const parse = require('@noname-land/parse-diff');
const diff = `\
diff --git a/test b/test
deleted file mode 100644
index db81be4..0000000
--- b/test
+++ /dev/null
@@ -1,2 +0,0 @@
-line1
-line2\
`;
const files = parse(diff);
console.log(files.length); // number of changed files

files.forEach(file => {
  // number of chunks
  console.log(file.chunks.length); 
  
  // chunk added/deleted/unchanged lines
  console.log(file.chunks[0].lines.length) 
  
  // number of deletions in the diff
  console.log(file.deletions); 
  
  // number of additions in the diff
  console.log(file.additions); 
});