Yukihiro said:
In message "rbconfig suggestion: ruby_apps"
|My particular reason is for a script that switches symlinks from
|ruby->ruby-1.7.3 to ruby->1.8.1p3 and so on.
./configure --program-suffix=-1.8.1p3 will do.
matz.
That's exactly what I do whenever a new snapshot comes out. Then
with my little "switchruby" script I can change what my symlinks named
ruby, irb, and so on point to. And change back again. Sample session:
# switchruby 1.7.3
ruby -> ruby-1.7.3
irb -> irb-1.7.3
erb -> erb-1.7.3
# switchruby
Current versions are:
ruby -> ruby-1.7.3
irb -> irb-1.7.3
erb -> erb-1.7.3
rdoc -> rdoc-1.8.1p3
testrb -> testrb-1.8.1p3
Choices are: 1.7.3 1.8.0 1.8.1-22Nov03 1.8.1p3
# switchruby 1.8.1p3
ruby -> ruby-1.8.1p3
irb -> irb-1.8.1p3
erb -> erb-1.8.1p3
rdoc -> rdoc-1.8.1p3
testrb -> testrb-1.8.1p3
Of course, switching to 1.8.0 doesn't work so well because:
# ruby -r rbconfig -e 1
/usr/local/lib/ruby/1.8/i686-linux/rbconfig.rb:7: ruby lib version
(1.8.1) doesn't match executable version (1.8.0) (RuntimeError)
I guess I could swap the lib dirs as well, but that's getting to be too
much work, and besides I'm really more interested in switching between
different previews or cvs of the same "teeny" version.
== switchruby ==
#!/usr/local/bin/ruby-1.7.3
require 'rbconfig'
ext = ARGV[0]
Dir.chdir Config::CONFIG["bindir"]
exts = []
Dir["ruby*"].grep(/^ruby-(.*)/) { |f| exts << $1 }
ruby_apps = ["ruby", "irb", "erb", "rdoc", "testrb"]
# this should be provided by rbconfig.rb
if ext
unless exts.include? ext
$stderr.puts "Choices are: #{exts.join(" ")}"
exit -1
end
extstr = ext.sub(/^(?!-)/, "-")
ruby_apps.each do |app|
target = app + extstr
if File.exist? target
if File.exist?(app) and not File.symlink?(app)
$stderr.puts "File #{app} exists and is not a symlink. Aborting."
exit -1
end
File.delete(app) and File.symlink(target, app) and
puts "#{app} -> #{target}"
end
end
else
cur =
ruby_apps.map do |app|
" " + `ls -l #{app}`[/\w+ -> .*/]
end
puts "Current versions are:", cur
puts "Choices are: #{exts.join(" ")}"
end
