view mercurial/templatefilters.py @ 6139:989467e8e3a9

Fix bad behaviour when specifying an invalid date (issue700)

commit (aborts _after_ typing in a commit message)
backout (aborted after the initial revert)
tag (edited .hgtags and couldn't commit)
import (patch applied, then commit fails)
qnew (aborts on bad dates, but writes any valid date into the # Date header)
qrefresh (like qnew)
sign (like tag)
fetch (merge, merge, merge, merge, abort)

# template-filters.py - common template expansion filters
#
# Copyright 2005-2008 Matt Mackall <[e-mail]>
#
# This software may be used and distributed according to the terms
# of the GNU General Public License, incorporated herein by reference.

import cgi, re, os, time, urllib, textwrap
import util, templater

agescales = [("second", 1),
             ("minute", 60),
             ("hour", 3600),
             ("day", 3600 * 24),
             ("week", 3600 * 24 * 7),
             ("month", 3600 * 24 * 30),
             ("year", 3600 * 24 * 365)]

agescales.reverse()

def age(date):
    '''turn a (timestamp, tzoff) tuple into an age string.'''

    def plural(t, c):
        if c == 1:
            return t
        return t + "s"
    def fmt(t, c):
        return "%d %s" % (c, plural(t, c))

    now = time.time()
    then = date[0]
    delta = max(1, int(now - then))

    for t, s in agescales:
        n = delta / s
        if n >= 2 or s == 1:
            return fmt(t, n)

para_re = None
space_re = None

def fill(text, width):
    '''fill many paragraphs.'''
    global para_re, space_re
    if para_re is None:
        para_re = re.compile('(\n\n|\n\\s*[-*]\\s*)', re.M)
        space_re = re.compile(r'  +')

    def findparas():
        start = 0
        while True:
            m = para_re.search(text, start)
            if not m:
                w = len(text)
                while w > start and text[w-1].isspace(): w -= 1
                yield text[start:w], text[w:]
                break
            yield text[start:m.start(0)], m.group(1)
            start = m.end(1)

    return "".join([space_re.sub(' ', textwrap.fill(para, width)) + rest
                    for para, rest in findparas()])

def firstline(text):
    '''return the first line of text'''
    try:
        return text.splitlines(1)[0].rstrip('\r\n')
    except IndexError:
        return ''

def isodate(date):
    '''turn a (timestamp, tzoff) tuple into an iso 8631 date and time.'''
    return util.datestr(date, format='%Y-%m-%d %H:%M')

def hgdate(date):
    '''turn a (timestamp, tzoff) tuple into an hg cset timestamp.'''
    return "%d %d" % date

def nl2br(text):
    '''replace raw newlines with xhtml line breaks.'''
    return text.replace('\n', '<br/>\n')

def obfuscate(text):
    text = unicode(text, util._encoding, 'replace')
    return ''.join(['&#%d;' % ord(c) for c in text])

def domain(author):
    '''get domain of author, or empty string if none.'''
    f = author.find('@')
    if f == -1: return ''
    author = author[f+1:]
    f = author.find('>')
    if f >= 0: author = author[:f]
    return author

def person(author):
    '''get name of author, or else username.'''
    f = author.find('<')
    if f == -1: return util.shortuser(author)
    return author[:f].rstrip()

def indent(text, prefix):
    '''indent each non-empty line of text after first with prefix.'''
    lines = text.splitlines()
    num_lines = len(lines)
    def indenter():
        for i in xrange(num_lines):
            l = lines[i]
            if i and l.strip():
                yield prefix
            yield l
            if i < num_lines - 1 or text.endswith('\n'):
                yield '\n'
    return "".join(indenter())

def permissions(flags):
    if "l" in flags:
        return "lrwxrwxrwx"
    if "x" in flags:
        return "-rwxr-xr-x"
    return "-rw-r--r--"

filters = {
    "addbreaks": nl2br,
    "basename": os.path.basename,
    "age": age,
    "date": lambda x: util.datestr(x),
    "domain": domain,
    "email": util.email,
    "escape": lambda x: cgi.escape(x, True),
    "fill68": lambda x: fill(x, width=68),
    "fill76": lambda x: fill(x, width=76),
    "firstline": firstline,
    "tabindent": lambda x: indent(x, '\t'),
    "hgdate": hgdate,
    "isodate": isodate,
    "obfuscate": obfuscate,
    "permissions": permissions,
    "person": person,
    "rfc822date": lambda x: util.datestr(x, "%a, %d %b %Y %H:%M:%S"),
    "rfc3339date": lambda x: util.datestr(x, "%Y-%m-%dT%H:%M:%S", True, "%+03d:%02d"),
    "short": lambda x: x[:12],
    "shortdate": util.shortdate,
    "stringify": templater.stringify,
    "strip": lambda x: x.strip(),
    "urlescape": lambda x: urllib.quote(x),
    "user": lambda x: util.shortuser(x),
    "stringescape": lambda x: x.encode('string_escape'),
    }