lib/roll.rb in roll-1.1.0 vs lib/roll.rb in roll-1.2.0

@@ -1,21 +1,33 @@
-require 'roll/kernel'
+require 'roll/config'
+require 'roll/library'
+require 'roll/kernel'  # require last
 
 module Roll
-  VERSION = "1.0.0"  #:till: VERSION = "<%= version %>"
+  VERSION = "1.2.0"  # TODO: make verison reference dynamic
 
   # Get environment.
-
   def self.env(name=nil)
     if name
       env = Environment.new(name)
     else
       env = Environment.new
     end
     env
   end
 
+  # Change current environment.
+  def self.use(name)
+    Environment.save(name)
+  end
+
+  # Return Array of environment names.
+  def self.list
+    Environment.list
+  end
+
+  #
   def self.index(name=nil)
     #if name
     #  env = Environment.new(name)
     #else
     #  env = Environment.new
@@ -23,19 +35,17 @@
     env(name).index.to_s
   end
 
   # Synchronize an environment by +name+. If a +name+
   # is not given the current environment is synchronized.
-
   def self.sync(name=nil)
     env = env(name)
     env.sync
     env.save
   end
 
   # Add path to current environment.
-
   def self.in(path, depth=3)
     env = Environment.new
 
     lookup = env.lookup
     lookup.append(path, depth)
@@ -46,11 +56,10 @@
 
     return path, lookup.file
   end
 
   # Remove path from current environment.
-
   def self.out(path)
     env = Environment.new
 
     lookup = env.lookup
     lookup.delete(path)
@@ -61,11 +70,10 @@
 
     return path, lookup.file
   end
 
   # Go thru each roll lib and collect bin paths.
-
   def self.path
     binpaths = []
     Library.list.each do |name|
       lib = Library[name]
       if lib.bindir?
@@ -77,11 +85,24 @@
 
   # Verify dependencies are in current environment.
   #--
   # TODO: Instead of Dir.pwd, lookup project root.
   #++
-  def self.verify(root=Dir.pwd)   
-    Library.new(root).verify
+  def self.verify(name=nil)
+    if name
+      Library.open(name).verify
+    else
+      Library.new(Dir.pwd).verify
+    end
+  end
+
+  # VersionError is raised when a requested version cannot be found.
+  class VersionError < ::RangeError  # :nodoc:
+  end
+
+  # VersionConflict is raised when selecting another version
+  # of a library when a previous version has already been selected.
+  class VersionConflict < ::LoadError  # :nodoc:
   end
 
 end