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thebookofshaders/src/parseBook.py

119 lines
4.5 KiB
Python

import os
import os.path
import re
import subprocess
import argparse
parser = argparse.ArgumentParser()
parser.add_argument("-f", "--format", action='append', choices=['tex', 'pdf', 'epub'], type=str.lower, required=True)
parser.add_argument("--skip-image-generation", help="skip image generation", action="store_true")
args = parser.parse_args()
latexEngine = "xelatex"
# Output path
outputPath = "."
if not os.path.exists(outputPath):
os.makedirs(outputPath)
chapters = []
def injectShaderBlocks(_folder, _text):
rta = ""
lines = _text.split('\n')
for line in lines:
if line.find('<div class=\"codeAndCanvas\"') >= 0:
shaderTextureResults = re.findall(
r'<div class=\"codeAndCanvas\" data=\".*\" data-imgs=\"(.*)\"></div>', line.rstrip())
shaderFile = re.sub(
r'<div class=\"codeAndCanvas\" data=\"(.*?)\"(>| .+>)</div>', r'\1', line.rstrip())
shaderName, shaderExt = os.path.splitext(shaderFile)
shaderPath = folder + "/" + shaderFile
if shaderTextureResults:
shaderTexturePaths = map(
lambda f: folder + "/" + f, shaderTextureResults[0].split(","))
else:
shaderTexturePaths = []
shaderString = open(shaderPath, 'r').read()
rta += '```glsl\n' + shaderString.rstrip('\n') + '\n```\n'
shaderImage = folder + "/tmp-" + shaderName + ".png"
shaderCommand = "glslViewer " + shaderPath + " " + \
" ".join(shaderTexturePaths) + \
" --headless -e wait,0.5 -E screenshot," + shaderImage
print(shaderCommand)
if not args.skip_image_generation:
returnCode = subprocess.call(shaderCommand, shell=True)
rta += "![](" + shaderImage + ")\n"
elif line.find('.gif') >= 0:
gifPath = re.sub(r'\!\[.*\]\((.*\.gif)\)', r'\1', line.rstrip())
gifName, gifExt = os.path.splitext(gifPath)
pngImage = gifName + ".png"
convertCommand = "convert " + gifPath + " " + pngImage
print(convertCommand)
if not args.skip_image_generation:
returnCode = subprocess.call(convertCommand, shell=True)
rta += re.sub(r'\!\[(.*)\]\((.*)\.gif\)',
r'![\1](\2-0.png)', line) + '\n'
else:
rta += line + '\n'
return rta
d = '.'
folders = [os.path.join(d, o) for o in os.listdir(
d) if os.path.isdir(os.path.join(d, o))]
folders.sort()
for folder in folders:
if os.path.isfile(folder + '/README.md'):
with open(folder + '/README.md', "r") as originalChapter:
fileString = originalChapter.read()
# Correct path for images
imgPattern = r'(\!\[.*?\]\()(.*)'
subPattern = r'\1' + folder + r'/\2'
modifiedChapterString = re.sub(imgPattern, subPattern, fileString)
modifiedChapterString = injectShaderBlocks(
folder, modifiedChapterString)
modifiedChapterPath = folder + '/tmp.md'
with open(modifiedChapterPath, "w") as modifiedChapter:
modifiedChapter.write(modifiedChapterString)
chapters.append(modifiedChapterPath)
# Set up the appropriate options for the pandoc command
inputOptions = chapters
generalOptions = ["-N", "--toc", "--standalone",
"--preserve-tabs", "-V documentclass=scrbook",
"-V papersize=a4", "-V links-as-note"]
latexOptions = ["--pdf-engine=" + latexEngine]
for outputFormat in args.format:
bookPath = os.path.join(outputPath, "book.{0}".format(outputFormat))
formatOutputOptions = []
if outputFormat == 'epub':
formatOutputOptions = ["--epub-metadata=epub/metadata.xml",
"--epub-cover-image=epub/cover.png"]
outputOptions = ["--output={0}".format(bookPath)] + formatOutputOptions
pandocCommand = ["pandoc"] + inputOptions + outputOptions \
+ generalOptions + latexOptions
# print(out of the chapters being built and the flags being used
print("Generating {0} from:".format(bookPath))
for chapter in inputOptions:
print("\t{0}".format(chapter))
print("Using the following flags:")
for flag in outputOptions + generalOptions + latexOptions:
print("\t{0}".format(flag))
returnCode = subprocess.call(pandocCommand)
if returnCode == 0:
print("Successful building of {0}".format(bookPath))
else:
print("Error in building of {0}".format(bookPath))