16 files changed, 268 insertions, 3 deletions

diff --git a/app/models/blob.rb b/app/models/blob.rb
index 8e25ba590c7..e75926241ba 100644
--- a/app/models/blob.rb
+++ b/app/models/blob.rb
@@ -43,7 +43,19 @@ class Blob < SimpleDelegator
     BlobViewer::Readme,
     BlobViewer::License,
     BlobViewer::Contributing,
-    BlobViewer::Changelog
+    BlobViewer::Changelog,
+
+    BlobViewer::Cartfile,
+    BlobViewer::ComposerJson,
+    BlobViewer::Gemfile,
+    BlobViewer::Gemspec,
+    BlobViewer::GodepsJson,
+    BlobViewer::PackageJson,
+    BlobViewer::Podfile,
+    BlobViewer::Podspec,
+    BlobViewer::PodspecJson,
+    BlobViewer::RequirementsTxt,
+    BlobViewer::YarnLock
   ].freeze
 
   attr_reader :project
diff --git a/app/models/blob_viewer/cartfile.rb b/app/models/blob_viewer/cartfile.rb
new file mode 100644
index 00000000000..d8471bc33c0
--- /dev/null
+++ b/app/models/blob_viewer/cartfile.rb
@@ -0,0 +1,15 @@
+module BlobViewer
+  class Cartfile < DependencyManager
+    include Static
+
+    self.file_types = %i(cartfile)
+
+    def manager_name
+      'Carthage'
+    end
+
+    def manager_url
+      'https://github.com/Carthage/Carthage'
+    end
+  end
+end
diff --git a/app/models/blob_viewer/composer_json.rb b/app/models/blob_viewer/composer_json.rb
new file mode 100644
index 00000000000..ef8b4aef8e8
--- /dev/null
+++ b/app/models/blob_viewer/composer_json.rb
@@ -0,0 +1,23 @@
+module BlobViewer
+  class ComposerJson < DependencyManager
+    include ServerSide
+
+    self.file_types = %i(composer_json)
+
+    def manager_name
+      'Composer'
+    end
+
+    def manager_url
+      'https://getcomposer.com/'
+    end
+
+    def package_name
+      @package_name ||= package_name_from_json('name')
+    end
+
+    def package_url
+      "https://packagist.org/packages/#{package_name}"
+    end
+  end
+end
diff --git a/app/models/blob_viewer/dependency_manager.rb b/app/models/blob_viewer/dependency_manager.rb
new file mode 100644
index 00000000000..a8d9be945dc
--- /dev/null
+++ b/app/models/blob_viewer/dependency_manager.rb
@@ -0,0 +1,43 @@
+module BlobViewer
+  class DependencyManager < Base
+    include Auxiliary
+
+    self.partial_name = 'dependency_manager'
+    self.binary = false
+
+    def manager_name
+      raise NotImplementedError
+    end
+
+    def manager_url
+      raise NotImplementedError
+    end
+
+    def package_type
+      'package'
+    end
+
+    def package_name
+      nil
+    end
+
+    def package_url
+      nil
+    end
+
+    private
+
+    def package_name_from_json(key)
+      prepare!
+
+      JSON.parse(blob.data)[key] rescue nil
+    end
+
+    def package_name_from_method_call(name)
+      prepare!
+
+      match = blob.data.match(/#{name}\s*=\s*["'](?<name>[^"']+)["']/)
+      match[:name] if match
+    end
+  end
+end
diff --git a/app/models/blob_viewer/gemfile.rb b/app/models/blob_viewer/gemfile.rb
new file mode 100644
index 00000000000..fae8c8df23f
--- /dev/null
+++ b/app/models/blob_viewer/gemfile.rb
@@ -0,0 +1,15 @@
+module BlobViewer
+  class Gemfile < DependencyManager
+    include Static
+
+    self.file_types = %i(gemfile gemfile_lock)
+
+    def manager_name
+      'Bundler'
+    end
+
+    def manager_url
+      'http://bundler.io/'
+    end
+  end
+end
diff --git a/app/models/blob_viewer/gemspec.rb b/app/models/blob_viewer/gemspec.rb
new file mode 100644
index 00000000000..7802edeb754
--- /dev/null
+++ b/app/models/blob_viewer/gemspec.rb
@@ -0,0 +1,27 @@
+module BlobViewer
+  class Gemspec < DependencyManager
+    include ServerSide
+
+    self.file_types = %i(gemspec)
+
+    def manager_name
+      'RubyGems'
+    end
+
+    def manager_url
+      'https://rubygems.org/'
+    end
+
+    def package_type
+      'gem'
+    end
+
+    def package_name
+      @package_name ||= package_name_from_method_call('name')
+    end
+
+    def package_url
+      "https://rubygems.org/gems/#{package_name}"
+    end
+  end
+end
diff --git a/app/models/blob_viewer/godeps_json.rb b/app/models/blob_viewer/godeps_json.rb
new file mode 100644
index 00000000000..e19a602603b
--- /dev/null
+++ b/app/models/blob_viewer/godeps_json.rb
@@ -0,0 +1,15 @@
+module BlobViewer
+  class GodepsJson < DependencyManager
+    include Static
+
+    self.file_types = %i(godeps_json)
+
+    def manager_name
+      'godep'
+    end
+
+    def manager_url
+      'https://github.com/tools/godep'
+    end
+  end
+end
diff --git a/app/models/blob_viewer/package_json.rb b/app/models/blob_viewer/package_json.rb
new file mode 100644
index 00000000000..09221efb56c
--- /dev/null
+++ b/app/models/blob_viewer/package_json.rb
@@ -0,0 +1,23 @@
+module BlobViewer
+  class PackageJson < DependencyManager
+    include ServerSide
+
+    self.file_types = %i(package_json)
+
+    def manager_name
+      'npm'
+    end
+
+    def manager_url
+      'https://www.npmjs.com/'
+    end
+
+    def package_name
+      @package_name ||= package_name_from_json('name')
+    end
+
+    def package_url
+      "https://www.npmjs.com/package/#{package_name}"
+    end
+  end
+end
diff --git a/app/models/blob_viewer/podfile.rb b/app/models/blob_viewer/podfile.rb
new file mode 100644
index 00000000000..507bc734cb4
--- /dev/null
+++ b/app/models/blob_viewer/podfile.rb
@@ -0,0 +1,15 @@
+module BlobViewer
+  class Podfile < DependencyManager
+    include Static
+
+    self.file_types = %i(podfile)
+
+    def manager_name
+      'CocoaPods'
+    end
+
+    def manager_url
+      'https://cocoapods.org/'
+    end
+  end
+end
diff --git a/app/models/blob_viewer/podspec.rb b/app/models/blob_viewer/podspec.rb
new file mode 100644
index 00000000000..a4c242db3a9
--- /dev/null
+++ b/app/models/blob_viewer/podspec.rb
@@ -0,0 +1,27 @@
+module BlobViewer
+  class Podspec < DependencyManager
+    include ServerSide
+
+    self.file_types = %i(podspec)
+
+    def manager_name
+      'CocoaPods'
+    end
+
+    def manager_url
+      'https://cocoapods.org/'
+    end
+
+    def package_type
+      'pod'
+    end
+
+    def package_name
+      @package_name ||= package_name_from_method_call('name')
+    end
+
+    def package_url
+      "https://cocoapods.org/pods/#{package_name}"
+    end
+  end
+end
diff --git a/app/models/blob_viewer/podspec_json.rb b/app/models/blob_viewer/podspec_json.rb
new file mode 100644
index 00000000000..602f4a51fd9
--- /dev/null
+++ b/app/models/blob_viewer/podspec_json.rb
@@ -0,0 +1,9 @@
+module BlobViewer
+  class PodspecJson < Podspec
+    self.file_types = %i(podspec_json)
+
+    def package_name
+      @package_name ||= package_name_from_json('name')
+    end
+  end
+end
diff --git a/app/models/blob_viewer/requirements_txt.rb b/app/models/blob_viewer/requirements_txt.rb
new file mode 100644
index 00000000000..83ac55f61d0
--- /dev/null
+++ b/app/models/blob_viewer/requirements_txt.rb
@@ -0,0 +1,15 @@
+module BlobViewer
+  class RequirementsTxt < DependencyManager
+    include Static
+
+    self.file_types = %i(requirements_txt)
+
+    def manager_name
+      'pip'
+    end
+
+    def manager_url
+      'https://pip.pypa.io/'
+    end
+  end
+end
diff --git a/app/models/blob_viewer/yarn_lock.rb b/app/models/blob_viewer/yarn_lock.rb
new file mode 100644
index 00000000000..31588ddcbab
--- /dev/null
+++ b/app/models/blob_viewer/yarn_lock.rb
@@ -0,0 +1,15 @@
+module BlobViewer
+  class YarnLock < DependencyManager
+    include Static
+
+    self.file_types = %i(yarn_lock)
+
+    def manager_name
+      'Yarn'
+    end
+
+    def manager_url
+      'https://yarnpkg.com/'
+    end
+  end
+end
diff --git a/app/views/projects/blob/viewers/_dependency_manager.html.haml b/app/views/projects/blob/viewers/_dependency_manager.html.haml
new file mode 100644
index 00000000000..a0f0215a5ff
--- /dev/null
+++ b/app/views/projects/blob/viewers/_dependency_manager.html.haml
@@ -0,0 +1,11 @@
+= icon('cubes fw')
+= succeed '.' do
+  This project manages its dependencies using
+  %strong= viewer.manager_name
+
+  - if viewer.package_name
+    and defines a #{viewer.package_type} named
+    %strong<
+      = link_to viewer.package_name, viewer.package_url, target: '_blank', rel: 'noopener noreferrer'
+
+= link_to 'Learn more', viewer.manager_url, target: '_blank', rel: 'noopener noreferrer'
diff --git a/app/views/projects/blob/viewers/_license.html.haml b/app/views/projects/blob/viewers/_license.html.haml
index 9a79d164692..fb9d0b99d09 100644
--- a/app/views/projects/blob/viewers/_license.html.haml
+++ b/app/views/projects/blob/viewers/_license.html.haml
@@ -5,4 +5,4 @@ This project is licensed under the
 = succeed '.' do
   %strong= license.name
 
-= link_to 'Learn more about this license', license.url, target: '_blank', rel: 'noopener noreferrer'
+= link_to 'Learn more', license.url, target: '_blank', rel: 'noopener noreferrer'
diff --git a/app/views/projects/blob/viewers/_loading_auxiliary.html.haml b/app/views/projects/blob/viewers/_loading_auxiliary.html.haml
index 058c74bce0d..c7dc9e3250a 100644
--- a/app/views/projects/blob/viewers/_loading_auxiliary.html.haml
+++ b/app/views/projects/blob/viewers/_loading_auxiliary.html.haml
@@ -1,2 +1,2 @@
 = icon('spinner spin fw')
-Loading…
+Analyzing file…