140 lines
4.1 KiB
Ruby
140 lines
4.1 KiB
Ruby
module Gitlab
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module SlashCommands
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module Dsl
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extend ActiveSupport::Concern
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included do
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cattr_accessor :command_definitions, instance_accessor: false do
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[]
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end
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cattr_accessor :command_definitions_by_name, instance_accessor: false do
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{}
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end
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end
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class_methods do
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# Allows to give a description to the next slash command.
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# This description is shown in the autocomplete menu.
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# It accepts a block that will be evaluated with the context given to
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# `CommandDefintion#to_h`.
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#
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# Example:
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#
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# desc do
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# "This is a dynamic description for #{noteable.to_ability_name}"
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# end
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# command :command_key do |arguments|
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# # Awesome code block
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# end
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def desc(text = '', &block)
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@description = block_given? ? block : text
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end
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# Allows to define params for the next slash command.
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# These params are shown in the autocomplete menu.
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#
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# Example:
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#
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# params "~label ~label2"
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# command :command_key do |arguments|
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# # Awesome code block
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# end
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def params(*params, &block)
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@params = block_given? ? block : params
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end
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# Allows to give an explanation of what the command will do when
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# executed. This explanation is shown when rendering the Markdown
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# preview.
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#
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# Example:
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#
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# explanation do |arguments|
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# "Adds label(s) #{arguments.join(' ')}"
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# end
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# command :command_key do |arguments|
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# # Awesome code block
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# end
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def explanation(text = '', &block)
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@explanation = block_given? ? block : text
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end
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# Allows to define conditions that must be met in order for the command
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# to be returned by `.command_names` & `.command_definitions`.
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# It accepts a block that will be evaluated with the context given to
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# `CommandDefintion#to_h`.
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#
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# Example:
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#
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# condition do
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# project.public?
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# end
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# command :command_key do |arguments|
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# # Awesome code block
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# end
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def condition(&block)
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@condition_block = block
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end
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# Allows to perform initial parsing of parameters. The result is passed
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# both to `command` and `explanation` blocks, instead of the raw
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# parameters.
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# It accepts a block that will be evaluated with the context given to
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# `CommandDefintion#to_h`.
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#
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# Example:
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#
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# parse_params do |raw|
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# raw.strip
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# end
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# command :command_key do |parsed|
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# # Awesome code block
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# end
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def parse_params(&block)
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@parse_params_block = block
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end
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# Registers a new command which is recognizeable from body of email or
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# comment.
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# It accepts aliases and takes a block.
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#
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# Example:
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#
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# command :my_command, :alias_for_my_command do |arguments|
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# # Awesome code block
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# end
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def command(*command_names, &block)
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name, *aliases = command_names
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definition = CommandDefinition.new(
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name,
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aliases: aliases,
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description: @description,
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explanation: @explanation,
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params: @params,
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condition_block: @condition_block,
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parse_params_block: @parse_params_block,
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action_block: block
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)
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self.command_definitions << definition
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definition.all_names.each do |name|
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self.command_definitions_by_name[name] = definition
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end
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@description = nil
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@explanation = nil
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@params = nil
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@condition_block = nil
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@parse_params_block = nil
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end
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def definition_by_name(name)
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command_definitions_by_name[name.to_sym]
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end
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end
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end
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end
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end
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