view tests/test-walkrepo.py @ 13174:be7e8e9bc5e5

mq: update .hgsubstate if subrepos are clean (issue2499)

This patch prevents MQ from creating an inconsistent subrepo state. If
the .hgsub file has been changed, and none of the subrepos have
uncommitted changes, creating or updating a patch (using qnew, qrefresh,
or qrecord) will update .hgsubstate accordingly.

If any subrepos _do_ have uncommitted changes, qnew/qrefresh/qrecord
will abort.

Thanks to pmezard for proposing this solution.

import os
from mercurial import hg, ui
from mercurial.util import walkrepos
from os import mkdir, chdir
from os.path import join as pjoin

u = ui.ui()
sym = hasattr(os, 'symlink') and hasattr(os.path, 'samestat')

hg.repository(u, 'top1', create=1)
mkdir('subdir')
chdir('subdir')
hg.repository(u, 'sub1', create=1)
mkdir('subsubdir')
chdir('subsubdir')
hg.repository(u, 'subsub1', create=1)
chdir(os.path.pardir)
if sym:
    os.symlink(os.path.pardir, 'circle')
    os.symlink(pjoin('subsubdir', 'subsub1'), 'subsub1')

def runtest():
    reposet = frozenset(walkrepos('.', followsym=True))
    if sym and (len(reposet) != 3):
        print "reposet = %r" % (reposet,)
        print "Found %d repositories when I should have found 3" % (len(reposet),)
    if (not sym) and (len(reposet) != 2):
        print "reposet = %r" % (reposet,)
        print "Found %d repositories when I should have found 2" % (len(reposet),)
    sub1set = frozenset((pjoin('.', 'sub1'),
                         pjoin('.', 'circle', 'subdir', 'sub1')))
    if len(sub1set & reposet) != 1:
        print "sub1set = %r" % (sub1set,)
        print "reposet = %r" % (reposet,)
        print "sub1set and reposet should have exactly one path in common."
    sub2set = frozenset((pjoin('.', 'subsub1'),
                         pjoin('.', 'subsubdir', 'subsub1')))
    if len(sub2set & reposet) != 1:
        print "sub2set = %r" % (sub2set,)
        print "reposet = %r" % (reposet,)
        print "sub1set and reposet should have exactly one path in common."
    sub3 = pjoin('.', 'circle', 'top1')
    if sym and not (sub3 in reposet):
        print "reposet = %r" % (reposet,)
        print "Symbolic links are supported and %s is not in reposet" % (sub3,)

runtest()
if sym:
    # Simulate not having symlinks.
    del os.path.samestat
    sym = False
    runtest()