Jython Shell Script Verbosity
@ 2009-08-08 18:24:39
Filed under: Code Tech Python Jython
Frank made me want to send something back today so I added script debugging to the jython shell script ... Now I should go eat something.
Here is the actual patch if you are interested ....
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Filed under: Code Tech Python Jython
Frank made me want to send something back today so I added script debugging to the jython shell script ... Now I should go eat something.
[steve@powerhouse shell]$ ./jython ./jython: contains neither jython-dev.jar nor jython.jar. Try running this script from the 'bin' directory of an installed Jython or setting $JYTHON_HOME. [steve@powerhouse shell]$ ./jython --verbose + JYTHON_SHELL_DEBUG=true + cygwin=false + case "`uname`" in ++ uname + PRG=./jython + '[' -h ./jython ']' + '[' -z '' ']' + JAVA_CMD=(java) + '[' -z '' ']' + '[' ./jython = ./jython ']' ++ pwd + JYTHON_HOME_1=/home/steve/Tech/jython/jython/src/shell + '[' -f /home/steve/Tech/jython/jython/src/shell/jython.jar -o -f \ /home/steve/Tech/jython/jython/src/shell/jython-dev.jar ']' ++ dirname /home/steve/Tech/jython/jython/src/shell + JYTHON_HOME=/home/steve/Tech/jython/jython/src + '[' '!' -f /home/steve/Tech/jython/jython/src/jython.jar -a '!' \ -f /home/steve/Tech/jython/jython/src/jython-dev.jar ']' + JYTHON_HOME= + '[' -z '' ']' + JYTHON_OPTS= + CP_DELIMITER=: + CP=/jython-dev.jar + '[' -f /jython-dev.jar ']' + '[' '!' -f /jython.jar ']' + echo './jython: contains neither jython-dev.jar nor jython.jar.' ./jython: contains neither jython-dev.jar nor jython.jar. + echo 'Try running this script from the '\''bin'\'' directory of an installed Jython or ' Try running this script from the 'bin' directory of an installed Jython or + echo 'setting $JYTHON_HOME.' setting $JYTHON_HOME. + exit 1 [steve@powerhouse shell]$
Here is the actual patch if you are interested ....
diff --git a/jython/src/shell/jython b/jython/src/shell/jython
index ff8df4a..41f145b 100755
--- a/jython/src/shell/jython
+++ b/jython/src/shell/jython
@@ -12,9 +12,25 @@
#
# -----------------------------------------------------------------------------
-cygwin=false
+# ----- Allow for script debug mode -------------------------------------------
+# Someone may want to know what this script is doing :-) ... allow --verbose/-v
+# Note that this is done way before other options so the user can see the
+# results from the start.
+JYTHON_SHELL_DEBUG=false
+function toggle_debug {
+ ARGS=$1
+ if [[ "$ARGS" =~ "--verbose" ]]; then
+ if [ $JYTHON_SHELL_DEBUG == false ]; then
+ set -x && JYTHON_SHELL_DEBUG=true
+ else
+ set +x && JYTHON_SHELL_DEBUG=false
+ fi
+ fi
+}
+toggle_debug $@
# ----- Identify OS we are running under --------------------------------------
+cygwin=false
case "`uname`" in
CYGWIN*) cygwin=true;;
Darwin) darwin=true;;
@@ -267,6 +283,7 @@ elif [ -n "$help_requested" ] ; then
echo "--print : print the Java command instead of executing it" >&2
echo "--profile: run with the Java Interactive Profiler (http://jiprof.sf.net)" >&2
echo "--boot : put jython on the boot classpath (disables the bytecode verifier)" >&2
+ echo "--verbose: shows all information on this shell script as it executes" >&2
echo "-- : pass remaining arguments through to Jython" >&2
echo "Jython launcher environment variables:" >&2
echo "JAVA_HOME : Java installation directory" >&2
@@ -277,5 +294,6 @@ fi
if $cygwin; then
stty icanon echo > /dev/null 2>&1
fi
-
+# Turn off script debug just incase
+toggle_debug $@
exit $JYTHON_STATUS
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