1 files changed, 20 insertions, 0 deletions
diff --git a/app/assets/javascripts/vue_shared/components/lib/utils/diff_utils.js b/app/assets/javascripts/vue_shared/components/lib/utils/diff_utils.js
new file mode 100644
index 00000000000..d1aba99ac22
--- /dev/null
+++ b/app/assets/javascripts/vue_shared/components/lib/utils/diff_utils.js
@@ -0,0 +1,20 @@
+/* eslint-disable import/prefer-default-export */
+
+function trimFirstCharOfLineContent(text) {
+  if (!text) {
+    return text;
+  }
+
+  return text.replace(/^( |\+|-)/, '');
+}
+
+function cleanSuggestionLine(line = {}) {
+  return {
+    ...line,
+    text: trimFirstCharOfLineContent(line.text),
+  };
+}
+
+export function selectDiffLines(lines) {
+  return lines.filter(line => line.type !== 'match').map(line => cleanSuggestionLine(line));
+}