Allow the use of librarian puppet without a forge

This update adds support for using librarian puppet without a forge.

Setting the LIBRARIAN_PUPPET_USE_FORGE binary option in one of the
configuration files will prevent the utility from reaching out to a
forge for dependency resolution.

Fixes rodjek#325

lib/librarian/puppet/cli.rb

@@ -47,6 +47,7 @@ def init
       option "destructive", :type => :boolean, :default => false
       option "local", :type => :boolean, :default => false
       option "use-v1-api", :type => :boolean, :default => true
+      option "use-forge", :type => :boolean
       def install
 
         ensure!
@@ -63,6 +64,9 @@ def install
         end
 
         environment.config_db.local['use-v1-api'] = options['use-v1-api'] ? '1' : nil
+        unless options["use-forge"].nil?
+          environment.config_db.local['use-forge'] = options['use-forge'].to_s
+        end
         environment.config_db.local['mode'] = options['local'] ? 'local' : nil
 
         resolve!
@@ -84,6 +88,7 @@ def update(*names)
       option "strip-dot-git", :type => :boolean
       option "path", :type => :string
       option "destructive", :type => :boolean, :default => false
+      option "use-forge", :type => :boolean
       def package
         environment.vendor!
         install

lib/librarian/puppet/environment.rb

@@ -57,6 +57,10 @@ def local?
       def use_v1_api
         config_db['use-v1-api']
       end
+
+      def use_forge
+        config_db['use-forge'].to_s == 'false' ? false : true
+      end
     end
   end
 end

lib/librarian/puppet/source/local.rb

@@ -13,13 +13,23 @@ def install!(manifest)
 
           name, version = manifest.name, manifest.version
           found_path = found_path(name)
-          raise Error, "Path for #{name} doesn't contain a puppet module" if found_path.nil?
 
-          unless name.include? '/' or name.include? '-'
-            warn { "Invalid module name '#{name}', you should qualify it with 'ORGANIZATION-#{name}' for resolution to work correctly" }
+          # We only care about this if we're fetching from a Forge
+          if found_path || self.is_a?(Librarian::Puppet::Source::Forge)
+            raise Error, "Path for #{name} doesn't contain a puppet module" if found_path.nil?
+
+            unless name.include? '/' or name.include? '-'
+              warn { "Invalid module name '#{name}', you should qualify it with 'ORGANIZATION-#{name}' for resolution to work correctly" }
+            end
+
+            install_path = environment.install_path.join(module_name(name))
+          elsif !repository_cached
+            raise Error, "Could not find cached version of #{name} for installation"
+          else
+            found_path = repository_cache_path
+            install_path = environment.project_path + path.to_s
           end
 
-          install_path = environment.install_path.join(module_name(name))
           if install_path.exist? && rsync? != true
             debug { "Deleting #{relative_path_to(install_path)}" }
             install_path.rmtree
@@ -43,9 +53,13 @@ def fetch_dependencies(name, version, extra)
           end
 
           parsed_metadata['dependencies'].each do |d|
-            gem_requirement = Librarian::Dependency::Requirement.new(d['version_requirement']).to_gem_requirement
-            new_dependency = Dependency.new(d['name'], gem_requirement, forge_source)
-            dependencies << new_dependency
+            if environment.use_forge
+              gem_requirement = Librarian::Dependency::Requirement.new(d['version_requirement']).to_gem_requirement
+              new_dependency = Dependency.new(d['name'], gem_requirement, forge_source)
+              dependencies << new_dependency
+            end
+
+            dependencies
           end
 
           dependencies