Build zip in GHA cron (#4593)

Author: paulb777

.github/workflows/cron.yml

@@ -0,0 +1,19 @@
+name: CRON
+
+on:
+  schedule:
+    # Run every day at 1am (PST) - cron uses UTC times
+    - cron:  '0 7 * * *'
+
+jobs:
+  zip:
+    needs: check
+    runs-on: macOS-latest
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up
+      run: |
+        bundle install
+        bundle exec pod --version
+    - name: ZipBuildingTest
+      run: ./scripts/build_zip.sh

ZipBuilder/Sources/ZipBuilder/CocoaPodUtils.swift

@@ -328,13 +328,16 @@ enum CocoaPodUtils {
       podfile += "\n"
     }
 
-    // If we're using local pods, explicitly add Google* podspecs if they exist and there are no
+    // If we're using local pods, explicitly add FirebaseInstanceID, FirebaseInstallations,
+    // and any Google* podspecs if they exist and there are no
     // explicit versions in the Podfile. Note there are versions for local podspecs if we're doing
     // the secondary install for module map building.
     if !versionsSpecified, let localURL = LaunchArgs.shared.localPodspecPath {
       let podspecs = try! FileManager.default.contentsOfDirectory(atPath: localURL.path)
       for podspec in podspecs {
-        if podspec.starts(with: "Google"), podspec.hasSuffix(".podspec") {
+        if (podspec == "FirebaseInstanceID.podspec" ||
+          podspec == "FirebaseInstallations.podspec") ||
+          podspec.starts(with: "Google"), podspec.hasSuffix(".podspec") {
           let podName = podspec.replacingOccurrences(of: ".podspec", with: "")
           podfile += "  pod '\(podName)', :path => '\(localURL.path)/\(podspec)'\n"
         }

scripts/build_zip.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+# Copyright 2020 Google
+# 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
+#      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.
+
+set -x
+REPO=`pwd`
+cd ZipBuilder
+swift run ReleasePackager -keepBuildArtifacts true -updatePodRepo true \
+  -templateDir "${REPO}"/ZipBuilder/Template -localPodspecPath "${REPO}"