From: "Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>
To: git@vger.kernel.org
Cc: "Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>
Subject: [PATCH 06/10] worktree.c: add validate_worktree()
Date: Sat, 25 Jun 2016 09:54:29 +0200 [thread overview]
Message-ID: <20160625075433.4608-7-pclouds@gmail.com> (raw)
In-Reply-To: <20160625075433.4608-1-pclouds@gmail.com>
This function is later used by "worktree move" and "worktree remove"
to ensure that we have a good connection between the repository and
the worktree. For example, if a worktree is moved manually, the
worktree location recorded in $GIT_DIR/worktrees/.../gitdir is
incorrect and we should not move that one.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
worktree.c | 63 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
worktree.h | 5 +++++
2 files changed, 68 insertions(+)
diff --git a/worktree.c b/worktree.c
index 03f8ce9..d5149d8 100644
--- a/worktree.c
+++ b/worktree.c
@@ -291,6 +291,69 @@ const char *is_worktree_locked(struct worktree *wt)
return wt->lock_reason;
}
+static int report(int quiet, const char *fmt, ...)
+{
+ va_list params;
+
+ if (quiet)
+ return -1;
+
+ va_start(params, fmt);
+ vfprintf(stderr, fmt, params);
+ fputc('\n', stderr);
+ va_end(params);
+ return -1;
+}
+
+int validate_worktree(const struct worktree *wt, int quiet)
+{
+ struct strbuf sb = STRBUF_INIT;
+ const char *path;
+ int err;
+
+ if (is_main_worktree(wt)) {
+ /*
+ * Main worktree using .git file to point to the
+ * repository would make it impossible to know where
+ * the actual worktree is if this function is executed
+ * from another worktree. No .git file support for now.
+ */
+ strbuf_addf(&sb, "%s/.git", wt->path);
+ if (!is_directory(sb.buf)) {
+ strbuf_release(&sb);
+ return report(quiet, _("'%s/.git' at main worktree is not the repository directory"),
+ wt->path);
+ }
+ return 0;
+ }
+
+ /*
+ * Make sure "gitdir" file points to a real .git file and that
+ * file points back here.
+ */
+ if (!is_absolute_path(wt->path))
+ return report(quiet, _("'%s' file does not contain absolute path to the worktree location"),
+ git_common_path("worktrees/%s/gitdir", wt->id));
+
+ strbuf_addf(&sb, "%s/.git", wt->path);
+ if (!file_exists(sb.buf)) {
+ strbuf_release(&sb);
+ return report(quiet, _("'%s/.git' does not exist"), wt->path);
+ }
+
+ path = read_gitfile_gently(sb.buf, &err);
+ strbuf_release(&sb);
+ if (!path)
+ return report(quiet, _("'%s/.git' is not a .git file, error code %d"),
+ wt->path, err);
+
+ if (fspathcmp(path, real_path(git_common_path("worktrees/%s", wt->id))))
+ return report(quiet, _("'%s' does not point back to"),
+ wt->path, git_common_path("worktrees/%s", wt->id));
+
+ return 0;
+}
+
int is_worktree_being_rebased(const struct worktree *wt,
const char *target)
{
diff --git a/worktree.h b/worktree.h
index 90e1311..e782ae5 100644
--- a/worktree.h
+++ b/worktree.h
@@ -50,6 +50,11 @@ extern int is_main_worktree(const struct worktree *wt);
*/
extern const char *is_worktree_locked(struct worktree *wt);
+/*
+ * Return zero if the worktree is in good condition.
+ */
+extern int validate_worktree(const struct worktree *wt, int quiet);
+
/*
* Free up the memory for worktree(s)
*/
--
2.8.2.526.g02eed6d
next prev parent reply other threads:[~2016-06-25 8:11 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-25 7:54 [PATCH 00/10] git worktree (re)move Nguyễn Thái Ngọc Duy
2016-06-25 7:54 ` [PATCH 01/10] copy.c: import copy_file() from busybox Nguyễn Thái Ngọc Duy
2016-06-25 7:54 ` [PATCH 02/10] copy.c: delete unused code in copy_file() Nguyễn Thái Ngọc Duy
2016-06-25 7:54 ` [PATCH 03/10] copy.c: convert bb_(p)error_msg to error(_errno) Nguyễn Thái Ngọc Duy
2016-06-25 7:54 ` [PATCH 04/10] copy.c: style fix Nguyễn Thái Ngọc Duy
2016-06-25 7:54 ` [PATCH 05/10] copy.c: convert copy_file() to copy_dir_recursively() Nguyễn Thái Ngọc Duy
2017-08-01 18:23 ` Eric Sunshine
2016-06-25 7:54 ` Nguyễn Thái Ngọc Duy [this message]
2016-06-25 7:54 ` [PATCH 07/10] worktree.c: add update_worktree_location() Nguyễn Thái Ngọc Duy
2017-08-01 18:23 ` Eric Sunshine
2016-06-25 7:54 ` [PATCH 08/10] worktree: add "move" commmand Nguyễn Thái Ngọc Duy
2017-08-01 18:23 ` Eric Sunshine
2016-06-25 7:54 ` [PATCH 09/10] worktree move: accept destination as directory Nguyễn Thái Ngọc Duy
2016-06-25 7:54 ` [PATCH 10/10] worktree: add "remove" command Nguyễn Thái Ngọc Duy
2017-08-01 18:24 ` Eric Sunshine
2016-07-23 11:09 ` [PATCH 00/10] git worktree (re)move Duy Nguyen
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