feat: metrics generation workflow

.github/workflows/update-go-versions.yml

@@ -0,0 +1,35 @@
+---
+name: Generate Metric files for new Go version
+
+on:
+  workflow_dispatch:
+  schedule:
+    # Runs weekly during month of February and August
+    # Reference: https://go.dev/wiki/Go-Release-Cycle
+    - cron: '0 0 * 2,8 1'
+
+jobs:
+  update-go-versions:
+    name: Update Go Versions and Generate Tests
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Execute bash script
+        run: bash update-go-version.bash
+
+      # If there are no changes (i.e. no diff exists with the checked-out base branch),
+      # no pull request will be created and the action exits silently.
+      - name: Create a Pull Request
+        if: github.event_name != 'pull_request'
+        uses: peter-evans/create-pull-request@v6
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          commit-message: "Update Go Collector metrics for new Go version"
+          title: "chore: Update metrics for new Go version"
+          branch: update-metrics-for-new-go-version
+          base: main
+          draft: false
+          delete-branch: true

update-go-version.bash

@@ -0,0 +1,21 @@
+#!/bin/env bash
+
+set -e
+
+get_latest_versions() {
+  curl -s https://go.dev/VERSION?m=text | sed -E -n 's/go([0-9]+\.[0-9]+|\.[0-9]+).*/\1/p'
+}
+
+current_version=$(cat supported_go_versions.txt | head -n 1)
+latest_version=$(get_latest_versions)
+
+# Check for new version of Go, and generate go collector test files
+# New Go version gets appended at top of supported_go_versions.txt, and only top 3 versions are supported
+if [[ ! $current_version =~ $latest_version ]]; then
+  echo "New Go version available: $latest_version"
+  echo "Updating supported_go_versions.txt and generating Go Collector test files"
+  sed -i "1i $latest_version" supported_go_versions.txt
+  make generate-go-collector-test-files
+else
+  echo "No new Go version detected. Current Go version is: $current_version"
+fi