[GRASS-dev] File based GRASS batch processing?

[Markus Neteler]

On Mon, Jan 22, 2007 at 10:34:59PM +0000, Glynn Clements wrote:
> Markus Neteler wrote:
> 
> > I often have to process large data sets on remote
> > machines which takes more than a day. Since I
...
> 
> As a quick hack, you could try setting SHELL to ./myjobs.sh, so that
> Init.sh runs the script instead of an interactive shell. However,
> myjobs.sh should probably set SHELL back to e.g. /bin/sh in case
> anything which is run from it uses $SHELL.

This seems to work.
 
> But adding a -batch switch to Init.sh wouldn't be that hard.
> 

Attached a first sort of working hack "diff". Could be
certainly nicer.

[.. useful hints omitted.. ]

It works like this:

export GRASS_BATCH_JOB=/tmp/myjob.sh
grass63 -text ~/grassdata/spearfish60/neteler/


Markus
-------------- next part --------------
? OBJ.i686-pc-linux-gnu
? diff
Index: init.sh
===================================================================
RCS file: /home/grass/grassrepository/grass6/lib/init/init.sh,v
retrieving revision 1.99
diff -u -r1.99 init.sh
--- init.sh	8 Jan 2007 15:22:24 -0000	1.99
+++ init.sh	22 Jan 2007 23:07:20 -0000
@@ -90,6 +90,7 @@
             echo "  GRASS_WISH                     set wish shell name to override 'wish'"
             echo "  GRASS_HTML_BROWSER             set html web browser for help pages"
             echo "  GRASS_ADDON_PATH               set additional path(s) to local GRASS modules"
+            echo "  GRASS_BATCH_JOB                shell script to be processed as batch job"
 	    exit
 	    ;;
 	
@@ -665,6 +666,19 @@
     exit 1
 fi
 
+# hack to process batch jobs:
+if [ -x "$GRASS_BATCH_JOB" ] ; then
+   if [ ! -f "$GRASS_BATCH_JOB" ] ; then
+      echo "Batch job file $GRASS_BATCH_JOB as defined in GRASS_BATCH_JOB variable not found. Exiting."
+      exit 1
+   else
+      SHELL="$GRASS_BATCH_JOB"
+   fi
+else
+      echo "Batch job file $GRASS_BATCH_JOB as defined in GRASS_BATCH_JOB variable not found. Exiting."
+      exit 1
+fi
+
 # Start the chosen GUI but ignore text
 case "$GRASS_GUI" in
     
@@ -866,3 +880,8 @@
 echo 
 echo "Goodbye from GRASS GIS"
 echo
+if [ -x "$GRASS_BATCH_JOB" ] ; then
+   echo "Batch job $GRASS_BATCH_JOB was executed."
+   exit 0
+fi
+