view tests/common-pattern.py @ 39473:b6db2e80a9ce

ancestors: actually iterate over ancestors in topological order (issue5979)

This code previously used a dequeue logic, the first ancestors seen were the
first ancestors to be emitted. In branching/merging situations, it can result
in ancestors being yielded before their descendants, breaking the object
contract.

We got affected by this issue while working on the copy tracing code. At about
the same time, Axel Hecht <[e-mail]> reported the issue and provided
the test case used in this changeset. Thanks Axel.

Running `hg perfancestors` does not show a significant difference between the
old and the new version.

# common patterns in test at can safely be replaced
from __future__ import absolute_import

import os

substitutions = [
    # list of possible compressions
    (br'(zstd,)?zlib,none,bzip2',
     br'$USUAL_COMPRESSIONS$'
    ),
    (br'=(zstd,)?zlib',
     br'=$BUNDLE2_COMPRESSIONS$'
    ),
    # capabilities sent through http
    (br'bundlecaps=HG20%2Cbundle2%3DHG20%250A'
     br'bookmarks%250A'
     br'changegroup%253D01%252C02%250A'
     br'digests%253Dmd5%252Csha1%252Csha512%250A'
     br'error%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250A'
     br'hgtagsfnodes%250A'
     br'listkeys%250A'
     br'phases%253Dheads%250A'
     br'pushkey%250A'
     br'remote-changegroup%253Dhttp%252Chttps%250A'
     br'rev-branch-cache%250A'
     br'stream%253Dv2',
     # (the replacement patterns)
     br'$USUAL_BUNDLE_CAPS$'
    ),
    (br'bundlecaps=HG20%2Cbundle2%3DHG20%250A'
     br'bookmarks%250A'
     br'changegroup%253D01%252C02%250A'
     br'digests%253Dmd5%252Csha1%252Csha512%250A'
     br'error%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250A'
     br'hgtagsfnodes%250A'
     br'listkeys%250A'
     br'phases%253Dheads%250A'
     br'pushkey%250A'
     br'remote-changegroup%253Dhttp%252Chttps',
     # (the replacement patterns)
     br'$USUAL_BUNDLE_CAPS_SERVER$'
     ),
    # bundle2 capabilities sent through ssh
    (br'bundle2=HG20%0A'
     br'bookmarks%0A'
     br'changegroup%3D01%2C02%0A'
     br'digests%3Dmd5%2Csha1%2Csha512%0A'
     br'error%3Dabort%2Cunsupportedcontent%2Cpushraced%2Cpushkey%0A'
     br'hgtagsfnodes%0A'
     br'listkeys%0A'
     br'phases%3Dheads%0A'
     br'pushkey%0A'
     br'remote-changegroup%3Dhttp%2Chttps%0A'
     br'rev-branch-cache%0A'
     br'stream%3Dv2',
     # (replacement patterns)
     br'$USUAL_BUNDLE2_CAPS$'
    ),
    # bundle2 capabilities advertised by the server
    (br'bundle2=HG20%0A'
     br'bookmarks%0A'
     br'changegroup%3D01%2C02%0A'
     br'digests%3Dmd5%2Csha1%2Csha512%0A'
     br'error%3Dabort%2Cunsupportedcontent%2Cpushraced%2Cpushkey%0A'
     br'hgtagsfnodes%0A'
     br'listkeys%0A'
     br'phases%3Dheads%0A'
     br'pushkey%0A'
     br'remote-changegroup%3Dhttp%2Chttps%0A'
     br'rev-branch-cache',
     # (replacement patterns)
     br'$USUAL_BUNDLE2_CAPS_SERVER$'
     ),
    (
     br'bundle2=HG20%0A'
     br'bookmarks%0A'
     br'changegroup%3D01%2C02%0A'
     br'digests%3Dmd5%2Csha1%2Csha512%0A'
     br'error%3Dabort%2Cunsupportedcontent%2Cpushraced%2Cpushkey%0A'
     br'hgtagsfnodes%0A'
     br'listkeys%0A'
     br'pushkey%0A'
     br'remote-changegroup%3Dhttp%2Chttps%0A'
     br'rev-branch-cache',
     # (replacement patterns)
     br'$USUAL_BUNDLE2_CAPS_NO_PHASES$'
    ),
    # HTTP access log dates
    (br' - - \[\d\d/.../2\d\d\d \d\d:\d\d:\d\d] "(GET|PUT|POST)',
     lambda m: br' - - [$LOGDATE$] "' + m.group(1)
    ),
    # HTTP error log dates
    (br' - - \[\d\d/.../2\d\d\d \d\d:\d\d:\d\d] (HG error:|Exception)',
     lambda m: br' - - [$ERRDATE$] ' + m.group(1)
    ),
    # HTTP header dates- RFC 1123
    (br'([Dd]ate): [A-Za-z]{3}, \d\d [A-Za-z]{3} \d{4} \d\d:\d\d:\d\d GMT',
     lambda m: br'%s: $HTTP_DATE$' % m.group(1)
    ),
    # LFS expiration value
    (br'"expires_at": "\d{4}-\d\d-\d\dT\d\d:\d\d:\d\dZ"',
     br'"expires_at": "$ISO_8601_DATE_TIME$"'
    ),
    # Windows has an extra '/' in the following lines that get globbed away:
    #   pushing to file:/*/$TESTTMP/r2 (glob)
    #   comparing with file:/*/$TESTTMP/r2 (glob)
    #   sub/maybelarge.dat: largefile 34..9c not available from
    #       file:/*/$TESTTMP/largefiles-repo (glob)
    (br'(.*file:/)/?(/\$TESTTMP.*)',
     lambda m: m.group(1) + b'*' + m.group(2) + b' (glob)'
    ),
]

# Various platform error strings, keyed on a common replacement string
_errors = {
    br'$ENOENT$': (
        # strerror()
        br'No such file or directory',

        # FormatMessage(ERROR_FILE_NOT_FOUND)
        br'The system cannot find the file specified',
    ),
    br'$ENOTDIR$': (
        # strerror()
        br'Not a directory',

        # FormatMessage(ERROR_PATH_NOT_FOUND)
        br'The system cannot find the path specified',
    ),
    br'$ECONNRESET$': (
        # strerror()
        br'Connection reset by peer',

        # FormatMessage(WSAECONNRESET)
        br'An existing connection was forcibly closed by the remote host',
    ),
    br'$EADDRINUSE$': (
        # strerror()
        br'Address already in use',

        # FormatMessage(WSAEADDRINUSE)
        br'Only one usage of each socket address'
        br' \(protocol/network address/port\) is normally permitted',
    ),
}

for replace, msgs in _errors.items():
    substitutions.extend((m, replace) for m in msgs)

# Output lines on Windows that can be autocorrected for '\' vs '/' path
# differences.
_winpathfixes = [
    # cloning subrepo s\ss from $TESTTMP/t/s/ss
    # cloning subrepo foo\bar from http://localhost:$HGPORT/foo/bar
    br'(?m)^cloning subrepo \S+\\.*',

    # pulling from $TESTTMP\issue1852a
    br'(?m)^pulling from \$TESTTMP\\.*',

    # pushing to $TESTTMP\a
    br'(?m)^pushing to \$TESTTMP\\.*',

    # pushing subrepo s\ss to $TESTTMP/t/s/ss
    br'(?m)^pushing subrepo \S+\\\S+ to.*',

    # moving d1\d11\a1 to d3/d11/a1
    br'(?m)^moving \S+\\.*',

    # d1\a: not recording move - dummy does not exist
    br'\S+\\\S+: not recording move .+',

    # reverting s\a
    br'(?m)^reverting (?!subrepo ).*\\.*',

    # saved backup bundle to
    #     $TESTTMP\test\.hg\strip-backup/443431ffac4f-2fc5398a-backup.hg
    br'(?m)^saved backup bundle to \$TESTTMP.*\.hg',

    # no changes made to subrepo s\ss since last push to ../tcc/s/ss
    br'(?m)^no changes made to subrepo \S+\\\S+ since.*',

    # changeset 5:9cc5aa7204f0: stuff/maybelarge.dat references missing
    #     $TESTTMP\largefiles-repo-hg\.hg\largefiles\76..38
    br'(?m)^changeset .* references (corrupted|missing) \$TESTTMP\\.*',

    # stuff/maybelarge.dat: largefile 76..38 not available from
    #     file:/*/$TESTTMP\largefiles-repo (glob)
    br'.*: largefile \S+ not available from file:/\*/.+',
]

if os.name == 'nt':
    substitutions.extend([(s, lambda match: match.group().replace(b'\\', b'/'))
                          for s in _winpathfixes])