1 files changed, 64 insertions, 0 deletions
diff --git a/lib/bundler/cli/lock.rb b/lib/bundler/cli/lock.rb
new file mode 100644
index 0000000000..223db9419f
--- /dev/null
+++ b/lib/bundler/cli/lock.rb
@@ -0,0 +1,64 @@
+# frozen_string_literal: true
+require "bundler/cli/common"
+
+module Bundler
+  class CLI::Lock
+    attr_reader :options
+
+    def initialize(options)
+      @options = options
+    end
+
+    def run
+      unless Bundler.default_gemfile
+        Bundler.ui.error "Unable to find a Gemfile to lock"
+        exit 1
+      end
+
+      print = options[:print]
+      ui = Bundler.ui
+      Bundler.ui = UI::Silent.new if print
+
+      Bundler::Fetcher.disable_endpoint = options["full-index"]
+
+      update = options[:update]
+      if update.is_a?(Array) # unlocking specific gems
+        Bundler::CLI::Common.ensure_all_gems_in_lockfile!(update)
+        update = { :gems => update, :lock_shared_dependencies => options[:conservative] }
+      end
+      definition = Bundler.definition(update)
+
+      Bundler::CLI::Common.configure_gem_version_promoter(Bundler.definition, options) if options[:update]
+
+      options["remove-platform"].each do |platform|
+        definition.remove_platform(platform)
+      end
+
+      options["add-platform"].each do |platform_string|
+        platform = Gem::Platform.new(platform_string)
+        if platform.to_s == "unknown"
+          Bundler.ui.warn "The platform `#{platform_string}` is unknown to RubyGems " \
+            "and adding it will likely lead to resolution errors"
+        end
+        definition.add_platform(platform)
+      end
+
+      if definition.platforms.empty?
+        raise InvalidOption, "Removing all platforms from the bundle is not allowed"
+      end
+
+      definition.resolve_remotely! unless options[:local]
+
+      if print
+        puts definition.to_lock
+      else
+        file = options[:lockfile]
+        file = file ? File.expand_path(file) : Bundler.default_lockfile
+        puts "Writing lockfile to #{file}"
+        definition.lock(file)
+      end
+
+      Bundler.ui = ui
+    end
+  end
+end