1 files changed, 62 insertions, 0 deletions
diff --git a/spec/mspec/lib/mspec/helpers/fs.rb b/spec/mspec/lib/mspec/helpers/fs.rb
new file mode 100644
index 0000000000..ee33f5fec0
--- /dev/null
+++ b/spec/mspec/lib/mspec/helpers/fs.rb
@@ -0,0 +1,62 @@
+class Object
+  # Copies a file
+  def cp(source, dest)
+    File.open(dest, "w") do |d|
+      File.open(source, "r") do |s|
+        while data = s.read(1024)
+          d.write data
+        end
+      end
+    end
+  end
+
+  # Creates each directory in path that does not exist.
+  def mkdir_p(path)
+    parts = File.expand_path(path).split %r[/|\\]
+    name = parts.shift
+    parts.each do |part|
+      name = File.join name, part
+
+      if File.file? name
+        raise ArgumentError, "path component of #{path} is a file"
+      end
+
+      Dir.mkdir name unless File.directory? name
+    end
+  end
+
+  # Recursively removes all files and directories in +path+
+  # if +path+ is a directory. Removes the file if +path+ is
+  # a file.
+  def rm_r(*paths)
+    paths.each do |path|
+      path = File.expand_path path
+
+      prefix = SPEC_TEMP_DIR
+      unless path[0, prefix.size] == prefix
+        raise ArgumentError, "#{path} is not prefixed by #{prefix}"
+      end
+
+      # File.symlink? needs to be checked first as
+      # File.exist? returns false for dangling symlinks
+      if File.symlink? path
+        File.unlink path
+      elsif File.directory? path
+        Dir.entries(path).each { |x| rm_r "#{path}/#{x}" unless x =~ /^\.\.?$/ }
+        Dir.rmdir path
+      elsif File.exist? path
+        File.delete path
+      end
+    end
+  end
+
+  # Creates a file +name+. Creates the directory for +name+
+  # if it does not exist.
+  def touch(name, mode="w")
+    mkdir_p File.dirname(name)
+
+    File.open(name, mode) do |f|
+      yield f if block_given?
+    end
+  end
+end