splitdiff_rs/
lib.rs

1//!
2//! The Splitdiff library.
3//!
4
5use std::collections::BTreeMap;
6
7use failure::Fail;
8
9#[derive(Debug, Fail)]
10pub enum Error {
11    #[fail(display = "lsdiff error {}", _0)]
12    Lsdiff(lsdiff_rs::Error),
13}
14
15pub type SplitdiffResult<T> = Result<T, Error>;
16
17pub struct PatchData(pub BTreeMap<String, Vec<Vec<String>>>);
18
19pub struct SplitDiff {
20    patch: String,
21}
22
23impl SplitDiff {
24    pub fn new(patch: &str) -> Self {
25        Self { patch: patch.to_owned() }
26    }
27
28    pub fn process(&self) -> SplitdiffResult<PatchData> {
29        let lines: Vec<&str> = self.patch.split('\n').map(|line| line.trim()).collect();
30
31        let mut data = BTreeMap::new();
32        for entry in lsdiff_rs::process(&self.patch).map_err(Error::Lsdiff)? {
33            let slice = &lines[entry.start_line..entry.start_line + entry.lines_count];
34            let hunk = slice.iter().map(|v| v.to_string()).collect();
35            data.entry(entry.input_path)
36                .or_insert_with(Vec::new)
37                .push(hunk);
38        }
39        Ok(PatchData(data))
40    }
41}
splitdiff_rs/lib.rs

splitdiff_rs/
lib.rs
