mdBook preprocessor for adding contributors (git committer) to each chapter.

mdBook-add-contributors.py

import json;
import os;
import re;
import sys;

def processBookItem(src_path, item):
    if 'Chapter' in item:
        processChapter(src_path, item['Chapter'])

def processChapter(src_path, ch):
    # Get git committer for this chapter
    file_path = src_path + "/" + ch['path']
    output = os.popen('git log --pretty=short "{}" | git shortlog -sne'.format(file_path)).read()

    s = """
<div class="committers-div">
    <h4>Contributors of this page</h4>
"""
    for logline in output.splitlines():
        group = re.search("\t(.+) <([^@]+)@([^>]+)>$", logline)
        if group:
            name = group.group(1)
            alias = group.group(2)
            company = group.group(3)
            email = alias + "@" + company
            if company.lower() == "microsoft.com":
                s = s + '<a href="https://who/is/{}" title="{}"><img alt="{}" src="http://msrtc/p/avatar.php?{}"></a>\n'.format(alias, name, name, email)
            else:
                s = s + '<a href="#" title="{}"><img alt="{}" src="http://msrtc/p/avatar.php?{}"></a>\n'.format(name, name, email)
    s = s + """
</div>
"""
    ch['content'] = ch['content'] + s
    for item in ch['sub_items']:
        processBookItem(src_path, item)

def main():
    if 'supports' in sys.argv:
        sys.exit(0)

    (config, book) = json.loads(sys.stdin.readlines()[0])
    src_path = config['config']['book']['src']
    sections = book['sections']
    for item in sections:
        processBookItem(src_path, item)
    print json.dumps(book)

if __name__ == '__main__':
    main()