Fails to indicate required debuild dependency

[Steven Sheehy]

Running bzr dailydeb without debuild installed displays this useless error:

Building the source package
bzr: ERROR: [Errno 2] No such file or directory

The script should either check for debuild being installed before running or at the very least throw a useful error message to indicate to the user that they need to install debuild. I had to look into bzr-builder source to find out why it was failing.

[James Westby (james-w)]

Catching and wrapping this error would be good, and making the packaging depend on
devscripts if it doesn't already.

Thanks,

James

[James Westby (james-w)]

Oh, catching and wrapping would be something like

try:
   ...
except OSError, e:
   if e.errno != 2:
     raise
   raise MissingDependency("debuild...

defining MissingDependency near the top of the file if bzr doesn't provide something
we can re-use.

Thanks,

James

[Robert Collins (lifeless)]

errors.DependencyNotPresent is probably what you want.

BTW, better to use errno.ENOENT rather than '2' - more portable.

-Rob