mercurial/revset.py

18535:7068089c95a2

    # i18n: "adds" is a keyword
    pat = getstring(x, _("adds requires a pattern"))
    return checkstatus(repo, subset, pat, 1)

def ancestor(repo, subset, x):
    """``ancestor(single, single)``
    Greatest common ancestor of the two changesets.
    """
    # i18n: "ancestor" is a keyword
    l = getargs(x, 2, 2, _("ancestor requires two arguments"))
    r = list(repo)
    a = getset(repo, r, l[0])
    b = getset(repo, r, l[1])
    if len(a) != 1 or len(b) != 1:
        # i18n: "ancestor" is a keyword
        raise error.ParseError(_("ancestor arguments must be single revisions"))
    an = [repo[a[0]].ancestor(repo[b[0]]).rev()]

    return [r for r in an if r in subset]

def _ancestors(repo, subset, x, followfirst=False):
    args = getset(repo, list(repo), x)
    if not args:
        return []

18536:ae645d4f084c

    # i18n: "adds" is a keyword
    pat = getstring(x, _("adds requires a pattern"))
    return checkstatus(repo, subset, pat, 1)

def ancestor(repo, subset, x):
    """``ancestor(*changeset)``
    Greatest common ancestor of the changesets.

    Accepts 0 or more changesets.
    Will return empty list when passed no args.
    Greatest common ancestor of a single changeset is that changeset.
    """
    # i18n: "ancestor" is a keyword
    l = getlist(x)
    rl = list(repo)
    anc = None

    # (getset(repo, rl, i) for i in l) generates a list of lists
    rev = repo.changelog.rev
    ancestor = repo.changelog.ancestor
    node = repo.changelog.node
    for revs in (getset(repo, rl, i) for i in l):
        for r in revs:
            if anc is None:
                anc = r
            else:
                anc = rev(ancestor(node(anc), node(r)))

    if anc is not None and anc in subset:
        return [anc]
    return []

def _ancestors(repo, subset, x, followfirst=False):
    args = getset(repo, list(repo), x)
    if not args:
        return []