Saturday, 4 December 2010

Actionscript Debugging Working in GEDIT (Sort of...)

In my previous post I described how to write a shell script for Gedit under linux that would compile an actionscript/mxml project. I have come up with a reasonably good method for outputting trace statements to the Gedit console. Here is the script that I use to do it:


EHOME=`echo $HOME | sed "s/#/\#/"`

echo '--------------------'


cd ${DIR%${FILE}} > /dev/stderr

export PATH=/home/experimentalized/developer/sdks/flex_sdk/bin:$PATH
mxmlc -debug=true -static-link-runtime-shared-libraries=true ${FILE}
gnome-open ${SWF}

echo "Waiting for Flash Player to connect"
sleep 4


CURRENT=`sed -n "${LINE}{p;q}" ${OUTPUTDIR}`

while [ "true" ]
 if ps ax | grep -v grep | grep flashplayerdebugger > /dev/null
  TOTALLINES=`sed -n '$=' ${OUTPUTDIR}`
  if [ "$TOTALLINES" -ge "$LINE" ]; then
   CURRENT=`sed -n "${LINE}{p;q}" ${OUTPUTDIR}`
   LINE=$(( $LINE + 1 ))
   echo ${CURRENT}

exit 0
 The script initially does the same as the one in the previous post, but sets -debug to true. When the flash debug player runs it outputs data to a log file. This file is called flashlog.txt and is stored in ~/.macromedia/Flash_Player/Logs/ by default on linux. The script runs through lines in the trace output and echos them to the console one at a time. When it notices that the flash player is closed, it exits and when it reaches the last available line it stops tracing. It does in fact work (although there is a bit of latency as debugger writes to file -> is read by script isn't instantaneous). It may not be great for things like ENTER_FRAME events, and current mouse position, but it is enough for me. Just install it in the same way as I did in the previous post and set a key-shortcut like control-alt-d for debugging.

I think I'm finally happy with my flash setup on Linux which is great (although code completion isn't there so I may take a look into that). Here are some screenshots:


  1. This is pretty cool when using gedit.
    I recently discover the tail command in linux, it suits for my needs for now.

    tail -f /home/experimentalized/.macromedia/Flash_Player/Logs/flashlog.txt


  2. Hi xoom'o, thanks for the comment. That is really useful! Since I wrote this post however I have started using fdb which comes as part of the flex sdk. Seems like it is a better option than continuously reading a file. I am working on a full on flash builder style plug-in for gedit using glade and python, which I should be able to finish when I have a bit more time. This will incorporate fdb debugging so stay tuned!

  3. I would like to thank you for the efforts you have made in writing this article.
    play game jogos online online and play game unblockedgames