feat: rewrite generation as a Homebrew command based on the API

.github/workflows/ruby.yml

@@ -11,25 +11,35 @@ jobs:
     if: github.repository_owner == 'Homebrew' || !github.event.schedule
     runs-on: ubuntu-latest
     steps:
+    - name: Set up Homebrew
+      id: set-up-homebrew
+      uses: Homebrew/actions/setup-homebrew@master
+      with:
+        core: false
+        cask: false
+        test-bot: true
+
     - uses: actions/checkout@v4
       with:
         persist-credentials: false
-    - name: Set up Ruby 3
-      uses: ruby/setup-ruby@v1
-      with:
-        bundler-cache: true
+
+    - name: Install Homebrew Bundler RubyGems
+      if: steps.cache.outputs.cache-hit != 'true'
+      run: brew install-bundler-gems
+
     - name: Configure git
       run: |
         git config user.email '[email protected]'
         git config user.name 'TANIGUCHI Masaya'
-    - name: Convert and commit
-      run: |
-        git submodule update --init --remote
-        bundle exec ruby cask2formula convert
-        bundle exec ruby cask2formula commit
-    - name: Clean Formula directory
-      run: |
-        comm -23 --nocheck-order <(ls -1 Formula) <(basename -a homebrew-cask-fonts/Casks/font/*/*) | xargs -I{} sh -c 'git rm ./Formula/{} && git commit -m "Remove {}"'
+
+    - name: Generate formulae
+      if: github.event_name == 'pull_request'
+      run: brew generate-linux-fonts --verbose --debug --write-only
+
+    - name: Generate and commit formulae
+      if: github.event_name != 'pull_request'
+      run: brew generate-linux-fonts --verbose --debug
+
     - name: Publish to GitHub
       if: github.event_name != 'pull_request'
       env:

CONTRIBUTING.md

@@ -12,35 +12,35 @@ Making a Font Cask is easy: a Cask is a small Ruby file.
 
 Here’s a Cask for the font [Inconsolata](http://levien.com/type/myfonts/inconsolata.html) as an example:
 ```ruby
-cask 'font-inconsolata' do
+cask "font-inconsolata" do
   version :latest
   sha256 :no_check
 
-  url 'http://levien.com/type/myfonts/Inconsolata.otf'
-  name 'Inconsolata'
-  homepage 'http://levien.com/type/myfonts/inconsolata.html'
+  url "http://levien.com/type/myfonts/Inconsolata.otf"
+  name "Inconsolata"
+  homepage "http://levien.com/type/myfonts/inconsolata.html"
 
-  font 'Inconsolata.otf'
+  font "Inconsolata.otf"
 end
 ```
 
 Here’s a more complex Cask for the font [Fantasque Sans Mono](https://github.com/belluzj/fantasque-sans). Note that you may repeat the `font` stanza as many times as you need to, if multiple files must be installed from the same package:
 
 ```ruby
-cask 'font-fantasque-sans-mono' do
-  version '1.7.1'
-  sha256 '6bb3b24413b78eed19ffa9bd233ae555982e3b185bd303e57dd1e05bebf17352'
+cask "font-fantasque-sans-mono" do
+  version "1.7.1"
+  sha256 "6bb3b24413b78eed19ffa9bd233ae555982e3b185bd303e57dd1e05bebf17352"
 
   url "https://github.com/belluzj/fantasque-sans/releases/download/v#{version}/FantasqueSansMono.zip"
-  appcast 'https://github.com/belluzj/fantasque-sans/releases.atom',
-          checkpoint: '8085c3dff43a9dbf3201ca790c57800a089d1b69fec91226a600c04d9c681e36'
-  name 'Fantasque Sans Mono'
-  homepage 'https://github.com/belluzj/fantasque-sans'
-
-  font 'OTF/FantasqueSansMono-Bold.otf'
-  font 'OTF/FantasqueSansMono-BoldItalic.otf'
-  font 'OTF/FantasqueSansMono-Italic.otf'
-  font 'OTF/FantasqueSansMono-Regular.otf'
+  appcast "https://github.com/belluzj/fantasque-sans/releases.atom",
+          checkpoint: "8085c3dff43a9dbf3201ca790c57800a089d1b69fec91226a600c04d9c681e36"
+  name "Fantasque Sans Mono"
+  homepage "https://github.com/belluzj/fantasque-sans"
+
+  font "OTF/FantasqueSansMono-Bold.otf"
+  font "OTF/FantasqueSansMono-BoldItalic.otf"
+  font "OTF/FantasqueSansMono-Italic.otf"
+  font "OTF/FantasqueSansMono-Regular.otf"
 end
 ```