From 0b383f6d65da9fb79e24c3d0507f3a3975a256ba Mon Sep 17 00:00:00 2001
From: Matthew John Cheetham <mjcheetham@outlook.com>
Date: Thu, 23 Jul 2020 15:54:20 +0100
Subject: [PATCH] homebrew: add workflow to auto update casks

Add a GitHub workflow that is triggered on creation and publish of a
release on GitHub, to update the `scalar` and `scalar-azrepos` Casks on
the microsoft/git Homebrew Tap.
---
 .github/workflows/homebrew-release.yml | 40 ++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 .github/workflows/homebrew-release.yml

diff --git a/.github/workflows/homebrew-release.yml b/.github/workflows/homebrew-release.yml
new file mode 100644
index 0000000000..c66a24006c
--- /dev/null
+++ b/.github/workflows/homebrew-release.yml
@@ -0,0 +1,40 @@
+name: Update Homebrew Tap
+on:
+  release:
+    types: [released]
+
+jobs:
+  release:
+    runs-on: ubuntu-latest
+    steps:
+    - id: version
+      name: Compute version number
+      run: |
+        echo "::set-output name=result::$(echo $GITHUB_REF | sed -e "s/^refs\/tags\/v//")"
+    - id: hash
+      name: Compute release asset hash
+      uses: mjcheetham/asset-hash@v1
+      with:
+        asset: Installers_macOS_Release.zip
+        hash: sha256
+        token: ${{ secrets.GITHUB_TOKEN }}
+    - name: Update scalar Cask
+      uses: mjcheetham/update-homebrew@v1.1
+      with:
+        token: ${{ secrets.HOMEBREW_TOKEN }}
+        tap: microsoft/git
+        name: scalar
+        type: cask
+        version: ${{ steps.version.outputs.result }}
+        sha256: ${{ steps.hash.outputs.result }}
+        alwaysUsePullRequest: true
+    - name: Update scalar-azrepos Cask
+      uses: mjcheetham/update-homebrew@v1.1
+      with:
+        token: ${{ secrets.HOMEBREW_TOKEN }}
+        tap: microsoft/git
+        name: scalar-azrepos
+        type: cask
+        version: ${{ steps.version.outputs.result }}
+        sha256: ${{ steps.hash.outputs.result }}
+        alwaysUsePullRequest: true