From b8235e461fdbfef94726def071380b150559baf8 Mon Sep 17 00:00:00 2001
From: Tony Reed <116904476+DI-Tony-Reed@users.noreply.github.com>
Date: Mon, 14 Oct 2024 15:32:43 -0500
Subject: [PATCH] Add test coverage pipeline step (#4)

* test WIP

* Update coverage badge

* add coverage echo for testing

* update if statement

* update if statement

* Update coverage badge

* update shield color

* Update coverage badge

* update readme.md directly rather than a separate md

* update workflow to remove redundant steps

* update  shell var & add baseline coverage badge

* update badge to something wrong for pipeline to fix as test

* debug

* update markdown

* debug

* debug

* update syntax

* update syntax

* Update coverage badge to %

* finish workflow

---------

Co-authored-by: GitHub Actions <actions@github.com>
Co-authored-by: GitHub Action <action@github.com>
---
 .github/workflows/update-tests-coverage.yml | 63 +++++++++++++++++++++
 README.md                                   |  1 +
 2 files changed, 64 insertions(+)
 create mode 100644 .github/workflows/update-tests-coverage.yml

diff --git a/.github/workflows/update-tests-coverage.yml b/.github/workflows/update-tests-coverage.yml
new file mode 100644
index 0000000..00ccd12
--- /dev/null
+++ b/.github/workflows/update-tests-coverage.yml
@@ -0,0 +1,63 @@
+# https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-go
+
+name: Update Tests Coverage
+
+on:
+  push:
+    branches: [ "main" ]
+
+jobs:
+
+  build:
+    name: Go test coverage
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v4
+        with:
+          go-version: '1.22'
+
+      - name: Install dependencies
+        run: go get .
+
+      - name: Build
+        run: go build -v ./...
+
+      - name: Run tests and generate coverage badge
+        id: badge
+        run: |
+          go test -coverprofile=coverage.out ./...
+          COVERAGE=$(go tool cover -func=coverage.out | grep total | awk '{print $3}' | sed 's/%//')
+          echo "Coverage: $COVERAGE"
+          
+          COLOR="gray"
+          if (( $(echo "$COVERAGE < 50" | bc -l) )); then
+            COLOR="red"
+          elif (( $(echo "$COVERAGE >= 50 && $COVERAGE < 80" | bc -l) )); then
+            COLOR="yellow"
+          elif (( $(echo "$COVERAGE >= 80 && $COVERAGE < 90" | bc -l) )); then
+            COLOR="green"
+          elif (( $(echo "$COVERAGE >= 90" | bc -l) )); then
+            COLOR="brightgreen"
+          fi
+          
+          BADGE_MARKDOWN="![Coverage Badge](https://img.shields.io/badge/Coverage-${COVERAGE}%25-${COLOR}.svg)"
+          sed -i "s|!\[Coverage Badge\](.*)|$BADGE_MARKDOWN|g" README.md
+
+      - name: Commit coverage badge
+        continue-on-error: true
+        run: |
+          git config --local user.email "action@github.com"
+          git config --local user.name "GitHub Action"
+          git add README.md
+          if ! git diff-index --quiet HEAD --; then
+            git commit -m "Update coverage badge to $COVERAGE%"
+            git push
+          else
+            echo "No changes to commit."
+          fi
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
diff --git a/README.md b/README.md
index 70b4cb8..7716b91 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,5 @@
 [![Tests](https://github.com/DI-Tony-Reed/JSONDiff/actions/workflows/tests.yaml/badge.svg)](https://github.com/DI-Tony-Reed/JSONDiff/actions/workflows/tests.yaml)
+![Coverage Badge](https://img.shields.io/badge/Coverage-93.8%25-brightgreen.svg)
 
 # What is this
 This tool accepts two JSON Snyk scans and returns the difference between them. It utilizes a slightly modified version of https://github.com/hezro/snyk-code-pr-diff for the comparison.