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authorJunio C Hamano <gitster@pobox.com>2015-08-12 21:09:56 (GMT)
committerJunio C Hamano <gitster@pobox.com>2015-08-12 21:09:56 (GMT)
commit53860f03927fea9c46d64b556a06fffe4b46e41f (patch)
tree356d50e67d39bc96390d50a81c3976fb831c012f /builtin/worktree.c
parent7aa2da616208a51ec51ce3639fe6abd9631b74db (diff)
parent65f9b75dfe34a67cf4c6a8507f999c5710d36ba9 (diff)
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Merge branch 'es/worktree-add-cleanup'
The "new-worktree-mode" hack in "checkout" that was added in nd/multiple-work-trees topic has been removed by updating the implementation of new "worktree add". * es/worktree-add-cleanup: (25 commits) Documentation/git-worktree: fix duplicated 'from' Documentation/config: mention "now" and "never" for 'expire' settings Documentation/git-worktree: fix broken 'linkgit' invocation checkout: drop intimate knowledge of newly created worktree worktree: populate via "git reset --hard" rather than "git checkout" worktree: avoid resolving HEAD unnecessarily worktree: make setup of new HEAD distinct from worktree population worktree: detect branch-name/detached and error conditions locally worktree: add_worktree: construct worktree-population command locally worktree: elucidate environment variables intended for child processes worktree: make branch creation distinct from worktree population worktree: add: suppress auto-vivication with --detach and no <branch> worktree: make --detach mutually exclusive with -b/-B worktree: introduce options container worktree: simplify new branch (-b/-B) option checking worktree: improve worktree setup message branch: publish die_if_checked_out() checkout: teach check_linked_checkout() about symbolic link HEAD checkout: check_linked_checkout: simplify symref parsing checkout: check_linked_checkout: improve "already checked out" aesthetic ...
Diffstat (limited to 'builtin/worktree.c')
-rw-r--r--builtin/worktree.c123
1 files changed, 83 insertions, 40 deletions
diff --git a/builtin/worktree.c b/builtin/worktree.c
index 6a264ee..430b51e 100644
--- a/builtin/worktree.c
+++ b/builtin/worktree.c
@@ -3,6 +3,8 @@
#include "dir.h"
#include "parse-options.h"
#include "argv-array.h"
+#include "branch.h"
+#include "refs.h"
#include "run-command.h"
#include "sigchain.h"
#include "refs.h"
@@ -13,6 +15,13 @@ static const char * const worktree_usage[] = {
NULL
};
+struct add_opts {
+ int force;
+ int detach;
+ const char *new_branch;
+ int force_new_branch;
+};
+
static int show_only;
static int verbose;
static unsigned long expire;
@@ -172,19 +181,35 @@ static const char *worktree_basename(const char *path, int *olen)
return name;
}
-static int add_worktree(const char *path, const char **child_argv)
+static int add_worktree(const char *path, const char *refname,
+ const struct add_opts *opts)
{
struct strbuf sb_git = STRBUF_INIT, sb_repo = STRBUF_INIT;
struct strbuf sb = STRBUF_INIT;
const char *name;
struct stat st;
struct child_process cp;
+ struct argv_array child_env = ARGV_ARRAY_INIT;
int counter = 0, len, ret;
- unsigned char rev[20];
+ struct strbuf symref = STRBUF_INIT;
+ struct commit *commit = NULL;
if (file_exists(path) && !is_empty_dir(path))
die(_("'%s' already exists"), path);
+ /* is 'refname' a branch or commit? */
+ if (opts->force_new_branch) /* definitely a branch */
+ ;
+ else if (!opts->detach && !strbuf_check_branch_ref(&symref, refname) &&
+ ref_exists(symref.buf)) { /* it's a branch */
+ if (!opts->force)
+ die_if_checked_out(symref.buf);
+ } else { /* must be a commit */
+ commit = lookup_commit_reference_by_name(refname);
+ if (!commit)
+ die(_("invalid reference: %s"), refname);
+ }
+
name = worktree_basename(path, &len);
strbuf_addstr(&sb_repo,
git_path("worktrees/%.*s", (int)(path + len - name), name));
@@ -228,32 +253,40 @@ static int add_worktree(const char *path, const char **child_argv)
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. Moreover, HEAD
- * in the new worktree must resolve to the same value as HEAD in
- * the current tree since the command invoked to populate the new
- * worktree will be handed the branch/ref specified by the user.
- * For instance, if the user asks for the new worktree to be based
- * at HEAD~5, then the resolved HEAD~5 in the new worktree must
- * match the resolved HEAD~5 in the current tree in order to match
- * the user's expectation.
+ * or is_git_directory() will reject the directory. Any value which
+ * looks like an object ID will do since it will be immediately
+ * replaced by the symbolic-ref or update-ref invocation in the new
+ * worktree.
*/
- if (!resolve_ref_unsafe("HEAD", 0, rev, NULL))
- die(_("unable to resolve HEAD"));
strbuf_reset(&sb);
strbuf_addf(&sb, "%s/HEAD", sb_repo.buf);
- write_file(sb.buf, 1, "%s\n", sha1_to_hex(rev));
+ write_file(sb.buf, 1, "0000000000000000000000000000000000000000\n");
strbuf_reset(&sb);
strbuf_addf(&sb, "%s/commondir", sb_repo.buf);
write_file(sb.buf, 1, "../..\n");
- fprintf_ln(stderr, _("Enter %s (identifier %s)"), path, name);
+ fprintf_ln(stderr, _("Preparing %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);
+ argv_array_pushf(&child_env, "%s=%s", GIT_DIR_ENVIRONMENT, sb_git.buf);
+ argv_array_pushf(&child_env, "%s=%s", GIT_WORK_TREE_ENVIRONMENT, path);
memset(&cp, 0, sizeof(cp));
cp.git_cmd = 1;
- cp.argv = child_argv;
+
+ if (commit)
+ argv_array_pushl(&cp.args, "update-ref", "HEAD",
+ sha1_to_hex(commit->object.sha1), NULL);
+ else
+ argv_array_pushl(&cp.args, "symbolic-ref", "HEAD",
+ symref.buf, NULL);
+ cp.env = child_env.argv;
+ ret = run_command(&cp);
+ if (ret)
+ goto done;
+
+ cp.argv = NULL;
+ argv_array_clear(&cp.args);
+ argv_array_pushl(&cp.args, "reset", "--hard", NULL);
+ cp.env = child_env.argv;
ret = run_command(&cp);
if (!ret) {
is_junk = 0;
@@ -262,10 +295,13 @@ static int add_worktree(const char *path, const char **child_argv)
junk_work_tree = NULL;
junk_git_dir = NULL;
}
+done:
strbuf_reset(&sb);
strbuf_addf(&sb, "%s/locked", sb_repo.buf);
unlink_or_warn(sb.buf);
+ argv_array_clear(&child_env);
strbuf_release(&sb);
+ strbuf_release(&symref);
strbuf_release(&sb_repo);
strbuf_release(&sb_git);
return ret;
@@ -273,47 +309,54 @@ static int add_worktree(const char *path, const char **child_argv)
static int add(int ac, const char **av, const char *prefix)
{
- int force = 0, detach = 0;
- const char *new_branch = NULL, *new_branch_force = NULL;
+ struct add_opts opts;
+ const char *new_branch_force = NULL;
const char *path, *branch;
- struct argv_array cmd = ARGV_ARRAY_INIT;
struct option options[] = {
- OPT__FORCE(&force, N_("checkout <branch> even if already checked out in other worktree")),
- OPT_STRING('b', NULL, &new_branch, N_("branch"),
+ OPT__FORCE(&opts.force, N_("checkout <branch> even if already checked out in other worktree")),
+ OPT_STRING('b', NULL, &opts.new_branch, N_("branch"),
N_("create a new branch")),
OPT_STRING('B', NULL, &new_branch_force, N_("branch"),
N_("create or reset a branch")),
- OPT_BOOL(0, "detach", &detach, N_("detach HEAD at named commit")),
+ OPT_BOOL(0, "detach", &opts.detach, N_("detach HEAD at named commit")),
OPT_END()
};
+ memset(&opts, 0, sizeof(opts));
ac = parse_options(ac, av, prefix, options, worktree_usage, 0);
- if (new_branch && new_branch_force)
- die(_("-b and -B are mutually exclusive"));
+ if (!!opts.detach + !!opts.new_branch + !!new_branch_force > 1)
+ die(_("-b, -B, and --detach are mutually exclusive"));
if (ac < 1 || ac > 2)
usage_with_options(worktree_usage, options);
path = prefix ? prefix_filename(prefix, strlen(prefix), av[0]) : av[0];
branch = ac < 2 ? "HEAD" : av[1];
- if (ac < 2 && !new_branch && !new_branch_force) {
+ opts.force_new_branch = !!new_branch_force;
+ if (opts.force_new_branch)
+ opts.new_branch = new_branch_force;
+
+ if (ac < 2 && !opts.new_branch && !opts.detach) {
int n;
const char *s = worktree_basename(path, &n);
- new_branch = xstrndup(s, n);
+ opts.new_branch = xstrndup(s, n);
+ }
+
+ if (opts.new_branch) {
+ struct child_process cp;
+ memset(&cp, 0, sizeof(cp));
+ cp.git_cmd = 1;
+ argv_array_push(&cp.args, "branch");
+ if (opts.force_new_branch)
+ argv_array_push(&cp.args, "--force");
+ argv_array_push(&cp.args, opts.new_branch);
+ argv_array_push(&cp.args, branch);
+ if (run_command(&cp))
+ return -1;
+ branch = opts.new_branch;
}
- argv_array_push(&cmd, "checkout");
- if (force)
- argv_array_push(&cmd, "--ignore-other-worktrees");
- if (new_branch)
- argv_array_pushl(&cmd, "-b", new_branch, NULL);
- if (new_branch_force)
- argv_array_pushl(&cmd, "-B", new_branch_force, NULL);
- if (detach)
- argv_array_push(&cmd, "--detach");
- argv_array_push(&cmd, branch);
-
- return add_worktree(path, cmd.argv);
+ return add_worktree(path, branch, &opts);
}
int cmd_worktree(int ac, const char **av, const char *prefix)