2018-03-11 18:53:48 +00:00
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#!/usr/bin/env python3
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2020-05-11 00:23:54 +01:00
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# A Python script to generate a single PDF document with all the `tldr` pages. It works by generating
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2019-12-17 20:25:52 +00:00
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# intermediate HTML files from existing md files using Python-markdown, applying desired formatting
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# through CSS, and finally rendering them as PDF. There is no LaTeX dependency for generating the PDF.
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2018-03-11 18:53:48 +00:00
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import os
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import sys
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import glob
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import re
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import markdown
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import argparse
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from weasyprint import HTML
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def main(loc, colorscheme):
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oslist = []
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allmd = []
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group = []
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ap = []
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2018-03-11 18:53:48 +00:00
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2019-12-17 20:25:52 +00:00
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# Checking correctness of path
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if not os.path.isdir(loc):
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print("Invalid directory. Please try again!", file = sys.stderr)
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sys.exit(1)
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2018-03-11 18:53:48 +00:00
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2019-12-17 20:25:52 +00:00
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# Writing names of all directories inside 'pages' to a list
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for os_dir in os.listdir(loc):
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oslist.append(os_dir)
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2018-03-11 18:53:48 +00:00
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2019-12-17 20:25:52 +00:00
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oslist.sort()
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2018-03-11 18:53:48 +00:00
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# Required strings to create intermediate HTML files
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header = '<!doctype html><html><head><meta charset="utf-8"><link rel="stylesheet" href="basic.css">'
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if colorscheme != "basic":
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header += '<link rel="stylesheet" href="' + colorscheme + '.css"></head><body>\n'
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header += "</head><body>\n"
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footer = "</body></html>"
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title_content = "<h1 class=title-main>tldr pages</h1><h4 class=title-sub>Simplified and community-driven man pages</h4></body></html>"
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2018-03-11 18:53:48 +00:00
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# Creating title page
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with open("title.html", "w") as f:
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f.write(header + title_content)
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2018-03-11 18:53:48 +00:00
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group.append(HTML("title.html").render())
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2018-03-11 18:53:48 +00:00
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for operating_sys in oslist:
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i = 1
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# Required string to create directory title pages
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dir_title = "<h2 class=title-dir>" + operating_sys.capitalize() + "</h2></body></html>"
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2018-03-11 18:53:48 +00:00
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# Creating directory title page for current directory
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with open("dir_title.html", "w") as os_html:
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os_html.write(header + dir_title)
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group.append(HTML("dir_title.html").render())
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# Creating a list of all md files in the current directory
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for temp in glob.glob(os.path.join(loc, operating_sys, "*.md")):
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allmd.append(temp)
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2018-03-11 18:53:48 +00:00
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# Sorting all filenames in the directory, to maintain the order of the PDF
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allmd.sort()
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2018-03-11 18:53:48 +00:00
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# Conversion of Markdown to HTML
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for md in allmd:
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with open(md, "r") as inp:
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text = inp.readlines()
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with open("htmlout.html", "w") as out:
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out.write(header)
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for line in text:
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if re.match(r'^>', line):
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line = line[:0] + '####' + line[1:]
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html = markdown.markdown(line)
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out.write(html)
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out.write(footer)
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group.append(HTML("htmlout.html").render())
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print("Rendered page {} of the directory {}".format(str(i), operating_sys))
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i += 1
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allmd.clear()
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# Merging all the documents into a single PDF
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for doc in group:
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for p in doc.pages:
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ap.append(p)
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2018-03-11 18:53:48 +00:00
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2020-05-11 00:23:54 +01:00
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# Writing the PDF to disk, preserving metadata of first `tldr` page
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group[2].copy(ap).write_pdf('tldr-pages.pdf')
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2018-03-11 18:53:48 +00:00
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2020-05-11 00:23:54 +01:00
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if os.path.exists("tldr-pages.pdf"):
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print("\nCreated tldr-pages.pdf in the current directory!\n")
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# Removing unnecessary intermediate files
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try:
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os.remove("htmlout.html")
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os.remove("title.html")
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os.remove("dir_title.html")
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except OSError:
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print("Error removing temporary file(s)")
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2019-12-17 20:25:52 +00:00
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if __name__ == "__main__":
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# Unless specified otherwise by the user, this is the default colorscheme
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colorscheme = "basic"
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# Parsing the arguments
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parser = argparse.ArgumentParser()
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parser.add_argument("dir_path", help = "Path to the 'pages' directory")
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parser.add_argument("-c", choices=["solarized-light", "solarized-dark"], help="Color scheme of the PDF")
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args = parser.parse_args()
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loc = args.dir_path
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if args.c == "solarized-light" or args.c == "solarized-dark":
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colorscheme = args.c
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main(loc, colorscheme)
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