download/gitignore mima .jar files

Author: kares

.github/workflows/main.yml

@@ -18,6 +18,8 @@ jobs:
         with:
           ruby-version: ${{ matrix.ruby-version }}
           bundler-cache: true
+      - name: Download Mima jars
+        run: bundle exec rake download_jars
       - name: Run tests
         run: bundle exec rake specs
       - name: Run RuboCop

.gitignore

@@ -6,3 +6,4 @@ build.log
 pom*
 specs/repository/*
 example/dependencies.list
+lib/jars/mima/*.jar

Gemfile

@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-source 'https://rubygems.org'
+source 'https://gem.coop'
 
 gemspec
 

Rakefile

@@ -4,6 +4,7 @@ task default: [:specs]
 
 require 'bundler/gem_tasks'
 require 'rubocop/rake_task'
+require 'rake/clean'
 
 RuboCop::RakeTask.new
 
@@ -15,3 +16,47 @@ task :specs do
     require File.basename(f.sub(/.rb$/, ''))
   end
 end
+
+require_relative 'lib/jars/mima/version'
+
+MIMA_VERSION = Jars::Mima::MIMA_VERSION
+SLF4J_VERSION = Jars::Mima::SLF4J_VERSION
+MAVEN_CENTRAL = 'https://repo.maven.apache.org/maven2'
+MIMA_DIR = 'lib/jars/mima'
+
+MIMA_JARS = {
+  "slf4j-api-#{SLF4J_VERSION}.jar" =>
+    "#{MAVEN_CENTRAL}/org/slf4j/slf4j-api/#{SLF4J_VERSION}/slf4j-api-#{SLF4J_VERSION}.jar",
+  "slf4j-simple-#{SLF4J_VERSION}.jar" =>
+    "#{MAVEN_CENTRAL}/org/slf4j/slf4j-simple/#{SLF4J_VERSION}/slf4j-simple-#{SLF4J_VERSION}.jar",
+  "jcl-over-slf4j-#{SLF4J_VERSION}.jar" =>
+    "#{MAVEN_CENTRAL}/org/slf4j/jcl-over-slf4j/#{SLF4J_VERSION}/jcl-over-slf4j-#{SLF4J_VERSION}.jar",
+  "context-#{MIMA_VERSION}.jar" =>
+    "#{MAVEN_CENTRAL}/eu/maveniverse/maven/mima/context/#{MIMA_VERSION}/context-#{MIMA_VERSION}.jar",
+  "standalone-static-uber-#{MIMA_VERSION}.jar" =>
+    "#{MAVEN_CENTRAL}/eu/maveniverse/maven/mima/runtime/standalone-static-uber/#{MIMA_VERSION}/standalone-static-uber-#{MIMA_VERSION}.jar"
+}
+
+MIMA_JARS.each_key { |jar| CLEAN.include(File.join(MIMA_DIR, jar)) }
+
+desc 'download Mima (and dependent SLF4J) jars'
+task :download_jars do
+  require 'fileutils'
+  require 'open-uri'
+
+  FileUtils.mkdir_p(MIMA_DIR)
+
+  MIMA_JARS.each do |filename, url|
+    target = File.join(MIMA_DIR, filename)
+    if File.exist?(target)
+      puts "  exists: #{target}"
+      next
+    end
+
+    puts "  downloading #{filename}..."
+    URI.open(url) do |remote| # rubocop:disable Security/Open
+      File.open(target, 'wb') { |f| f.write(remote.read) }
+    end
+    puts "  saved: #{target}"
+  end
+end

lib/jars/mima.rb

@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+require 'jars/mima/version'
 require 'jars/gemspec_artifacts'
 
 module Jars
@@ -8,8 +9,6 @@ module Jars
   #
   # Mima wraps the Maven Resolver (Aether) API as a standalone library (no Maven process is spawned).
   module Mima
-    MIMA_VERSION = '2.4.42'
-    SLF4J_VERSION = '1.7.36'
 
     class << self
       @@jars_loaded = nil
@@ -19,7 +18,8 @@ class << self
       def ensure_jars_loaded
         return if @@jars_loaded
 
-        mima_dir = File.expand_path('mima', File.dirname(__FILE__)).freeze
+        mima_dir = File.expand_path('mima', File.dirname(__FILE__))
+
         load File.join(mima_dir, "slf4j-api-#{SLF4J_VERSION}.jar")
         load File.join(mima_dir, "slf4j-simple-#{SLF4J_VERSION}.jar")
         load File.join(mima_dir, "jcl-over-slf4j-#{SLF4J_VERSION}.jar")

lib/jars/mima/version.rb

@@ -0,0 +1,8 @@
+# frozen_string_literal: true
+
+module Jars
+  module Mima
+    MIMA_VERSION = '2.4.42'
+    SLF4J_VERSION = '1.7.36'
+  end
+end