Can't get groovysh to run in a cygwin xterm under Windows XP.

Hi Kevin, probably not relevant but what version of Java are you using? It might help when I try to replicate the issue when I get a chance.

Paul - sorry, I really meant to include that in the original bug. It was jdk 1.6.0_0_4. I chatted with Guillaume briefly this afternoon and he suggested that maybe this should be reopened since the JLine stuff doesn't work if you invoke groovysh with the --terminal=none option.

close off release 1.5.4

For the mailing list:

If I invoke groovysh under cygwin on Windows XP with the --terminal=none, it does work. But you lose all line editing goodness. I've pasted two different invocations of groovysh to show the difference in behavior:

kslater@IT026 ~
$ groovysh
Groovy Shell (1.5.4, JVM: 10.0-b19)
Type 'help' or '\h' for help.

groovy:000> show variables
[Ctrl-C pressed here by user]

kslater@IT026 ~
$ show variables
bash: show: command not found

kslater@IT026 ~
$ groovysh --terminal=NONE
Groovy Shell (1.5.4, JVM: 10.0-b19)
Type 'help' or '\h' for help.
-------------------------------------------------------------------------------
groovy:000> show variables
No variables defined
groovy:000> exit

kslater@IT026 ~

Notice that in the first case the groovysh interpreter just hangs when I hit enter after asking it to show variables. Ctrl-C breaks out of it and then the cygwin bash shell tries to interpret that line. When invoked with --terminal=NONE things work, but with no line editing capability.

Reopened as per mailing list

bump fix version (targetting 1.5.5 but can be pushed if it turns out to be due to third party jar issues)

Using the latest 1.5.5 snapshot which has an updated jline, I get:

$ ./groovysh
Groovy Shell (1.5.5-SNAPSHOT, JVM: 10.0-b19)
Type 'help' or '\h' for help.
---------------------------------------------
groovy:000> show variables
No variables defined
groovy:000> exit

I am tempted to close this issue off.

As nothing else intentionally changed in the Groovy codebase though I will await someone else to try this.

If anyone wants to try, you can either build from the branch or replace the respective two jars below into a 1.5.4 release (untested but may work):

http://repo1.maven.org/maven2/jline/jline/0.9.94/jline-0.9.94.jar
http://snapshots.repository.codehaus.org/org/codehaus/groovy/groovy-all/1.5.5-SNAPSHOT/groovy-all-1.5.5-20080227.000510-1.jar

Paul,

I tried your suggestion with my 1.5.4 install on Windows XP. I assumed that I should put the updated jline jar into $GROOVY_HOME/lib and the groovy-all jar into $GROOVY_HOME/embeddable. Doing this still came back with the same behavior as stock 1.5.4. So I guess I'll just have to wait until 1.5.5 to retest.

I guess we could increase confidence that 1.5.5 is fixed by trying out 1.6-snapshot. It is also using the updated jline (though it does have other changes):
http://build.canoo.com/groovy/artifacts/20080229203149/dist

I just tried 1.5.5-SNAPSHOT on a second machine that was exhibiting the same issues on 1.5.4. It also seems fixed with 1.5.5-SNAPSHOT. Making as fixed. Please reopen if you can reproduce the problem at a later date.

I ran across this bug when I researched a similar issue with another JVM language. See my comment on the JLine issue tracker for

[ 1822900 ] JLine does not work under Cygwin
http://sourceforge.net/tracker/index.php?func=detail&aid=1822900&group_id=64033&atid=506056

The following wrapper will make the stock groovy-1.5.4 groovysh shell function somewhat acceptably under Cygwin + xterm:

#!/bin/bash
#

1. Run groovysh with the appropriate terminal setting
   #
   stty -icanon min 1 -echo
   groovysh --terminal=unix
   stty icanon echo

Thanks very much for that work around! I was able to put it in place and it works pretty much perfectly as far as I've been able to test it. (And I learned something for the next time I run into an issue with jline / cygwin.) Now I can use groovysh again until I get a chance to upgrade to the fixed version of Groovy.

I added your great suggestion to the troubleshooting section of the groovysh doco on the wiki.