1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
|
"""
Contains writer for writing nbconvert output to PDF.
"""
#-----------------------------------------------------------------------------
#Copyright (c) 2013, the IPython Development Team.
#
#Distributed under the terms of the Modified BSD License.
#
#The full license is in the file COPYING.txt, distributed with this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
import subprocess
import os
from IPython.utils.traitlets import Integer, List, Bool
from .base import PostProcessorBase
#-----------------------------------------------------------------------------
# Classes
#-----------------------------------------------------------------------------
class PDFPostProcessor(PostProcessorBase):
"""Writer designed to write to PDF files"""
iteration_count = Integer(3, config=True, help="""
How many times pdflatex will be called.
""")
command = List(["pdflatex", "{filename}"], config=True, help="""
Shell command used to compile PDF.""")
verbose = Bool(False, config=True, help="""
Whether or not to display the output of the compile call.
""")
def call(self, input):
"""
Consume and write Jinja output a PDF.
See files.py for more...
"""
command = [c.format(filename=input) for c in self.command]
self.log.info("Building PDF: %s", command)
with open(os.devnull, 'rb') as null:
stdout = subprocess.PIPE if not self.verbose else None
for index in range(self.iteration_count):
p = subprocess.Popen(command, stdout=stdout, stdin=null)
out, err = p.communicate()
if p.returncode:
if self.verbose:
# verbose means I didn't capture stdout with PIPE,
# so it's already been displayed and `out` is None.
out = u''
else:
out = out.decode('utf-8', 'replace')
self.log.critical(u"PDF conversion failed: %s\n%s", command, out)
return
|
