ci: Add change set checker workflow

.github/workflows/check-changeset.yml

@@ -0,0 +1,167 @@
+# -------------------------------------------------------------------------------------
+#
+# Copyright (c) 2025, WSO2 LLC. (https://www.wso2.com).
+#
+# WSO2 LLC. licenses this file to you under the Apache License,
+# Version 2.0 (the "License"); you may not use this file except
+# in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+# --------------------------------------------------------------------------------------
+
+# This workflow will check if a submitted PR has changesets.
+
+name: 🦋 Check for Changeset
+
+on:
+    workflow_run:
+        workflows: ["📩 Receive PR"]
+        types:
+            - completed
+
+env:
+    GH_TOKEN: ${{ secrets.ASGARDEO_GITHUB_BOT_TOKEN }}
+    IS_RELEASE_MODE: false
+
+jobs:
+    check-changeset:
+        runs-on: ubuntu-latest
+        if: >
+            github.event.workflow_run.event == 'pull_request' &&
+            github.event.workflow_run.conclusion == 'success'
+        steps:
+            - name: 📥 Download PR Number Artifact
+              uses: actions/download-artifact@v4
+              with:
+                name: pr-number
+                github-token: ${{ env.GH_TOKEN }}
+                repository: ${{ github.repository }}
+                run-id: ${{ github.event.workflow_run.id }}
+
+            - name: 📝 Display PR Number
+              run: cat ./PR_NUMBER
+
+            - name: 💬 Remove Existing Changeset Comment
+              uses: actions/github-script@v7
+              with:
+                github-token: ${{ env.GH_TOKEN }}
+                script: |
+                  const fs = require('fs');
+                  const PR_NUMBER = Number(fs.readFileSync('./PR_NUMBER', 'utf8').trim());
+                  const REPO_OWNER = context.repo.owner;
+                  const REPO_NAME = context.repo.repo;
+
+                  const comments = await github.rest.issues.listComments({
+                    owner: REPO_OWNER,
+                    repo: REPO_NAME,
+                    issue_number: PR_NUMBER,
+                  });
+
+                  console.log("COMMENTS_URL: https://api.github.com/repos/" + REPO_NAME + "/issues/" + PR_NUMBER + "/comments");
+
+                  for (const comment of comments.data) {
+                    console.log("COMMENT_OWNER: " + comment.user.login);
+
+                    if (
+                      comment.body.includes("🦋 Changeset detected") ||
+                      comment.body.includes("⚠️ No Changeset found") ||
+                      comment.body.includes("❌ Invalid Changeset detected")
+                    ) {
+                      console.log("COMMENT_ID_TO_DELETE: " + comment.id);
+
+                      await github.rest.issues.deleteComment({
+                        owner: REPO_OWNER,
+                        repo: REPO_NAME,
+                        comment_id: comment.id,
+                      });
+                    }
+                  }
+
+            - name: 💬 Add Changeset Comment
+              uses: actions/github-script@v7
+              with:
+                github-token: ${{ env.GH_TOKEN }}
+                script: |
+                  const fs = require('fs');
+                  const PR_NUMBER = Number(fs.readFileSync('./PR_NUMBER', 'utf8').trim());
+                  const REPO_OWNER = context.repo.owner;
+                  const REPO_NAME = context.repo.repo;
+                  const IS_RELEASE_MODE = process.env.IS_RELEASE_MODE === 'true';
+
+                  const files = await github.rest.pulls.listFiles({
+                    owner: REPO_OWNER,
+                    repo: REPO_NAME,
+                    pull_number: PR_NUMBER,
+                  });
+
+                  const CHANGED_FILES = files.data.map(file => file.filename);
+                  console.log("CHANGED_FILES_URL: https://api.github.com/repos/" + REPO_NAME + "/pulls/" + PR_NUMBER + "/files");
+                  console.log("CHANGED_FILES:", CHANGED_FILES);
+
+                  const CHANGESET_FILES = CHANGED_FILES.filter(filename => /^\.changeset\/.*\.md$/.test(filename));
+                  const CHANGES_COUNT = CHANGESET_FILES.length;
+                  console.log("CHANGES_COUNT:", CHANGES_COUNT);
+                  console.log("IS_RELEASE_MODE:", IS_RELEASE_MODE);
+
+                  let invalidChangesets = [];
+
+                  if (IS_RELEASE_MODE && CHANGES_COUNT > 0) {
+                    for (const changesetFile of CHANGESET_FILES) {
+                      try {
+                        const fileResponse = await github.rest.repos.getContent({
+                          owner: REPO_OWNER,
+                          repo: REPO_NAME,
+                          path: changesetFile,
+                          ref: `refs/pull/${PR_NUMBER}/head`
+                        });
+
+                        const content = Buffer.from(fileResponse.data.content, 'base64').toString('utf8');
+                        console.log("CHANGESET_CONTENT:", changesetFile, content);
+
+                        const frontmatterMatch = content.match(/^---\n([\s\S]*?)\n---/);
+                        if (frontmatterMatch) {
+                          const frontmatter = frontmatterMatch[1];
+                          if (frontmatter.includes(': major') || frontmatter.includes(': minor')) {
+                            invalidChangesets.push({
+                              file: changesetFile,
+                              type: frontmatter.includes(': major') ? 'major' : 'minor'
+                            });
+                          }
+                        }
+                      } catch (error) {
+                        console.log("Error reading changeset file:", changesetFile, error.message);
+                      }
+                    }
+                  }
+
+                  let COMMENT;
+                  if (CHANGES_COUNT > 0) {
+                    if (IS_RELEASE_MODE && invalidChangesets.length > 0) {
+                      console.log("Invalid changesets detected in release mode:", invalidChangesets);
+                      const invalidFiles = invalidChangesets.map(cs => `- \`${cs.file}\` (${cs.type})`).join('\n');
+                      COMMENT = `<h3>❌ Invalid Changeset detected</h3><p><b>🚀 WSO2 Identity Server release mode is currently activated!</b></p><p>The following changesets contain major/minor versions, but the master branch only allows patch releases:</p>\n${invalidFiles}\n<p><b>📋 Action Required:</b></p><ul><li>🔧 Update these changesets to use patch versions only, OR</li><li>🎯 Target the <code>next</code> branch for minor/major releases</li></ul><p>📚 Refer <a href="https://github.com/wso2/identity-apps/blob/master/docs/release/README.md">Release Documentation</a> to learn about our release strategy.</p>`;
+                    } else {
+                      console.log("Changeset detected");
+                      COMMENT = `<h3>🦋 Changeset detected</h3><p><b>The changes in this PR will be included in the next version bump.</b></p><p>Not sure what this means? <a href="https://github.com/changesets/changesets/blob/master/docs/adding-a-changeset.md">Click here to learn what changesets are</a>.</p>`;
+                    }
+                  } else {
+                    console.log("No changeset detected");
+                    COMMENT = `<h3>⚠️ No Changeset found</h3>Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go.</p><p><b>If these changes should result in a version bump, you need to add a changeset.</b></p><p>Refer <a href="https://github.com/wso2/identity-apps/blob/master/docs/release/README.md">Release Documentation</a> to learn how to add a changeset.`;
+                  }
+
+                  await github.rest.issues.createComment({
+                    owner: REPO_OWNER,
+                    repo: REPO_NAME,
+                    issue_number: PR_NUMBER,
+                    body: COMMENT,
+                  });
+

.github/workflows/receive-pr.yml

@@ -0,0 +1,46 @@
+# -------------------------------------------------------------------------------------
+#
+# Copyright (c) 2025, WSO2 LLC. (https://www.wso2.com).
+#
+# WSO2 LLC. licenses this file to you under the Apache License,
+# Version 2.0 (the "License"); you may not use this file except
+# in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+# --------------------------------------------------------------------------------------
+
+# This workflow will receive a PR and save the PR number for later use.
+
+name: 📩 Receive PR
+
+on:
+    pull_request:
+        branches: [main]
+
+jobs:
+    save-pr-information:
+        runs-on: ubuntu-latest
+        steps:
+            - name: ⬇️ Checkout
+              uses: actions/checkout@v4
+
+            - name: ℹ️ Display PR Information
+              run: echo "PR Number \#${{github.event.number}}"
+
+            - name: 💾 Save PR Number for Later Use
+              run: echo "${{github.event.number}}" > PR_NUMBER
+
+            - name: 📦 Upload PR Number as Artifact
+              uses: actions/upload-artifact@v4
+              with:
+                name: pr-number
+                path: PR_NUMBER