GitLab steht aufgrund wichtiger Wartungsarbeiten am Montag, den 8. März, zwischen 17:00 und 19:00 Uhr nicht zur Verfügung.

Commit 42e30a50 authored by Rémy Coutable's avatar Rémy Coutable

Accept blocks for `.desc` and `.condition` slash commands DSL

Also, pass options as instance variables, making the DSL more
user-friendly / natural.
Signed-off-by: default avatarRémy Coutable <remy@rymai.me>
parent 65349c22
......@@ -26,25 +26,23 @@ def extractor(opts = {})
Gitlab::SlashCommands::Extractor.new(self.class.command_names(opts))
end
desc ->(opts) { "Close this #{opts[:noteable].to_ability_name.humanize(capitalize: false)}" }
condition ->(opts) do
opts[:noteable] &&
opts[:noteable].open? &&
opts[:current_user] &&
opts[:project] &&
opts[:current_user].can?(:"update_#{opts[:noteable].to_ability_name}", opts[:project])
desc do
"Close this #{noteable.to_ability_name.humanize(capitalize: false)}"
end
condition do
noteable.open? &&
current_user.can?(:"update_#{noteable.to_ability_name}", project)
end
command :close do
@updates[:state_event] = 'close'
end
desc ->(opts) { "Reopen this #{opts[:noteable].to_ability_name.humanize(capitalize: false)}" }
condition ->(opts) do
opts[:noteable] &&
opts[:noteable].closed? &&
opts[:current_user] &&
opts[:project] &&
opts[:current_user].can?(:"update_#{opts[:noteable].to_ability_name}", opts[:project])
desc do
"Reopen this #{noteable.to_ability_name.humanize(capitalize: false)}"
end
condition do
noteable.closed? &&
current_user.can?(:"update_#{noteable.to_ability_name}", project)
end
command :open, :reopen do
@updates[:state_event] = 'reopen'
......@@ -52,12 +50,9 @@ def extractor(opts = {})
desc 'Change title'
params '<New title>'
condition ->(opts) do
opts[:noteable] &&
opts[:noteable].persisted? &&
opts[:current_user] &&
opts[:project] &&
opts[:current_user].can?(:"update_#{opts[:noteable].to_ability_name}", opts[:project])
condition do
noteable.persisted? &&
current_user.can?(:"update_#{noteable.to_ability_name}", project)
end
command :title do |title_param|
@updates[:title] = title_param
......@@ -65,11 +60,8 @@ def extractor(opts = {})
desc 'Assign'
params '@user'
condition ->(opts) do
opts[:noteable] &&
opts[:current_user] &&
opts[:project] &&
opts[:current_user].can?(:"admin_#{opts[:noteable].to_ability_name}", opts[:project])
condition do
current_user.can?(:"admin_#{noteable.to_ability_name}", project)
end
command :assign, :reassign do |assignee_param|
user = extract_references(assignee_param, :user).first
......@@ -79,12 +71,9 @@ def extractor(opts = {})
end
desc 'Remove assignee'
condition ->(opts) do
opts[:noteable] &&
opts[:noteable].assignee_id? &&
opts[:current_user] &&
opts[:project] &&
opts[:current_user].can?(:"admin_#{opts[:noteable].to_ability_name}", opts[:project])
condition do
noteable.assignee_id? &&
current_user.can?(:"admin_#{noteable.to_ability_name}", project)
end
command :unassign, :remove_assignee do
@updates[:assignee_id] = nil
......@@ -92,12 +81,9 @@ def extractor(opts = {})
desc 'Set milestone'
params '%"milestone"'
condition ->(opts) do
opts[:noteable] &&
opts[:current_user] &&
opts[:project] &&
opts[:current_user].can?(:"admin_#{opts[:noteable].to_ability_name}", opts[:project]) &&
opts[:project].milestones.active.any?
condition do
current_user.can?(:"admin_#{noteable.to_ability_name}", project) &&
project.milestones.active.any?
end
command :milestone do |milestone_param|
milestone = extract_references(milestone_param, :milestone).first
......@@ -107,12 +93,9 @@ def extractor(opts = {})
end
desc 'Remove milestone'
condition ->(opts) do
opts[:noteable] &&
opts[:noteable].milestone_id? &&
opts[:current_user] &&
opts[:project] &&
opts[:current_user].can?(:"admin_#{opts[:noteable].to_ability_name}", opts[:project])
condition do
noteable.milestone_id? &&
current_user.can?(:"admin_#{noteable.to_ability_name}", project)
end
command :clear_milestone, :remove_milestone do
@updates[:milestone_id] = nil
......@@ -120,12 +103,9 @@ def extractor(opts = {})
desc 'Add label(s)'
params '~label1 ~"label 2"'
condition ->(opts) do
opts[:noteable] &&
opts[:current_user] &&
opts[:project] &&
opts[:current_user].can?(:"admin_#{opts[:noteable].to_ability_name}", opts[:project]) &&
opts[:project].labels.any?
condition do
current_user.can?(:"admin_#{noteable.to_ability_name}", project) &&
project.labels.any?
end
command :label, :labels do |labels_param|
label_ids = find_label_ids(labels_param)
......@@ -136,12 +116,9 @@ def extractor(opts = {})
desc 'Remove label(s)'
params '~label1 ~"label 2"'
condition ->(opts) do
opts[:noteable] &&
opts[:noteable].labels.any? &&
opts[:current_user] &&
opts[:project] &&
opts[:current_user].can?(:"admin_#{opts[:noteable].to_ability_name}", opts[:project])
condition do
noteable.labels.any? &&
current_user.can?(:"admin_#{noteable.to_ability_name}", project)
end
command :unlabel, :remove_label, :remove_labels do |labels_param|
label_ids = find_label_ids(labels_param)
......@@ -151,55 +128,46 @@ def extractor(opts = {})
end
desc 'Remove all labels'
condition ->(opts) do
opts[:noteable] &&
opts[:noteable].labels.any? &&
opts[:current_user] &&
opts[:project] &&
opts[:current_user].can?(:"admin_#{opts[:noteable].to_ability_name}", opts[:project])
condition do
noteable.labels.any? &&
current_user.can?(:"admin_#{noteable.to_ability_name}", project)
end
command :clear_labels, :clear_label do
@updates[:label_ids] = []
end
desc 'Add a todo'
condition ->(opts) do
opts[:noteable] &&
opts[:noteable].persisted? &&
opts[:current_user] &&
!TodosFinder.new(opts[:current_user]).execute.exists?(target: opts[:noteable])
condition do
noteable.persisted? &&
current_user &&
!TodosFinder.new(current_user).execute.exists?(target: noteable)
end
command :todo do
@updates[:todo_event] = 'add'
end
desc 'Mark todo as done'
condition ->(opts) do
opts[:noteable] &&
opts[:current_user] &&
TodosFinder.new(opts[:current_user]).execute.exists?(target: opts[:noteable])
condition do
current_user &&
TodosFinder.new(current_user).execute.exists?(target: noteable)
end
command :done do
@updates[:todo_event] = 'done'
end
desc 'Subscribe'
condition ->(opts) do
opts[:noteable] &&
opts[:current_user] &&
opts[:noteable].persisted? &&
!opts[:noteable].subscribed?(opts[:current_user])
condition do
noteable.persisted? &&
!noteable.subscribed?(current_user)
end
command :subscribe do
@updates[:subscription_event] = 'subscribe'
end
desc 'Unsubscribe'
condition ->(opts) do
opts[:noteable] &&
opts[:current_user] &&
opts[:noteable].persisted? &&
opts[:noteable].subscribed?(opts[:current_user])
condition do
noteable.persisted? &&
noteable.subscribed?(current_user)
end
command :unsubscribe do
@updates[:subscription_event] = 'unsubscribe'
......@@ -207,12 +175,9 @@ def extractor(opts = {})
desc 'Set due date'
params 'a date in natural language'
condition ->(opts) do
opts[:noteable] &&
opts[:noteable].respond_to?(:due_date) &&
opts[:current_user] &&
opts[:project] &&
opts[:current_user].can?(:"update_#{opts[:noteable].to_ability_name}", opts[:project])
condition do
noteable.respond_to?(:due_date) &&
current_user.can?(:"update_#{noteable.to_ability_name}", project)
end
command :due_date, :due do |due_date_param|
due_date = Chronic.parse(due_date_param).try(:to_date)
......@@ -221,13 +186,10 @@ def extractor(opts = {})
end
desc 'Remove due date'
condition ->(opts) do
opts[:noteable] &&
opts[:noteable].respond_to?(:due_date) &&
opts[:noteable].due_date? &&
opts[:current_user] &&
opts[:project] &&
opts[:current_user].can?(:"update_#{opts[:noteable].to_ability_name}", opts[:project])
condition do
noteable.respond_to?(:due_date) &&
noteable.due_date? &&
current_user.can?(:"update_#{noteable.to_ability_name}", project)
end
command :clear_due_date do
@updates[:due_date] = nil
......@@ -236,10 +198,7 @@ def extractor(opts = {})
# This is a dummy command, so that it appears in the autocomplete commands
desc 'CC'
params '@user'
noop true
command :cc do
return
end
command :cc, noop: true
def find_label_ids(labels_param)
extract_references(labels_param, :label).map(&:id)
......
......@@ -8,20 +8,27 @@ module Dsl
end
module ClassMethods
# This method is used to generate the autocompletion menu
# It returns no-op slash commands (such as `/cc`)
def command_definitions(opts = {})
@command_definitions.map do |cmd_def|
next if cmd_def[:cond_lambda] && !cmd_def[:cond_lambda].call(opts)
context = OpenStruct.new(opts)
next if cmd_def[:cond_block] && !context.instance_exec(&cmd_def[:cond_block])
cmd_def = cmd_def.dup
if cmd_def[:description].present? && cmd_def[:description].respond_to?(:call)
cmd_def[:description] = cmd_def[:description].call(opts) rescue ''
cmd_def[:description] = context.instance_exec(&cmd_def[:description]) rescue ''
end
cmd_def
end.compact
end
# This method is used to generate a list of valid commands in the current
# context of `opts`.
# It excludes no-op slash commands (such as `/cc`).
# This list can then be given to `Gitlab::SlashCommands::Extractor`.
def command_names(opts = {})
command_definitions(opts).flat_map do |command_definition|
next if command_definition[:noop]
......@@ -30,59 +37,88 @@ def command_names(opts = {})
end.compact
end
# Allows to give a description to the next slash command
def desc(text)
@description = text
# Allows to give a description to the next slash command.
# This description is shown in the autocomplete menu.
# It accepts a block that will be evaluated with the context given to
# `.command_definitions` or `.command_names`.
#
# Example:
#
# desc do
# "This is a dynamic description for #{noteable.to_ability_name}"
# end
# command :command_key do |arguments|
# # Awesome code block
# end
def desc(text = '', &block)
@description = block_given? ? block : text
end
# Allows to define params for the next slash command
# Allows to define params for the next slash command.
# These params are shown in the autocomplete menu.
#
# Example:
#
# params "~label ~label2"
# command :command_key do |arguments|
# # Awesome code block
# end
def params(*params)
@params = params
end
# Allows to define if a command is a no-op, but should appear in autocomplete
def noop(noop)
@noop = noop
end
# Allows to define if a lambda to conditionally return an action
def condition(cond_lambda)
@cond_lambda = cond_lambda
end
# Registers a new command which is recognizeable
# from body of email or comment.
# Allows to define conditions that must be met in order for the command
# to be returned by `.command_names` & `.command_definitions`.
# It accepts a block that will be evaluated with the context given to
# `.command_definitions`, `.command_names`, and the actual command method.
#
# Example:
#
# condition do
# project.public?
# end
# command :command_key do |arguments|
# # Awesome code block
# end
def condition(&block)
@cond_block = block
end
# Registers a new command which is recognizeable from body of email or
# comment.
# It accepts aliases and takes a block.
#
# Example:
#
# command :my_command, :alias_for_my_command do |arguments|
# # Awesome code block
# end
def command(*command_names, &block)
opts = command_names.extract_options!
command_name, *aliases = command_names
proxy_method_name = "__#{command_name}__"
# This proxy method is needed because calling `return` from inside a
# block/proc, causes a `return` from the enclosing method or lambda,
# otherwise a LocalJumpError error is raised.
define_method(proxy_method_name, &block)
if block_given?
# This proxy method is needed because calling `return` from inside a
# block/proc, causes a `return` from the enclosing method or lambda,
# otherwise a LocalJumpError error is raised.
define_method(proxy_method_name, &block)
define_method(command_name) do |*args|
unless @cond_lambda.nil? || @cond_lambda.call(project: project, current_user: current_user, noteable: noteable)
return
end
define_method(command_name) do |*args|
return if @cond_block && !instance_exec(&@cond_block)
proxy_method = method(proxy_method_name)
proxy_method = method(proxy_method_name)
if proxy_method.arity == -1 || proxy_method.arity == args.size
instance_exec(*args, &proxy_method)
if proxy_method.arity == -1 || proxy_method.arity == args.size
instance_exec(*args, &proxy_method)
end
end
end
private command_name
aliases.each do |alias_command|
alias_method alias_command, command_name
private alias_command
private command_name
aliases.each do |alias_command|
alias_method alias_command, command_name
private alias_command
end
end
command_definition = {
......@@ -91,14 +127,13 @@ def command(*command_names, &block)
description: @description || '',
params: @params || []
}
command_definition[:noop] = @noop unless @noop.nil?
command_definition[:cond_lambda] = @cond_lambda unless @cond_lambda.nil?
command_definition[:noop] = opts[:noop] || false
command_definition[:cond_block] = @cond_block
@command_definitions << command_definition
@description = nil
@params = nil
@noop = nil
@cond_lambda = nil
@cond_block = nil
end
end
end
......
require 'spec_helper'
describe Gitlab::SlashCommands::Dsl do
COND_LAMBDA = ->(opts) { opts[:project] == 'foo' }
before :all do
DummyClass = Class.new do
DummyClass = Struct.new(:project) do
include Gitlab::SlashCommands::Dsl
desc 'A command with no args'
......@@ -21,20 +20,21 @@
arg1
end
desc ->(opts) { "A dynamic description for #{opts.fetch(:noteable)}" }
desc do
"A dynamic description for #{noteable.upcase}"
end
params 'The first argument', 'The second argument'
command :two_args do |arg1, arg2|
[arg1, arg2]
end
noop true
command :cc do |*args|
args
end
command :cc, noop: true
condition COND_LAMBDA
command :cond_action do |*args|
args
condition do
project == 'foo'
end
command :cond_action do |arg|
arg
end
command :wildcard do |*args|
......@@ -42,17 +42,16 @@
end
end
end
let(:dummy) { DummyClass.new }
describe '.command_definitions' do
let(:base_expected) do
[
{ name: :no_args, aliases: [:none], description: 'A command with no args', params: [] },
{ name: :returning, aliases: [], description: 'A command returning a value', params: [] },
{ name: :one_arg, aliases: [:once, :first], description: '', params: ['The first argument'] },
{ name: :two_args, aliases: [], description: '', params: ['The first argument', 'The second argument'] },
{ name: :cc, aliases: [], description: '', params: [], noop: true },
{ name: :wildcard, aliases: [], description: '', params: [] }
{ name: :no_args, aliases: [:none], description: 'A command with no args', params: [], noop: false, cond_block: nil },
{ name: :returning, aliases: [], description: 'A command returning a value', params: [], noop: false, cond_block: nil },
{ name: :one_arg, aliases: [:once, :first], description: '', params: ['The first argument'], noop: false, cond_block: nil },
{ name: :two_args, aliases: [], description: '', params: ['The first argument', 'The second argument'], noop: false, cond_block: nil },
{ name: :cc, aliases: [], description: '', params: [], noop: true, cond_block: nil },
{ name: :wildcard, aliases: [], description: '', params: [], noop: false, cond_block: nil}
]
end
......@@ -62,7 +61,7 @@
context 'with options passed' do
context 'when condition is met' do
let(:expected) { base_expected << { name: :cond_action, aliases: [], description: '', params: [], cond_lambda: COND_LAMBDA } }
let(:expected) { base_expected << { name: :cond_action, aliases: [], description: '', params: [], noop: false, cond_block: a_kind_of(Proc) } }
it 'returns an array with commands definitions' do
expect(DummyClass.command_definitions(project: 'foo')).to match_array expected
......@@ -77,7 +76,7 @@
context 'when description can be generated dynamically' do
it 'returns an array with commands definitions with dynamic descriptions' do
base_expected[3][:description] = 'A dynamic description for merge request'
base_expected[3][:description] = 'A dynamic description for MERGE REQUEST'
expect(DummyClass.command_definitions(noteable: 'merge request')).to match_array base_expected
end
......@@ -114,6 +113,8 @@
end
end
let(:dummy) { DummyClass.new(nil) }
describe 'command with no args' do
context 'called with no args' do
it 'succeeds' do
......@@ -146,6 +147,28 @@
end
end
describe 'noop command' do
it 'is not meant to be called directly' do
expect { dummy.__send__(:cc) }.to raise_error(NoMethodError)
end
end
describe 'command with condition' do
context 'when condition is not met' do
it 'returns nil' do
expect(dummy.__send__(:cond_action)).to be_nil
end
end
context 'when condition is met' do
let(:dummy) { DummyClass.new('foo') }
it 'succeeds' do
expect(dummy.__send__(:cond_action, 42)).to eq 42
end
end
end
describe 'command with wildcard' do
context 'called with no args' do
it 'succeeds' do
......
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