ext/extmk.rb: colorize notes [Feature #13302]

* common.mk (build-ext): pass variables to colorize.

* ext/extmk.rb: colorize notes with tool/colorize.rb.

* tool/colorize.rb: extract from tool/generic_erb.rb.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58426 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

2 files changed, 46 insertions, 11 deletions

diff --git a/tool/colorize.rb b/tool/colorize.rb
new file mode 100644
index 0000000000..6b9f568020
--- /dev/null
+++ b/tool/colorize.rb
@@ -0,0 +1,41 @@
+class Colorize
+  def initialize(color = nil)
+    @colors = @reset = nil
+    if color or (color == nil && STDOUT.tty?)
+      if (/\A\e\[.*m\z/ =~ IO.popen("tput smso", "r", err: IO::NULL, &:read) rescue nil)
+        @beg = "\e["
+        @colors = (colors = ENV['TEST_COLORS']) ? Hash[colors.scan(/(\w+)=([^:\n]*)/)] : {}
+        @reset = "#{@beg}m"
+      end
+    end
+    self
+  end
+
+  DEFAULTS = {"pass"=>"32;1", "fail"=>"31;1", "skip"=>"33;1"}
+
+  def decorate(str, name)
+    if @colors and color = (@colors[name] || DEFAULTS[name])
+      "#{@beg}#{color}m#{str}#{@reset}"
+    else
+      str
+    end
+  end
+
+  def pass(str)
+    decorate(str, "pass")
+  end
+
+  def fail(str)
+    decorate(str, "fail")
+  end
+
+  def skip(str)
+    decorate(str, "skip")
+  end
+end
+
+if $0 == __FILE__
+  colorize = Colorize.new
+  col = ARGV.shift
+  ARGV.each {|str| puts colorize.decorate(str, col)}
+end
diff --git a/tool/generic_erb.rb b/tool/generic_erb.rb
index d08efe06c3..08077f2dbc 100644
--- a/tool/generic_erb.rb
+++ b/tool/generic_erb.rb
@@ -8,6 +8,7 @@ require 'optparse'
 require 'fileutils'
 $:.unshift(File.dirname(__FILE__))
 require 'vpath'
+require 'colorize'
 
 vpath = VPath.new
 timestamp = nil
@@ -25,17 +26,10 @@ opt = OptionParser.new do |o|
   vpath.def_options(o)
   o.order!(ARGV)
 end
-unchanged = "unchanged"
-updated = "updated"
-if color or (color == nil && STDOUT.tty?)
-  if (/\A\e\[.*m\z/ =~ IO.popen("tput smso", "r", err: IO::NULL, &:read) rescue nil)
-    beg = "\e["
-    colors = (colors = ENV['TEST_COLORS']) ? Hash[colors.scan(/(\w+)=([^:\n]*)/)] : {}
-    reset = "#{beg}m"
-    unchanged = "#{beg}#{colors["pass"] || "32;1"}m#{unchanged}#{reset}"
-    updated = "#{beg}#{colors["fail"] || "31;1"}m#{updated}#{reset}"
-  end
-end
+color = Colorize.new(color)
+unchanged = color.pass("unchanged")
+updated = color.fail("updated")
+
 template = ARGV.shift or abort opt.to_s
 erb = ERB.new(File.read(template), nil, '%-')
 erb.filename = template