int cmd_reset(int argc, const char **argv, const char *prefix)
{
int reset_type = NONE, update_ref_status = 0, quiet = 0;
int patch_mode = 0, unborn;
const char *rev;
unsigned char sha1[20];
struct pathspec pathspec;
int intent_to_add = 0;
const struct option options[] = {
OPT__QUIET(&quiet, N_("be quiet, only report errors")),
OPT_SET_INT(0, "mixed", &reset_type,
N_("reset HEAD and index"), MIXED),
OPT_SET_INT(0, "soft", &reset_type, N_("reset only HEAD"), SOFT),
OPT_SET_INT(0, "hard", &reset_type,
N_("reset HEAD, index and working tree"), HARD),
OPT_SET_INT(0, "merge", &reset_type,
N_("reset HEAD, index and working tree"), MERGE),
OPT_SET_INT(0, "keep", &reset_type,
N_("reset HEAD but keep local changes"), KEEP),
OPT_BOOL('p', "patch", &patch_mode, N_("select hunks interactively")),
OPT_BOOL('N', "intent-to-add", &intent_to_add,
N_("record only the fact that removed paths will be added later")),
OPT_END()
};
git_config(git_default_config, NULL);
argc = parse_options(argc, argv, prefix, options, git_reset_usage,
PARSE_OPT_KEEP_DASHDASH);
parse_args(&pathspec, argv, prefix, patch_mode, &rev);
unborn = !strcmp(rev, "HEAD") && get_sha1("HEAD", sha1);
if (unborn) {
/* reset on unborn branch: treat as reset to empty tree */
hashcpy(sha1, EMPTY_TREE_SHA1_BIN);
} else if (!pathspec.nr) {
struct commit *commit;
if (get_sha1_committish(rev, sha1))
die(_("Failed to resolve '%s' as a valid revision."), rev);
commit = lookup_commit_reference(sha1);
if (!commit)
die(_("Could not parse object '%s'."), rev);
hashcpy(sha1, commit->object.sha1);
} else {
struct tree *tree;
if (get_sha1_treeish(rev, sha1))
die(_("Failed to resolve '%s' as a valid tree."), rev);
tree = parse_tree_indirect(sha1);
if (!tree)
die(_("Could not parse object '%s'."), rev);
hashcpy(sha1, tree->object.sha1);
}
if (patch_mode) {
if (reset_type != NONE)
die(_("--patch is incompatible with --{hard,mixed,soft}"));
return run_add_interactive(rev, "--patch=reset", &pathspec);
}
/* git reset tree [--] paths... can be used to
* load chosen paths from the tree into the index without
* affecting the working tree nor HEAD. */
if (pathspec.nr) {
if (reset_type == MIXED)
warning(_("--mixed with paths is deprecated; use 'git reset -- <paths>' instead."));
else if (reset_type != NONE)
die(_("Cannot do %s reset with paths."),
_(reset_type_names[reset_type]));
}
if (reset_type == NONE)
reset_type = MIXED; /* by default */
if (reset_type != SOFT && (reset_type != MIXED || get_git_work_tree()))
setup_work_tree();
if (reset_type == MIXED && is_bare_repository())
die(_("%s reset is not allowed in a bare repository"),
_(reset_type_names[reset_type]));
if (intent_to_add && reset_type != MIXED)
die(_("-N can only be used with --mixed"));
/* Soft reset does not touch the index file nor the working tree
* at all, but requires them in a good order. Other resets reset
* the index file to the tree object we are switching to. */
if (reset_type == SOFT || reset_type == KEEP)
die_if_unmerged_cache(reset_type);
if (reset_type != SOFT) {
struct lock_file *lock = xcalloc(1, sizeof(*lock));
hold_locked_index(lock, 1);
if (reset_type == MIXED) {
int flags = quiet ? REFRESH_QUIET : REFRESH_IN_PORCELAIN;
if (read_from_tree(&pathspec, sha1, intent_to_add))
return 1;
if (get_git_work_tree())
refresh_index(&the_index, flags, NULL, NULL,
_("Unstaged changes after reset:"));
} else {
int err = reset_index(sha1, reset_type, quiet);
if (reset_type == KEEP && !err)
err = reset_index(sha1, MIXED, quiet);
if (err)
die(_("Could not reset index file to revision '%s'."), rev);
}
if (write_locked_index(&the_index, lock, COMMIT_LOCK))
die(_("Could not write new index file."));
}
if (!pathspec.nr && !unborn) {
/* Any resets without paths update HEAD to the head being
* switched to, saving the previous head in ORIG_HEAD before. */
update_ref_status = reset_refs(rev, sha1);
if (reset_type == HARD && !update_ref_status && !quiet)
print_new_head_line(lookup_commit_reference(sha1));
}
if (!pathspec.nr)
remove_branch_state();
return update_ref_status;
}
int cmd_reset(int argc, const char **argv, const char *prefix)
{
int reset_type = NONE, update_ref_status = 0, quiet = 0;
int patch_mode = 0, nul_term_line = 0, read_from_stdin = 0, unborn;
char **stdin_paths = NULL;
int stdin_nr = 0, stdin_alloc = 0;
const char *rev;
struct object_id oid;
struct pathspec pathspec;
int intent_to_add = 0;
const struct option options[] = {
OPT__QUIET(&quiet, N_("be quiet, only report errors")),
OPT_SET_INT(0, "mixed", &reset_type,
N_("reset HEAD and index"), MIXED),
OPT_SET_INT(0, "soft", &reset_type, N_("reset only HEAD"), SOFT),
OPT_SET_INT(0, "hard", &reset_type,
N_("reset HEAD, index and working tree"), HARD),
OPT_SET_INT(0, "merge", &reset_type,
N_("reset HEAD, index and working tree"), MERGE),
OPT_SET_INT(0, "keep", &reset_type,
N_("reset HEAD but keep local changes"), KEEP),
{ OPTION_CALLBACK, 0, "recurse-submodules", NULL,
"reset", "control recursive updating of submodules",
PARSE_OPT_OPTARG, option_parse_recurse_submodules_worktree_updater },
OPT_BOOL('p', "patch", &patch_mode, N_("select hunks interactively")),
OPT_BOOL('N', "intent-to-add", &intent_to_add,
N_("record only the fact that removed paths will be added later")),
OPT_BOOL('z', NULL, &nul_term_line,
N_("EXPERIMENTAL: paths are separated with NUL character")),
OPT_BOOL(0, "stdin", &read_from_stdin,
N_("EXPERIMENTAL: read paths from <stdin>")),
OPT_END()
};
git_config(git_reset_config, NULL);
argc = parse_options(argc, argv, prefix, options, git_reset_usage,
PARSE_OPT_KEEP_DASHDASH);
parse_args(&pathspec, argv, prefix, patch_mode, &rev);
if (read_from_stdin) {
strbuf_getline_fn getline_fn = nul_term_line ?
strbuf_getline_nul : strbuf_getline_lf;
int flags = PATHSPEC_PREFER_FULL;
struct strbuf buf = STRBUF_INIT;
struct strbuf unquoted = STRBUF_INIT;
if (patch_mode)
die(_("--stdin is incompatible with --patch"));
if (pathspec.nr)
die(_("--stdin is incompatible with path arguments"));
while (getline_fn(&buf, stdin) != EOF) {
if (!nul_term_line && buf.buf[0] == '"') {
strbuf_reset(&unquoted);
if (unquote_c_style(&unquoted, buf.buf, NULL))
die(_("line is badly quoted"));
strbuf_swap(&buf, &unquoted);
}
ALLOC_GROW(stdin_paths, stdin_nr + 1, stdin_alloc);
stdin_paths[stdin_nr++] = xstrdup(buf.buf);
strbuf_reset(&buf);
}
strbuf_release(&unquoted);
strbuf_release(&buf);
ALLOC_GROW(stdin_paths, stdin_nr + 1, stdin_alloc);
stdin_paths[stdin_nr++] = NULL;
flags |= PATHSPEC_LITERAL_PATH;
parse_pathspec(&pathspec, 0, flags, prefix,
(const char **)stdin_paths);
} else if (nul_term_line)
die(_("-z requires --stdin"));
unborn = !strcmp(rev, "HEAD") && get_oid("HEAD", &oid);
if (unborn) {
/* reset on unborn branch: treat as reset to empty tree */
hashcpy(oid.hash, EMPTY_TREE_SHA1_BIN);
} else if (!pathspec.nr) {
struct commit *commit;
if (get_oid_committish(rev, &oid))
die(_("Failed to resolve '%s' as a valid revision."), rev);
commit = lookup_commit_reference(&oid);
if (!commit)
die(_("Could not parse object '%s'."), rev);
oidcpy(&oid, &commit->object.oid);
} else {
struct tree *tree;
if (get_oid_treeish(rev, &oid))
die(_("Failed to resolve '%s' as a valid tree."), rev);
tree = parse_tree_indirect(&oid);
if (!tree)
die(_("Could not parse object '%s'."), rev);
oidcpy(&oid, &tree->object.oid);
}
if (patch_mode) {
if (reset_type != NONE)
die(_("--patch is incompatible with --{hard,mixed,soft}"));
return run_add_interactive(rev, "--patch=reset", &pathspec);
}
/* git reset tree [--] paths... can be used to
* load chosen paths from the tree into the index without
* affecting the working tree nor HEAD. */
if (pathspec.nr) {
if (reset_type == MIXED)
warning(_("--mixed with paths is deprecated; use 'git reset -- <paths>' instead."));
else if (reset_type != NONE)
die(_("Cannot do %s reset with paths."),
_(reset_type_names[reset_type]));
}
if (reset_type == NONE)
reset_type = MIXED; /* by default */
if (reset_type != SOFT && (reset_type != MIXED || get_git_work_tree()))
setup_work_tree();
if (reset_type == MIXED && is_bare_repository())
die(_("%s reset is not allowed in a bare repository"),
_(reset_type_names[reset_type]));
if (intent_to_add && reset_type != MIXED)
die(_("-N can only be used with --mixed"));
/* Soft reset does not touch the index file nor the working tree
* at all, but requires them in a good order. Other resets reset
* the index file to the tree object we are switching to. */
if (reset_type == SOFT || reset_type == KEEP)
die_if_unmerged_cache(reset_type);
if (reset_type != SOFT) {
struct lock_file lock = LOCK_INIT;
hold_locked_index(&lock, LOCK_DIE_ON_ERROR);
if (reset_type == MIXED) {
int flags = quiet ? REFRESH_QUIET : REFRESH_IN_PORCELAIN;
if (read_from_tree(&pathspec, &oid, intent_to_add))
return 1;
if (get_git_work_tree())
refresh_index(&the_index, flags, NULL, NULL,
_("Unstaged changes after reset:"));
} else {
int err = reset_index(&oid, reset_type, quiet);
if (reset_type == KEEP && !err)
err = reset_index(&oid, MIXED, quiet);
if (err)
die(_("Could not reset index file to revision '%s'."), rev);
}
if (write_locked_index(&the_index, &lock, COMMIT_LOCK))
die(_("Could not write new index file."));
}
if (!pathspec.nr && !unborn) {
/* Any resets without paths update HEAD to the head being
* switched to, saving the previous head in ORIG_HEAD before. */
update_ref_status = reset_refs(rev, &oid);
if (reset_type == HARD && !update_ref_status && !quiet)
print_new_head_line(lookup_commit_reference(&oid));
}
if (!pathspec.nr)
remove_branch_state();
if (stdin_paths) {
while (stdin_nr)
free(stdin_paths[--stdin_nr]);
free(stdin_paths);
}
return update_ref_status;
}