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view tests/test_fetch_command.py @ 890:78db88de9622

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Partial metadata rebuilding For highly active subversion repositories, it can be excruciatingly slow to pull updates one at a time from subversion. One way around this is to setup another mercurial repo that pulls new commits from svn periodicly (say every 5 minutes). When you want to update your repository, you can pull commits from this mercurial repository via native mercurial protocols, which will be much faster than pulling directly from svn. Unfortunately, your metadata will be out of date after doing so. Highly active repositories also tend to be very large, which means that it takes a long time to rebuild your metadata from scratch. To address this, this adds support to do a partial rebuild on the metadata by processing only revisions that have been added to the repository after the last revision we processed. With the rev map 1k revisions (~2 days) behind tip updatemeta is dramatically faster than rebuild meta: $ hg --time svn updatemeta Time: real 0.570 secs (user 0.480+0.000 sys 0.060+0.000) $ hg --time svn rebuildmeta Time: real 129.160 secs (user 128.570+0.000 sys 0.320+0.000)
author David Schleimer <dschleimer@fb.com>
date Sat, 12 May 2012 07:28:23 -0700
parents 20e73b5ab6f7
children 312f36a425f0
line wrap: on
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import test_util

import os
import unittest
import urllib

from mercurial import commands
from mercurial import hg
from mercurial import node
from mercurial import ui

class TestBasicRepoLayout(test_util.TestBase):

    def test_no_dates(self):
        repo = self._load_fixture_and_fetch('test_no_dates.svndump')
        local_epoch = repo[0].date()
        self.assertEqual(local_epoch[0], local_epoch[1])
        self.assertEqual(repo[1].date(), repo[2].date())

    def test_fresh_fetch_single_rev(self):
        repo = self._load_fixture_and_fetch('single_rev.svndump')
        self.assertEqual(node.hex(repo['tip'].node()),
                         '434ed487136c1b47c1e8f952edb4dc5a8e6328df')
        self.assertEqual(repo['tip'].extra()['convert_revision'],
                         'svn:df2126f7-00ab-4d49-b42c-7e981dde0bcf/trunk@2')
        self.assertEqual(repo['tip'], repo[0])

    def test_fresh_fetch_two_revs(self):
        repo = self._load_fixture_and_fetch('two_revs.svndump')
        self.assertEqual(node.hex(repo[0].node()),
                         '434ed487136c1b47c1e8f952edb4dc5a8e6328df')
        self.assertEqual(node.hex(repo['tip'].node()),
                         'c95251e0dd04697deee99b79cc407d7db76e6a5f')
        self.assertEqual(repo['tip'], repo[1])

    def test_branches(self):
        repo = self._load_fixture_and_fetch('simple_branch.svndump')
        self.assertEqual(node.hex(repo[0].node()),
                         'a1ff9f5d90852ce7f8e607fa144066b0a06bdc57')
        self.assertEqual(node.hex(repo['tip'].node()),
                         '545e36ed13615e39c5c8fb0c325109d8cb8e00c3')
        self.assertEqual(len(repo['tip'].parents()), 1)
        self.assertEqual(repo['tip'].parents()[0], repo['default'])
        self.assertEqual(repo['tip'].extra()['convert_revision'],
                         'svn:3cd547df-371e-4add-bccf-aba732a2baf5/branches/the_branch@4')
        self.assertEqual(repo['default'].extra()['convert_revision'],
                         'svn:3cd547df-371e-4add-bccf-aba732a2baf5/trunk@3')
        self.assertEqual(len(repo.heads()), 1)

    def test_two_branches_with_heads(self):
        repo = self._load_fixture_and_fetch('two_heads.svndump')
        self.assertEqual(node.hex(repo[0].node()),
                         '434ed487136c1b47c1e8f952edb4dc5a8e6328df')
        self.assertEqual(node.hex(repo['tip'].node()),
                         '1083037b18d85cd84fa211c5adbaeff0fea2cd9f')
        self.assertEqual(node.hex(repo['the_branch'].node()),
                         '4e256962fc5df545e2e0a51d0d1dc61c469127e6')
        self.assertEqual(node.hex(repo['the_branch'].parents()[0].node()),
                         'f1ff5b860f5dbb9a59ad0921a79da77f10f25109')
        self.assertEqual(len(repo['tip'].parents()), 1)
        self.assertEqual(repo['tip'], repo['default'])
        self.assertEqual(len(repo.heads()), 2)

    def test_many_special_cases_replay(self):
        repo = self._load_fixture_and_fetch('many_special_cases.svndump')
        self._many_special_cases_checks(repo)


    def test_many_special_cases_diff(self):
        repo = self._load_fixture_and_fetch('many_special_cases.svndump',
                                            stupid=True)
        self._many_special_cases_checks(repo)

    def _many_special_cases_checks(self, repo):
        self.assertEquals(node.hex(repo[0].node()),
                         '434ed487136c1b47c1e8f952edb4dc5a8e6328df')
        # two possible hashes for bw compat to hg < 1.5, since hg 1.5
        # sorts entries in extra()
        self.assertTrue(node.hex(repo['tip'].node()) in
                         ('e92012d8c170a0236c84166167f149c2e28548c6',
                         'b7bdc73041b1852563deb1ef3f4153c2fe4484f2'))
        self.assertEqual(node.hex(repo['the_branch'].node()),
                         '4e256962fc5df545e2e0a51d0d1dc61c469127e6')
        self.assertEqual(node.hex(repo['the_branch'].parents()[0].node()),
                         'f1ff5b860f5dbb9a59ad0921a79da77f10f25109')
        self.assertEqual(len(repo['tip'].parents()), 1)
        self.assertEqual(repo['tip'], repo['default'])
        self.assertEqual(len(repo.heads()), 2)

    def test_file_mixed_with_branches(self):
        repo = self._load_fixture_and_fetch('file_mixed_with_branches.svndump')
        self.assertEqual(node.hex(repo['default'].node()),
                         '434ed487136c1b47c1e8f952edb4dc5a8e6328df')
        assert 'README' not in repo
        assert '../branches' not in repo

    def test_files_copied_from_outside_btt(self):
        repo = self._load_fixture_and_fetch(
            'test_files_copied_from_outside_btt.svndump')
        self.assertEqual(node.hex(repo['tip'].node()),
                         '3c78170e30ddd35f2c32faa0d8646ab75bba4f73')
        self.assertEqual(len(repo.changelog), 2)

    def test_file_renamed_in_from_outside_btt(self):
        repo = self._load_fixture_and_fetch(
                    'file_renamed_in_from_outside_btt.svndump')
        self.assert_('LICENSE.file' in repo['default'])

    def test_renamed_dir_in_from_outside_btt_not_repo_root(self):
        repo = self._load_fixture_and_fetch(
                    'fetch_missing_files_subdir.svndump', subdir='foo')
        self.assertEqual(node.hex(repo['tip'].node()),
                         '269dcdd4361b2847e9f4288d4500e55d35df1f52')
        self.assert_('bar/alpha' in repo['tip'])
        self.assert_('foo' in repo['tip'])
        self.assert_('bar/alpha' not in repo['tip'].parents()[0])
        self.assert_('foo' in repo['tip'].parents()[0])

    def test_oldest_not_trunk_and_tag_vendor_branch(self):
        repo = self._load_fixture_and_fetch(
            'tagged_vendor_and_oldest_not_trunk.svndump')
        self.assertEqual(node.hex(repo['oldest'].node()),
                         '926671740dec045077ab20f110c1595f935334fa')
        self.assertEqual(repo['tip'].parents()[0].parents()[0],
                         repo['oldest'])
        self.assertEqual(node.hex(repo['tip'].node()),
                         '1a6c3f30911d57abb67c257ec0df3e7bc44786f7')

    def test_propedit_with_nothing_else(self, stupid=False):
        repo = self._load_fixture_and_fetch('branch_prop_edit.svndump',
                                            stupid=stupid)
        self.assertEqual(repo['tip'].description(), 'Commit bogus propchange.')
        self.assertEqual(repo['tip'].branch(), 'dev_branch')

    def test_propedit_with_nothing_else_stupid(self):
        self.test_propedit_with_nothing_else(stupid=True)

    def test_entry_deletion(self, stupid=False):
        repo = self._load_fixture_and_fetch('delentries.svndump',
                                            stupid=stupid)
        files = list(sorted(repo['tip'].manifest()))
        self.assertEqual(['aa', 'd1/c', 'd1/d2prefix'], files)

    def test_entry_deletion_stupid(self):
        self.test_entry_deletion(stupid=True)

    def test_fetch_when_trunk_has_no_files(self, stupid=False):
        repo = self._load_fixture_and_fetch('file_not_in_trunk_root.svndump', stupid=stupid)
        self.assertEqual(repo['tip'].branch(), 'default')

    def test_fetch_when_trunk_has_no_files_stupid(self):
        self.test_fetch_when_trunk_has_no_files(stupid=True)

    def test_path_quoting(self, stupid=False):
        repo_path = self.load_svndump('non_ascii_path_1.svndump')
        subdir = '/b\xC3\xB8b'
        quoted_subdir = urllib.quote(subdir)

        repo_url = test_util.fileurl(repo_path)
        wc_path = self.wc_path
        wc2_path = wc_path + '-2'

        ui = self.ui(stupid=stupid)

        commands.clone(ui, repo_url + subdir, wc_path)
        commands.clone(ui, repo_url + quoted_subdir, wc2_path)
        repo = hg.repository(ui, wc_path)
        repo2 = hg.repository(ui, wc2_path)

        self.assertEqual(repo['tip'].extra()['convert_revision'],
                         repo2['tip'].extra()['convert_revision'])
        self.assertEqual(len(repo), len(repo2))

        for r in repo:
            self.assertEqual(repo[r].hex(), repo2[r].hex())

    def test_path_quoting_stupid(self):
        self.test_path_quoting(True)

    def test_identical_fixtures(self):
        '''ensure that the non_ascii_path_N fixtures are identical'''
        fixturepaths = [
            os.path.join(test_util.FIXTURES, 'non_ascii_path_1.svndump'),
            os.path.join(test_util.FIXTURES, 'non_ascii_path_2.svndump'),
        ]
        self.assertMultiLineEqual(open(fixturepaths[0]).read(),
                                  open(fixturepaths[1]).read())

class TestStupidPull(test_util.TestBase):
    def test_stupid(self):
        repo = self._load_fixture_and_fetch('two_heads.svndump', stupid=True)
        self.assertEqual(node.hex(repo[0].node()),
                         '434ed487136c1b47c1e8f952edb4dc5a8e6328df')
        self.assertEqual(node.hex(repo['tip'].node()),
                         '1083037b18d85cd84fa211c5adbaeff0fea2cd9f')
        self.assertEqual(node.hex(repo['the_branch'].node()),
                         '4e256962fc5df545e2e0a51d0d1dc61c469127e6')
        self.assertEqual(repo['the_branch'].extra()['convert_revision'],
                         'svn:df2126f7-00ab-4d49-b42c-7e981dde0bcf/branches/the_branch@5')
        self.assertEqual(node.hex(repo['the_branch'].parents()[0].node()),
                         'f1ff5b860f5dbb9a59ad0921a79da77f10f25109')
        self.assertEqual(len(repo['tip'].parents()), 1)
        self.assertEqual(repo['default'].extra()['convert_revision'],
                         'svn:df2126f7-00ab-4d49-b42c-7e981dde0bcf/trunk@6')
        self.assertEqual(repo['tip'], repo['default'])
        self.assertEqual(len(repo.heads()), 2)

    def test_oldest_not_trunk_and_tag_vendor_branch(self):
        repo = self._load_fixture_and_fetch(
            'tagged_vendor_and_oldest_not_trunk.svndump',
            stupid=True)
        self.assertEqual(node.hex(repo['oldest'].node()),
                         '926671740dec045077ab20f110c1595f935334fa')
        self.assertEqual(repo['tip'].parents()[0].parents()[0],
                         repo['oldest'])
        self.assertEqual(node.hex(repo['tip'].node()),
                         '1a6c3f30911d57abb67c257ec0df3e7bc44786f7')

def suite():
    all_tests = [unittest.TestLoader().loadTestsFromTestCase(TestBasicRepoLayout),
           unittest.TestLoader().loadTestsFromTestCase(TestStupidPull),
          ]
    return unittest.TestSuite(all_tests)