (va_arg(ap, int))
break;
}
va_end(ap);
if (this_opt)
die(_("%s: %s cannot be used with %s"), me, this_opt, base_opt);
}
static void verify_opt_mutually_compatible(const char *me, ...)
{
const char *opt1, *opt2 = NULL;
va_list ap;
va_start(ap, me);
while ((opt1 = va_arg(ap, const char *))) {
if (va_arg(ap, int))
break;
}
if (opt1) {
while ((opt2 = va_arg(ap, const char *))) {
if (va_arg(ap, int))
break;
}
}
va_end(ap);
if (opt1 && opt2)
die(_("%s: %s cannot be used with %s"), me, opt1, opt2);
}
static void parse_args(int argc, const char **argv, struct replay_opts *opts)
{
const char * const * usage_str = revert_or_cherry_pick_usage(opts);
const char *me = action_name(opts);
int remove_state = 0;
int contin = 0;
int rollback = 0;
struct option options[] = {
OPT_BOOLEAN(0, "quit", &remove_state, "end revert or cherry-pick sequence"),
OPT_BOOLEAN(0, "continue", &contin, "resume revert or cherry-pick sequence"),
OPT_BOOLEAN(0, "abort", &rollback, "cancel revert or cherry-pick sequence"),
OPT_BOOLEAN('n', "no-commit", &opts->no_commit, "don't automatically commit"),
OPT_BOOLEAN('e', "edit", &opts->edit, "edit the commit message"),
OPT_NOOP_NOARG('r', NULL),
OPT_BOOLEAN('s', "signoff", &opts->signoff, "add Signed-off-by:"),
OPT_INTEGER('m', "mainline", &opts->mainline, "parent number"),
OPT_RERERE_AUTOUPDATE(&opts->allow_rerere_auto),
OPT_STRING(0, "strategy", &opts->strategy, "strategy", "merge strategy"),
OPT_CALLBACK('X', "strategy-option", &opts, "option",
"option for merge strategy", option_parse_x),
OPT_END(),
OPT_END(),
OPT_END(),
OPT_END(),
OPT_END(),
OPT_END(),
};
if (opts->action == REPLAY_PICK) {
struct option cp_extra[] = {
OPT_BOOLEAN('x', NULL, &opts->record_origin, "append commit name"),
OPT_BOOLEAN(0, "ff", &opts->allow_ff, "allow fast-forward"),
OPT_BOOLEAN(0, "allow-empty", &opts->allow_empty, "preserve initially empty commits"),
OPT_BOOLEAN(0, "allow-empty-message", &opts->allow_empty_message, "allow commits with empty messages"),
OPT_BOOLEAN(0, "keep-redundant-commits", &opts->keep_redundant_commits, "keep redundant, empty commits"),
OPT_END(),
};
if (parse_options_concat(options, ARRAY_SIZE(options), cp_extra))
die(_("program error"));
}
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,
"--quit", remove_state,
"--continue", contin,
"--abort", rollback,
NULL);
/* implies allow_empty */
if (opts->keep_redundant_commits)
opts->allow_empty = 1;
/* Set the subcommand */
if (remove_state)
opts->subcommand = REPLAY_REMOVE_STATE;
else if (contin)
opts->subcommand = REPLAY_CONTINUE;
else if (rollback)
opts->subcommand = REPLAY_ROLLBACK;
else
opts->subcommand = REPLAY_NONE;
/* Check for incompatible command line arguments */
if (opts->subcommand != REPLAY_NONE) {
char *this_operation;
if (opts->subcommand == REPLAY_REMOVE_STATE)
this_operation = "--quit";
else if (opts->subcommand == REPLAY_CONTINUE)
this_operation = "--continue";
else {
assert(opts->subcommand == REPLAY_ROLLBACK);
this_operation = "--abort";
}
verify_opt_compatible(me, this_operation,
"--no-commit", opts->no_commit,
"--signoff", opts->signoff,
"--mainline", opts->mainline,
"--strategy", opts->strategy ? 1 : 0,
"--strategy-option", opts->xopts ? 1 : 0,
"-x", opts->record_origin,
"--ff", opts->allow_ff,
NULL);
}
if (opts->allow_ff)
verify_opt_compatible(me, "--ff",
"--signoff", opts->signoff,
"--no-commit", opts->no_commit,
"-x", opts->record_origin,
"--edit", opts->edit,
NULL);
if (opts->subcommand != REPLAY_NONE) {
opts->revs = NULL;
} else {
struct setup_revision_opt s_r_opt;
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);
memset(&s_r_opt, 0, sizeof(s_r_opt));
s_r_opt.assume_dashdash = 1;
argc = setup_revisions(argc, argv, opts->revs, &s_r_opt);
}
if (argc > 1)
usage_with_options(usage_str, options);
}
int cmd_revert(int argc, const char **argv, const char *prefix)
{
struct replay_opts opts;
int res;
memset(&opts, 0, sizeof(opts));
if (isatty(0))
opts.edit = 1;
opts.action = REPLAY_REVERT;
git_config(git_default_config, NULL);
parse_args(argc, argv, &opts);
res = sequencer_pick_revisions(&opts);
if (res < 0)
die(_("revert failed"));
return res;
}
int cmd_cherry_pick(int argc, const char **argv, const char *prefix)
{
struct replay_opts opts;
int res;
memset(&opts, 0, sizeof(opts));
opts.action = REPLAY_PICK;
git_config(git_default_config, NULL);
parse_args(argc, argv, &opts);
res = sequencer_pick_revisions(&opts);
if (res < 0)
die(_("cherry-pick failed"));
return res;
}
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