]> git.ipfire.org Git - thirdparty/git.git/blobdiff - builtin/checkout.c
Merge 'hv/submodule-config' to 'sb/submodule-helper'
[thirdparty/git.git] / builtin / checkout.c
index f1f168d2f60ab76a10641b57d9c0834f03a228a0..7ea533e4ab6a244297068fe8a376c094e7d42291 100644 (file)
@@ -20,8 +20,6 @@
 #include "resolve-undo.h"
 #include "submodule-config.h"
 #include "submodule.h"
-#include "argv-array.h"
-#include "sigchain.h"
 
 static const char * const checkout_usage[] = {
        N_("git checkout [<options>] <branch>"),
@@ -52,8 +50,6 @@ struct checkout_opts {
        struct pathspec pathspec;
        struct tree *source_tree;
 
-       const char *new_worktree;
-       const char **saved_argv;
        int new_worktree_mode;
 };
 
@@ -274,9 +270,6 @@ static int checkout_paths(const struct checkout_opts *opts,
                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);
@@ -620,22 +613,20 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
        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;
-
-                               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);
-                               log_all_ref_updates = temp;
-                               strbuf_release(&log_file);
+                               char *refname;
+                               struct strbuf err = STRBUF_INIT;
+
+                               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'\n"),
-                                           opts->new_orphan_branch);
+                                       fprintf(stderr, _("Can not do reflog for '%s': %s\n"),
+                                               opts->new_orphan_branch, err.buf);
+                                       strbuf_release(&err);
                                        return;
                                }
+                               strbuf_release(&err);
                        }
                }
                else
@@ -703,10 +694,10 @@ static void update_refs_for_switch(const struct checkout_opts *opts,
 }
 
 static int add_pending_uninteresting_ref(const char *refname,
-                                        const unsigned char *sha1,
+                                        const struct object_id *oid,
                                         int flags, void *cb_data)
 {
-       add_pending_sha1(cb_data, refname, sha1, UNINTERESTING);
+       add_pending_sha1(cb_data, refname, oid->hash, UNINTERESTING);
        return 0;
 }
 
@@ -851,138 +842,6 @@ static int switch_branches(const struct checkout_opts *opts,
        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")) {
@@ -1111,7 +970,6 @@ static int parse_branchname_arg(int argc, const char **argv,
 {
        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;
@@ -1232,17 +1090,6 @@ static int parse_branchname_arg(int argc, const char **argv,
        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 */
@@ -1322,8 +1169,16 @@ static int checkout_branch(struct checkout_opts *opts,
                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) {
+               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);
+       }
 
        if (!new->commit && opts->new_branch) {
                unsigned char rev[20];
@@ -1367,8 +1222,6 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
                         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(),
@@ -1379,9 +1232,6 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
        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);
 
@@ -1390,13 +1240,7 @@ int cmd_checkout(int argc, const char **argv, const char *prefix)
        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 */