make root_path configurable #94

CHANGELOG.md

@@ -1,5 +1,6 @@
 ## Edge version
 
+* Add configurable `root_path` option for `bower-rails`
 * Add `rake bower:install:deployment` which installs from generated bower.json without generating it first, keeping any additions (like dependency conflict resolutions) intact [#89][] and [#92][]
 
 [#89]: https://github.com/42dev/bower-rails/pull/89

README.md

@@ -130,10 +130,17 @@ Change options in your `config/initializers/bower_rails.rb`:
 
 ``` ruby
 BowerRails.configure do |bower_rails|
-  # By default options are false
-  bower_rails.install_before_precompile = true # invokes rake bower:install before precompilation
-  bower_rails.resolve_before_precompile = true # invokes rake bower:resolve before precompilation
-  bower_rails.clean_before_precompile = true   # invokes rake bower:clean before precompilation
+  # Tell bower-rails what path should be considered as root. Defaults to Dir.pwd
+  bower_rails.root_path = Dir.pwd
+
+  # Invokes rake bower:install before precompilation. Defaults to false
+  bower_rails.install_before_precompile = true
+
+  # Invokes rake bower:resolve before precompilation. Defaults to false
+  bower_rails.resolve_before_precompile = true
+
+  # Invokes rake bower:clean before precompilation. Defaults to false
+  bower_rails.clean_before_precompile = true
 end
 ```
 

lib/bower-rails.rb

@@ -5,6 +5,9 @@ module BowerRails
   extend self
 
   class << self
+    # The root path of the project
+    attr_accessor :root_path
+
     # An array of tasks to enhance `rake assets:precompile`
     attr_reader :tasks
 
@@ -35,10 +38,10 @@ def collect_tasks
       end
   end
 
-  # By default tasks are empty
-  @tasks = []
 
   # Set default values for options
+  @root_path = Dir.pwd
+  @tasks = []
   @install_before_precompile = false
   @resolve_before_precompile = false
   @clean_before_precompile   = false

lib/bower-rails/dsl.rb

@@ -5,14 +5,13 @@ module BowerRails
   class Dsl
 
     def self.evalute(filename)
-      new.tap { |dsl| dsl.eval_file(File.join(dsl.root_path, filename)) }
+      new.tap { |dsl| dsl.eval_file(File.join(BowerRails.root_path, filename)) }
     end
 
-    attr_reader :dependencies, :root_path
+    attr_reader :dependencies
 
     def initialize
       @dependencies = {}
-      @root_path ||= Dir.pwd
       @assets_path ||= "assets"
     end
 
@@ -66,7 +65,7 @@ def write_bower_json
     end
 
     def generate_dotbowerrc
-      contents = JSON.parse(File.read(File.join(@root_path, '.bowerrc'))) rescue {}
+      contents = JSON.parse(File.read(File.join(BowerRails.root_path, '.bowerrc'))) rescue {}
       contents["directory"] = "bower_components"
       JSON.pretty_generate(contents)
     end
@@ -127,7 +126,7 @@ def assert_group_name name
     end
 
     def normalize_location_path(loc, assets_path)
-      File.join(@root_path, loc.to_s, assets_path)
+      File.join(BowerRails.root_path, loc.to_s, assets_path)
     end
   end
 end

lib/generators/bower_rails/initialize/templates/bower_rails.rb

@@ -1,10 +1,13 @@
 BowerRails.configure do |bower_rails|
-  # Invoke `rake bower:install` automatically before the `rake assets:precompile` task.
+  # Tell bower-rails what path should be considered as root. Defaults to Dir.pwd
+  # bower_rails.root_path = Dir.pwd
+
+  # Invokes rake bower:install before precompilation. Defaults to false
   # bower_rails.install_before_precompile = true
 
-  # Invoke `rake bower:resolve` automatically before the `rake assets:precompile` task.
+  # Invokes rake bower:resolve before precompilation. Defaults to false
   # bower_rails.resolve_before_precompile = true
 
-  # Invoke `rake bower:clean` automatically before the `rake assets:precompile` task.
+  # Invokes rake bower:clean before precompilation. Defaults to false
   # bower_rails.clean_before_precompile = true
-end
+end

lib/tasks/bower.rake

@@ -70,9 +70,9 @@ before 'assets:precompile' do
 end
 
 def perform remove_components = true, &block
-  entries = Dir.entries(get_bower_root_path)
+  entries = Dir.entries(BowerRails.root_path)
 
-  npm_path = File.join(get_bower_root_path, 'node_modules', '.bin')
+  npm_path = File.join(BowerRails.root_path, 'node_modules', '.bin')
   bower = find_command('bower', [npm_path])
 
   if bower.nil?
@@ -97,10 +97,6 @@ EOS
   end
 end
 
-def get_bower_root_path
-  Dir.pwd
-end
-
 def dsl_perform_command remove_components = true, &block
   dsl = BowerRails::Dsl.evalute("Bowerfile")
 
@@ -121,7 +117,7 @@ end
 
 #run the passed bower block in appropriate folders
 def perform_command remove_components = true, &block
-  bower_root = get_bower_root_path
+  bower_root = BowerRails.root_path
   #load in bower json file
   txt  = File.read(File.join(bower_root, "bower.json"))
   json = JSON.parse(txt)

spec/bower-rails/bower-rails_spec.rb

@@ -1,6 +1,10 @@
 require 'spec_helper'
 
 describe BowerRails do
+  it 'should set default value for root_path option' do
+    expect(BowerRails.root_path).to eq(Dir.pwd)
+  end
+
   it 'should set default value for install_before_precompile option' do
     expect(BowerRails.install_before_precompile).to eq(false)
   end
@@ -21,12 +25,19 @@
     before :each do
       BowerRails.instance_variable_set(:@tasks, [])
       BowerRails.configure do |bower_rails|
+        bower_rails.root_path = '/home/username/dirname'
         bower_rails.install_before_precompile = false
         bower_rails.resolve_before_precompile = false
         bower_rails.clean_before_precompile = false
       end
     end
 
+    describe '#root_path' do
+      it 'should set root_path option' do
+        expect(BowerRails.root_path).to eq('/home/username/dirname')
+      end
+    end
+
     describe '#install_before_precompile' do
       before do
         BowerRails.configure do |bower_rails|