Build and publish appcasts with GitHub Pages

Author: interstateone

.github/workflows/appcast.yml

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+name: Build and publish a new appcast file
+
+on:
+  workflow_dispatch:
+  release:
+
+jobs:
+  jekyll:
+    runs-on: ubuntu-16.04
+    steps:
+    - uses: actions/checkout@v2
+
+    - uses: actions/cache@v2
+      with:
+        path: vendor/bundle
+        key: ${{ runner.os }}-gems-v1.0-${{ hashFiles('AppCast/Gemfile') }}
+        restore-keys: |
+          ${{ runner.os }}-gems-
+
+    - uses: helaili/jekyll-action@v2
+      env:
+        JEKYLL_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        token: ${{ secrets.GITHUB_TOKEN }}
+        gem_src: 'AppCast'
+        jekyll_src: 'AppCast'
+        target_branch: 'gh-pages'

AppCast/.gitignore

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+_site
+.sass-cache
+.jekyll-metadata

AppCast/Gemfile

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+source "https://rubygems.org"
+
+# Hello! This is where you manage which Jekyll version is used to run.
+# When you want to use a different version, change it below, save the
+# file and run `bundle install`. Run Jekyll with `bundle exec`, like so:
+#
+#     bundle exec jekyll serve
+#
+# This will help ensure the proper Jekyll version is running.
+# Happy Jekylling!
+gem "jekyll", "~> 3.9.0"
+
+gem "jekyll-github-metadata", group: :jekyll_plugins
+
+# Windows does not include zoneinfo files, so bundle the tzinfo-data gem
+# and associated library.
+install_if -> { RUBY_PLATFORM =~ %r!mingw|mswin|java! } do
+  gem "tzinfo", "~> 1.2"
+  gem "tzinfo-data"
+end
+
+# Performance-booster for watching directories on Windows
+gem "wdm", "~> 0.1.0", :install_if => Gem.win_platform?
+
+# kramdown v2 ships without the gfm parser by default. If you're using
+# kramdown v1, comment out this line.
+gem "kramdown-parser-gfm"
+

AppCast/Gemfile.lock

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+GEM
+  remote: https://rubygems.org/
+  specs:
+    addressable (2.7.0)
+      public_suffix (>= 2.0.2, < 5.0)
+    colorator (1.1.0)
+    concurrent-ruby (1.1.7)
+    em-websocket (0.5.2)
+      eventmachine (>= 0.12.9)
+      http_parser.rb (~> 0.6.0)
+    eventmachine (1.2.7)
+    faraday (1.3.0)
+      faraday-net_http (~> 1.0)
+      multipart-post (>= 1.2, < 3)
+      ruby2_keywords
+    faraday-net_http (1.0.1)
+    ffi (1.14.2)
+    forwardable-extended (2.6.0)
+    http_parser.rb (0.6.0)
+    i18n (0.9.5)
+      concurrent-ruby (~> 1.0)
+    jekyll (3.9.0)
+      addressable (~> 2.4)
+      colorator (~> 1.0)
+      em-websocket (~> 0.5)
+      i18n (~> 0.7)
+      jekyll-sass-converter (~> 1.0)
+      jekyll-watch (~> 2.0)
+      kramdown (>= 1.17, < 3)
+      liquid (~> 4.0)
+      mercenary (~> 0.3.3)
+      pathutil (~> 0.9)
+      rouge (>= 1.7, < 4)
+      safe_yaml (~> 1.0)
+    jekyll-github-metadata (2.13.0)
+      jekyll (>= 3.4, < 5.0)
+      octokit (~> 4.0, != 4.4.0)
+    jekyll-sass-converter (1.5.2)
+      sass (~> 3.4)
+    jekyll-watch (2.2.1)
+      listen (~> 3.0)
+    kramdown (2.3.0)
+      rexml
+    kramdown-parser-gfm (1.1.0)
+      kramdown (~> 2.0)
+    liquid (4.0.3)
+    listen (3.4.1)
+      rb-fsevent (~> 0.10, >= 0.10.3)
+      rb-inotify (~> 0.9, >= 0.9.10)
+    mercenary (0.3.6)
+    multipart-post (2.1.1)
+    octokit (4.20.0)
+      faraday (>= 0.9)
+      sawyer (~> 0.8.0, >= 0.5.3)
+    pathutil (0.16.2)
+      forwardable-extended (~> 2.6)
+    public_suffix (4.0.6)
+    rb-fsevent (0.10.4)
+    rb-inotify (0.10.1)
+      ffi (~> 1.0)
+    rexml (3.2.4)
+    rouge (3.26.0)
+    ruby2_keywords (0.0.2)
+    safe_yaml (1.0.5)
+    sass (3.7.4)
+      sass-listen (~> 4.0.0)
+    sass-listen (4.0.0)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
+    sawyer (0.8.2)
+      addressable (>= 2.3.5)
+      faraday (> 0.8, < 2.0)
+    thread_safe (0.3.6)
+    tzinfo (1.2.9)
+      thread_safe (~> 0.1)
+    tzinfo-data (1.2020.6)
+      tzinfo (>= 1.0.0)
+    wdm (0.1.1)
+
+PLATFORMS
+  x86_64-darwin-20
+
+DEPENDENCIES
+  jekyll (~> 3.9.0)
+  jekyll-github-metadata
+  kramdown-parser-gfm
+  tzinfo (~> 1.2)
+  tzinfo-data
+  wdm (~> 0.1.0)
+
+BUNDLED WITH
+   2.2.5

AppCast/_config.yml

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+# Welcome to Jekyll!
+#
+# This config file is meant for settings that affect your whole blog, values
+# which you are expected to set up once and rarely edit after that. If you find
+# yourself editing this file very often, consider using Jekyll's data files
+# feature for the data you need to update frequently.
+#
+# For technical reasons, this file is *NOT* reloaded automatically when you use
+# 'bundle exec jekyll serve'. If you change this file, please restart the server process.
+
+# Site settings
+# These are used to personalize your new site. If you look in the HTML files,
+# you will see them accessed via {{ site.title }}, {{ site.email }}, and so on.
+# You can create any custom variable you would like, and they will be accessible
+# in the templates via {{ site.myvariable }}.
+title: Xcodes.app
+description: >- # this means to ignore newlines until "baseurl:"
+baseurl: "" # the subpath of your site, e.g. /blog
+url: "" # the base hostname & protocol for your site, e.g. http://example.com
+
+# Build settings
+markdown: kramdown
+plugins:
+  - "jekyll-github-metadata"
+
+# Exclude from processing.
+# The following items will not be processed, by default. Create a custom list
+# to override the default setting.
+# exclude:
+#   - Gemfile
+#   - Gemfile.lock
+#   - node_modules
+#   - vendor/bundle/
+#   - vendor/cache/
+#   - vendor/gems/
+#   - vendor/ruby/

AppCast/_includes/appcast.inc

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+<?xml version="1.0" encoding="utf-8"?>
+<rss version="2.0" xmlns:sparkle="http://www.andymatuschak.org/xml-namespaces/sparkle" xmlns:dc="http://purl.org/dc/elements/1.1/">
+    <channel>
+        <title>{{ site.github.project_title }}</title>
+        <description>Most recent changes with links to updates.</description>
+        <language>en</language>
+        {% for release in site.github.releases %}
+            {% unless release.draft %}
+                {% unless release.prerelease and page.release_only %}
+                    <item>
+                        <title>{{ release.name }}</title>
+                        <description><![CDATA[{{ release.body | markdownify }}]]></description>
+                        <pubDate>{{ release.published_at | date_to_rfc822 }}</pubDate>
+                        {% for asset in release.assets limit:1 %}
+                            {% assign build_nums = release.tag_name | replace_first:'v','' | replace_first:'b',',' | split:',' %}
+                            {% if build_nums.size == 2 %}
+                                {% assign version_number = build_nums[0] %}
+                                {% assign build_number = build_nums[1] %}
+
+                                <enclosure
+                                    url="{{ asset.browser_download_url }}"
+                                    sparkle:version="{{ build_number }}"
+                                    sparkle:shortVersionString="{{ version_number }}"
+                                    length="{{ asset.size }}"
+                                    type="application/octet-stream" />
+                            {% else %}
+                                {% assign version = release.tag_name | remove_first:'v' %}
+
+                                <enclosure
+                                    url="{{ asset.browser_download_url }}"
+                                    sparkle:version="{{ version }}"
+                                    length="{{ asset.size }}"
+                                    type="application/octet-stream" />
+                            {% endif %}
+                        {% endfor %}
+                    </item>
+                {% endunless %}
+            {% endunless %}
+        {% endfor %}
+    </channel>
+</rss>

AppCast/appcast.xml

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+---
+release_only: true
+---
+{%include appcast.inc %}

AppCast/appcast_pre.xml

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+---
+release_only: false
+---
+{%include appcast.inc %}