[GRASS-dev] [GRASS GIS] #2428: r.external to accept gdal config options

[GRASS GIS]

#2428: r.external to accept gdal config options
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 Reporter:  perrygeo     |       Owner:  grass-dev@…              
     Type:  enhancement  |      Status:  new                      
 Priority:  normal       |   Milestone:  7.1.0                    
Component:  Default      |     Version:  svn-trunk                
 Keywords:               |    Platform:  Unspecified              
      Cpu:  x86-64       |  
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 When linking to an external GDAL raster source, it would be useful to pass
 GDAL configuration options (http://trac.osgeo.org/gdal/wiki/ConfigOptions)

 Consider this scenario: I need to specify a GDAL config option to read an
 NetCDF file correctly. I can specify `GDAL_NETCDF_BOTTOMUP=NO` as an
 environment variable which works for most cases but when using a
 multiprocessing approach to parallelization (as e.g. `t.aggregate` does)
 the newly spawned processes don't inherit the same environment and will
 fail.

 The solution might be for `r.external` to accept GDAL config options that
 can be applied regardless of the environment variables and can allow
 externally linked rasters to function properly across processes.

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Ticket URL: <http://trac.osgeo.org/grass/ticket/2428>
GRASS GIS <http://grass.osgeo.org>