1 files changed, 101 insertions, 0 deletions
diff --git a/vendor/gix/src/worktree/proxy.rs b/vendor/gix/src/worktree/proxy.rs
new file mode 100644
index 000000000..8a77db815
--- /dev/null
+++ b/vendor/gix/src/worktree/proxy.rs
@@ -0,0 +1,101 @@
+#![allow(clippy::result_large_err)]
+use std::path::{Path, PathBuf};
+
+use crate::{
+    bstr::{BStr, BString, ByteSlice},
+    worktree::Proxy,
+    Repository, ThreadSafeRepository,
+};
+
+#[allow(missing_docs)]
+pub mod into_repo {
+    use std::path::PathBuf;
+
+    /// The error returned by [`Proxy::into_repo()`][super::Proxy::into_repo()].
+    #[derive(Debug, thiserror::Error)]
+    #[allow(missing_docs)]
+    pub enum Error {
+        #[error(transparent)]
+        Open(#[from] crate::open::Error),
+        #[error("Worktree at '{}' is inaccessible", .base.display())]
+        MissingWorktree { base: PathBuf },
+        #[error(transparent)]
+        MissingGitDirFile(#[from] std::io::Error),
+    }
+}
+
+impl<'repo> Proxy<'repo> {
+    pub(crate) fn new(parent: &'repo Repository, git_dir: impl Into<PathBuf>) -> Self {
+        Proxy {
+            parent,
+            git_dir: git_dir.into(),
+        }
+    }
+}
+
+impl<'repo> Proxy<'repo> {
+    /// Read the location of the checkout, the base of the work tree.
+    /// Note that the location might not exist.
+    pub fn base(&self) -> std::io::Result<PathBuf> {
+        let git_dir = self.git_dir.join("gitdir");
+        let base_dot_git = gix_discover::path::from_plain_file(&git_dir).ok_or_else(|| {
+            std::io::Error::new(
+                std::io::ErrorKind::NotFound,
+                format!("Required file '{}' does not exist", git_dir.display()),
+            )
+        })??;
+
+        Ok(gix_discover::path::without_dot_git_dir(base_dot_git))
+    }
+
+    /// The git directory for the work tree, typically contained within the parent git dir.
+    pub fn git_dir(&self) -> &Path {
+        &self.git_dir
+    }
+
+    /// The name of the worktree, which is derived from its folder within the `worktrees` directory within the parent `.git` folder.
+    pub fn id(&self) -> &BStr {
+        gix_path::os_str_into_bstr(self.git_dir.file_name().expect("worktrees/ parent dir"))
+            .expect("no illformed UTF-8")
+    }
+
+    /// Return true if the worktree cannot be pruned, moved or deleted, which is useful if it is located on an external storage device.
+    pub fn is_locked(&self) -> bool {
+        self.git_dir.join("locked").is_file()
+    }
+
+    /// Provide a reason for the locking of this worktree, if it is locked at all.
+    ///
+    /// Note that we squelch errors in case the file cannot be read in which case the
+    /// reason is an empty string.
+    pub fn lock_reason(&self) -> Option<BString> {
+        std::fs::read(self.git_dir.join("locked"))
+            .ok()
+            .map(|contents| contents.trim().into())
+    }
+
+    /// Transform this proxy into a [`Repository`] while ignoring issues reading `base()` and ignoring that it might not exist.
+    ///
+    /// Most importantly, the `Repository` might be initialized with a non-existing work tree directory as the checkout
+    /// was removed or moved in the mean time or is unavailable for other reasons.
+    /// The caller will encounter io errors if it's used like the work tree is guaranteed to be present, but can still access
+    /// a lot of information if work tree access is avoided.
+    pub fn into_repo_with_possibly_inaccessible_worktree(self) -> Result<Repository, crate::open::Error> {
+        let base = self.base().ok();
+        let repo = ThreadSafeRepository::open_from_paths(self.git_dir, base, self.parent.options.clone())?;
+        Ok(repo.into())
+    }
+
+    /// Like `into_repo_with_possibly_inaccessible_worktree()` but will fail if the `base()` cannot be read or
+    /// if the worktree doesn't exist.
+    ///
+    /// Note that it won't fail if the worktree doesn't exist.
+    pub fn into_repo(self) -> Result<Repository, into_repo::Error> {
+        let base = self.base()?;
+        if !base.is_dir() {
+            return Err(into_repo::Error::MissingWorktree { base });
+        }
+        let repo = ThreadSafeRepository::open_from_paths(self.git_dir, base.into(), self.parent.options.clone())?;
+        Ok(repo.into())
+    }
+}