Refactor workflows to streamline Go version update (#4101)

Rearranged steps in update-examples-cron workflow and added a dedicated step for Go version upgrades. Introduced scripts for fetching the latest Go patch version and updating build files automatically. Improved automation for managing Golang updates and generating corresponding pull requests.

Co-authored-by: Junie+Tolyan <[email protected]>

Author: korniltsev

.github/workflows/update-examples-cron.yml

@@ -13,10 +13,6 @@ jobs:
   update-examples-cron:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
-        with:
-          persist-credentials: false
-
       - id: get-secrets
         uses: grafana/shared-workflows/actions/get-vault-secrets@main
         with:
@@ -34,12 +30,34 @@ jobs:
           installation_retrieval_payload: ${{ env.GITHUB_APP_INSTALLATION_ID }}
           private_key: ${{ env.GITHUB_APP_PRIVATE_KEY }}
 
-      - run: |
+      - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+          clean: true
+
+      - name: "Update examples"
+        run: |
           make tools/update_examples
           if ! git diff --exit-code;
           then
             make tools/update_examples_pr
           fi
         env:
           GITHUB_TOKEN: ${{ steps.generate_token.outputs.token }}
-          GITHUB_REPOSITORY: ${{ github.repository }}
+          GITHUB_REPOSITORY: ${{ github.repository }}
+
+      - uses: actions/checkout@v4
+        with:
+          persist-credentials: false
+          clean: true
+
+      - name: "Upgrade golang"
+        run: |
+          ./tools/upgrade-go-version.sh
+          if ! git diff --exit-code ${{ github.sha }};
+          then
+            make tools/update_golang_pr
+          fi
+        env:
+          GITHUB_TOKEN: ${{ steps.generate_token.outputs.token }}
+          GITHUB_REPOSITORY: ${{ github.repository }}

Makefile.examples

@@ -16,6 +16,14 @@ tools/update_examples_pr:
 	gh pr create --head gh_bot_examples_update --title "chore(examples): update examples" --body "make tools/update_examples" --repo $(GITHUB_REPOSITORY) || \
 	   gh pr edit gh_bot_examples_update --title "chore(examples): update examples" --body "make tools/update_examples" --repo $(GITHUB_REPOSITORY)
 
+.PHONY: tools/update_golang_pr
+tools/update_golang_pr:
+	git config --local user.name 'Pyroscope Bot'
+	git config --local user.email '[email protected]'
+	git checkout -b gh_bot_golang_update
+	git push -f https://x-access-token:$(GITHUB_TOKEN)@github.com/$(GITHUB_REPOSITORY).git gh_bot_golang_update
+	gh pr create --head gh_bot_golang_update --title "chore: $(git log -1 --pretty=%B)" --body "" --repo $(GITHUB_REPOSITORY) || \
+	   gh pr edit gh_bot_golang_update --title "chore: $(git log -1 --pretty=%B)" --body "" --repo $(GITHUB_REPOSITORY)
 
 .PHONY: rideshare/docker/push
 rideshare/docker/push: IMAGE_PREFIX := us-docker.pkg.dev/grafanalabs-dev/docker-pyroscope-dev/

tools/get-latest-go-version.sh

@@ -0,0 +1,40 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+# Check if GITHUB_TOKEN is provided
+if [ -z "${GITHUB_TOKEN:-}" ]; then
+    echo "Error: GITHUB_TOKEN environment variable is required" >&2
+    exit 1
+fi
+
+# Extract current Go version from go.mod
+CURRENT_VERSION=$(grep -E "^go [0-9]+\.[0-9]+\.[0-9]+" go.mod | awk '{print $2}')
+
+if [ -z "$CURRENT_VERSION" ]; then
+    echo "Error: Could not determine Go version from go.mod" >&2
+    exit 1
+fi
+
+# Extract major and minor version
+MAJOR_MINOR=$(echo "$CURRENT_VERSION" | cut -d. -f1-2)
+
+echo "Current Go version in go.mod: $CURRENT_VERSION" >&2
+echo "Fetching latest patch version for $MAJOR_MINOR.x..." >&2
+
+# Fetch the latest patch version from golang/go repository
+ALL_TAGS=$(curl -s -H "Authorization: Bearer $GITHUB_TOKEN" "https://api.github.com/repos/golang/go/git/refs/tags")
+LATEST_VERSION=$(echo ${ALL_TAGS}|
+                grep -o '"ref": "refs/tags/go[0-9]\+\.[0-9]\+\.[0-9]\+"' |
+                grep "go$MAJOR_MINOR" |
+                sort -V |
+                tail -n 1 |
+                grep -o '[0-9]\+\.[0-9]\+\.[0-9]\+')
+
+if [ -z "$LATEST_VERSION" ]; then
+    echo "Error: Could not determine latest patch version for $MAJOR_MINOR.x" >&2
+    exit 1
+fi
+
+echo "Debug: Latest patch version for $MAJOR_MINOR.x: $LATEST_VERSION" >&2
+echo "$LATEST_VERSION"

tools/upgrade-go-version.sh

@@ -2,22 +2,39 @@
 
 set -euo pipefail
 
-if [ $# -ne 1 ]; then
-    echo "Usage: $0 <version>"
-    exit 1
+# If no arguments provided, determine the version from go.mod and fetch the latest patch version
+if [ $# -eq 0 ]; then
+    # Use the get-latest-go-version.sh script to get the latest patch version
+    SCRIPT_DIR="$(dirname "$(readlink -f "$0")")"
+    VERSION=$("$SCRIPT_DIR/get-latest-go-version.sh")
+
+    if [ -z "$VERSION" ]; then
+        echo "Error: Could not determine latest patch version"
+        exit 1
+    fi
+else
+    # Use the provided version
+    if [ $# -ne 1 ]; then
+        echo "Usage: $0 [version]"
+        echo "If version is not provided, the latest patch version matching the current go.mod minor version will be used."
+        exit 1
+    fi
+    VERSION="$1"
 fi
 
+echo "Updating Go version to $VERSION"
+
 # update ci/cd versions
-git ls-files .github/workflows | xargs sed -i 's/go-version:\([ \["]\+\)\([0-9\.\=<>]\+\)/go-version:\1'$1'/g' 
+git ls-files .github/workflows | xargs sed -i 's/go-version:\([ \["]\+\)\([0-9\.\=<>]\+\)/go-version:\1'$VERSION'/g' 
 
 # update goreleaser check
-sed -i 's/go version go[0-9\.]\+/go version go'$1'/g' .goreleaser.yaml
+sed -i 's/go version go[0-9\.]\+/go version go'$VERSION'/g' .goreleaser.yaml
 
 # update all dockerfile versions, skips the elf tests from ebpf
 DOCKER_FILES=$(git ls-files '**/Dockerfile*' | grep -v ebpf/symtab/elf/testdata/Dockerfile)
-sed -i 's/golang:[0-9\.]\+/golang:'$1'/g' $DOCKER_FILES
+sed -i 's/golang:[0-9\.]\+/golang:'$VERSION'/g' $DOCKER_FILES
 git add -u $DOCKER_FILES
 
 # add changes
 git add -u .github/workflows .goreleaser.yaml
-git commit -m "Update golang version to $1"
+git commit -m "Update golang version to $VERSION"