Change some files

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

files/ruby/popen.rb

@@ -6,12 +6,18 @@ module Popen
   def popen(cmd, path=nil)
     unless cmd.is_a?(Array)
-      raise "System commands must be given as an array of strings"
+      raise RuntimeError, "System commands must be given as an array of strings"
     end
     path ||= Dir.pwd
-    vars = { "PWD" => path }
-    options = { chdir: path }
+
+    vars = {
+      "PWD" => path
+    }
+
+    options = {
+      chdir: path
+    }
     unless File.directory?(path)
       FileUtils.mkdir_p(path)
@@ -19,6 +25,7 @@ module Popen
     @cmd_output = ""
     @cmd_status = 0
+
     Open3.popen3(vars, *cmd, options) do |stdin, stdout, stderr, wait_thr|
       @cmd_output << stdout.read
       @cmd_output << stderr.read

files/ruby/regex.rb

@@ -19,14 +19,12 @@ module Gitlab
     end
     def archive_formats_regex
-      #|zip|tar|    tar.gz    |         tar.bz2         |
-      /(zip|tar|tar\.gz|tgz|gz|tar\.bz2|tbz|tbz2|tb2|bz2)/
+      /(zip|tar|7z|tar\.gz|tgz|gz|tar\.bz2|tbz|tbz2|tb2|bz2)/
     end
     def git_reference_regex
       # Valid git ref regex, see:
       # https://www.kernel.org/pub/software/scm/git/docs/git-check-ref-format.html
-
       %r{
         (?!
            (?# doesn't begins with)