From 114d233940abfd60cc33f2ea13621c06a840fd24 Mon Sep 17 00:00:00 2001
From: Grey Baker <greysteil@gmail.com>
Date: Sun, 1 Apr 2018 22:07:27 +0100
Subject: [PATCH] Add convenience methods for accessing version and requirement
 classes

---
 dependabot-core.gemspec                       |  2 +-
 lib/dependabot.rb                             |  1 +
 lib/dependabot/requirement.rb                 | 24 ++++++++++++++++
 .../update_checkers/python/pip/requirement.rb |  1 +
 lib/dependabot/version.rb                     | 28 ++++++++++++++++++-
 5 files changed, 54 insertions(+), 2 deletions(-)
 create mode 100644 lib/dependabot/requirement.rb

diff --git a/dependabot-core.gemspec b/dependabot-core.gemspec
index 657d2f2d58..593d5335c0 100644
--- a/dependabot-core.gemspec
+++ b/dependabot-core.gemspec
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-require "./lib/dependabot/version"
+require "./lib/dependabot"
 
 Gem::Specification.new do |spec|
   spec.name         = "dependabot-core"
diff --git a/lib/dependabot.rb b/lib/dependabot.rb
index fb0269bb85..58eafcb309 100644
--- a/lib/dependabot.rb
+++ b/lib/dependabot.rb
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
 
 module Dependabot
+  VERSION = "0.52.29"
 end
diff --git a/lib/dependabot/requirement.rb b/lib/dependabot/requirement.rb
new file mode 100644
index 0000000000..09be1358f7
--- /dev/null
+++ b/lib/dependabot/requirement.rb
@@ -0,0 +1,24 @@
+# frozen_string_literal: true
+
+require "dependabot/update_checkers/python/pip/requirement"
+require "dependabot/update_checkers/java_script/npm_and_yarn/requirement"
+require "dependabot/update_checkers/php/composer/requirement"
+require "dependabot/update_checkers/elixir/hex/requirement"
+require "dependabot/update_checkers/rust/cargo/requirement"
+
+module Dependabot
+  module Requirement
+    def self.for_package_manager(package_manager)
+      case package_manager
+      when "bundler", "maven", "submodules", "docker" then Gem::Requirement
+      when "npm_and_yarn"
+        UpdateCheckers::JavaScript::NpmAndYarn::Requirement
+      when "pip" then UpdateCheckers::Python::Pip::Requirement
+      when "composer" then UpdateCheckers::Php::Composer::Requirement
+      when "hex" then UpdateCheckers::Elixir::Hex::Requirement
+      when "cargo" then UpdateCheckers::Rust::Cargo::Requirement
+      else raise "Unsupported package_manager #{package_manager}"
+      end
+    end
+  end
+end
diff --git a/lib/dependabot/update_checkers/python/pip/requirement.rb b/lib/dependabot/update_checkers/python/pip/requirement.rb
index 330d408676..655892dae6 100644
--- a/lib/dependabot/update_checkers/python/pip/requirement.rb
+++ b/lib/dependabot/update_checkers/python/pip/requirement.rb
@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+require "dependabot/update_checkers/python/pip"
 require "dependabot/update_checkers/python/pip/version"
 
 module Dependabot
diff --git a/lib/dependabot/version.rb b/lib/dependabot/version.rb
index 58eafcb309..7e68258ead 100644
--- a/lib/dependabot/version.rb
+++ b/lib/dependabot/version.rb
@@ -1,5 +1,31 @@
 # frozen_string_literal: true
 
+# These must be loaded first, or we get load order errors
+require "dependabot/update_checkers/python/pip/requirement"
+require "dependabot/update_checkers/elixir/hex/requirement"
+
+require "dependabot/update_checkers/python/pip/version"
+require "dependabot/update_checkers/java/maven/version"
+require "dependabot/update_checkers/java_script/npm_and_yarn/version"
+require "dependabot/update_checkers/php/composer/version"
+require "dependabot/update_checkers/elixir/hex/version"
+require "dependabot/update_checkers/rust/cargo/version"
+
 module Dependabot
-  VERSION = "0.52.29"
+  module Version
+    # rubocop:disable Metrics/CyclomaticComplexity
+    def self.for_package_manager(package_manager)
+      case package_manager
+      when "bundler", "submodules", "docker" then Gem::Version
+      when "maven" then UpdateCheckers::Java::Maven::Version
+      when "npm_and_yarn" then UpdateCheckers::JavaScript::NpmAndYarn::Version
+      when "pip" then UpdateCheckers::Python::Pip::Version
+      when "composer" then UpdateCheckers::Php::Composer::Version
+      when "hex" then UpdateCheckers::Elixir::Hex::Version
+      when "cargo" then UpdateCheckers::Rust::Cargo::Version
+      else raise "Unsupported package_manager #{package_manager}"
+      end
+    end
+    # rubocop:enable Metrics/CyclomaticComplexity
+  end
 end