1 files changed, 36 insertions, 0 deletions
diff --git a/vendor/gix/src/reference/log.rs b/vendor/gix/src/reference/log.rs
new file mode 100644
index 000000000..b516e6499
--- /dev/null
+++ b/vendor/gix/src/reference/log.rs
@@ -0,0 +1,36 @@
+//!
+use gix_object::commit::MessageRef;
+use gix_ref::file::ReferenceExt;
+
+use crate::{
+    bstr::{BStr, BString, ByteVec},
+    Reference,
+};
+
+impl<'repo> Reference<'repo> {
+    /// Return a platform for obtaining iterators over reference logs.
+    pub fn log_iter(&self) -> gix_ref::file::log::iter::Platform<'_, '_> {
+        self.inner.log_iter(&self.repo.refs)
+    }
+}
+
+/// Generate a message typical for git commit logs based on the given `operation`, commit `message` and `num_parents` of the commit.
+pub fn message(operation: &str, message: &BStr, num_parents: usize) -> BString {
+    let mut out = BString::from(operation);
+    if let Some(commit_type) = commit_type_by_parents(num_parents) {
+        out.push_str(b" (");
+        out.extend_from_slice(commit_type.as_bytes());
+        out.push_byte(b')');
+    }
+    out.push_str(b": ");
+    out.extend_from_slice(&MessageRef::from_bytes(message).summary());
+    out
+}
+
+pub(crate) fn commit_type_by_parents(count: usize) -> Option<&'static str> {
+    Some(match count {
+        0 => "initial",
+        1 => return None,
+        _two_or_more => "merge",
+    })
+}