comparison mercurial/templater.py @ 34458:a1b89c8ad32d

templater: add experimental support for extdata

This is minimal and non-controversial implementation of extdata() template
function. Originally extdata sources were exposed to the keyword namespace,
but I've changed it to a plain function for simplicity.

34457:2c3b8fa3211b

    parser,
    pycompat,
    registrar,
    revset as revsetmod,
    revsetlang,
    templatefilters,
    templatekw,
    util,
)

    ctx = mapping['ctx']
    chunks = ctx.diff(match=ctx.match([], getpatterns(0), getpatterns(1)))

    return ''.join(chunks)

@templatefunc('files(pattern)')
def files(context, mapping, args):
    """All files of the current changeset matching the pattern. See
    :hg:`help patterns`."""
    if not len(args) == 1:

34458:a1b89c8ad32d

    parser,
    pycompat,
    registrar,
    revset as revsetmod,
    revsetlang,
    scmutil,
    templatefilters,
    templatekw,
    util,
)

    ctx = mapping['ctx']
    chunks = ctx.diff(match=ctx.match([], getpatterns(0), getpatterns(1)))

    return ''.join(chunks)

@templatefunc('extdata(source)', argspec='source')
def extdata(context, mapping, args):
    """Show a text read from the specified extdata source. (EXPERIMENTAL)"""
    if 'source' not in args:
        # i18n: "extdata" is a keyword
        raise error.ParseError(_('extdata expects one argument'))

    source = evalstring(context, mapping, args['source'])
    cache = mapping['cache'].setdefault('extdata', {})
    ctx = mapping['ctx']
    if source in cache:
        data = cache[source]
    else:
        data = cache[source] = scmutil.extdatasource(ctx.repo(), source)
    return data.get(ctx.rev(), '')

@templatefunc('files(pattern)')
def files(context, mapping, args):
    """All files of the current changeset matching the pattern. See
    :hg:`help patterns`."""
    if not len(args) == 1: