# Piston 1.3.2: More switch corrections **URL:** \ **Category:** Ruby\ **Created:** [March 9, 2007, 4:45pm UTC](https://www.ruby-forum.com/t/piston-1-3-2-more-switch-corrections/88313 "2007-03-09T16:45:42Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![fbeausoleil](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/ec9cab/32.png) [@fbeausoleil](https://www.ruby-forum.com/u/fbeausoleil)\ **Post date:** [March 9, 2007, 4:45pm UTC](https://www.ruby-forum.com/t/piston-1-3-2-more-switch-corrections/88313/1 "2007-03-09T16:45:42Z")
Sorry for the double message, but I found another bug in the piston switch subcommand. This warranted another patch release, or else it would have been unusable. = What is it ? Piston is a utility that eases vendor branch management. This is similar to svn:externals, except you have a local copy of the files, which you can modify at will. As long as the changes are mergeable, you should have no problems. = What’s changed ? 2007-03-09 1.3.2 - piston switch had a bad constant access which caused failures. = Installation sudo gem install --include-dependencies piston Enjoy ! ---
**Author:** ![fbeausoleil](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/ec9cab/32.png) [@fbeausoleil](https://www.ruby-forum.com/u/fbeausoleil)\ **Post date:** [March 9, 2007, 4:53pm UTC](https://www.ruby-forum.com/t/piston-1-3-2-more-switch-corrections/88313/2 "2007-03-09T16:53:43Z")
On 3/9/07, François Beausoleil [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > = What’s changed ? > > 2007-03-09 1.3.2 > > - piston switch had a bad constant access which caused failures. > > = Installation > > sudo gem install --include-dependencies piston Ok, say I have checked out code from some remote repo using piston in “/vendor/plugins” directory of rails and have modified the plugin. Now, I want to checkin these modifications to the remote repository, so that other people can also get the new code. So, how does piston solve this problem? can i checkin my plugin from RAILS\_ROOT, assuming RAILS\_ROOT is associated with different SVN repo and plugin has been downloaded from different svn repo? ---
**Author:** ![fbeausoleil](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/ec9cab/32.png) [@fbeausoleil](https://www.ruby-forum.com/u/fbeausoleil)\ **Post date:** [March 9, 2007, 5:58pm UTC](https://www.ruby-forum.com/t/piston-1-3-2-more-switch-corrections/88313/3 "2007-03-09T17:58:10Z")
Hi ! 2007/3/9, hemant [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid): > Ok, say I have checked out code from some remote repo using piston in > “/vendor/plugins” directory of rails and have modified the plugin. > Now, I want to checkin these modifications to the remote repository, > so that other people can also get the new code. > > So, how does piston solve this problem? can i checkin my plugin from > RAILS\_ROOT, assuming RAILS\_ROOT is associated with different SVN repo > and plugin has been downloaded from different svn repo? At the moment, Piston provides no help to do that. The best you could do is determine what changes you made using svn log, and then svn diff the relevant revisions. There already is a feature request by Evan Weaver for this. I believe this is something Piston should handle, so it will be in the next minor revision. Thanks for using Piston ! ---
**Author:** ![fbeausoleil](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/f/ec9cab/32.png) [@fbeausoleil](https://www.ruby-forum.com/u/fbeausoleil)\ **Post date:** [March 9, 2007, 6:57pm UTC](https://www.ruby-forum.com/t/piston-1-3-2-more-switch-corrections/88313/4 "2007-03-09T18:57:42Z")
Hello Francois! It seems there are still some problems with switch: here’s what happens when i try to switch my rspec\_on\_rails plugin from the 0\_8\_1 tag to the 0\_8\_2 tag: zen% piston switch svn://rubyforge.org/var/svn/rspec/tags/REL\_0\_8\_2/rspec\_on\_rails/vendor/plugins/rspec\_on\_rails vendor/plugins/rspec\_on\_rails Processing ‘vendor/plugins/rspec\_on\_rails’… Fetching remote repository’s latest revision and UUID Restoring remote repository to known state at r1561 Updating remote repository to svn://rubyforge.org/var/svn/rspec/tags/REL\_0\_8\_2/rspec\_on\_rails/vendor/plugins/rspec\_on\_rails@1560 svn: Target path does not exist /opt/local/lib/ruby/gems/1.8/gems/piston-1.3.2/lib/piston/command.rb:47:in `svn’: Command svn switch --revision 1560 svn://rubyforge.org/var/svn/rspec/tags/REL\_0\_8\_2/rspec\_on\_rails/vendor/plugins/rspec\_on\_rails vendor/plugins/rspec\_on\_rails.tmp resulted in an error: (RuntimeError) ``` from ``` /opt/local/lib/ruby/gems/1.8/gems/piston-1.3.2/lib/piston/commands/switch.rb:51:in `switch' from /opt/local/lib/ruby/gems/1.8/gems/piston-1.3.2/lib/piston/commands/switch.rb:9:in`run’ from /opt/local/lib/ruby/gems/1.8/gems/piston-1.3.2/lib/transat/parser.rb:131:in `execute' from /opt/local/lib/ruby/gems/1.8/gems/piston-1.3.2/lib/transat/parser.rb:127:in`each’ from /opt/local/lib/ruby/gems/1.8/gems/piston-1.3.2/lib/transat/parser.rb:127:in `execute' from /opt/local/lib/ruby/gems/1.8/gems/piston-1.3.2/lib/transat/parser.rb:104:in`parse\_and\_execute’ from /opt/local/lib/ruby/gems/1.8/gems/piston-1.3.2/bin/piston:10 from /opt/local/bin/piston:16:in `load’ from /opt/local/bin/piston:16 regards chris