Add check release PR action (#66)

* Add action to check release PR

* revert changelog

.github/scripts/check_release.py

@@ -0,0 +1,110 @@
+import os
+import re
+import sys
+from datetime import datetime
+import yaml
+import semver
+
+logs = []
+
+
+# Check final commit message
+def check_commit_message():
+    commit_message = os.popen("git log -1 --pretty=%B").read().strip()
+    if commit_message.lower() != "prepare for release":
+        logs.append(
+            f"❌ Error: Last commit message is not 'prepare for release'. Found: `{commit_message}`"
+        )
+    else:
+        logs.append(f"✅ Pass: Last commit message is `prepare for release`.")
+
+
+# Validate changelog
+def check_changelog():
+    with open("CHANGELOG", "r") as f:
+        first_line = f.readline().strip()
+        match = re.match(r"^(\S+) (\d+\.\d+\.\d+) \((\d{4}-\d{2}-\d{2})\)$", first_line)
+        if not match:
+            logs.append(
+                f"❌ Error: First line of changelog is not in the correct format. Found: `{first_line}`"
+            )
+        else:
+            logs.append(f"✅ Pass: First line of changelog is in the correct format.")
+
+        package_name, new_version, date_str = match.groups()
+        new_date = datetime.strptime(date_str, "%Y-%m-%d").date()
+        today = datetime.today().date()
+
+        if new_date < today:
+            logs.append(
+                f"❌ Error: Changelog date ({new_date}) is before today ({today})."
+            )
+        else:
+            logs.append(
+                f"✅ Pass: Changelog date ({new_date}) is today ({today}) or later."
+            )
+
+    return package_name, new_version
+
+
+# Validate dbt_project.yml
+def check_dbt_project(file_path, new_version):
+    with open(f"{file_path}", "r") as f:
+        dbt_project = yaml.safe_load(f)
+
+    if "version" not in dbt_project:
+        logs.append(f"❌ Error: 'version' not found in {file_path}")
+
+    dbt_version = dbt_project["version"]
+    if dbt_version != new_version:
+        logs.append(
+            f"❌ Error: Version in {file_path} (`{dbt_version}`) does not match version in changelog (`{new_version}`)."
+        )
+    else:
+        logs.append(
+            f"✅ Pass: Version in {file_path} (`{dbt_version}`) matches version in changelog (`{new_version}`)."
+        )
+
+
+# Check semver
+def check_semver(new_version):
+    with open("CHANGELOG", "r") as f:
+        lines = f.readlines()
+        old_versions = []
+        for line in lines:
+            match = re.match(r"^(\S+) (\d+\.\d+\.\d+) \((\d{4}-\d{2}-\d{2})\)$", line)
+            if match:
+                _, old_version, _ = match.groups()
+                old_versions.append(old_version)
+
+    if len(old_versions) < 2:
+        logs.append(
+            "⚠️ Warning: Not enough versions found in changelog to perform semver comparison"
+        )
+        return
+
+    next_newest_version = old_versions[1]
+    if semver.compare(new_version, next_newest_version) <= 0:
+        logs.append(
+            f"❌ Error: New version (`{new_version}`) is not greater than the next newest version (`{next_newest_version}`)"
+        )
+    else:
+        logs.append(
+            f"✅ Pass: New version (`{new_version}`) is greater than the next newest version (`{next_newest_version}`)"
+        )
+
+
+if __name__ == "__main__":
+    check_commit_message()
+    package_name, new_version = check_changelog()
+    if new_version:
+        check_dbt_project("dbt_project.yml", new_version)
+        check_dbt_project("integration_tests/dbt_project.yml", new_version)
+        check_semver(new_version)
+    if any("❌" in s for s in logs):
+        print("\n".join(logs))
+        sys.exit(1)
+    else:
+        print("All checks passed successfully!")
+        print("")
+        print("\n".join(logs))

.github/workflows/release-pr-checks.yml

@@ -0,0 +1,59 @@
+name: Release PR Checks
+
+on:
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  check-release:
+    if: startsWith(github.head_ref, 'release')
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: '3.x'
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install pyyaml semver
+
+      - name: Run release checks
+        run: |
+          python .github/scripts/check_release.py > errors.txt
+
+      - name: Post PR comment on failure
+        if: failure()
+        uses: actions/github-script@v6
+        with:
+          script: |
+            const fs = require('fs');
+            const errors = fs.readFileSync('errors.txt', 'utf8');
+            github.rest.issues.createComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number,
+              body: `### Release PR Checks Failed\n\n${errors}`
+            })
+
+      - name: Post PR comment on success
+        if: success()
+        uses: actions/github-script@v6
+        with:
+          script: |
+            const fs = require('fs');
+            const errors = fs.readFileSync('errors.txt', 'utf8');
+            github.rest.issues.createComment({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number,
+              body: `### Release PR Checks Passed\n\n${errors}`
+            })