pull: pre-filter remote phases before moving local ones
We were relying on the phase internals to filter out redundant phase
information from remove. However as we plan to integrate phase
movement inside the transaction, we want to avoid useless transaction
creation on no-op pulls.
Therefore we filter out all the information that already matches the current
repository state. This will let us create a transaction only when there is
actual phase movement needed.
import os
import glob
import unittest
import silenttestrunner
from mercurial.util import atomictempfile
class testatomictempfile(unittest.TestCase):
def test1_simple(self):
if os.path.exists('foo'):
os.remove('foo')
file = atomictempfile('foo')
(dir, basename) = os.path.split(file._tempname)
self.assertFalse(os.path.isfile('foo'))
self.assertTrue(basename in glob.glob('.foo-*'))
file.write('argh\n')
file.close()
self.assertTrue(os.path.isfile('foo'))
self.assertTrue(basename not in glob.glob('.foo-*'))
# discard() removes the temp file without making the write permanent
def test2_discard(self):
if os.path.exists('foo'):
os.remove('foo')
file = atomictempfile('foo')
(dir, basename) = os.path.split(file._tempname)
file.write('yo\n')
file.discard()
self.assertFalse(os.path.isfile('foo'))
self.assertTrue(basename not in os.listdir('.'))
# if a programmer screws up and passes bad args to atomictempfile, they
# get a plain ordinary TypeError, not infinite recursion
def test3_oops(self):
self.assertRaises(TypeError, atomictempfile)
if __name__ == '__main__':
silenttestrunner.main(__name__)