-# -*- coding: utf-8 -*-
-
# file docbook2epub.py
# This file is part of LyX, the document processor.
# Licence details can be found in the file COPYING.
# Full author contact details are available in file CREDITS
# Usage:
-# python docbook2epub.py java_binary in.docbook out.epub
+# python docbook2epub.py java_binary saxon_path xsltproc_path xslt_path in.docbook in.orig.path out.epub
-from __future__ import print_function
import glob
import os
import zipfile
+def _parse_nullable_argument(arg):
+ return arg if arg != '' and arg != 'none' else None
+
+
+class ImageRename:
+ def __init__(self, opf_path, local_path, epub_path):
+ self.opf_path = opf_path
+ self.local_path = local_path
+ self.epub_path = epub_path
+
+
class DocBookToEpub:
def __init__(self, args=None):
if args is None:
args = sys.argv
- if len(args) != 6:
- print('Six arguments are expected, only %s found: %s.' % (len(args), args))
+ if len(args) != 8:
+ print(f'Exactly eight arguments are expected, only {len(args)} found: {args}.')
sys.exit(1)
self.own_path = sys.argv[0]
- self.java_path = sys.argv[1] if sys.argv[1] != '' and sys.argv[1] != 'none' else None
- self.xsltproc_path = sys.argv[2] if sys.argv[2] != '' and sys.argv[2] != 'none' else None
- self.xslt_path = sys.argv[3] if sys.argv[3] != '' and sys.argv[3] != 'none' else None
- self.input = sys.argv[4]
- self.output = sys.argv[5]
+ self.java_path = _parse_nullable_argument(sys.argv[1])
+ self.saxon_path = _parse_nullable_argument(sys.argv[2])
+ self.xsltproc_path = _parse_nullable_argument(sys.argv[3])
+ self.xslt_path = _parse_nullable_argument(sys.argv[4])
+ self.input = sys.argv[5]
+ self.input_path = sys.argv[6]
+ self.output = sys.argv[7]
self.script_folder = os.path.dirname(self.own_path) + '/../'
print('Generating ePub with the following parameters:')
print(self.own_path)
print(self.java_path)
+ print(self.saxon_path)
print(self.xsltproc_path)
+ print(self.xslt_path)
print(self.input)
+ print(self.input_path)
print(self.output)
# Precompute paths that will be used later.
print('XSLT style sheet to use:')
print(self.xslt)
+ if self.saxon_path is None:
+ self.saxon_path = self.script_folder + 'scripts/saxon6.5.5.jar'
+
# These will be filled during the execution of the script.
self.renamed = None
return '"' + self.xsltproc_path + '" ' + params + ' "' + self.xslt + '" "' + self.input + '"'
def start_xslt_transformation_saxon6(self):
- saxon_jar = self.script_folder + 'scripts/saxon6.5.5.jar'
params = 'base.dir=%s' % self.output_dir
- executable = '"' + self.java_path + '" -jar "' + saxon_jar + '"'
+ executable = '"' + self.java_path + '" -jar "' + self.saxon_path + '"'
return executable + ' "' + self.input + '" "' + self.xslt + '" "' + params + '"'
def get_images_from_package_opf(self):
# The XHTML files are also <item> tags:
# <item id="id-d0e2" href="index.xhtml" media-type="application/xhtml+xml"/>
try:
- with open(self.package_opf, 'r') as f:
+ with open(self.package_opf) as f:
for line in f.readlines():
if '<item' in line and 'media-type="image' in line:
images.append(line.split('href="')[1].split('"')[0])
return images
+ def get_image_changes(self):
+ epub_folder = 'images/'
+
+ changes = []
+ for image in self.get_images_from_package_opf():
+ if os.path.exists(image):
+ file_system_path = image
+ elif os.path.exists(self.input_path + image):
+ file_system_path = self.input_path + image
+ else:
+ file_system_path = ''
+
+ changes.append(ImageRename(image, file_system_path, epub_folder + os.path.basename(image)))
+ return changes
+
def change_image_paths(self, file):
# This could be optimised, as the same operation is performed a zillion times on many files:
# https://www.oreilly.com/library/view/python-cookbook/0596001673/ch03s15.html
- with open(file, 'r', encoding='utf8') as f:
+ with open(file, encoding='utf8') as f:
contents = list(f)
with open(file, 'w', encoding='utf8') as f:
for line in contents:
- for (old, new) in self.renamed.items():
- line = line.replace(old, new)
+ for change in self.renamed:
+ line = line.replace(change.opf_path, change.epub_path)
f.write(line)
def copy_images(self):
# changed in the XHTML files. Typically, the current paths are absolute.
# First, get the mapping old file => file in the ePub archive.
- original_images = self.get_images_from_package_opf()
- self.renamed = {img: 'images/' + os.path.basename(img) for img in original_images}
+ self.renamed = self.get_image_changes()
# Then, transform all paths (both OPF and XHTML files).
self.change_image_paths(self.output_dir + '/OEBPS/package.opf')
os.mkdir(self.output_dir + '/OEBPS/images/')
# Finally, actually copy the image files.
- for (old, new) in self.renamed.items():
- shutil.copyfile(old, self.output_dir + '/OEBPS/' + new)
+ for change in self.renamed:
+ shutil.copyfile(change.local_path, self.output_dir + '/OEBPS/' + change.epub_path)
def create_zip_archive(self):
with zipfile.ZipFile(self.output, 'w', zipfile.ZIP_DEFLATED) as zip:
projects / lyx.git / blobdiff