diff options
Diffstat (limited to 'lib/rubygems/installer.rb')
| -rw-r--r-- | lib/rubygems/installer.rb | 31 |
1 files changed, 13 insertions, 18 deletions
diff --git a/lib/rubygems/installer.rb b/lib/rubygems/installer.rb index 37264103b4..44bf2f8903 100644 --- a/lib/rubygems/installer.rb +++ b/lib/rubygems/installer.rb @@ -71,6 +71,8 @@ class Gem::Installer end + ENV_PATHS = %w[/usr/bin/env /bin/env] + ## # Constructs an Installer instance that will install the gem located at # +gem+. +options+ is a Hash with the following keys: @@ -98,12 +100,7 @@ class Gem::Installer :source_index => Gem.source_index, }.merge options - if @env_shebang = options[:env_shebang] - unless File.executable?(shebang = "/usr/bin/env") - shebang = "/bin/env" - end - @env_shebang = shebang - end + @env_shebang = options[:env_shebang] @force = options[:force] gem_home = options[:install_dir] @gem_home = Pathname.new(gem_home).expand_path @@ -392,25 +389,23 @@ class Gem::Installer # necessary. def shebang(bin_file_name) - ruby_name = Gem::ConfigMap[:ruby_install_name] unless @env_shebang + ruby_name = Gem::ConfigMap[:ruby_install_name] if @env_shebang path = File.join @gem_dir, @spec.bindir, bin_file_name first_line = File.open(path, "rb") {|file| file.gets} if /\A#!/ =~ first_line then # Preserve extra words on shebang line, like "-w". Thanks RPA. - shebang = first_line.sub(/\A\#!.*?ruby\S*(?=\s*(\S+))/, "#!#{Gem.ruby}") + shebang = first_line.sub(/\A\#!.*?ruby\S*(?=(\s+\S+))/, "#!#{Gem.ruby}") + opts = $1 shebang.strip! # Avoid nasty ^M issues. - if ruby_name and $1 - %{#!/bin/sh\n'exec' '#{ruby_name}' '-x' "$0" "$@"\n#{shebang}} - else - shebang - end + end + if !ruby_name + "#!#{Gem.ruby}#{opts}" + elsif opts + %{#!/bin/sh\n'exec' #{ruby_name.dump} '-x' "$0" "$@"\n#{shebang}} else # Create a plain shebang line. - if ruby_name - "#!#@env_shebang #{ruby_name}" - else - "#!#{Gem.ruby}" - end + @env_path ||= ENV_PATHS.find {|path| File.executable?(path)} + "#!#{@env_path} #{ruby_name}" end end |