force install of git hooks in gemfile.penchant if so desired

README.md

@@ -29,6 +29,9 @@ Yeah, it's a `Gemfile` with some extras:
 # Gemfile.penchant
 source :rubygems
 
+# ensure git hooks are installed when a gemfile is processed, see below
+ensure_git_hooks!
+
 gem 'rails', '3.2.3'
 # expands to:
 #
@@ -173,6 +176,13 @@ It runs `penchant gemfile remote` then runs `bundle exec rake`. Make sure your d
 tests and performs any other magic necessary before each commit. Your re-environmented Gemfile and Gemfile.lock will be added
 to your commit if they've changed.
 
+### Ensuring git hooks get installed
+
+I find that when I pull down new projects I never remember to install the git hooks, which involves an awkward running
+of `bundle exec rake` *after* I've already committed code. Since we have computers now, and they can be told to do things,
+you can add `ensure_git_hooks!` anywhere in your `Gemfile.penchant` to make sure the git hooks are symlinked to the ones
+in the `script/hooks` directory with every processing of `Gemfile.penchant`.
+
 ### Skipping all that Rake falderal?
 
 Do it Travis CI style: stick `[ci skip]` in your commit message. That's why the meat of the git hooks resides in

bin/penchant

@@ -19,9 +19,7 @@ class PenchantCLI < Thor
     Dir[File.join(options[:dir], '**/*')].each { |file| File.chmod(0755, file) }
 
     if File.directory?('.git')
-      Dir['script/hooks/*'].each do |hook|
-        FileUtils.ln_sf File.join(Dir.pwd, hook), ".git/hooks/#{File.split(hook).last}"
-      end
+      Penchant::Hooks.install!
     else
       puts "No git repository detected here. Skipping git hook installation..."
     end

features/cli.feature

@@ -28,7 +28,6 @@ Feature: CLI
       """
       And the output should include "No git"
 
-  @wip
   Scenario: Run in a project where the git hooks are not set up
     Given I have the file "tmp/Gemfile.penchant" with the content:
       """
@@ -41,7 +40,6 @@ Feature: CLI
     When I run "bin/penchant gemfile remote" in the "tmp" directory
     Then the output should include "git hooks not installed"
 
-  @wip
   Scenario: Run in a project where git hooks are set up
     Given I have the file "tmp/Gemfile.penchant" with the content:
       """

features/ruby_gemfile.feature

@@ -278,3 +278,19 @@ Feature: Gemfiles
       gem "one", {:git=>"git://github.com/john/one.git"}
       """
 
+  @mocha
+  Scenario: Force installing of git hooks if the gemfile asks for it
+    Given I expect git hooks to be installed
+    Given I have the file "Gemfile.penchant" with the content:
+      """
+      ensure_git_hooks!
+
+      gem 'one'
+      """
+    When I rebuild the Gemfile for "local" mode
+    Then the file "Gemfile" should have the following content:
+      """
+      # generated by penchant, environment: local
+      gem "one"
+      """
+

features/step_definitions/given/i_expect_git_hooks_to_be_installed.rb

@@ -0,0 +1,3 @@
+Given /^I expect git hooks to be installed$/ do
+  Penchant::Hooks.expects(:install!)
+end

lib/penchant/gemfile.rb

@@ -163,6 +163,10 @@ module Penchant
         yield if !is_deployment
       end
 
+      def ensure_git_hooks!
+        Penchant::Hooks.install!
+      end
+
       def os(*args)
         yield if args.include?(current_os)
       end

lib/penchant/hooks.rb

@@ -16,6 +16,14 @@ module Penchant
         true
       end
     end
+
+    def self.install!
+      puts "[penchant] installing git hooks"
+
+      Dir['script/hooks/*'].each do |hook|
+        FileUtils.ln_sf File.join(Dir.pwd, hook), ".git/hooks/#{File.split(hook).last}"
+      end
+    end
   end
 end
 

lib/penchant/version.rb

@@ -1,3 +1,3 @@
 module Penchant
-  VERSION = "0.2.13"
+  VERSION = "0.2.14"
 end