Add workflow for auto updating submodules and submitting a PR

.github/scripts/google-skywater-pdk-roll.py

@@ -0,0 +1,133 @@
+#!/usr/bin/env python3
+# Copyright 2020 SkyWater PDK Authors
+#
+# Licensed 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
+#
+#     https://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.
+#
+# SPDX-License-Identifier: Apache-2.0
+
+# Originally written by Tim 'mithro' Ansell
+# Slightly modified for Github Actions use by Amr Gouhar (agorararmard)
+
+import datetime
+import os
+import pprint
+import subprocess
+import sys
+import tempfile
+import textwrap
+import argparse
+
+now = datetime.datetime.utcnow()
+now = now.replace(microsecond=0)
+
+subprocess.check_call(['git', 'reset', '--hard'])
+subprocess.check_call(['git', 'submodule', 'update', '--init'])
+
+parser = argparse.ArgumentParser(
+        description="Update submodules and create a commit")
+parser.add_argument('--libraries_dir', '-l', action='store', default='libraries',
+                help="Libraries Directory")
+
+args = parser.parse_args()
+
+libdir = os.path.abspath(args.libraries_dir)
+
+changes = []
+
+for lib in sorted(os.listdir(libdir)):
+    ldir = os.path.join(libdir, lib)
+    for v in sorted(os.listdir(ldir)):
+        submod = os.path.join(ldir, v)
+
+        if v == 'latest':
+            branch = 'master'
+        else:
+            assert v.startswith('v'), v
+            branch = 'branch-'+v[1:]
+
+        gitdir = os.path.join(submod, '.git')
+        assert os.path.exists(gitdir), gitdir
+
+        print('\n\n')
+        print(v + " " + submod + " "+ branch)
+        print('\n')
+        subprocess.call(      ['git', 'branch', '-D', branch], cwd=submod)
+        subprocess.call(      ['git', 'branch', '-D', 'origin/'+branch], cwd=submod)
+        # Need unshallow and tags so git-describe works
+        subprocess.check_call(['git', 'remote', '-v'], cwd=submod)
+        subprocess.call(      ['git', 'fetch',              'origin', '--prune', '--prune-tags'], cwd=submod)
+        subprocess.call(      ['git', 'fetch', '--progress', 'origin', '--unshallow'], cwd=submod)
+        subprocess.check_call(['git', 'fetch', '--progress', 'origin', '--tags'], cwd=submod)
+        subprocess.check_call(['git', 'fetch', '--progress', 'origin', '+{0}:remotes/origin/{0}'.format(branch)], cwd=submod)
+
+        old_version = subprocess.check_output(['git', 'describe'], cwd=submod).decode('utf-8').strip()
+
+        subprocess.check_call(['git', 'status'], cwd=submod)
+        subprocess.check_call(['git', 'branch', '-av'], cwd=submod)
+        subprocess.check_call(['git', 'reset', '--hard', 'origin/'+branch], cwd=submod)
+
+        new_version = subprocess.check_output(['git', 'describe'], cwd=submod).decode('utf-8').strip()
+        print(old_version + '-->' + new_version)
+
+        log = subprocess.check_output(['git', 'log', '--graph', '--pretty=short', '--decorate=short', '--decorate-refs=remotes/origin', '--shortstat', old_version+'..'+new_version], cwd=submod).decode('utf-8')
+
+        print('\n\n\n\n')
+        print(lib + ' ' + v)
+        print('\n')
+        print('-'*10)
+        print('-'*10)
+        print('\n')
+        print(subprocess.check_output(['git', 'log', '--pretty=short', '--decorate=short', '--decorate-refs=remotes/origin', old_version+'..'+new_version], cwd=submod).decode('utf-8'))
+        print('\n')
+        print('-'*10)
+        print('\n')
+        print(log)
+        print('-'*10)
+
+        changes.append((lib, v, old_version, new_version))
+        subprocess.check_call(['git', 'add', v], cwd=ldir)
+
+
+def get_submod_info():
+    output = subprocess.check_output(['git', 'submodule', 'summary']).decode('utf-8')
+    output = output.replace('\n\n\n', '\n\n')
+    output = output.strip()
+    return textwrap.indent(output, ' ')
+
+print('\n\n')
+print('-'*75)
+subprocess.check_call(['git', 'status'])
+print('-'*75)
+pprint.pprint(changes)
+print('-'*75)
+
+output = ['Updating submodules on {} UTC'.format(now), '']
+
+for lib, ver, ov, nv in changes:
+    if ov == nv:
+        continue
+    output.append('''\
+ - Updating [`{lib}` {ver}](https://github.com/google/skywater-pdk-libs-{lib}/compare/{ov}..{nv}) to {nv}'''.format(
+     lib=lib, ver=ver, ov=ov, nv=nv))
+
+output.append('')
+output.append(get_submod_info())
+
+print('\n'.join(output))
+
+
+with tempfile.NamedTemporaryFile('w') as f:
+    f.write('\n'.join(output))
+    f.flush()
+    subprocess.check_call(['git', 'commit', '--signoff', '--file={}'.format(f.name)])
+

.github/workflows/auto-pr-submodules.yml

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+name: Update Submodules and Submit a PR
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - master
+    schedule:
+      - cron:  '0 0 * * *'
+
+jobs:
+  createPullRequest:
+    if: contains(github.ref, 'master')
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Update Submodules to Remote Latest
+        run: python3 .github/scripts/google-skywater-pdk-roll.py -l libraries
+
+      - name: Export Body
+        run: echo "BODY=$(git log -1 --pretty=%B)" >> $GITHUB_ENV
+
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v3
+        with:
+          token: ${{ github.token }}
+          title: 'Update Submodules to Remote Latest'
+          branch: create-pull-request/submodules-auto-update
+          base: master
+          delete-branch: true
+          body: ${{ env.BODY }}
+          labels: update submodules, automated pr
+