From 80d0314ca2ddabc3393697c21ccadc9879f28b17 Mon Sep 17 00:00:00 2001
From: Aaron Dodson <gonfunko@gmail.com>
Date: Mon, 12 Jul 2021 13:37:25 -0700
Subject: [PATCH] Added script and workflow to automatically update build
 artifact sizes in check_metadata.sh

---
 .github/workflows/update_metadata.yml | 39 +++++++++++++++++++++++++++
 tests/scripts/update_metadata.sh      | 31 +++++++++++++++++++++
 2 files changed, 70 insertions(+)
 create mode 100644 .github/workflows/update_metadata.yml
 create mode 100755 tests/scripts/update_metadata.sh

diff --git a/.github/workflows/update_metadata.yml b/.github/workflows/update_metadata.yml
new file mode 100644
index 000000000..5b5e401fa
--- /dev/null
+++ b/.github/workflows/update_metadata.yml
@@ -0,0 +1,39 @@
+# This workflow updates the check_metadata.sh script, which compares the current
+# size of build artifacts against their size in the previous version of Blockly.
+
+name: Update Metadata
+
+on: [workflow_dispatch]
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        node-version: [16.x]        
+
+    steps:
+    - name: Check Out Blockly
+      uses: actions/checkout@v2
+      with:
+        ref: 'develop'
+
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}        
+
+    - name: Update Metadata
+      run: source ./tests/scripts/update_metadata.sh
+
+    - name: Create Pull Request
+      uses: peter-evans/create-pull-request@9825ae65b1cb54b543b938503728b432a0176d29
+      with:
+        commit-message: Updated build artifact sizes in check_metadata.sh
+        delete-branch: true
+        title: Updated build artifact sizes in check_metadata.sh
+
+    - name: View Pull Request
+      run: echo "View Pull Request - ${{ steps.cpr.outputs.pull-request-url }}"
\ No newline at end of file
diff --git a/tests/scripts/update_metadata.sh b/tests/scripts/update_metadata.sh
new file mode 100755
index 000000000..cfd2f43d0
--- /dev/null
+++ b/tests/scripts/update_metadata.sh
@@ -0,0 +1,31 @@
+#!/bin/bash
+
+# Determines the size of generated files and updates check_metadata.sh to
+# reflect the new values.
+
+blockly_size=$(wc -c < "blockly_compressed.js")
+blocks_size=$(wc -c < "blocks_compressed.js")
+blockly_gz_size=$(wc -c < "blockly_compressed.js.gz")
+blocks_gz_size=$(wc -c < "blocks_compressed.js.gz")
+quarter=$(date "+Q%q %Y")
+version=$(npx -c 'echo "$npm_package_version"')
+
+replacement="# ${quarter}\t${version}\t${blockly_size}\n"
+replacement+="readonly BLOCKLY_SIZE_EXPECTED=${blockly_size}"
+sed -ri "s/readonly BLOCKLY_SIZE_EXPECTED=[0-9]+/${replacement}/g" \
+  tests/scripts/check_metadata.sh
+
+replacement="# ${quarter}\t${version}\t${blocks_size}\n"
+replacement+="readonly BLOCKS_SIZE_EXPECTED=${blocks_size}"
+sed -ri "s/readonly BLOCKS_SIZE_EXPECTED=[0-9]+/${replacement}/g" \
+  tests/scripts/check_metadata.sh
+
+replacement="# ${quarter}\t${version}\t${blockly_gz_size}\n"
+replacement+="readonly BLOCKLY_GZ_SIZE_EXPECTED=${blockly_gz_size}"
+sed -ri "s/readonly BLOCKLY_GZ_SIZE_EXPECTED=[0-9]+/${replacement}/g" \
+  tests/scripts/check_metadata.sh
+
+replacement="# ${quarter}\t${version}\t${blocks_gz_size}\n"
+replacement+="readonly BLOCKS_GZ_SIZE_EXPECTED=${blocks_gz_size}"
+sed -ri "s/readonly BLOCKS_GZ_SIZE_EXPECTED=[0-9]+/${replacement}/g" \
+  tests/scripts/check_metadata.sh
\ No newline at end of file