[GRASS-dev] [GRASS GIS] #2984: i.colors.enhance crash when input map(s) not existing

[GRASS GIS]

#2984: i.colors.enhance crash when input map(s) not existing
-----------------------------------------------+---------------------------
 Reporter:  neteler                            |      Owner:  grass-dev@…
     Type:  defect                             |     Status:  new
 Priority:  normal                             |  Milestone:  7.0.4
Component:  Python                             |    Version:  svn-
                                               |  releasebranch70
 Keywords:  i.colors.enhance, multiprocessing  |        CPU:  All
 Platform:  All                                |
-----------------------------------------------+---------------------------
 An error catch is needed:

 {{{
 GRASS 7.0.4svn (utm21S-sentinel-2-buenos-aires):~ > i.colors.enhance
 b=S2A_USER_MSI_L2A_TL_SGS__20151211T193047_A002452_B03_10m_mosaik
 g=S2A_USER_MSI_L2A_TL_SGS__20151211T193047_A002452_B04_10m_mosaik
 r=S2A_USER_MSI_L2A_TL_SGS__20151211T193047_A002452_B8A_10m_mosaik
 Processing...
 FEHLER: Rasterkarte
         <S2A_USER_MSI_L2A_TL_SGS__20151211T193047_A002452_B8A_10m_mosaik>
         wurde nicht gefunden.
 Process Process-1:
 Traceback (most recent call last):
   File "/usr/lib64/python2.7/multiprocessing/process.py", line 258, in
 _bootstrap
     self.run()
   File "/usr/lib64/python2.7/multiprocessing/process.py", line 114, in run
     self._target(*self._args, **self._kwargs)
   File "/home/mundialis/software/grass70_svn/dist.x86_64-pc-linux-
 gnu/scripts/i.colors.enhance", line 103, in get_percentile_mp
     result = get_percentile(map, percentiles)
   File "/home/mundialis/software/grass70_svn/dist.x86_64-pc-linux-
 gnu/scripts/i.colors.enhance", line 89, in get_percentile
     percentiles = values, quiet = True)
   File "/home/mundialis/software/grass70_svn/dist.x86_64-pc-linux-
 gnu/etc/python/grass/script/core.py", line 446, in read_command
     return handle_errors(returncode, stdout, args, kwargs)
   File "/home/mundialis/software/grass70_svn/dist.x86_64-pc-linux-
 gnu/etc/python/grass/script/core.py", line 313, in handle_errors
     returncode=returncode)
 CalledModuleError: Module run None ['r.quantile', '--q',
 'input=S2A_USER_MSI_L2A_TL_SGS__20151211T193047_A002452_B8A_10m_mosaik',
 'percentiles=2,98'] ended with error
 Process ended with non-zero return code 1. See errors in the (error)
 output.
 ^CTraceback (most recent call last):
   File "/home/mundialis/software/grass70_svn/dist.x86_64-pc-linux-
 gnu/scripts/i.colors.enhance", line 226, in <module>
     Process Process-2:
 Process Process-3:
 main()
 Traceback (most recent call last):
 Traceback (most recent call last):
   File "/home/mundialis/software/grass70_svn/dist.x86_64-pc-linux-
 gnu/scripts/i.colors.enhance", line 165, in main
   File "/usr/lib64/python2.7/multiprocessing/process.py", line 258, in
 _bootstrap
   File "/usr/lib64/python2.7/multiprocessing/process.py", line 258, in
 _bootstrap
     (v0, v1) = input_pipe.recv()
 KeyboardInterrupt
     self.run()
     self.run()
   File "/usr/lib64/python2.7/multiprocessing/process.py", line 114, in run
   File "/usr/lib64/python2.7/multiprocessing/process.py", line 114, in run
     self._target(*self._args, **self._kwargs)
     self._target(*self._args, **self._kwargs)
   File "/home/mundialis/software/grass70_svn/dist.x86_64-pc-linux-
 gnu/scripts/i.colors.enhance", line 103, in get_percentile_mp
   File "/home/mundialis/software/grass70_svn/dist.x86_64-pc-linux-
 gnu/scripts/i.colors.enhance", line 103, in get_percentile_mp
     result = get_percentile(map, percentiles)
     result = get_percentile(map, percentiles)
   File "/home/mundialis/software/grass70_svn/dist.x86_64-pc-linux-
 gnu/scripts/i.colors.enhance", line 89, in get_percentile
   File "/home/mundialis/software/grass70_svn/dist.x86_64-pc-linux-
 gnu/scripts/i.colors.enhance", line 89, in get_percentile
     percentiles = values, quiet = True)
     percentiles = values, quiet = True)
   File "/home/mundialis/software/grass70_svn/dist.x86_64-pc-linux-
 gnu/etc/python/grass/script/core.py", line 444, in read_command
   File "/home/mundialis/software/grass70_svn/dist.x86_64-pc-linux-
 gnu/etc/python/grass/script/core.py", line 444, in read_command
     stdout, unused = process.communicate()
     stdout, unused = process.communicate()
   File "/usr/lib64/python2.7/subprocess.py", line 791, in communicate
   File "/usr/lib64/python2.7/subprocess.py", line 791, in communicate
     stdout = _eintr_retry_call(self.stdout.read)
     stdout = _eintr_retry_call(self.stdout.read)
   File "/usr/lib64/python2.7/subprocess.py", line 476, in
 _eintr_retry_call
     return func(*args)
   File "/usr/lib64/python2.7/subprocess.py", line 476, in
 _eintr_retry_call
 KeyboardInterrupt
     return func(*args)
 KeyboardInterrupt
 }}}

 To replicate:
 {{{
 i.colors.enhance b=bla g=blu r=blo
 ...
 }}}

 Perhaps an is-input-existing-or-not test should (also) be added to the
 respective lib/python/ library?

--
Ticket URL: <https://trac.osgeo.org/grass/ticket/2984>
GRASS GIS <https://grass.osgeo.org>