add gem_helper.rb and it's corresponding macros %gem_unpack, %gem_build &1.108

gem_install for simplifying & streamlining ruby gem packaging.

1 files changed, 173 insertions, 0 deletions

diff --git a/gem_helper.rb b/gem_helper.rb
new file mode 100755
index 0000000..6661575
--- /dev/null
+++ b/gem_helper.rb
@@ -0,0 +1,173 @@
+#!/usr/bin/env ruby
+#--
+# Copyright 2010 Per Øyvind Karlsen <peroyvind@mandriva.org>
+# This program is free software. It may be redistributed and/or modified under
+# the terms of the LGPL version 2.1 (or later).
+#++
+
+require 'optparse'
+
+if ARGV[0] == "build" or ARGV[0] == "install"
+  require 'yaml'
+  require 'zlib'
+
+  filter = nil
+  opts = nil
+  keepcache = false
+  fixperms = false
+  gemdir = nil
+  dry_run = false
+  files = []
+  argv = ARGV[1..-1]
+  # Push this into some environment variables as the modified classes doesn't
+  # seem to be able to access our global variables.. </lameworkaround>
+  ENV['GEM_MODE'] = ARGV[0]
+  if ARGV[0] == "build"
+    opts = OptionParser.new("#{$0} <--filter PATTERN>")
+    opts.on("-f", "--filter PATTERN", "Filter pattern to use for gem files") do |val|
+      filter = val
+    end
+    opts.on("-j", "--jobs JOBS", "Number  of  jobs to run simultaneously.") do |val|
+      ENV['jobs'] = "-j"+val
+    end
+    opts.on("--dry-run", "Only show the files the gem will include") do
+      ARGV.delete("--dry-run")
+      dry_run = true
+    end
+  elsif ARGV[0] == "install"
+    opts = OptionParser.new("#{$0} <--keep-cache>")
+    opts.on("--keep-cache", "Don't delete gem copy from cache") do
+      ARGV.delete("--keep-cache")
+      keepcache = true
+    end
+    opts.on("--fix-permissions", "Force standard permissions for files installed") do
+      ARGV.delete("--fix-permissions")
+      fixperms = true
+    end    
+    opts.on("-i", "--install-dir GEMDIR", "Gem repository directory") do |val|
+      gemdir = val
+    end
+  end
+  while argv.length > 0
+    begin
+      opts.parse!(argv)
+    rescue OptionParser::InvalidOption => e
+      e.recover(argv)
+    end
+    argv.delete_at(0)
+  end
+
+  file_data = Zlib::GzipReader.open("metadata.gz")
+  header = YAML::load(file_data)
+  file_data.close()
+  body = header.instance_variable_get :@ivars
+
+  require 'rubygems'
+  spec = Gem::Specification.from_yaml(YAML.dump(header))
+
+  if ARGV[0] == "install"
+    system("gem %s %s.gem" % [ARGV.join(' '), spec.full_name])
+    if !keepcache
+      require 'fileutils'
+      FileUtils.rm_rf("%s/cache" % gemdir)
+    end
+    if fixperms
+      chmod = "chmod u+r,u+w,g-w,g+r,o+r -R %s" % gemdir
+      print "\nFixing permissions:\n\n%s\n" % chmod
+      system("%s" % chmod)
+      print "\n"
+    end
+  end
+
+  if body['extensions'].size > 0
+    require 'rubygems/ext'
+    module Gem::Ext
+      class Builder
+	def self.make(dest_path, results)
+	  make_program = ENV['make']
+	  unless make_program then
+	    make_program = (/mswin/ =~ RUBY_PLATFORM) ? 'nmake' : 'make'
+	  end
+	  cmd = make_program
+	  if ENV['GEM_MODE'] == "build"
+  	    cmd += " %s" % ENV['jobs']
+	  elsif ENV['GEM_MODE'] == "install"
+	    cmd += " DESTDIR='%s' install" % ENV['DESTDIR']
+	  end
+	  results << cmd
+	  results << `#{cmd} #{redirector}`
+
+	  raise Gem::ExtensionBuildError, "make failed:\n\n#{results}" unless
+	  $?.success?
+	end
+      end
+    end
+
+    require 'rubygems/installer'
+    module Gem
+      class Installer
+      	def initialize(spec, options={})
+	  @gem_dir = Dir.pwd
+      	  @spec = spec
+	end
+      end
+      class ConfigFile
+	def really_verbose
+	  true
+	end
+      end
+    end
+
+    unless dry_run
+      Gem::Installer.new(spec).build_extensions
+    else
+      for ext in body['extensions']
+	files.push(ext[0..ext.rindex("/")-1]+".so")
+      end
+    end
+
+    body['extensions'].clear()
+  end
+  if ARGV[0] == "build"
+    body['test_files'].clear()
+
+    # We don't want ext/ in require_paths, it will only contain content for
+    # building extensions which needs to be installed in sitearchdir anyways..
+    idx = 0
+    for i in 0..body['require_paths'].size()-1
+      if body['require_paths'][idx].match("^ext(/|$)")
+	body['require_paths'].delete_at(idx)
+      else
+	idx += 1
+      end
+    end
+
+    # We'll get rid of all the files we don't really need to install
+    idx = 0
+    for i in 0..body['files'].size()-1
+      if filter and body['files'][idx].match(filter)
+	match = true
+      else
+	match = false
+	for path in body['require_paths']
+	  if body['files'][idx].match("^%s/" % path)
+	    match = true
+	  end
+	end
+      end
+      if !match
+	body['files'].delete_at(idx)
+      else
+	idx += 1
+      end
+    end
+
+    spec = Gem::Specification.from_yaml(YAML.dump(header))
+    unless dry_run
+      Gem::Builder.new(spec).build
+    else
+      files.concat(spec.files)
+      print "%s\n" % files.join("\n")
+    end
+  end
+end