The TaskManager module is a mixin for managing tasks.
- []
- clear
- create_rule
- current_scope
- define_task
- enhance_with_matching_rule
- in_namespace
- intern
- lookup
- new
- resolve_args
- synthesize_file_task
- tasks
- tasks_in_scope
[RW] | last_description | Track the last comment made in the Rakefile. |
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# File lib/rake.rb, line 1690 1690: def initialize 1691: super 1692: @tasks = Hash.new 1693: @rules = Array.new 1694: @scope = Array.new 1695: @last_description = nil 1696: end
Find a matching task for task_name.
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# File lib/rake.rb, line 1724 1724: def [](task_name, scopes=nil) 1725: task_name = task_name.to_s 1726: self.lookup(task_name, scopes) or 1727: enhance_with_matching_rule(task_name) or 1728: synthesize_file_task(task_name) or 1729: fail "Don't know how to build task '#{task_name}'" 1730: end
Clear all tasks in this application.
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# File lib/rake.rb, line 1833 1833: def clear 1834: @tasks.clear 1835: @rules.clear 1836: end
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# File lib/rake.rb, line 1698 1698: def create_rule(*args, &block) 1699: pattern, arg_names, deps = resolve_args(args) 1700: pattern = Regexp.new(Regexp.quote(pattern) + '$') if String === pattern 1701: @rules << [pattern, deps, block] 1702: end
Return the list of scope names currently active in the task manager.
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# File lib/rake.rb, line 1873 1873: def current_scope 1874: @scope.dup 1875: end
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# File lib/rake.rb, line 1704 1704: def define_task(task_class, *args, &block) 1705: task_name, arg_names, deps = resolve_args(args) 1706: task_name = task_class.scope_name(@scope, task_name) 1707: deps = [deps] unless deps.respond_to?(:to_ary) 1708: deps = deps.collect {|d| d.to_s } 1709: task = intern(task_class, task_name) 1710: task.set_arg_names(arg_names) unless arg_names.empty? 1711: task.add_description(@last_description) 1712: @last_description = nil 1713: task.enhance(deps, &block) 1714: task 1715: end
If a rule can be found that matches the task name, enhance the task with the prerequisites and actions from the rule. Set the source attribute of the task appropriately for the rule. Return the enhanced task or nil of no rule was found.
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# File lib/rake.rb, line 1803 1803: def enhance_with_matching_rule(task_name, level=0) 1804: fail Rake::RuleRecursionOverflowError, 1805: "Rule Recursion Too Deep" if level >= 16 1806: @rules.each do |pattern, extensions, block| 1807: if md = pattern.match(task_name) 1808: task = attempt_rule(task_name, extensions, block, level) 1809: return task if task 1810: end 1811: end 1812: nil 1813: rescue Rake::RuleRecursionOverflowError => ex 1814: ex.add_target(task_name) 1815: fail ex 1816: end
Evaluate the block in a nested namespace named name. Create an anonymous namespace if name is nil.
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# File lib/rake.rb, line 1879 1879: def in_namespace(name) 1880: name ||= generate_name 1881: @scope.push(name) 1882: ns = NameSpace.new(self, @scope) 1883: yield(ns) 1884: ns 1885: ensure 1886: @scope.pop 1887: end
Lookup a task. Return an existing task if found, otherwise create a task of the current type.
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# File lib/rake.rb, line 1719 1719: def intern(task_class, task_name) 1720: @tasks[task_name.to_s] ||= task_class.new(task_name, self) 1721: end
Lookup a task, using scope and the scope hints in the task name. This method performs straight lookups without trying to synthesize file tasks or rules. Special scope names (e.g. ’^’) are recognized. If no scope argument is supplied, use the current scope. Return nil if the task cannot be found.
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# File lib/rake.rb, line 1843 1843: def lookup(task_name, initial_scope=nil) 1844: initial_scope ||= @scope 1845: task_name = task_name.to_s 1846: if task_name =~ /^rake:/ 1847: scopes = [] 1848: task_name = task_name.sub(/^rake:/, '') 1849: elsif task_name =~ /^(\^+)/ 1850: scopes = initial_scope[0, initial_scope.size - $1.size] 1851: task_name = task_name.sub(/^(\^+)/, '') 1852: else 1853: scopes = initial_scope 1854: end 1855: lookup_in_scope(task_name, scopes) 1856: end
Resolve the arguments for a task/rule. Returns a triplet of [task_name, arg_name_list, prerequisites].
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# File lib/rake.rb, line 1739 1739: def resolve_args(args) 1740: if args.last.is_a?(Hash) 1741: deps = args.pop 1742: resolve_args_with_dependencies(args, deps) 1743: else 1744: resolve_args_without_dependencies(args) 1745: end 1746: end
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# File lib/rake.rb, line 1732 1732: def synthesize_file_task(task_name) 1733: return nil unless File.exist?(task_name) 1734: define_task(Rake::FileTask, task_name) 1735: end
List of all defined tasks in this application.
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# File lib/rake.rb, line 1819 1819: def tasks 1820: @tasks.values.sort_by { |t| t.name } 1821: end
List of all the tasks defined in the given scope (and its sub-scopes).
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# File lib/rake.rb, line 1825 1825: def tasks_in_scope(scope) 1826: prefix = scope.join(":") 1827: tasks.select { |t| 1828: /^#{prefix}:/ =~ t.name 1829: } 1830: end