view tests/common-pattern.py @ 47072:4c041c71ec01

revlog: introduce an explicit tracking of what the revlog is about

Since the dawn of time, people have been forced to rely to lossy introspection
of the index filename to determine what the purpose and role of the revlog they
encounter is. This is hacky, error prone, inflexible, abstraction-leaky,
<insert-your-own-complaints-here>.

In f63299ee7e4d Raphaël introduced a new attribute to track this information:
`revlog_kind`. However it is initialized in an odd place and various instances
end up not having it set. In addition is only tracking some of the information
we end up having to introspect in various pieces of code.

So we add a new attribute that holds more data and is more strictly enforced.
This work is done in collaboration with Raphaël.

The `revlog_kind` one will be removed/adapted in the next changeset. We expect
to be able to clean up various existing piece of code and to simplify coming
work around the newer revlog format.

Differential Revision: https://phab.mercurial-scm.org/D10352

# 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'checkheads%253Drelated%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'stream%253Dv2',
        # (the replacement patterns)
        br'$USUAL_BUNDLE_CAPS$',
    ),
    (
        br'bundlecaps=HG20%2Cbundle2%3DHG20%250A'
        br'bookmarks%250A'
        br'changegroup%253D01%252C02%250A'
        br'checkheads%3Drelated%0A'
        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'checkheads%3Drelated%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'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'checkheads%3Drelated%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',
        # (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'stream%3Dv2',
        # (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'$ENOENT$': (
        # IOError in Python does not have the same error message
        # than in Rust, and automatic conversion is not possible
        # because of module member privacy.
        br'No such file or directory \(os error 2\)',
        # 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',
    ),
    br'$EADDRNOTAVAIL$': (
        # strerror()
        br'Cannot assign requested address',
        # FormatMessage(WSAEADDRNOTAVAIL)
    ),
}

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
        ]
    )