Add script to perform release (#9174)

Author: PerfectSlayer

repository.datadog.yaml

@@ -0,0 +1,4 @@
+---
+schema-version: v1
+kind: mergequeue
+enable: false

tooling/perform-release.sh

@@ -0,0 +1,92 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# Ask for confirmation before continuing the release
+function confirmOrAbort() {
+    read -p "Do you want to continue? (y/N): " -n 1 -r
+    echo
+    if [[ ! $REPLY =~ ^[Yy]$ ]]; then
+        echo "Aborting."
+        exit 1
+    fi
+}
+
+# Check if current branch is either 'master' or 'release/v*'
+CURRENT_BRANCH=$(git rev-parse --abbrev-ref HEAD)
+if [[ "$CURRENT_BRANCH" == "master" ]]; then
+    MINOR_RELEASE=true
+elif [[ "$CURRENT_BRANCH" =~ ^release/v[0-9]+\.[0-9]+\.x$ ]]; then
+    MINOR_RELEASE=false
+else
+    echo "❌ Please check out either 'master' branch or a 'release/v*' branch to perform a release first."
+    exit 1
+fi
+echo -n "✅ Current branch is '$CURRENT_BRANCH'. Performing a "
+if [ "$MINOR_RELEASE" = true ]; then
+    echo "minor release."
+else
+    echo "patch release."
+fi
+
+# Check upstream branch is set
+if ! git rev-parse --abbrev-ref --symbolic-full-name "@{u}" >/dev/null 2>&1; then
+    echo "❌ No upstream branch set. Please set the upstream branch for the current branch."
+    exit 1
+fi
+
+# Get the remote name
+REMOTE=$(git config --get "branch.$CURRENT_BRANCH.remote")
+if [ -z "$REMOTE" ]; then
+    echo "❌ Unable to determine the remote name. Please ensure you have a remote set."
+    exit 1
+fi
+
+# Check if working copy is clean
+if ! git diff-index --quiet HEAD; then
+    echo "❌ Working copy is not clean. Please commit or stash your changes before performing a release."
+    exit 1
+fi
+
+# Check if clone is up to date
+if ! git fetch "$REMOTE" --quiet ; then
+    echo "❌ Unable to fetch the latest changes from $REMOTE. Please check your network connection."
+    exit 1
+fi
+if ! git diff-index --quiet "$REMOTE/$CURRENT_BRANCH"; then
+    echo "❌ Working copy is not up to date with $REMOTE/$CURRENT_BRANCH. Please pull the latest changes before performing a release."
+    exit 1
+fi
+echo "✅ Working copy is clean and up-to-date."
+
+# Check the git log history
+LAST_RELEASE_TAG=$(git describe --tags --abbrev=0 --match='v[0-9]*.[0-9]*.[0-9]*')
+echo "ℹ️ Last release version: $LAST_RELEASE_TAG"
+SUSPICIOUS_COMMITS=$(git log --oneline --first-parent "$LAST_RELEASE_TAG"..HEAD | grep -E -v "Merge pull request #" | grep -E -v "\(#")
+if [ -n "$SUSPICIOUS_COMMITS" ]; then
+    echo "❌ The following commits are not merge commits and may not be suitable for a release:"
+    echo "$SUSPICIOUS_COMMITS"
+    echo "Please review these commits before proceeding with the release."
+    confirmOrAbort
+else
+    echo "✅ All commits since the last release are merge commits."
+fi
+
+# Get the next release version
+VERSION=$(echo "$LAST_RELEASE_TAG" | grep -E '^v[0-9]+\.[0-9]+\.0$' | sed 's/^v//')
+if [ -z "$VERSION" ]; then
+    echo "❌ Unable to determine the next release version from the last release tag: $LAST_RELEASE_TAG"
+    exit 1
+fi
+if [ "$MINOR_RELEASE" = true ]; then
+    NEXT_RELEASE_VERSION=$(echo "$VERSION" | awk -F. '{printf "v%d.%d.0", $1, $2 + 1}')
+else
+    NEXT_RELEASE_VERSION=$(echo "$VERSION" | awk -F. '{printf "v%d.%d.%d", $1, $2, $3 + 1}')
+fi
+echo "ℹ️ Next release version: $NEXT_RELEASE_VERSION"
+
+# Create and push the release tag
+echo "ℹ️ The release tag will be created and pushed. No abort is possible after this point."
+confirmOrAbort
+git tag -a -s -m "Release $NEXT_RELEASE_VERSION" "$NEXT_RELEASE_VERSION"
+git push "$REMOTE" "$NEXT_RELEASE_VERSION" --no-verify
+echo "✅ Release tag $NEXT_RELEASE_VERSION created and pushed to $REMOTE."