Add --allow-root option to install step

2 files changed, 56 insertions, 0 deletions

diff --git a/lib/license/finder/ext.rb b/lib/license/finder/ext.rb
index 3d8a463..3c56c7a 100644
--- a/lib/license/finder/ext.rb
+++ b/lib/license/finder/ext.rb
@@ -1,5 +1,6 @@
 # frozen_string_literal: true
 
+require 'license/finder/ext/bower'
 require 'license/finder/ext/go_modules'
 require 'license/finder/ext/gradle'
 require 'license/finder/ext/license'
diff --git a/lib/license/finder/ext/bower.rb b/lib/license/finder/ext/bower.rb
new file mode 100644
index 0000000..3c6ba6f
--- /dev/null
+++ b/lib/license/finder/ext/bower.rb
@@ -0,0 +1,55 @@
+# frozen_string_literal: true
+
+module LicenseFinder
+  class Bower < PackageManager
+    def prepare
+      shell.execute([:bower, :install, '--allow-root'])
+    end
+
+    def current_packages
+      bower_output.map do |bower_module|
+        map_from(bower_module)
+      end
+    end
+
+    def possible_package_paths
+      [project_path.join('bower.json')]
+    end
+
+    private
+
+    def bower_output
+      stdout, _stderr, status = Dir.chdir(project_path) do
+        shell.execute([:bower, :list, '--json', '-l', 'action', '--allow-root'])
+      end
+      return [] unless status.success?
+
+      json = JSON.parse(stdout)
+      json.fetch('dependencies', {}).values
+    end
+
+    def map_from(bower_module)
+      spec = bower_module.fetch('pkgMeta', {})
+
+      if spec.empty?
+        endpoint = bower_module.fetch('endpoint', {})
+        Package.new(
+          endpoint['name'],
+          endpoint['target'],
+          install_path: bower_module['canonicalDir'],
+        )
+      else
+        Package.new(
+          spec['name'],
+          spec['version'],
+          summary: spec['description'],
+          description: spec['readme'],
+          homepage: spec['homepage'],
+          spec_licenses: Package.license_names_from_standard_spec(spec),
+          install_path: bower_module['canonicalDir'],
+        )
+      end
+    end
+  end
+end
+