Added tests for a minimumGit version of 1.8.0.

lib/homesick.rb

@@ -8,7 +8,6 @@ require 'homesick/cli'
 # Homesick's top-level module
 module Homesick
   GITHUB_NAME_REPO_PATTERN = /\A([A-Za-z0-9_-]+\/[A-Za-z0-9_-]+)\Z/
-  GIT_VERSION_PATTERN = /[#{Homesick::Actions::GitActions::MAJOR}-9]\.[#{Homesick::Actions::GitActions::MINOR}-9]\.[#{Homesick::Actions::GitActions::PATCH}-9]/
   SUBDIR_FILENAME = '.homesick_subdir'
 
   DEFAULT_CASTLE_NAME = 'dotfiles'

lib/homesick/actions/git_actions.rb

@@ -4,10 +4,23 @@ module Homesick
     # Git-related helper methods for Homesick
     module GitActions
       # Information on the minimum git version required for Homesick
-      MAJOR = 2
-      MINOR = 0
-      PATCH = 0
-      STRING = [MAJOR, MINOR, PATCH].compact.join('.')
+      MIN_VERSION = {
+        major: 1,
+        minor: 8,
+        patch: 0
+      }
+      STRING = MIN_VERSION.values.join('.')
+
+      def version_check
+        info = `git --version`.scan(/(\d+)\.(\d+)\.(\d+)/).flatten.map(&:to_i)
+        return false unless info.count == 3
+        current_version = Hash[ [:major, :minor, :patch].zip(info) ]
+        return true if current_version.eql?(MIN_VERSION)
+        current_version.each do |k,v|
+          return true if v > MIN_VERSION[k]
+        end
+        false
+      end
 
       # TODO: move this to be more like thor's template, empty_directory, etc
       def git_clone(repo, config = {})

lib/homesick/cli.rb

@@ -20,7 +20,7 @@ module Homesick
     def initialize(args = [], options = {}, config = {})
       super
       # Check if git is installed
-      unless `git --version` =~ GIT_VERSION_PATTERN
+      unless version_check
         say_status :error, "Git version >= #{Homesick::Actions::GitActions::STRING} must be installed to use Homesick", :red
         exit(1)
       end