3fb5d70a72
Substitue each Version.new and HeadVersion.new with Version.create to unify Version and HeadVersion instantiation among core code. Note that this does not relate to Mac::OS::Version class.
36 lines
799 B
Ruby
36 lines
799 B
Ruby
class EmacsRequirement < Requirement
|
|
fatal true
|
|
default_formula "emacs"
|
|
|
|
def initialize(tags)
|
|
@version = tags.shift if /\d+\.*\d*/ === tags.first
|
|
super
|
|
end
|
|
|
|
satisfy :build_env => false do
|
|
next false unless which "emacs"
|
|
next true unless @version
|
|
emacs_version = Utils.popen_read("emacs", "--batch", "--eval", "(princ emacs-version)")
|
|
Version.create(emacs_version) >= Version.create(@version)
|
|
end
|
|
|
|
env do
|
|
ENV.prepend_path "PATH", which("emacs").dirname
|
|
ENV["EMACS"] = "emacs"
|
|
end
|
|
|
|
def message
|
|
if @version
|
|
s = "Emacs #{@version} or later is required."
|
|
else
|
|
s = "Emacs is required."
|
|
end
|
|
s += super
|
|
s
|
|
end
|
|
|
|
def inspect
|
|
"#<#{self.class.name}: #{name.inspect} #{tags.inspect} version=#{@version.inspect}>"
|
|
end
|
|
end
|