Add a bundle fund command

Manifest.txt

@@ -32,6 +32,7 @@ bundler/lib/bundler/cli/config.rb
 bundler/lib/bundler/cli/console.rb
 bundler/lib/bundler/cli/doctor.rb
 bundler/lib/bundler/cli/exec.rb
+bundler/lib/bundler/cli/fund.rb
 bundler/lib/bundler/cli/gem.rb
 bundler/lib/bundler/cli/info.rb
 bundler/lib/bundler/cli/init.rb

bundler/lib/bundler/cli.rb

@@ -439,6 +439,14 @@ def outdated(*gems)
       Outdated.new(options, gems).run
     end
 
+    desc "fund [OPTIONS]", "Lists information about gems seeking funding assistance"
+    method_option "group", :aliases => "-g", :type => :array, :banner =>
+      "Fetch funding information for a specific group"
+    def fund
+      require_relative "cli/fund"
+      Fund.new(options).run
+    end
+
     desc "cache [OPTIONS]", "Locks and then caches all of the gems into vendor/cache"
     method_option "all",  :type => :boolean,
                           :default => Bundler.feature_flag.cache_all?,

bundler/lib/bundler/cli/fund.rb

@@ -0,0 +1,36 @@
+# frozen_string_literal: true
+
+module Bundler
+  class CLI::Fund
+    attr_reader :options
+
+    def initialize(options)
+      @options = options
+    end
+
+    def run
+      Bundler.definition.validate_runtime!
+
+      groups = Array(options[:group]).map(&:to_sym)
+
+      deps = if groups.any?
+        Bundler.definition.dependencies_for(groups)
+      else
+        Bundler.definition.current_dependencies
+      end
+
+      fund_info = deps.each_with_object([]) do |dep, arr|
+        spec = Bundler.definition.specs[dep.name].first
+        if spec.metadata.key?("funding_uri")
+          arr << "* #{spec.name} (#{spec.version})\n  Funding: #{spec.metadata["funding_uri"]}"
+        end
+      end
+
+      if fund_info.empty?
+        Bundler.ui.info "None of the installed gems you directly depend on are looking for funding."
+      else
+        Bundler.ui.info fund_info.join("\n")
+      end
+    end
+  end
+end

bundler/lib/bundler/cli/info.rb

@@ -60,6 +60,7 @@ def print_gem_info(spec)
       gem_info << "\tHomepage: #{spec.homepage}\n" if spec.homepage
       gem_info << "\tDocumentation: #{metadata["documentation_uri"]}\n" if metadata.key?("documentation_uri")
       gem_info << "\tSource Code: #{metadata["source_code_uri"]}\n" if metadata.key?("source_code_uri")
+      gem_info << "\tFunding: #{metadata["funding_uri"]}\n" if metadata.key?("funding_uri")
       gem_info << "\tWiki: #{metadata["wiki_uri"]}\n" if metadata.key?("wiki_uri")
       gem_info << "\tChangelog: #{metadata["changelog_uri"]}\n" if metadata.key?("changelog_uri")
       gem_info << "\tBug Tracker: #{metadata["bug_tracker_uri"]}\n" if metadata.key?("bug_tracker_uri")

bundler/lib/bundler/definition.rb

@@ -233,6 +233,12 @@ def requested_specs
       end
     end
 
+    def requested_dependencies
+      groups = requested_groups
+      groups.map!(&:to_sym)
+      dependencies_for(groups)
+    end
+
     def current_dependencies
       dependencies.select do |d|
         d.should_include? && !d.gem_platforms(@platforms).empty?
@@ -244,6 +250,12 @@ def specs_for(groups)
       specs.for(expand_dependencies(deps))
     end
 
+    def dependencies_for(groups)
+      current_dependencies.reject do |d|
+        (d.groups & groups).empty?
+      end
+    end
+
     # Resolve all the dependencies specified in Gemfile. It ensures that
     # dependencies that have been already resolved via locked file and are fresh
     # are reused when resolving dependencies
@@ -898,18 +910,6 @@ def expand_dependency_with_platforms(dep, platforms)
       end
     end
 
-    def dependencies_for(groups)
-      current_dependencies.reject do |d|
-        (d.groups & groups).empty?
-      end
-    end
-
-    def requested_dependencies
-      groups = requested_groups
-      groups.map!(&:to_sym)
-      dependencies_for(groups)
-    end
-
     def source_requirements
       # Load all specs from remote sources
       index

bundler/spec/commands/fund_spec.rb

@@ -0,0 +1,55 @@
+# frozen_string_literal: true
+
+RSpec.describe "bundle fund" do
+  it "prints fund information for all gems in the bundle" do
+    install_gemfile <<-G
+      source "#{file_uri_for(gem_repo1)}"
+      gem 'has_metadata'
+      gem 'has_funding'
+      gem 'rack-obama'
+    G
+
+    bundle "fund"
+
+    expect(out).to include("* has_metadata (1.0)\n  Funding: https://example.com/has_metadata/funding")
+    expect(out).to include("* has_funding (1.2.3)\n  Funding: https://example.com/has_funding/funding")
+    expect(out).to_not include("rack-obama")
+  end
+
+  it "does not consider fund information for gem dependencies" do
+    install_gemfile <<-G
+      source "#{file_uri_for(gem_repo1)}"
+      gem 'gem_with_dependent_funding'
+    G
+
+    bundle "fund"
+
+    expect(out).to_not include("* has_funding (1.2.3)\n  Funding: https://example.com/has_funding/funding")
+    expect(out).to_not include("gem_with_dependent_funding")
+  end
+
+  it "prints message if none of the gems have fund information" do
+    install_gemfile <<-G
+      source "#{file_uri_for(gem_repo1)}"
+      gem 'rack-obama'
+    G
+
+    bundle "fund"
+
+    expect(out).to include("None of the installed gems you directly depend on are looking for funding.")
+  end
+
+  describe "with --group option" do
+    it "prints fund message for only specified group gems" do
+      install_gemfile <<-G
+      source "#{file_uri_for(gem_repo1)}"
+        gem 'has_metadata', :group => :development
+        gem 'has_funding'
+      G
+
+      bundle "fund --group development"
+      expect(out).to include("* has_metadata (1.0)\n  Funding: https://example.com/has_metadata/funding")
+      expect(out).to_not include("* has_funding (1.2.3)\n  Funding: https://example.com/has_funding/funding")
+    end
+  end
+end

bundler/spec/commands/info_spec.rb

@@ -66,6 +66,7 @@
 \tHomepage: http://example.com
 \tDocumentation: https://www.example.info/gems/bestgemever/0.0.1
 \tSource Code: https://example.com/user/bestgemever
+\tFunding: https://example.com/has_metadata/funding
 \tWiki: https://example.com/user/bestgemever/wiki
 \tChangelog: https://example.com/user/bestgemever/CHANGELOG.md
 \tBug Tracker: https://example.com/user/bestgemever/issues

bundler/spec/support/builders.rb

@@ -322,10 +322,21 @@ def __pry__
             "documentation_uri" => "https://www.example.info/gems/bestgemever/0.0.1",
             "homepage_uri"      => "https://bestgemever.example.io",
             "mailing_list_uri"  => "https://groups.example.com/bestgemever",
+            "funding_uri"       => "https://example.com/has_metadata/funding",
             "source_code_uri"   => "https://example.com/user/bestgemever",
             "wiki_uri"          => "https://example.com/user/bestgemever/wiki",
           }
         end
+
+        build_gem "has_funding", "1.2.3" do |s|
+          s.metadata = {
+            "funding_uri"       => "https://example.com/has_funding/funding",
+          }
+        end
+
+        build_gem "gem_with_dependent_funding", "1.0" do |s|
+          s.add_dependency "has_funding"
+        end
       end
     end