Add workflow for bumping version

.github/workflows/bump-coder-cli.yaml

@@ -0,0 +1,31 @@
+name: bump_version
+on:
+  workflow_dispatch:
+    inputs:
+      version: 
+        default: ""
+        required: true
+        description: "unprefixed version number (ex: '1.14.2')"
+jobs:
+  coder-cli:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Configure git
+        run: |
+          git config user.name github-actions
+          git config user.email [email protected]
+      - name: Open PR to bump coder-cli version
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+            ./ci/scripts/gen-coder-cli-formula.sh ${{ github.event.inputs.version }}
+            git diff
+            git checkout -b bump-coder-cli-${{ github.event.inputs.version }}
+            git add coder-cli.rb
+            git commit -m "feat: bump coder-cli version to v${{ github.event.inputs.version }}"
+            git push --set-upstream origin bump-coder-cli-${{ github.event.inputs.version }}
+            gh pr create \
+              --title="bump coder-cli version to v${{ github.event.inputs.version }}" \
+              --body="" \
+              --reviewer cmoog

ci/scripts/gen-coder-cli-formula.sh

@@ -0,0 +1,29 @@
+#!/bin/bash
+
+set -eu
+
+cd "$(dirname "$0")"
+cd "$(git rev-parse --show-toplevel)"
+
+version="$1"
+
+sha() {
+  sha256sum | awk '{ print $1 }'
+}
+
+linux_url="https://github.com/cdr/coder-cli/releases/download/v$version/coder-cli-linux-amd64.tar.gz"
+macos_url="https://github.com/cdr/coder-cli/releases/download/v$version/coder-cli-darwin-amd64.zip"
+
+linux_sha="$(curl -sL "$linux_url" | sha)"
+macos_sha="$(curl -sL "$macos_url" | sha)"
+template=$(cat ./ci/templates/coder-cli.rb)
+
+template="${template//\{\{MACOS_SHA\}\}/$macos_sha}"
+template="${template//\{\{LINUX_SHA\}\}/$linux_sha}"
+
+template="${template//\{\{MACOS_URL\}\}/$macos_url}"
+template="${template//\{\{LINUX_URL\}\}/$linux_url}"
+
+template="${template//\{\{VERSION\}\}/$version}"
+
+echo "$template" > ./coder-cli.rb

ci/templates/coder-cli.rb

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+class CoderCli < Formula
+  desc "Command-line tool for the Coder remote development platform"
+  homepage "https://github.com/cdr/coder-cli"
+  version "{{VERSION}}"
+  bottle :unneeded
+
+  if OS.mac?
+    url "{{MACOS_URL}}"
+    sha256 "{{MACOS_SHA}}"
+  else
+    url "{{LINUX_URL}}"
+    sha256 "{{LINUX_SHA}}"
+  end
+
+  def install
+    bin.install "coder"
+  end
+  test do
+    system "#{bin}/coder", "--version"
+  end
+end