From b78e0d15a50ee93ea730a5f0000ae4a8126aa90c Mon Sep 17 00:00:00 2001
From: Marc Wrobel <marc.wrobel@gmail.com>
Date: Fri, 16 Dec 2022 22:34:24 +0100
Subject: [PATCH] First version

---
 ...reate-json-files.rb => generate-api-v0.rb} |  0
 _plugins/generate-api-v1.rb                   | 89 +++++++++++++++++++
 2 files changed, 89 insertions(+)
 rename _plugins/{create-json-files.rb => generate-api-v0.rb} (100%)
 create mode 100755 _plugins/generate-api-v1.rb

diff --git a/_plugins/create-json-files.rb b/_plugins/generate-api-v0.rb
similarity index 100%
rename from _plugins/create-json-files.rb
rename to _plugins/generate-api-v0.rb
diff --git a/_plugins/generate-api-v1.rb b/_plugins/generate-api-v1.rb
new file mode 100755
index 00000000000..2f93923af10
--- /dev/null
+++ b/_plugins/generate-api-v1.rb
@@ -0,0 +1,89 @@
+#!/usr/bin/env ruby
+
+# This script creates API files for version 1 of the endoflife.date API.
+#
+# There are three kind of generated files :
+# - all.json: contains the list of all the product names.
+# - <product>.json: contains a given product data ()including releases data).
+# - <product>/<release>.json: contains a given product release data.
+
+require 'fileutils'
+require 'json'
+require 'yaml'
+require 'date'
+
+module ApiV1
+
+  # This API path
+  DIR = 'api/v1'
+
+  # Returns the path of a file inside the API namespace.
+  def self.file(name, *args)
+    File.join(DIR, name, *args)
+  end
+
+  # Holds information about a product.
+  Product = Class.new do
+    attr_accessor :data
+
+    # Initializes the product with the given product's markdown file.
+    # The markdown file is expected to contain a YAML front-matter with the appropriate properties.
+    #
+    # Copying the data makes it easier to process it.
+    def initialize(data)
+      @data = Hash.new
+      # The product name is derived from the product's permalink (ex. /debian => debian).
+      @data["name"] = data['permalink'][1..data['permalink'].length]
+      @data["title"] = data['title']
+      @data["category"] = data['category']
+      @data["iconSlug"] = data['iconSlug']
+      @data["permalink"] = data['permalink']
+      @data["versionCommand"] = data['versionCommand']
+      @data["auto"] = data.has_key? 'auto'
+      @data["releasePolicyLink"] = data['releasePolicyLink']
+      @data["releases"] = data['releases'].map do |release|
+        release_data = Hash.new
+        release_data["name"] = release['releaseCycle']
+        release_data["codename"] = release['codename']
+        release_data["releaseDate"] = release['releaseDate']
+        release_data["support"] = release['support']
+        release_data["eol"] = release['eol']
+        release_data["discontinued"] = release['discontinued']
+        release_data["lts"] = release['lts'] || false # lts is optional, make sure it always has a value
+        release_data["latest"] = release['latest']
+        release_data["latestReleaseDate"] = release['latestReleaseDate']
+        release_data
+      end
+    end
+
+    def name
+      data["name"]
+    end
+  end
+end
+
+product_names = []
+FileUtils.mkdir_p(ApiV1::file('.'))
+
+Dir['products/*.md'].each do |file|
+  # Load and prepare data
+  raw_data = YAML.safe_load(File.open(file), permitted_classes: [Date])
+  product = ApiV1::Product.new(raw_data)
+  product_names.append(product.name)
+
+  # Write /<product>.json
+  product_file = ApiV1::file("#{product.name}.json")
+  File.open(product_file, 'w') { |f| f.puts product.data.to_json }
+
+  # Write all /<product>/<release>.json
+  FileUtils.mkdir_p(ApiV1::file(product.name))
+  product.data["releases"].each do |release|
+    # Any / characters in the name are replaced with - to avoid file errors.
+    release_file = ApiV1::file(product.name, "#{release['name'].to_s.tr('/', '-')}.json")
+    File.open(release_file, 'w') { |f| f.puts release.to_json }
+  end
+end
+
+# Write /all.json
+all_products_file = ApiV1::file('all.json')
+File.open(all_products_file, 'w') { |f| f.puts product_names.sort.to_json }