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Location: kallithea/scripts/docs-headings.py - annotation

Thomas De Schampheleire
setup: restrict TurboGears2 version to 2.3.x

In TurboGears2 2.3.12, the latest version in the 2.3.x range, the WebOb
dependency requirement is [1]
WebOb >= 1.2, < 1.8.0

In TurboGears2 2.4.0 (which is in pre-release state at the time of this
commit), this becomes [2]:
WebOb >= 1.8.0, < 1.10.0

In the Kallithea dependency list, we have matched our WebOb version
requirements to that of TurboGears2 and use:
WebOb >= 1.7, < 1.8

while our TurboGears2 requirement was liberal and accepted anything in the
2.x range:
TurboGears2 >= 2.3.10, < 3

To avoid new Kallithea installations failing with conflicting WebOb version
requirements after TurboGears2 2.4.0 is released, restrict the version of
TurboGears2 to 2.3.x on the stable branch.

For the default branch, the update to TurboGears2 2.4.0 can be considered
once it's released.

[1] https://github.com/TurboGears/tg2/blob/tg2.3.12/setup.py#L54
[2] https://github.com/TurboGears/tg2/blob/ed89788c3f5dab5a182a938543c9ee4ec14dd7ef/setup.py#L41
#!/usr/bin/env python2

"""
Consistent formatting of rst section titles
"""

import re
import subprocess

spaces = [
    (0, 1), # we assume this is a over-and-underlined header
    (2, 1),
    (1, 1),
    (1, 0),
    (1, 0),
    ]

# http://sphinx-doc.org/rest.html :
#   for the Python documentation, this convention is used which you may follow:
#   # with overline, for parts
#   * with overline, for chapters
#   =, for sections
#   -, for subsections
#   ^, for subsubsections
#   ", for paragraphs
pystyles = ['#', '*', '=', '-', '^', '"']

# match on a header line underlined with one of the valid characters
headermatch = re.compile(r'''\n*(.+)\n([][!"#$%&'()*+,./:;<=>?@\\^_`{|}~-])\2{2,}\n+''', flags=re.MULTILINE)


def main():
    filenames = subprocess.check_output(['hg', 'loc', 'set:**.rst+kallithea/i18n/how_to']).splitlines()
    for fn in filenames:
        print 'processing %s' % fn
        s = open(fn).read()

        # find levels and their styles
        lastpos = 0
        styles = []
        for markup in headermatch.findall(s):
            style = markup[1]
            if style in styles:
                stylepos = styles.index(style)
                if stylepos > lastpos + 1:
                    print 'bad style %r with level %s - was at %s' % (style, stylepos, lastpos)
            else:
                stylepos = len(styles)
                if stylepos > lastpos + 1:
                    print 'bad new style %r - expected %r' % (style, styles[lastpos + 1])
                else:
                    styles.append(style)
            lastpos = stylepos

        # remove superfluous spacing (may however be restored by header spacing)
        s = re.sub(r'''(\n\n)\n*''', r'\1', s, flags=re.MULTILINE)

        if styles:
            newstyles = pystyles[pystyles.index(styles[0]):]

            def subf(m):
                title, style = m.groups()
                level = styles.index(style)
                before, after = spaces[level]
                newstyle = newstyles[level]
                return '\n' * (before + 1) + title + '\n' + newstyle * len(title) + '\n' * (after + 1)
            s = headermatch.sub(subf, s)

        # remove superfluous spacing when headers are adjacent
        s = re.sub(r'''(\n.+\n([][!"#$%&'()*+,./:;<=>?@\\^_`{|}~-])\2{2,}\n\n\n)\n*''', r'\1', s, flags=re.MULTILINE)
        # fix trailing space and spacing before link sections
        s = s.strip() + '\n'
        s = re.sub(r'''\n+((?:\.\. _[^\n]*\n)+)$''', r'\n\n\n\1', s)

        open(fn, 'w').write(s)

    print subprocess.check_output(['hg', 'diff'] + filenames)

if __name__ == '__main__':
    main()