added gemspec command to dsl to allow importing of gemspecs

2 files changed, 103 insertions, 0 deletions

diff --git a/lib/bundler/dsl.rb b/lib/bundler/dsl.rb
index cbfa3142b7..c7e6dedb45 100644
--- a/lib/bundler/dsl.rb
+++ b/lib/bundler/dsl.rb
@@ -20,6 +20,29 @@ module Bundler
       @env             = nil
     end
 
+    def gemspec(opts)
+      path              = opts[:path] || '.'
+      name              = opts[:name] || '*'
+      development_group = opts[:development_group] || :developement
+      gemspecs = Dir[File.join(path, "#{name}.gemspec")]
+      case gemspecs.size
+      when 1
+        spec = Gem::Specification.load(gemspecs.first)
+        spec.runtime_dependencies.each do |dep|
+          gem dep.name, dep.requirement.to_s
+        end
+        group(development_group) do
+          spec.development_dependencies.each do |dep|
+            gem dep.name, dep.requirement.to_s
+          end
+        end
+      when 0
+        raise InvalidOption, "There are no gemspecs at #{path}."
+      else
+        raise InvalidOption, "There are multiple gemspecs at #{path}. Please use the :name option to specify which one."
+      end
+    end
+
     def gem(name, *args)
       options = Hash === args.last ? args.pop : {}
       version = args.last || ">= 0"
diff --git a/spec/install/gemspec_spec.rb b/spec/install/gemspec_spec.rb
new file mode 100644
index 0000000000..db85e3d6c5
--- /dev/null
+++ b/spec/install/gemspec_spec.rb
@@ -0,0 +1,80 @@
+require "spec_helper"
+
+describe "bundle install from an existing gemspec" do
+
+  before(:each) do
+    build_gem "bar", :to_system => true
+    build_gem "bar-dev", :to_system => true
+  end
+
+  it "should install runtime and development dependecies" do
+    build_lib("foo", :path => tmp.join("foo")) do |s|
+      s.write("Gemfile", "source :rubygems\ngemspec")
+      s.add_dependency "bar", "=1.0.0"
+      s.add_development_dependency "bar-dev", '=1.0.0'
+    end
+    install_gemfile <<-G
+      source "file://#{gem_repo2}"
+      gemspec :path => '#{tmp.join("foo")}'
+    G
+
+    should_be_installed "bar 1.0.0"
+    should_be_installed "bar-dev 1.0.0", :groups => :development
+  end
+
+  it "should raise if there are no gemspecs available" do
+    build_lib("foo", :path => tmp.join("foo"), :gemspec => false)
+
+    error = install_gemfile(<<-G, :expect_err => true)
+      source "file://#{gem_repo2}"
+      gemspec :path => '#{tmp.join("foo")}'
+    G
+    error.should match(/There are no gemspecs at #{tmp.join('foo')}/)
+  end
+
+  it "should raise if there are too many gemspecs available" do
+    build_lib("foo", :path => tmp.join("foo")) do |s|
+      s.write("foo2.gemspec", "")
+    end
+
+    error = install_gemfile(<<-G, :expect_err => true)
+      source "file://#{gem_repo2}"
+      gemspec :path => '#{tmp.join("foo")}'
+    G
+    error.should match(/There are multiple gemspecs at #{tmp.join('foo')}/)
+  end
+
+  it "should pick a specific gemspec" do
+    build_lib("foo", :path => tmp.join("foo")) do |s|
+      s.write("foo2.gemspec", "")
+      s.add_dependency "bar", "=1.0.0"
+      s.add_development_dependency "bar-dev", '=1.0.0'
+    end
+
+    install_gemfile(<<-G, :expect_err => true)
+      source "file://#{gem_repo2}"
+      gemspec :path => '#{tmp.join("foo")}', :name => 'foo'
+    G
+
+    should_be_installed "bar 1.0.0"
+    should_be_installed "bar-dev 1.0.0"
+  end
+
+  it "should use a specific group for development dependencies" do
+    build_lib("foo", :path => tmp.join("foo")) do |s|
+      s.write("foo2.gemspec", "")
+      s.add_dependency "bar", "=1.0.0"
+      s.add_development_dependency "bar-dev", '=1.0.0', :groups => :development
+    end
+
+    install_gemfile(<<-G, :expect_err => true)
+      source "file://#{gem_repo2}"
+      gemspec :path => '#{tmp.join("foo")}', :name => 'foo', :development_group => :dev
+    G
+
+    should_be_installed "bar 1.0.0"
+    should_not_be_installed "bar-dev 1.0.0", :groups => :development
+    should_be_installed "bar-dev 1.0.0", :groups => :dev
+  end
+
+end