#include "ll-merge.h"
#include "resolve-undo.h"
#include "submodule.h"
-#include "argv-array.h"
-#include "sigchain.h"
static const char * const checkout_usage[] = {
N_("git checkout [<options>] <branch>"),
const char *prefix;
struct pathspec pathspec;
struct tree *source_tree;
-
- const char *new_worktree;
- const char **saved_argv;
- int new_worktree_mode;
};
static int post_checkout_hook(struct commit *old, struct commit *new,
die(_("Cannot update paths and switch to branch '%s' at the same time."),
opts->new_branch);
- if (opts->new_worktree)
- die(_("'%s' cannot be used with updating paths"), "--to");
-
if (opts->patch_mode)
return run_add_interactive(revision, "--patch=checkout",
&opts->pathspec);
topts.dir->flags |= DIR_SHOW_IGNORED;
setup_standard_excludes(topts.dir);
}
- tree = parse_tree_indirect(old->commit && !opts->new_worktree_mode ?
+ tree = parse_tree_indirect(old->commit ?
old->commit->object.sha1 :
EMPTY_TREE_SHA1_BIN);
init_tree_desc(&trees[0], tree->buffer, tree->size);
if (opts->new_branch) {
if (opts->new_orphan_branch) {
if (opts->new_branch_log && !log_all_ref_updates) {
- int temp;
- struct strbuf log_file = STRBUF_INIT;
int ret;
- const char *ref_name;
+ char *refname;
struct strbuf err = STRBUF_INIT;
- ref_name = mkpath("refs/heads/%s", opts->new_orphan_branch);
- temp = log_all_ref_updates;
- log_all_ref_updates = 1;
- ret = log_ref_setup(ref_name, &log_file, &err);
- log_all_ref_updates = temp;
- strbuf_release(&log_file);
+ refname = mkpathdup("refs/heads/%s", opts->new_orphan_branch);
+ ret = safe_create_reflog(refname, 1, &err);
+ free(refname);
if (ret) {
fprintf(stderr, _("Can not do reflog for '%s': %s\n"),
opts->new_orphan_branch, err.buf);
strbuf_release(&err);
return;
}
+ strbuf_release(&err);
}
}
else
return ret;
}
- if (!opts->quiet && !old.path && old.commit &&
- new->commit != old.commit && !opts->new_worktree_mode)
+ if (!opts->quiet && !old.path && old.commit && new->commit != old.commit)
orphaned_commit_warning(old.commit, new->commit);
update_refs_for_switch(opts, &old, new);
return ret || writeout_error;
}
-static char *junk_work_tree;
-static char *junk_git_dir;
-static int is_junk;
-static pid_t junk_pid;
-
-static void remove_junk(void)
-{
- struct strbuf sb = STRBUF_INIT;
- if (!is_junk || getpid() != junk_pid)
- return;
- if (junk_git_dir) {
- strbuf_addstr(&sb, junk_git_dir);
- remove_dir_recursively(&sb, 0);
- strbuf_reset(&sb);
- }
- if (junk_work_tree) {
- strbuf_addstr(&sb, junk_work_tree);
- remove_dir_recursively(&sb, 0);
- }
- strbuf_release(&sb);
-}
-
-static void remove_junk_on_signal(int signo)
-{
- remove_junk();
- sigchain_pop(signo);
- raise(signo);
-}
-
-static int prepare_linked_checkout(const struct checkout_opts *opts,
- struct branch_info *new)
-{
- struct strbuf sb_git = STRBUF_INIT, sb_repo = STRBUF_INIT;
- struct strbuf sb = STRBUF_INIT;
- const char *path = opts->new_worktree, *name;
- struct stat st;
- struct child_process cp;
- int counter = 0, len, ret;
-
- if (!new->commit)
- die(_("no branch specified"));
- if (file_exists(path) && !is_empty_dir(path))
- die(_("'%s' already exists"), path);
-
- len = strlen(path);
- while (len && is_dir_sep(path[len - 1]))
- len--;
-
- for (name = path + len - 1; name > path; name--)
- if (is_dir_sep(*name)) {
- name++;
- break;
- }
- strbuf_addstr(&sb_repo,
- git_path("worktrees/%.*s", (int)(path + len - name), name));
- len = sb_repo.len;
- if (safe_create_leading_directories_const(sb_repo.buf))
- die_errno(_("could not create leading directories of '%s'"),
- sb_repo.buf);
- while (!stat(sb_repo.buf, &st)) {
- counter++;
- strbuf_setlen(&sb_repo, len);
- strbuf_addf(&sb_repo, "%d", counter);
- }
- name = strrchr(sb_repo.buf, '/') + 1;
-
- junk_pid = getpid();
- atexit(remove_junk);
- sigchain_push_common(remove_junk_on_signal);
-
- if (mkdir(sb_repo.buf, 0777))
- die_errno(_("could not create directory of '%s'"), sb_repo.buf);
- junk_git_dir = xstrdup(sb_repo.buf);
- is_junk = 1;
-
- /*
- * lock the incomplete repo so prune won't delete it, unlock
- * after the preparation is over.
- */
- strbuf_addf(&sb, "%s/locked", sb_repo.buf);
- write_file(sb.buf, 1, "initializing\n");
-
- strbuf_addf(&sb_git, "%s/.git", path);
- if (safe_create_leading_directories_const(sb_git.buf))
- die_errno(_("could not create leading directories of '%s'"),
- sb_git.buf);
- junk_work_tree = xstrdup(path);
-
- strbuf_reset(&sb);
- strbuf_addf(&sb, "%s/gitdir", sb_repo.buf);
- write_file(sb.buf, 1, "%s\n", real_path(sb_git.buf));
- write_file(sb_git.buf, 1, "gitdir: %s/worktrees/%s\n",
- real_path(get_git_common_dir()), name);
- /*
- * This is to keep resolve_ref() happy. We need a valid HEAD
- * or is_git_directory() will reject the directory. Any valid
- * value would do because this value will be ignored and
- * replaced at the next (real) checkout.
- */
- strbuf_reset(&sb);
- strbuf_addf(&sb, "%s/HEAD", sb_repo.buf);
- write_file(sb.buf, 1, "%s\n", sha1_to_hex(new->commit->object.sha1));
- strbuf_reset(&sb);
- strbuf_addf(&sb, "%s/commondir", sb_repo.buf);
- write_file(sb.buf, 1, "../..\n");
-
- if (!opts->quiet)
- fprintf_ln(stderr, _("Enter %s (identifier %s)"), path, name);
-
- setenv("GIT_CHECKOUT_NEW_WORKTREE", "1", 1);
- setenv(GIT_DIR_ENVIRONMENT, sb_git.buf, 1);
- setenv(GIT_WORK_TREE_ENVIRONMENT, path, 1);
- memset(&cp, 0, sizeof(cp));
- cp.git_cmd = 1;
- cp.argv = opts->saved_argv;
- ret = run_command(&cp);
- if (!ret) {
- is_junk = 0;
- free(junk_work_tree);
- free(junk_git_dir);
- junk_work_tree = NULL;
- junk_git_dir = NULL;
- }
- strbuf_reset(&sb);
- strbuf_addf(&sb, "%s/locked", sb_repo.buf);
- unlink_or_warn(sb.buf);
- strbuf_release(&sb);
- strbuf_release(&sb_repo);
- strbuf_release(&sb_git);
- return ret;
-}
-
static int git_checkout_config(const char *var, const char *value, void *cb)
{
if (!strcmp(var, "diff.ignoresubmodules")) {
return NULL;
}
-static void check_linked_checkout(struct branch_info *new, const char *id)
-{
- struct strbuf sb = STRBUF_INIT;
- struct strbuf path = STRBUF_INIT;
- struct strbuf gitdir = STRBUF_INIT;
- const char *start, *end;
-
- if (id)
- strbuf_addf(&path, "%s/worktrees/%s/HEAD", get_git_common_dir(), id);
- else
- strbuf_addf(&path, "%s/HEAD", get_git_common_dir());
-
- if (strbuf_read_file(&sb, path.buf, 0) < 0 ||
- !skip_prefix(sb.buf, "ref:", &start))
- goto done;
- while (isspace(*start))
- start++;
- end = start;
- while (*end && !isspace(*end))
- end++;
- if (strncmp(start, new->path, end - start) || new->path[end - start] != '\0')
- goto done;
- if (id) {
- strbuf_reset(&path);
- strbuf_addf(&path, "%s/worktrees/%s/gitdir", get_git_common_dir(), id);
- if (strbuf_read_file(&gitdir, path.buf, 0) <= 0)
- goto done;
- strbuf_rtrim(&gitdir);
- } else
- strbuf_addstr(&gitdir, get_git_common_dir());
- die(_("'%s' is already checked out at '%s'"), new->name, gitdir.buf);
-done:
- strbuf_release(&path);
- strbuf_release(&sb);
- strbuf_release(&gitdir);
-}
-
-static void check_linked_checkouts(struct branch_info *new)
-{
- struct strbuf path = STRBUF_INIT;
- DIR *dir;
- struct dirent *d;
-
- strbuf_addf(&path, "%s/worktrees", get_git_common_dir());
- if ((dir = opendir(path.buf)) == NULL) {
- strbuf_release(&path);
- return;
- }
-
- /*
- * $GIT_COMMON_DIR/HEAD is practically outside
- * $GIT_DIR so resolve_ref_unsafe() won't work (it
- * uses git_path). Parse the ref ourselves.
- */
- check_linked_checkout(new, NULL);
-
- while ((d = readdir(dir)) != NULL) {
- if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
- continue;
- check_linked_checkout(new, d->d_name);
- }
- strbuf_release(&path);
- closedir(dir);
-}
-
static int parse_branchname_arg(int argc, const char **argv,
int dwim_new_local_branch_ok,
struct branch_info *new,
{
struct tree **source_tree = &opts->source_tree;
const char **new_branch = &opts->new_branch;
- int force_detach = opts->force_detach;
int argcount = 0;
unsigned char branch_rev[20];
const char *arg;
else
new->path = NULL; /* not an existing branch */
- if (new->path && !force_detach && !*new_branch) {
- unsigned char sha1[20];
- int flag;
- char *head_ref = resolve_refdup("HEAD", 0, sha1, &flag);
- if (head_ref &&
- (!(flag & REF_ISSYMREF) || strcmp(head_ref, new->path)) &&
- !opts->ignore_other_worktrees)
- check_linked_checkouts(new);
- free(head_ref);
- }
-
new->commit = lookup_commit_reference_gently(rev, 1);
if (!new->commit) {
/* not a commit */
die(_("Cannot switch branch to a non-commit '%s'"),
new->name);
- if (opts->new_worktree)
- return prepare_linked_checkout(opts, new);
+ if (new->path && !opts->force_detach && !opts->new_branch &&
+ !opts->ignore_other_worktrees) {
+ unsigned char sha1[20];
+ int flag;
+ char *head_ref = resolve_refdup("HEAD", 0, sha1, &flag);
+ if (head_ref &&
+ (!(flag & REF_ISSYMREF) || strcmp(head_ref, new->path)))
+ die_if_checked_out(new->path);
+ free(head_ref);
+ }
if (!new->commit && opts->new_branch) {
unsigned char rev[20];
N_("do not limit pathspecs to sparse entries only")),
OPT_HIDDEN_BOOL(0, "guess", &dwim_new_local_branch,
N_("second guess 'git checkout <no-such-branch>'")),
- OPT_FILENAME(0, "to", &opts.new_worktree,
- N_("check a branch out in a separate working directory")),
OPT_BOOL(0, "ignore-other-worktrees", &opts.ignore_other_worktrees,
N_("do not check if another worktree is holding the given ref")),
OPT_END(),
opts.overwrite_ignore = 1;
opts.prefix = prefix;
- opts.saved_argv = xmalloc(sizeof(const char *) * (argc + 2));
- memcpy(opts.saved_argv, argv, sizeof(const char *) * (argc + 1));
-
gitmodules_config();
git_config(git_checkout_config, &opts);
argc = parse_options(argc, argv, prefix, options, checkout_usage,
PARSE_OPT_KEEP_DASHDASH);
- /* recursive execution from checkout_new_worktree() */
- opts.new_worktree_mode = getenv("GIT_CHECKOUT_NEW_WORKTREE") != NULL;
- if (opts.new_worktree_mode)
- opts.new_worktree = NULL;
-
- if (!opts.new_worktree)
- setup_work_tree();
-
if (conflict_style) {
opts.merge = 1; /* implied */
git_xmerge_config("merge.conflictstyle", conflict_style, NULL);