A gem for dynamic file paths. Paths can be defined using strings with variable substitution. i.e. 'fixtures/:product/:state". When the path is resolved into a string any part that begins with a colon will be replaced with it's value from a params hash or resolver object.
Add this line to your application's Gemfile:
gem 'magic_path'And then execute:
$ bundle
Or install it yourself as:
$ gem install magic_path
# Create our path
MagicPath.create_path :my_path, { pattern: 'data/:state/fixtures' }
# use the path
MagicPath.my_path.resolve { state: 'ohio' }
# /data/ohio/fixtures# Create our path
MagicPath.create_path :my_path, { pattern: 'data/:state/:product/fixtures', params: { product: 'foobar' } }
# use the path
MagicPath.my_path.resolve { state: 'ohio' }
# /data/ohio/foobar/fixtures## Create our base path
MagicPath.create_path :base_data, { pattern: 'data/:state/:product', params: { product: 'foobar' } }
# Create our path
MagicPath.create_path :my_path, { pattern: ':base_data/fixtures' }
# use the path
MagicPath.my_path.resolve { state: 'ohio' }
# /data/ohio/foobar/fixturesrequire 'Nenv'
# Create our path
MagicPath.create_path :my_path, { pattern: 'data/:test_env/fixtures' }
# use the path (Assuming test_env has been set to "test" in the environment)
MagicPath.my_path.to_s # to_s is the same as calling resolve without an aditional params hash.
# /data/test/fixturesA resolver is a simply an object that can respond to a variable name. You can create your own and add the to MagicPath like so:
class MyResolver
def test_env
"test"
end
end
# Create our path
MagicPath.create_path :my_path, { pattern: 'data/:test_env/fixtures' }
MagicPath.add_resolver MyResolver.new
MagicPath.my_path.to_s # to_s is the same as calling resolve without an aditional params hash.
# /data/test/fixturesIf Nenv has already been required by your code, it will be automatically used as a resolver.