# 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
fout = os.popen('convert -version 2>&1')
output = fout.readline()
fout.close()
+if not PY2:
+ # Ensure we have a (unicode) string object in Python3
+ # (not required for version >= 3.5).
+ # FIXME: Check whether this is required with any supported 3.x version!
+ output = str(output)
+
version = re_version.match(output)
# Imagemagick by default
+im = False
gm = False
if version != None:
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.*$')
if version != None:
gm = True
-opts = "-depth 8"
+# IM >= 5.5.8 separates options for source and target files
+# See http://www.imagemagick.org/Usage/basics/#why
+if im or gm:
+ sopts = ""
+ topts = ""
+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
+ sopts = '-define pdf:use-cropbox=true ' + sopts
# If supported, add the -flatten option for ppm target formats (see bug 4749)
-if sys.argv[3] == 'ppm' and (version >= 0x060305 or gm):
- opts = opts + ' -flatten'
+if sys.argv[3] == 'ppm' and (im and version >= 0x060305 or gm):
+ topts = '-flatten'
-if os.system(r'%s %s "%s" "%s"' % (command, opts, sys.argv[2], sys.argv[3] + ':' + sys.argv[4])) != 0:
- print >> sys.stderr, sys.argv[0], 'ERROR'
- print >> sys.stderr, ('Execution of "%s" failed.' % command)
+# print (command, sys.argv[2], sys.argv[4], file= sys.stdout)
+if (im or gm) and os.system(r'%s %s "%s" %s "%s"' % (command, sopts, sys.argv[2], topts, 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)