DiffParser is a Golang package which parse's a git diff.
go get github.com/Nomango/diffparser
package main
import (
"fmt"
"github.com/Nomango/diffparser"
)
// error handling left out for brevity
func main() {
byt, _ := ioutil.ReadFile("example.diff")
diff, _ := diffparser.Parse(string(byt))
// You now have a slice of files from the diff,
file := diff.Files[0]
// diff hunks in the file,
hunk := file.Hunks[0]
// new and old ranges in the hunk
newRange := hunk.NewRange
// and lines in the ranges.
line := newRange.Lines[0]
}
See diffparser_test.go for further examples.