lyx_mirror/lib/scripts/convertDefault.py
José Matos 5b160e82be Update scripts to support simultaneously python 2 and 3
The fixes are simple and on line with the changes made during
the 2.3 development. It was an oversight to leave them out.

With this commit all the python scripts should be supported by
python 2 and 3.
2018-04-28 10:51:35 +01:00

81 lines
2.6 KiB
Python

# -*- coding: utf-8 -*-
# file convertDefault.py
# This file is part of LyX, the document processor.
# Licence details can be found in the file COPYING.
# \author Herbert Voß
# \author Bo Peng
# Full author contact details are available in file CREDITS.
# The default converter if no other has been defined by the user from the
# Conversion->Converter tab of the Preferences dialog.
# The user can also redefine this default converter, placing their
# replacement in ~/.lyx/scripts
# converts an image $2 (format $1) to $4 (format $3)
from __future__ import print_function
import os, re, sys
PY2 = sys.version_info[0] == 2
# We may need some extra options only supported by recent convert versions
re_version = re.compile(r'^Version:.*ImageMagick\s*(\d*)\.(\d*)\.(\d*).*$')
# imagemagick 7
command = 'magick'
fout = os.popen('magick -version 2>&1')
output = fout.readline()
if fout.close() != None:
# older versions
# caution: windows has a convert.exe for converting file systems
command = 'convert'
fout = os.popen('convert -version 2>&1')
output = fout.readline()
fout.close()
if not PY2:
output = output.decode()
version = re_version.match(output)
# Imagemagick by default
im = False
gm = False
if version != None:
major = int(version.group(1))
minor = int(version.group(2))
patch = int(version.group(3))
version = hex(major * 65536 + minor * 256 + patch)
im = True
else:
# Try GraphicsMagick
re_version = re.compile(r'^GraphicsMagick.*http:..www.GraphicsMagick.org.*$')
version = re_version.match(output)
if version != None:
gm = True
if im or gm:
opts = "-depth 8"
elif sys.platform == 'darwin':
command = 'lyxconvert'
# If supported, add the -define option for pdf source formats
if sys.argv[1] == 'pdf' and (version >= 0x060206 or gm):
opts = '-define pdf:use-cropbox=true ' + opts
# If supported, add the -flatten option for ppm target formats (see bug 4749)
if sys.argv[3] == 'ppm' and (im and version >= 0x060305 or gm):
opts = opts + ' -flatten'
# print (command, sys.argv[2], sys.argv[4], file= sys.stdout)
if (im or gm) and os.system(r'%s %s "%s" "%s"' % (command, opts, sys.argv[2], sys.argv[3] + ':' + sys.argv[4])) != 0:
print (sys.argv[0], 'ERROR', file= sys.stderr)
print ('Execution of "%s" failed.' % command, file= sys.stderr)
sys.exit(1)
elif not im and not gm and sys.platform == 'darwin' and os.system(r'%s "%s" "%s"' % (command, sys.argv[2], sys.argv[4])) != 0:
print (sys.argv[0], 'ERROR', file= sys.stderr)
print ('Execution of "%s" failed.' % command, file= sys.stderr)
sys.exit(1)