Add gitlab-keys batch-add-keys

This command is intended to be called by the GitLab Rails code when
restoring an application backup.

CHANGELOG

 v1.8.4
   - Dont do import if repository exists
+  - Add `gitlab-keys batch-add-keys` subcommand for authorized_keys rebuilds
 
 v1.8.3
   - Add timeout option for repository import

bin/gitlab-keys

@@ -8,9 +8,11 @@ require_relative '../lib/gitlab_init'
 # Ex.
 #   /bin/gitlab-keys add-key key-782 "ssh-rsa AAAAx321..."
 #
+#   printf "key-782\tssh-rsa AAAAx321...\n" | /bin/gitlab-keys batch-add-keys
+#
 #   /bin/gitlab-keys rm-key key-23 "ssh-rsa AAAAx321..."
 #
-#   /bin/gitlab-keys clear"
+#   /bin/gitlab-keys clear
 #
 
 require File.join(ROOT_PATH, 'lib', 'gitlab_keys')

lib/gitlab_keys.rb

@@ -16,6 +16,7 @@ class GitlabKeys
   def exec
     case @command
     when 'add-key'; add_key
+    when 'batch-add-keys'; batch_add_keys
     when 'rm-key';  rm_key
     when 'clear';  clear
     else
@@ -34,6 +35,23 @@ class GitlabKeys
     true
   end
 
+  def batch_add_keys
+    open(auth_file, 'a') do |file|
+      stdin.each_line do |input|
+        tokens = input.strip.split("\t")
+        abort("#{$0}: invalid input #{input.inspect}") unless tokens.count == 2
+        key_id, public_key = tokens
+        $logger.info "Adding key #{key_id} => #{public_key.inspect}"
+        file.puts(key_line(key_id, public_key))
+      end
+    end
+    true
+  end
+
+  def stdin
+    $stdin
+  end
+
   def key_line(key_id, public_key)
     auth_line = "command=\"#{ROOT_PATH}/bin/gitlab-shell #{key_id}\",no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty #{public_key}"
   end

spec/gitlab_keys_spec.rb

 require_relative 'spec_helper'
 require_relative '../lib/gitlab_keys'
+require 'stringio'
 
 describe GitlabKeys do
   before do
@@ -39,6 +40,47 @@ describe GitlabKeys do
     end
   end
 
+  describe :batch_add_keys do
+    let(:gitlab_keys) { build_gitlab_keys('batch-add-keys') }
+    let(:fake_stdin) { StringIO.new("key-12\tssh-dsa ASDFASGADG\nkey-123\tssh-rsa GFDGDFSGSDFG\n", 'r') }
+    before do
+      create_authorized_keys_fixture
+      gitlab_keys.stub(stdin: fake_stdin)
+    end
+
+    it "adds lines at the end of the file" do
+      gitlab_keys.send :batch_add_keys
+      auth_line1 = "command=\"#{ROOT_PATH}/bin/gitlab-shell key-12\",no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty ssh-dsa ASDFASGADG"
+      auth_line2 = "command=\"#{ROOT_PATH}/bin/gitlab-shell key-123\",no-port-forwarding,no-X11-forwarding,no-agent-forwarding,no-pty ssh-rsa GFDGDFSGSDFG"
+      File.read(tmp_authorized_keys_path).should == "existing content\n#{auth_line1}\n#{auth_line2}\n"
+    end
+
+    context "with invalid input" do
+      let(:fake_stdin) { StringIO.new("key-12\tssh-dsa ASDFASGADG\nkey-123\tssh-rsa GFDGDFSGSDFG\nfoo\tbar\tbaz\n", 'r') }
+
+      it "aborts" do
+        gitlab_keys.should_receive(:abort)
+        gitlab_keys.send :batch_add_keys
+      end
+    end
+
+    context "without file writing" do
+      before do
+        gitlab_keys.should_receive(:open).and_yield(mock(:file, puts: nil))
+      end
+
+      it "should log an add-key event" do
+        $logger.should_receive(:info).with('Adding key key-12 => "ssh-dsa ASDFASGADG"')
+        $logger.should_receive(:info).with('Adding key key-123 => "ssh-rsa GFDGDFSGSDFG"')
+        gitlab_keys.send :batch_add_keys
+      end
+
+      it "should return true" do
+        gitlab_keys.send(:batch_add_keys).should be_true
+      end
+    end
+  end
+
   describe :rm_key do
     let(:gitlab_keys) { build_gitlab_keys('rm-key', 'key-741', 'ssh-rsa AAAAB3NzaDAxx2E') }