Dave wrote:
Hi -
I have a build system which works fine from the command line, but
stops mysteriously when I run it from cron.
The build file structure for my application has a master file at the
top, which calls targets on submodules, some of which have
sub-submodules.
There's a shell script wrapper which calls the master build.xml file,
and it runs fine from the command line.
When it runs from cron (after adding the -verbose flag), I see in the
logs that it get this far in compiling the first of the sub-submodules
and then exits without any errors:
[javac] Files to be compiled:
[javac] /path/to/JavaClass1.java
...
[javac] /path/to/JavaClass25.java
[ant] Exiting /path/to/sub-submodule/build.xml.
[ant] Exiting /path/to/submodule/build.xml.
[ant] Exiting /path/to/submodule/build.xml.
[antcall] Exiting /path/to/master-build.xml.
[antcall] Exiting /path/to/master-build.xml.
When I run the same shell script from the command line, it gets to the
same place and then keeps going with the jar task which comes after
the javac task:
[javac] Files to be compiled:
[javac] /path/to/JavaClass1.java
...
[javac] /path/to/JavaClass25.java
jar:
[echo] making jar files for sub-submodule
[mkdir] Created dir: /path/to/submodule/lib/classes/META-INF
[copy] MANIFEST.MF added as MANIFEST.MF doesn't exist.
... and so on until it finishes all the modules.
The cron job is set up like this:
30 2 * * * /path/to/build-and-test.sh > /tmp/cron.log
Any ideas? Thanks!
It's very likely that the cron unser does not have the same environment
like you when you start your script at the commandline.
At the moment, you only redirect stdout to your log. You should probably
redirect stderr aswell, as there might be errors indeed. Something like
30 2 * * * /path/to/build-and-test.sh > /tmp/cron.log 2>&1
Another possibility is to leave out the redirect and have the whole
output of cron mailed to you by adding [EMAIL PROTECTED] at the
beginning of the crontab.
BTW: I never setup cronjobs between 2 and 3 in the night because that
hour is left out when time is changed to summertime in spring.
Regards,
Gisbert Amm
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