-
Notifications
You must be signed in to change notification settings - Fork 24
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Add script to fix shebangs when using --enable-load-relative
- Loading branch information
Showing
2 changed files
with
42 additions
and
0 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,39 @@ | ||
require 'rbconfig' | ||
|
||
bindir = RbConfig::CONFIG["bindir"] | ||
|
||
FIRST_LINE = "#!/bin/sh\n" | ||
RUBY_SHEBANG = %r{^#!/usr/bin/env ruby$} | ||
RUBYGEMS_LINE = /This file was generated by RubyGems/ | ||
|
||
Dir.glob("#{bindir}/*") do |file| | ||
exe = "bin/#{File.basename(file)}" | ||
|
||
if File.binread(file, FIRST_LINE.bytesize) == FIRST_LINE | ||
puts "\nFound load-relative prolog in #{exe}" | ||
contents = File.binread(file) | ||
rubygems_line = contents.lines.index { |line| RUBYGEMS_LINE =~ line } | ||
|
||
if !rubygems_line | ||
puts "No RubyGems line in #{exe}, skipping it" | ||
elsif rubygems_line == 2 | ||
# RubyGems expects RUBYGEMS_LINE to match the 3rd line | ||
# https://github.com/rubygems/rubygems/blob/6d7fe84753/lib/rubygems/installer.rb#L220 | ||
# Otherwise, it will consider the executable to be conflicting and ask whether to override, | ||
# and that results in an error when STDIN is not interactive | ||
else | ||
puts "The RubyGems line in #{exe} is not the 3rd line (but line #{rubygems_line+1}), fixing it" | ||
|
||
index = contents =~ RUBY_SHEBANG | ||
raise "Could not find ruby shebang in:\n#{contents}" unless index | ||
contents = contents[index..-1] | ||
|
||
rubygems_line = contents.lines.index { |line| RUBYGEMS_LINE =~ line } | ||
unless rubygems_line == 2 | ||
raise "The RubyGems line is still not 3rd in #{exe}:\n#{contents}" | ||
end | ||
|
||
File.binwrite(file, contents) | ||
end | ||
end | ||
end |