From 28df14b7347eeaff1c06eb9b5b2b1b1102ce3f9a Mon Sep 17 00:00:00 2001
From: brecert <me@bree.dev>
Date: Fri, 10 Sep 2021 14:48:48 -0400
Subject: [PATCH] Add pull request preview actions

---
 .github/workflows/preview_cleanup.yml      | 36 +++++++++++++++++
 .github/workflows/preview_pull_request.yml | 47 ++++++++++++++++++++++
 2 files changed, 83 insertions(+)
 create mode 100644 .github/workflows/preview_cleanup.yml
 create mode 100644 .github/workflows/preview_pull_request.yml

diff --git a/.github/workflows/preview_cleanup.yml b/.github/workflows/preview_cleanup.yml
new file mode 100644
index 00000000..18ac1de2
--- /dev/null
+++ b/.github/workflows/preview_cleanup.yml
@@ -0,0 +1,36 @@
+name: Clean Preview
+
+#! Safety:
+#! this workflow should not execute any code at all
+#! see githubs docs on pull_request_target for more
+on:
+    pull_request_target:
+        types: [unlabeled]
+
+jobs:
+    clean:
+        runs-on: ubuntu-latest
+        if: github.event.label.name == 'use-preview'
+
+        steps:
+            - uses: actions/checkout@v2
+              with:
+                  ref: build-previews
+                  persist-credentials: false
+
+            - name: clean previews
+              run: 'rm -rf "./refs/pull/${{ github.event.pull_request.number }}"'
+
+            - name: publish cleaned previews
+              uses: JamesIves/github-pages-deploy-action@4.1.5
+              with:
+                  folder: .
+                  branch: build-previews
+
+            - name: send comment
+              uses: marocchino/sticky-pull-request-comment@v2
+              with:
+                  header: Preview environment
+                  message: |
+                      ## Preview environment
+                      There is no longer a preview enviroment for this pull request due to the `use-preview` label being removed
diff --git a/.github/workflows/preview_pull_request.yml b/.github/workflows/preview_pull_request.yml
new file mode 100644
index 00000000..8d35f838
--- /dev/null
+++ b/.github/workflows/preview_pull_request.yml
@@ -0,0 +1,47 @@
+name: Preview Pull Request
+
+on:
+    pull_request:
+        types: [synchronize, reopened, labeled]
+
+jobs:
+    build:
+        runs-on: ubuntu-latest
+        # make sure the pull request is labeled with 'use-preview'
+        if: github.event.label.name == 'use-preview' || contains(github.event.pull_request.labels.*.name, 'use-preview')
+
+        steps:
+            - uses: actions/checkout@v2
+              with:
+                  # Head commit of the pull request
+                  ref: ${{ github.event.pull_request.head.sha }}
+                  submodules: recursive
+
+            - name: Setup Node
+              uses: actions/setup-node@v2
+              with:
+                  node-version: 15
+                  cache: "yarn"
+
+            - run: yarn install
+            - run: yarn check
+
+            - name: build
+              run: yarn build
+
+            - name: publish preview
+              uses: JamesIves/github-pages-deploy-action@4.1.5
+              with:
+                  branch: build-previews
+                  folder: dist
+                  target-folder: ${{ github.ref }}
+
+            - name: send comment
+              uses: marocchino/sticky-pull-request-comment@v2
+              with:
+                  header: Preview environment
+                  message: |
+                      ## Preview environment
+                      https://${{ github.repository_owner }}.github.io/revite/${{ github.ref }}/index.html
+
+                      This link will remain active until the `use-preview` label is removed.