comparison hgext/win32text.py @ 5967:f8ad3b76e923

Provide better context for custom Python encode/decode filters.

While some can function with just some text and an optional command name,
others may want a repository object, a ui object, and a file path.
Use the enhanced information to good effect in win32text.dumbdecode's warning.

5966:11af38a592ae

import re

# regexp for single LF without CR preceding.
re_single_lf = re.compile('(^|[^\r])\n', re.MULTILINE)

def dumbdecode(s, cmd):
    # warn if already has CRLF in repository.
    # it might cause unexpected eol conversion.
    # see issue 302:
    #   http://www.selenic.com/mercurial/bts/issue302
    if '\r\n' in s:
        u = ui.ui()
        u.warn(_('WARNING: file in repository already has CRLF line ending \n'
                 ' which does not need eol conversion by win32text plugin.\n'
                 ' Please reconsider encode/decode setting in'
                 ' mercurial.ini or .hg/hgrc\n'
                 ' before next commit.\n'))
    # replace single LF to CRLF
    return re_single_lf.sub('\\1\r\n', s)

def dumbencode(s, cmd):
    return s.replace('\r\n', '\n')

def clevertest(s, cmd):
    if '\0' in s: return False
    return True

def cleverdecode(s, cmd):
    if clevertest(s, cmd):
        return dumbdecode(s, cmd)
    return s

def cleverencode(s, cmd):
    if clevertest(s, cmd):
        return dumbencode(s, cmd)

5967:f8ad3b76e923

import re

# regexp for single LF without CR preceding.
re_single_lf = re.compile('(^|[^\r])\n', re.MULTILINE)

def dumbdecode(s, cmd, ui=None, repo=None, filename=None, **kwargs):
    # warn if already has CRLF in repository.
    # it might cause unexpected eol conversion.
    # see issue 302:
    #   http://www.selenic.com/mercurial/bts/issue302
    if '\r\n' in s and ui and filename and repo:
        ui.warn(_('WARNING: %s already has CRLF line endings\n'
                  'and does not need EOL conversion by the win32text plugin.\n'
                  'Before your next commit, please reconsider your '
                  'encode/decode settings in \nMercurial.ini or %s.\n') %
                (filename, repo.join('hgrc')))
    # replace single LF to CRLF
    return re_single_lf.sub('\\1\r\n', s)

def dumbencode(s, cmd):
    return s.replace('\r\n', '\n')

def clevertest(s, cmd):
    if '\0' in s: return False
    return True

def cleverdecode(s, cmd, **kwargs):
    if clevertest(s, cmd):
        return dumbdecode(s, cmd, **kwargs)
    return s

def cleverencode(s, cmd):
    if clevertest(s, cmd):
        return dumbencode(s, cmd)