hh_cli/tool/
diff.rs

1use similar::{ChangeTag, TextDiff};
2
3pub struct LineDiff {
4    pub added_lines: usize,
5    pub removed_lines: usize,
6    pub unified: String,
7}
8
9pub fn build_unified_line_diff(before: &str, after: &str, path: &str) -> LineDiff {
10    let diff = TextDiff::from_lines(before, after);
11    let mut added_lines = 0;
12    let mut removed_lines = 0;
13
14    for change in diff.iter_all_changes() {
15        match change.tag() {
16            ChangeTag::Insert => added_lines += 1,
17            ChangeTag::Delete => removed_lines += 1,
18            ChangeTag::Equal => {}
19        }
20    }
21
22    let unified = diff
23        .unified_diff()
24        .context_radius(3)
25        .header(&format!("a/{path}"), &format!("b/{path}"))
26        .to_string();
27
28    LineDiff {
29        added_lines,
30        removed_lines,
31        unified,
32    }
33}
hh_cli/tool/diff.rs

hh_cli/tool/
diff.rs
