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-rw-r--r--tool/lib/bundled_gem.rb55
1 files changed, 55 insertions, 0 deletions
diff --git a/tool/lib/bundled_gem.rb b/tool/lib/bundled_gem.rb
new file mode 100644
index 0000000000..0b7d52b86a
--- /dev/null
+++ b/tool/lib/bundled_gem.rb
@@ -0,0 +1,55 @@
+require 'fileutils'
+require 'rubygems'
+require 'rubygems/package'
+
+# This library is used by "make extract-gems" to
+# unpack bundled gem files.
+
+module BundledGem
+ module_function
+
+ def unpack(file, *rest)
+ pkg = Gem::Package.new(file)
+ prepare_test(pkg.spec, *rest) {|dir| pkg.extract_files(dir)}
+ puts "Unpacked #{file}"
+ end
+
+ def copy(path, *rest)
+ spec = Gem::Specification.load(path)
+ path = File.dirname(path)
+ prepare_test(spec, *rest) do |dir|
+ FileUtils.rm_rf(dir)
+ files = spec.files.reject {|f| f.start_with?(".git")}
+ dirs = files.map {|f| File.dirname(f) if f.include?("/")}.uniq
+ FileUtils.mkdir_p(dirs.map {|d| d ? "#{dir}/#{d}" : dir}.sort_by {|d| d.count("/")})
+ files.each do |f|
+ File.copy_stream(File.join(path, f), File.join(dir, f))
+ end
+ end
+ puts "Copied #{path}"
+ end
+
+ def prepare_test(spec, dir = ".")
+ target = spec.full_name
+ Gem.ensure_gem_subdirectories(dir)
+ gem_dir = File.join(dir, "gems", target)
+ yield gem_dir
+ spec_dir = spec.extensions.empty? ? "specifications" : File.join("gems", target)
+ File.binwrite(File.join(dir, spec_dir, "#{target}.gemspec"), spec.to_ruby)
+ unless spec.extensions.empty?
+ spec.dependencies.clear
+ File.binwrite(File.join(dir, spec_dir, ".bundled.#{target}.gemspec"), spec.to_ruby)
+ end
+ if spec.bindir and spec.executables
+ bindir = File.join(dir, "bin")
+ Dir.mkdir(bindir) rescue nil
+ spec.executables.each do |exe|
+ File.open(File.join(bindir, exe), "wb", 0o777) {|f|
+ f.print "#!ruby\n",
+ %[load File.realpath("../gems/#{target}/#{spec.bindir}/#{exe}", __dir__)\n]
+ }
+ end
+ end
+ FileUtils.rm_rf(Dir.glob("#{gem_dir}/.git*"))
+ end
+end