/usr/bin/ogrmerge.py is in python-gdal 2.2.3+dfsg-2.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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# -*- coding: utf-8 -*-
###############################################################################
# $Id: ogrmerge.py 38240 2017-05-13 11:37:40Z rouault $
#
# Project: GDAL/OGR samples
# Purpose: Merge the content of several vector datasets into a single one.
# Author: Even Rouault <even dot rouault at spatialys dot com>
#
###############################################################################
# Copyright (c) 2017, Even Rouault <even dot rouault at spatialys dot com>
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
# DEALINGS IN THE SOFTWARE.
###############################################################################
import os
import sys
from osgeo import gdal
from osgeo import ogr
###############################################################
# Usage()
def Usage():
print('ogrmerge.py -o out_dsname src_dsname [src_dsname]*')
print(' [-f format] [-single] [-nln layer_name_template]')
print(' [-update | -overwrite_ds] [-append | -overwrite_layer]')
print(' [-src_geom_type geom_type_name[,geom_type_name]*]')
print(' [-dsco NAME=VALUE]* [-lco NAME=VALUE]*')
print(' [-s_srs srs_def] [-t_srs srs_def | -a_srs srs_def]')
print(' [-progress] [-skipfailures] [--help-general]')
print('')
print('Options specific to -single:')
print(' [-field_strategy FirstLayer|Union|Intersection]')
print(' [-src_layer_field_name name]')
print(' [-src_layer_field_content layer_name_template]')
print('')
print('* layer_name_template can contain the following substituable '
'variables:')
print(' {AUTO_NAME} : {DS_BASENAME}_{LAYER_NAME} if they are '
'different')
print(' or {LAYER_NAME} if they are identical')
print(' {DS_NAME} : name of the source dataset')
print(' {DS_BASENAME}: base name of the source dataset')
print(' {DS_INDEX} : index of the source dataset')
print(' {LAYER_NAME} : name of the source layer')
print(' {LAYER_INDEX}: index of the source layer')
return 1
#############################################################################
def _VSIFPrintfL(f, s):
gdal.VSIFWriteL(s, 1, len(s), f)
#############################################################################
def EQUAL(x, y):
return x.lower() == y.lower()
#############################################################################
def _GetGeomType(src_geom_type_name):
if EQUAL(src_geom_type_name, "GEOMETRY"):
return ogr.wkbGeometry
try:
max_geom_type = ogr.wkbTriangle
except:
# GDAL 2.1 compat
max_geom_type = ogr.wkbSurface
for i in range(max_geom_type + 1):
if EQUAL(src_geom_type_name,
ogr.GeometryTypeToName(i).replace(' ', '')):
return i
return None
#############################################################################
def _Esc(x):
return gdal.EscapeString(x, gdal.CPLES_XML)
class XMLWriter:
def __init__(self, f):
self.f = f
self.inc = 0
self.elements = []
def _indent(self):
return ''.join([' ' for i in range(self.inc)])
def open_element(self, name, attrs=None):
xml_attrs = ''
if attrs is not None:
for key in attrs:
xml_attrs = xml_attrs + ' %s=\"%s\"' % (key, _Esc(attrs[key]))
_VSIFPrintfL(self.f, '%s<%s%s>\n' % (self._indent(), name, xml_attrs))
self.inc = self.inc + 1
self.elements.append(name)
def write_element_value(self, name, value, attrs=None):
xml_attrs = ''
if attrs is not None:
for key in attrs:
xml_attrs = xml_attrs + ' %s=\"%s\"' % (key, _Esc(attrs[key]))
_VSIFPrintfL(self.f, '%s<%s%s>%s</%s>\n' %
(self._indent(), name, xml_attrs,
_Esc(value), name))
def close_element(self, closing_name=None):
self.inc = self.inc - 1
name = self.elements[-1]
if closing_name is not None:
assert name == closing_name
self.elements = self.elements[0:-1]
_VSIFPrintfL(self.f, '%s</%s>\n' % (self._indent(), name))
###############################################################
# process()
def process(argv, progress=None, progress_arg=None):
if len(argv) == 0:
return Usage()
dst_filename = None
output_format = None
src_datasets = []
overwrite_ds = False
overwrite_layer = False
update = False
append = False
single_layer = False
layer_name_template = None
skip_failures = False
src_geom_types = []
field_strategy = None
src_layer_field_name = None
src_layer_field_content = None
a_srs = None
s_srs = None
t_srs = None
dsco = []
lco = []
i = 0
while i < len(argv):
arg = argv[i]
if (arg == '-f' or arg == '-of') and i+1 < len(argv):
i = i + 1
output_format = argv[i]
elif arg == '-o' and i+1 < len(argv):
i = i + 1
dst_filename = argv[i]
elif arg == '-progress':
progress = ogr.TermProgress_nocb
progress_arg = None
elif arg == '-q' or arg == '-quiet':
pass
elif arg[0:5] == '-skip':
skip_failures = True
elif arg == '-update':
update = True
elif arg == '-overwrite_ds':
overwrite_ds = True
elif arg == '-overwrite_layer':
overwrite_layer = True
update = True
elif arg == '-append':
append = True
update = True
elif arg == '-single':
single_layer = True
elif arg == '-a_srs' and i+1 < len(argv):
i = i + 1
a_srs = argv[i]
elif arg == '-s_srs' and i+1 < len(argv):
i = i + 1
s_srs = argv[i]
elif arg == '-t_srs' and i+1 < len(argv):
i = i + 1
t_srs = argv[i]
elif arg == '-nln' and i+1 < len(argv):
i = i + 1
layer_name_template = argv[i]
elif arg == '-field_strategy' and i+1 < len(argv):
i = i + 1
field_strategy = argv[i]
elif arg == '-src_layer_field_name' and i+1 < len(argv):
i = i + 1
src_layer_field_name = argv[i]
elif arg == '-src_layer_field_content' and i+1 < len(argv):
i = i + 1
src_layer_field_content = argv[i]
elif arg == '-dsco' and i+1 < len(argv):
i = i + 1
dsco.append(argv[i])
elif arg == '-lco' and i+1 < len(argv):
i = i + 1
lco.append(argv[i])
elif arg == '-src_geom_type' and i+1 < len(argv):
i = i + 1
src_geom_type_names = argv[i].split(',')
for src_geom_type_name in src_geom_type_names:
src_geom_type = _GetGeomType(src_geom_type_name)
if src_geom_type is None:
print('ERROR: Unrecognized geometry type: %s' %
src_geom_type_name)
return 1
src_geom_types.append(src_geom_type)
elif arg[0] == '-':
print('ERROR: Unrecognized argument : %s' % arg)
return Usage()
else:
src_datasets.append(arg)
i = i + 1
if dst_filename is None:
print('Missing -o')
return 1
if update:
if output_format is not None:
print('ERROR: -f incompatible with -update')
return 1
if len(dsco) != 0:
print('ERROR: -dsco incompatible with -update')
return 1
output_format = ''
else:
if output_format is None:
output_format = 'ESRI Shapefile'
if src_layer_field_content is None:
src_layer_field_content = '{AUTO_NAME}'
elif src_layer_field_name is None:
src_layer_field_name = 'source_ds_lyr'
if not single_layer and output_format == 'ESRI Shapefile' and \
dst_filename.lower().endswith('.shp'):
print('ERROR: Non-single layer mode incompatible with non-directory '
'shapefile output')
return 1
if len(src_datasets) == 0:
print('ERROR: No source datasets')
return 1
if layer_name_template is None:
if single_layer:
layer_name_template = 'merged'
else:
layer_name_template = '{AUTO_NAME}'
vrt_filename = None
if not EQUAL(output_format, 'VRT'):
dst_ds = gdal.OpenEx(dst_filename, gdal.OF_VECTOR | gdal.OF_UPDATE)
if dst_ds is not None:
if not update and not overwrite_ds:
print('ERROR: Destination dataset already exists, ' +
'but -update nor -overwrite_ds are specified')
return 1
if overwrite_ds:
drv = dst_ds.GetDriver()
dst_ds = None
if drv.GetDescription() == 'OGR_VRT':
# We don't want to destroy the sources of the VRT
gdal.Unlink(dst_filename)
else:
drv.Delete(dst_filename)
elif update:
print('ERROR: Destination dataset does not exist')
return 1
if dst_ds is None:
drv = gdal.GetDriverByName(output_format)
if drv is None:
print('ERROR: Invalid driver: %s' % output_format)
return 1
dst_ds = drv.Create(
dst_filename, 0, 0, 0, gdal.GDT_Unknown, dsco)
if dst_ds is None:
return 1
vrt_filename = '/vsimem/_ogrmerge_.vrt'
else:
vrt_filename = dst_filename
f = gdal.VSIFOpenL(vrt_filename, 'wb')
if f is None:
print('ERROR: Cannot create %s' % vrt_filename)
return 1
writer = XMLWriter(f)
writer.open_element('OGRVRTDataSource')
if single_layer:
ogr_vrt_union_layer_written = False
for src_ds_idx, src_dsname in enumerate(src_datasets):
src_ds = ogr.Open(src_dsname)
if src_ds is None:
print('ERROR: Cannot open %s' % src_dsname)
if skip_failures:
continue
gdal.VSIFCloseL(f)
gdal.Unlink(vrt_filename)
return 1
for src_lyr_idx, src_lyr in enumerate(src_ds):
if len(src_geom_types) != 0:
gt = ogr.GT_Flatten(src_lyr.GetGeomType())
if gt not in src_geom_types:
continue
if not ogr_vrt_union_layer_written:
ogr_vrt_union_layer_written = True
writer.open_element('OGRVRTUnionLayer',
attrs={'name': layer_name_template})
if src_layer_field_name is not None:
writer.write_element_value('SourceLayerFieldName',
src_layer_field_name)
if field_strategy is not None:
writer.write_element_value('FieldStrategy',
field_strategy)
layer_name = src_layer_field_content
basename = None
if os.path.exists(src_dsname):
basename = os.path.basename(src_dsname)
if basename.find('.') >= 0:
basename = '.'.join(basename.split(".")[0:-1])
if basename == src_lyr.GetName():
layer_name = layer_name.replace('{AUTO_NAME}', basename)
elif basename is None:
layer_name = layer_name.replace(
'{AUTO_NAME}',
'Dataset%d_%s' % (src_ds_idx, src_lyr.GetName()))
else:
layer_name = layer_name.replace(
'{AUTO_NAME}', basename + '_' + src_lyr.GetName())
if basename is not None:
layer_name = layer_name.replace('{DS_BASENAME}', basename)
else:
layer_name = layer_name.replace('{DS_BASENAME}',
src_dsname)
layer_name = layer_name.replace('{DS_NAME}', '%s' %
src_dsname)
layer_name = layer_name.replace('{DS_INDEX}', '%d' %
src_ds_idx)
layer_name = layer_name.replace('{LAYER_NAME}',
src_lyr.GetName())
layer_name = layer_name.replace('{LAYER_INDEX}', '%d' %
src_lyr_idx)
if t_srs is not None:
writer.open_element('OGRVRTWarpedLayer')
writer.open_element('OGRVRTLayer',
attrs={'name': layer_name})
attrs = None
if EQUAL(output_format, 'VRT') and \
os.path.exists(src_dsname) and \
not os.path.isabs(src_dsname) and \
vrt_filename.find('/') < 0 and \
vrt_filename.find('\\') < 0:
attrs = {'relativeToVRT': '1'}
writer.write_element_value('SrcDataSource', src_dsname,
attrs=attrs)
writer.write_element_value('SrcLayer', src_lyr.GetName())
if a_srs is not None:
writer.write_element_value('LayerSRS', a_srs)
writer.close_element('OGRVRTLayer')
if t_srs is not None:
if s_srs is not None:
writer.write_element_value('SrcSRS', s_srs)
writer.write_element_value('TargetSRS', t_srs)
writer.close_element('OGRVRTWarpedLayer')
if ogr_vrt_union_layer_written:
writer.close_element('OGRVRTUnionLayer')
else:
for src_ds_idx, src_dsname in enumerate(src_datasets):
src_ds = ogr.Open(src_dsname)
if src_ds is None:
print('ERROR: Cannot open %s' % src_dsname)
if skip_failures:
continue
gdal.VSIFCloseL(f)
gdal.Unlink(vrt_filename)
return 1
for src_lyr_idx, src_lyr in enumerate(src_ds):
if len(src_geom_types) != 0:
gt = ogr.GT_Flatten(src_lyr.GetGeomType())
if gt not in src_geom_types:
continue
layer_name = layer_name_template
basename = None
if os.path.exists(src_dsname):
basename = os.path.basename(src_dsname)
if basename.find('.') >= 0:
basename = '.'.join(basename.split(".")[0:-1])
if basename == src_lyr.GetName():
layer_name = layer_name.replace('{AUTO_NAME}', basename)
elif basename is None:
layer_name = layer_name.replace(
'{AUTO_NAME}',
'Dataset%d_%s' % (src_ds_idx, src_lyr.GetName()))
else:
layer_name = layer_name.replace(
'{AUTO_NAME}', basename + '_' + src_lyr.GetName())
if basename is not None:
layer_name = layer_name.replace('{DS_BASENAME}', basename)
elif layer_name.find('{DS_BASENAME}') >= 0:
if skip_failures:
if layer_name.find('{DS_INDEX}') < 0:
layer_name = layer_name.replace(
'{DS_BASENAME}', 'Dataset%d' % src_ds_idx)
else:
print('ERROR: Layer name template %s '
'includes {DS_BASENAME} '
'but %s is not a file' %
(layer_name_template, src_dsname))
gdal.VSIFCloseL(f)
gdal.Unlink(vrt_filename)
return 1
layer_name = layer_name.replace('{DS_NAME}', '%s' %
src_dsname)
layer_name = layer_name.replace('{DS_INDEX}', '%d' %
src_ds_idx)
layer_name = layer_name.replace('{LAYER_NAME}',
src_lyr.GetName())
layer_name = layer_name.replace('{LAYER_INDEX}', '%d' %
src_lyr_idx)
if t_srs is not None:
writer.open_element('OGRVRTWarpedLayer')
writer.open_element('OGRVRTLayer',
attrs={'name': layer_name})
attrs = None
if EQUAL(output_format, 'VRT') and \
os.path.exists(src_dsname) and \
not os.path.isabs(src_dsname) and \
vrt_filename.find('/') < 0 and \
vrt_filename.find('\\') < 0:
attrs = {'relativeToVRT': '1'}
writer.write_element_value('SrcDataSource', src_dsname,
attrs=attrs)
writer.write_element_value('SrcLayer', src_lyr.GetName())
if a_srs is not None:
writer.write_element_value('LayerSRS', a_srs)
writer.close_element('OGRVRTLayer')
if t_srs is not None:
if s_srs is not None:
writer.write_element_value('SrcSRS', s_srs)
writer.write_element_value('TargetSRS', t_srs)
writer.close_element('OGRVRTWarpedLayer')
writer.close_element('OGRVRTDataSource')
gdal.VSIFCloseL(f)
ret = 0
if not EQUAL(output_format, 'VRT'):
accessMode = None
if append:
accessMode = 'append'
elif overwrite_layer:
accessMode = 'overwrite'
ret = gdal.VectorTranslate(dst_ds, vrt_filename,
accessMode=accessMode,
layerCreationOptions=lco,
skipFailures=skip_failures,
callback=progress,
callback_data=progress_arg)
if ret == 1:
ret = 0
else:
ret = 1
gdal.Unlink(vrt_filename)
return ret
###############################################################
# Entry point
def main():
argv = ogr.GeneralCmdLineProcessor(sys.argv)
if argv is None:
return 1
return process(argv[1:])
if __name__ == '__main__':
sys.exit(main())
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