1 files changed, 33 insertions, 0 deletions
diff --git a/vendor/gix-odb/src/alternate/parse.rs b/vendor/gix-odb/src/alternate/parse.rs
new file mode 100644
index 000000000..1c297d153
--- /dev/null
+++ b/vendor/gix-odb/src/alternate/parse.rs
@@ -0,0 +1,33 @@
+use std::{borrow::Cow, path::PathBuf};
+
+use gix_object::bstr::ByteSlice;
+
+/// Returned as part of [`crate::alternate::Error::Parse`]
+#[derive(thiserror::Error, Debug)]
+#[allow(missing_docs)]
+pub enum Error {
+    #[error("Could not obtain an object path for the alternate directory '{}'", String::from_utf8_lossy(.0))]
+    PathConversion(Vec<u8>),
+    #[error("Could not unquote alternate path")]
+    Unquote(#[from] gix_quote::ansi_c::undo::Error),
+}
+
+pub(crate) fn content(input: &[u8]) -> Result<Vec<PathBuf>, Error> {
+    let mut out = Vec::new();
+    for line in input.split(|b| *b == b'\n') {
+        let line = line.as_bstr();
+        if line.is_empty() || line.starts_with(b"#") {
+            continue;
+        }
+        out.push(
+            gix_path::try_from_bstr(if line.starts_with(b"\"") {
+                gix_quote::ansi_c::undo(line)?.0
+            } else {
+                Cow::Borrowed(line)
+            })
+            .map_err(|_| Error::PathConversion(line.to_vec()))?
+            .into_owned(),
+        )
+    }
+    Ok(out)
+}