use bstr::ByteSlice; pub(crate) mod pipeline;mod platform;mod slider;mod textconv;mod unified_diff; pub(crate) fn new_attributes_stack(worktree_root: impl Into<std::path::PathBuf>) -> gix_worktree::Stack {    gix_worktree::Stack::new(        worktree_root,        gix_worktree::stack::State::AttributesStack(gix_worktree::stack::state::Attributes::new(            Default::default(),            None,            gix_worktree::stack::state::attributes::Source::WorktreeThenIdMapping,            Default::default(),        )),        gix_worktree::glob::pattern::Case::Sensitive,        Vec::new(),        Vec::new(),    )} pub(crate) fn skip_header_and_fold_to_unidiff(content: &[u8]) -> String {    let mut lines = content.lines();     assert!(lines.next().expect("diff header").starts_with(b"diff --git "));    assert!(lines.next().expect("index header").starts_with(b"index "));    assert!(lines.next().expect("--- header").starts_with(b"--- "));    assert!(lines.next().expect("+++ header").starts_with(b"+++ "));     let mut out = String::new();    for line in lines {        if line.starts_with(b"\\") {            continue;        }        let line = line.to_str().expect("baseline diff is valid utf-8");        if let Some((ranges, _section)) = line.strip_prefix("@@ ").and_then(|line| line.split_once(" @@")) {            out.push_str("@@ ");            out.push_str(ranges);            out.push_str(" @@");        } else {            out.push_str(line);        }        out.push('\n');    }    out} #[test]fn git_hunk_sections_are_omitted_from_unified_diff_baselines() {    let git = br#"diff --git a/before b/afterindex 0000000..1111111 100644--- a/before+++ b/after@@ -1,3 +1,3 @@ fn example() { fn example() {-    before();+    after(); }"#;    let expected = r#"@@ -1,3 +1,3 @@ fn example() {-    before();+    after(); }"#;     assert_eq!(        skip_header_and_fold_to_unidiff(git),        expected,        "Git's optional hunk section isn't part of gix-diff's unified diff output"    );}