status: prefer relative paths in Rust code … when the repository root is under the current directory, so the kernel needs to traverse fewer directory in every call to `read_dir` or `symlink_metadata`. Better yet would be to use libc functions like `openat` and `fstatat` to remove such repeated traversals entirely, but the standard library does not provide APIs based on those. Maybe with a crate like https://crates.io/crates/openat instead? Benchmarks of `rhg status` show that this patch is neutral in some configurations, and makes the command up to ~20% faster in others. Below is semi-arbitrary subset of results. The four numeric columns are: time (in seconds) with this changeset’s parent, time with this changeset, time difference (negative is better), time ratio (less than 1 is better). ``` mercurial-dirstate-v1 | default-plain-clean.no-iu.pbr | 0.0061 -> 0.0059: -0.0002 (0.97) mercurial-dirstate-v2 | default-plain-clean.no-iu.pbr | 0.0029 -> 0.0028: -0.0001 (0.97) mozilla-dirstate-v1 | default-plain-clean.no-iu.pbr | 0.2110 -> 0.2102: -0.0007 (1.00) mozilla-dirstate-v2 | default-copies-clean.ignored.pbr | 0.0489 -> 0.0401: -0.0088 (0.82) mozilla-dirstate-v2 | default-copies-clean.no-iu.pbr | 0.0479 -> 0.0393: -0.0085 (0.82) mozilla-dirstate-v2 | default-copies-large.all.pbr | 0.1262 -> 0.1210: -0.0051 (0.96) mozilla-dirstate-v2 | default-copies-small.ignored-unknown.pbr | 0.1262 -> 0.1200: -0.0062 (0.95) mozilla-dirstate-v2 | default-copies-small.ignored.pbr | 0.0536 -> 0.0417: -0.0119 (0.78) mozilla-dirstate-v2 | default-copies-small.no-iu.pbr | 0.0482 -> 0.0393: -0.0089 (0.81) mozilla-dirstate-v2 | default-plain-clean.ignored.pbr | 0.0518 -> 0.0402: -0.0116 (0.78) mozilla-dirstate-v2 | default-plain-clean.no-iu.pbr | 0.0481 -> 0.0392: -0.0088 (0.82) mozilla-dirstate-v2 | default-plain-large.all.pbr | 0.1271 -> 0.1218: -0.0052 (0.96) mozilla-dirstate-v2 | default-plain-small.ignored-unknown.pbr | 0.1225 -> 0.1202: -0.0022 (0.98) mozilla-dirstate-v2 | default-plain-small.ignored.pbr | 0.0510 -> 0.0418: -0.0092 (0.82) mozilla-dirstate-v2 | default-plain-small.no-iu.pbr | 0.0480 -> 0.0394: -0.0086 (0.82) netbeans-dirstate-v1 | default-plain-clean.no-iu.pbr | 0.1442 -> 0.1422: -0.0020 (0.99) netbeans-dirstate-v2 | default-plain-clean.no-iu.pbr | 0.0325 -> 0.0282: -0.0043 (0.87) ``` Differential Revision: https://phab.mercurial-scm.org/D12175

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from __future__ import absolute_import, print_function

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import sys

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import unittest

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if sys.version_info[0] < 3:

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    base_class = unittest._TextTestResult

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else:

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    base_class = unittest.TextTestResult

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class TestResult(base_class):

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    def __init__(self, options, *args, **kwargs):

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        super(TestResult, self).__init__(*args, **kwargs)

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        self._options = options

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        # unittest.TestResult didn't have skipped until 2.7. We need to

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        # polyfill it.

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        self.skipped = []

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        # We have a custom "ignored" result that isn't present in any Python

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        # unittest implementation. It is very similar to skipped. It may make

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        # sense to map it into skip some day.

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        self.ignored = []

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        self.times = []

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        self._firststarttime = None

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        # Data stored for the benefit of generating xunit reports.

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        self.successes = []

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        self.faildata = {}

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    def addFailure(self, test, reason):

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        print("FAILURE!", test, reason)

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    def addSuccess(self, test):

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        print("SUCCESS!", test)

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    def addError(self, test, err):

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        print("ERR!", test, err)

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    # Polyfill.

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    def addSkip(self, test, reason):

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        print("SKIP!", test, reason)

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    def addIgnore(self, test, reason):

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        print("IGNORE!", test, reason)

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    def onStart(self, test):

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        print("ON_START!", test)

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    def onEnd(self):

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        print("ON_END!")

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    def addOutputMismatch(self, test, ret, got, expected):

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        return False

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    def stopTest(self, test, interrupted=False):

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        super(TestResult, self).stopTest(test)