1 files changed, 63 insertions, 0 deletions
diff --git a/lib/bundler/cli/update.rb b/lib/bundler/cli/update.rb
new file mode 100644
index 0000000000..df7524f004
--- /dev/null
+++ b/lib/bundler/cli/update.rb
@@ -0,0 +1,63 @@
+# frozen_string_literal: true
+require "bundler/cli/common"
+
+module Bundler
+  class CLI::Update
+    attr_reader :options, :gems
+    def initialize(options, gems)
+      @options = options
+      @gems = gems
+    end
+
+    def run
+      Bundler.ui.level = "error" if options[:quiet]
+
+      Plugin.gemfile_install(Bundler.default_gemfile) if Bundler.feature_flag.plugins?
+
+      sources = Array(options[:source])
+      groups  = Array(options[:group]).map(&:to_sym)
+
+      if gems.empty? && sources.empty? && groups.empty? && !options[:ruby] && !options[:bundler]
+        # We're doing a full update
+        Bundler.definition(true)
+      else
+        unless Bundler.default_lockfile.exist?
+          raise GemfileLockNotFound, "This Bundle hasn't been installed yet. " \
+            "Run `bundle install` to update and install the bundled gems."
+        end
+        Bundler::CLI::Common.ensure_all_gems_in_lockfile!(gems)
+
+        if groups.any?
+          specs = Bundler.definition.specs_for groups
+          gems.concat(specs.map(&:name))
+        end
+
+        Bundler.definition(:gems => gems, :sources => sources, :ruby => options[:ruby],
+                           :lock_shared_dependencies => options[:conservative])
+      end
+
+      Bundler::CLI::Common.configure_gem_version_promoter(Bundler.definition, options)
+
+      Bundler::Fetcher.disable_endpoint = options["full-index"]
+
+      opts = options.dup
+      opts["update"] = true
+      opts["local"] = options[:local]
+
+      Bundler.settings[:jobs] = opts["jobs"] if opts["jobs"]
+
+      Bundler.definition.validate_runtime!
+      installer = Installer.install Bundler.root, Bundler.definition, opts
+      Bundler.load.cache if Bundler.app_cache.exist?
+
+      if Bundler.settings[:clean] && Bundler.settings[:path]
+        require "bundler/cli/clean"
+        Bundler::CLI::Clean.new(options).run
+      end
+
+      Bundler.ui.confirm "Bundle updated!"
+      Bundler::CLI::Common.output_without_groups_message
+      Bundler::CLI::Common.output_post_install_messages installer.post_install_messages
+    end
+  end
+end