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authorJari Vetoniemi <jari.vetoniemi@indooratlas.com>2020-03-16 18:49:26 +0900
committerJari Vetoniemi <jari.vetoniemi@indooratlas.com>2020-03-30 00:39:06 +0900
commitfcbf63e62c627deae76c1b8cb8c0876c536ed811 (patch)
tree64cb17de3f41a2b6fef2368028fbd00349946994 /jni/ruby/lib/optparse/version.rb
Fresh start
Diffstat (limited to 'jni/ruby/lib/optparse/version.rb')
-rw-r--r--jni/ruby/lib/optparse/version.rb70
1 files changed, 70 insertions, 0 deletions
diff --git a/jni/ruby/lib/optparse/version.rb b/jni/ruby/lib/optparse/version.rb
new file mode 100644
index 0000000..8525677
--- /dev/null
+++ b/jni/ruby/lib/optparse/version.rb
@@ -0,0 +1,70 @@
+# OptionParser internal utility
+
+class << OptionParser
+ def show_version(*pkgs)
+ progname = ARGV.options.program_name
+ result = false
+ show = proc do |klass, cname, version|
+ str = "#{progname}"
+ unless klass == ::Object and cname == :VERSION
+ version = version.join(".") if Array === version
+ str << ": #{klass}" unless klass == Object
+ str << " version #{version}"
+ end
+ [:Release, :RELEASE].find do |rel|
+ if klass.const_defined?(rel)
+ str << " (#{klass.const_get(rel)})"
+ end
+ end
+ puts str
+ result = true
+ end
+ if pkgs.size == 1 and pkgs[0] == "all"
+ self.search_const(::Object, /\AV(?:ERSION|ersion)\z/) do |klass, cname, version|
+ unless cname[1] == ?e and klass.const_defined?(:Version)
+ show.call(klass, cname.intern, version)
+ end
+ end
+ else
+ pkgs.each do |pkg|
+ begin
+ pkg = pkg.split(/::|\//).inject(::Object) {|m, c| m.const_get(c)}
+ v = case
+ when pkg.const_defined?(:Version)
+ pkg.const_get(n = :Version)
+ when pkg.const_defined?(:VERSION)
+ pkg.const_get(n = :VERSION)
+ else
+ n = nil
+ "unknown"
+ end
+ show.call(pkg, n, v)
+ rescue NameError
+ end
+ end
+ end
+ result
+ end
+
+ def each_const(path, base = ::Object)
+ path.split(/::|\//).inject(base) do |klass, name|
+ raise NameError, path unless Module === klass
+ klass.constants.grep(/#{name}/i) do |c|
+ klass.const_defined?(c) or next
+ klass.const_get(c)
+ end
+ end
+ end
+
+ def search_const(klass, name)
+ klasses = [klass]
+ while klass = klasses.shift
+ klass.constants.each do |cname|
+ klass.const_defined?(cname) or next
+ const = klass.const_get(cname)
+ yield klass, cname, const if name === cname
+ klasses << const if Module === const and const != ::Object
+ end
+ end
+ end
+end