chore(workflows): run changelog check in CI for every public package

.github/actions/check-changelog/action.yml

@@ -4,6 +4,9 @@ inputs:
   pr-number:
     required: true
     description: PR number used as the changelog filename
+  package-path:
+    required: false
+    description: The base path of the package to check for a changelog. If not provided, it will check all packages.
 runs:
   using: 'composite'
   steps:
@@ -12,4 +15,5 @@ runs:
       run: .github/actions/check-changelog/entrypoint.sh
       env:
         PR_NUMBER: ${{ inputs.pr-number }}
+        PACKAGE_PATH: ${{ inputs.package-path }}
 

.github/actions/check-changelog/entrypoint.sh

@@ -3,17 +3,32 @@
 # Exit on error
 set -e
 
-# The PR number provided as input
+# The PR number and package path provided as input
 PR_NUMBER="${PR_NUMBER}"
+PACKAGE_PATH="${PACKAGE_PATH}"
 
-# Search for the changelog file across all packages
-changelog_files=$(find packages/*/changelogs/upcoming/ -type f -name "${PR_NUMBER}.md")
+# Search for the changelog file
+if [ -n "$PACKAGE_PATH" ]; then
+  # Check specific package
+  changelog_files=$(find "${PACKAGE_PATH}/changelogs/upcoming/" -type f -name "${PR_NUMBER}.md" 2>/dev/null || true)
+  package_name=$(basename "$PACKAGE_PATH")
 
-# If no changelog file is found, fail the step with an error message
-if [ -z "$changelog_files" ]; then
-  echo "❌ Changelog file for PR #${PR_NUMBER} is missing."
-  echo "You need to add a changelog to this PR before it can be merged. See https://github.com/elastic/eui/blob/main/wiki/contributing-to-eui/documenting/changelogs.md."
-  exit 1
+  if [ -z "$changelog_files" ]; then
+    echo "❌ Changelog file for PR #${PR_NUMBER} is missing in package '${package_name}'."
+    echo "You need to add a changelog to this PR before it can be merged. See https://github.com/elastic/eui/blob/main/wiki/contributing-to-eui/documenting/changelogs.md"
+    exit 1
+  else
+    echo "✅ Changelog file for PR #${PR_NUMBER} found in package '${package_name}': $changelog_files"
+  fi
 else
-  echo "✅ Changelog file for PR #${PR_NUMBER} found: $changelog_files"
+  # Search for the changelog file across all packages
+  changelog_files=$(find packages/*/changelogs/upcoming/ -type f -name "${PR_NUMBER}.md")
+
+  if [ -z "$changelog_files" ]; then
+    echo "❌ Changelog file for PR #${PR_NUMBER} is missing."
+    echo "You need to add a changelog to this PR before it can be merged. See https://github.com/elastic/eui/blob/main/wiki/contributing-to-eui/documenting/changelogs.md"
+    exit 1
+  else
+    echo "✅ Changelog file for PR #${PR_NUMBER} found: $changelog_files"
+  fi
 fi

.github/actions/detect-package-changes/action.yml

@@ -0,0 +1,13 @@
+name: Detect package changes
+description: 'Detects which public packages have changed based on git diff'
+outputs:
+  changed-packages:
+    description: 'A JSON array of changed public package names'
+    value: ${{ steps.changes.outputs.changed-packages }}
+runs:
+  using: 'composite'
+  steps:
+    - name: Detect package changes
+      id: changes
+      shell: bash
+      run: ${{ github.action_path }}/entrypoint.sh

.github/actions/detect-package-changes/entrypoint.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# Exit on error
+set -e
+
+# Get the list of changed files
+changed_files=$(git diff --name-only origin/main...HEAD)
+
+# Find all public packages and check for changes
+public_packages=()
+for dir in packages/*/; do
+  if [ -f "${dir}package.json" ] && ! grep -q '"private": true' "${dir}package.json"; then
+    package_name=$(basename "$dir")
+    if echo "$changed_files" | grep -q "^packages/$package_name/"; then
+      public_packages+=("\"$package_name\"")
+    fi
+  fi
+done
+
+# Output a JSON array of changed package names
+if [ ${#public_packages[@]} -gt 0 ]; then
+  changed_list=$(IFS=,; echo "[${public_packages[*]}]")
+  echo "changed-packages=$changed_list" >> $GITHUB_OUTPUT
+else
+  echo "changed-packages=[]" >> $GITHUB_OUTPUT
+fi

.github/workflows/changelog.yml

@@ -5,12 +5,32 @@ on:
     branches: [main]
 
 jobs:
-  # Enforces the update of a changelog file on every pull request
+  # Check for changes in all public packages, needed in the `changelog` job
+  detect-changes:
+    runs-on: ubuntu-latest
+    outputs:
+      changed-packages: ${{ steps.changes.outputs.changed-packages }}
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+      - name: Detect package changes
+        id: changes
+        uses: ./.github/actions/detect-package-changes
+
+  # Enforces the update of a changelog file on every pull request for all public packages
+  # unless the PR contains the `skip-changelog` label
   changelog:
-    if: ${{ !contains(github.event.pull_request.labels.*.name, 'skip-changelog') }}
+    needs: detect-changes
+    if: ${{ !contains(github.event.pull_request.labels.*.name, 'skip-changelog') && fromJson(needs.detect-changes.outputs.changed-packages)[0] }}
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        package: ${{ fromJson(needs.detect-changes.outputs.changed-packages) }}
     steps:
-    - uses: actions/checkout@v2
-    - uses: ./.github/actions/check-changelog
-      with:
-        pr-number: ${{ github.event.pull_request.number }}
+      - uses: actions/checkout@v2
+      - name: Check changelog for ${{ matrix.package }}
+        uses: ./.github/actions/check-changelog
+        with:
+          pr-number: ${{ github.event.pull_request.number }}
+          package-path: packages/${{ matrix.package }}