- move ruby macros and rpm-rubyprov package here, epoch 1 for upgrading

[packages/rpm-build-macros.git] / gem_helper.rb

diff --git a/gem_helper.rb b/gem_helper.rb
new file mode 100755 (executable)
index 0000000..6457a7a
--- /dev/null
+++ b/gem_helper.rb
@@ -0,0 +1,197 @@
+#!/usr/bin/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'
+require 'rubygems'
+
+# Write the .gemspec specification (in Ruby)
+def writespec(spec)
+       file_name = spec.full_name.untaint + '.gemspec'
+       File.open(file_name, "w") do |file|
+               file.puts spec.to_ruby_for_cache
+       end
+       print "Wrote: %s\n" % file_name
+end
+
+# make gemspec self-contained
+if ARGV[0] == "spec-dump"
+       spec = eval(File.read(ARGV[1]))
+       writespec(spec)
+       exit(0)
+end
+
+if ARGV[0] == "build" or ARGV[0] == "install" or ARGV[0] == "spec"
+  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") {|io| io.read}
+  header = YAML::load(file_data)
+  body = {}
+  # I don't know any better.. :/
+  header.instance_variables.each do |iv|
+         body[iv.to_s.sub(/^@/,'')] = header.instance_variable_get(iv)
+  end
+
+  spec = Gem::Specification.from_yaml(YAML.dump(header))
+
+  if ARGV[0] == "spec"
+    writespec(spec)
+    exit(0)
+  end
+
+  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