Patchwork D12006: blackbox: change year in logs to ISO 8601 format

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Submitter phabricator
Date Jan. 18, 2022, 5:46 a.m.
Message ID <differential-rev-PHID-DREV-3yoyhsswuwkf4d6tcvif-req@mercurial-scm.org>
Download mbox | patch
Permalink /patch/50332/
State New
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Comments

phabricator - Jan. 18, 2022, 5:46 a.m.
valentin.gatienbaron created this revision.
Herald added a reviewer: hg-reviewers.
Herald added a subscriber: mercurial-patches.

REVISION SUMMARY
  AFAIK, year/month/day is not a format than anyone uses. It seems more
  sensible to me to use ISO 8601, as that's standard and unambiguously
  year-month-day.
  
  Compatibility-wise, I think it's acceptable to change the default
  format. It's most for human consumption. It's plausible that a few
  tools parse this format, but it has already changed in the past (for
  instance to add the current revision).

REPOSITORY
  rHG Mercurial

BRANCH
  default

REVISION DETAIL
  https://phab.mercurial-scm.org/D12006

AFFECTED FILES
  hgext/blackbox.py
  rust/rhg/src/blackbox.rs
  tests/test-blackbox.t
  tests/test-devel-warnings.t
  tests/test-obsolete-tag-cache.t
  tests/test-tags.t

CHANGE DETAILS




To: valentin.gatienbaron, #hg-reviewers
Cc: mercurial-patches, mercurial-devel

Patch

diff --git a/tests/test-tags.t b/tests/test-tags.t
--- a/tests/test-tags.t
+++ b/tests/test-tags.t
@@ -146,12 +146,12 @@ 
   $ hg identify
   b9154636be93 tip
   $ hg blackbox -l 6
-  1970/01/01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> identify
-  1970/01/01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> writing 48 bytes to cache/hgtagsfnodes1
-  1970/01/01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> 0/2 cache hits/lookups in * seconds (glob)
-  1970/01/01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> writing .hg/cache/tags2-visible with 1 tags
-  1970/01/01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> identify exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> blackbox -l 6
+  1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> identify
+  1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> writing 48 bytes to cache/hgtagsfnodes1
+  1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> 0/2 cache hits/lookups in * seconds (glob)
+  1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> writing .hg/cache/tags2-visible with 1 tags
+  1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> identify exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> blackbox -l 6
 
 Failure to acquire lock results in no write
 
@@ -160,12 +160,12 @@ 
   $ hg identify
   b9154636be93 tip
   $ hg blackbox -l 6
-  1970/01/01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> identify
-  1970/01/01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> not writing .hg/cache/hgtagsfnodes1 because lock cannot be acquired
-  1970/01/01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> 0/2 cache hits/lookups in * seconds (glob)
-  1970/01/01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> writing .hg/cache/tags2-visible with 1 tags
-  1970/01/01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> identify exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> blackbox -l 6
+  1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> identify
+  1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> not writing .hg/cache/hgtagsfnodes1 because lock cannot be acquired
+  1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> 0/2 cache hits/lookups in * seconds (glob)
+  1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> writing .hg/cache/tags2-visible with 1 tags
+  1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> identify exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @b9154636be938d3d431e75a7c906504a079bfe07 (5000)> blackbox -l 6
 
   $ fnodescacheexists
   no fnodes cache
@@ -226,9 +226,9 @@ 
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (branch merge, don't forget to commit)
   $ hg blackbox -l3
-  1970/01/01 00:00:00.000 bob @c8edf04160c7f731e4589d66ab3ab3486a64ac28 (5000)> merge 1
-  1970/01/01 00:00:00.000 bob @c8edf04160c7f731e4589d66ab3ab3486a64ac28+b9154636be938d3d431e75a7c906504a079bfe07 (5000)> merge 1 exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @c8edf04160c7f731e4589d66ab3ab3486a64ac28+b9154636be938d3d431e75a7c906504a079bfe07 (5000)> blackbox -l3
+  1970-01-01 00:00:00.000 bob @c8edf04160c7f731e4589d66ab3ab3486a64ac28 (5000)> merge 1
+  1970-01-01 00:00:00.000 bob @c8edf04160c7f731e4589d66ab3ab3486a64ac28+b9154636be938d3d431e75a7c906504a079bfe07 (5000)> merge 1 exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @c8edf04160c7f731e4589d66ab3ab3486a64ac28+b9154636be938d3d431e75a7c906504a079bfe07 (5000)> blackbox -l3
   $ hg id
   c8edf04160c7+b9154636be93+ tip
   $ hg status
@@ -364,12 +364,12 @@ 
   bar                                1:78391a272241
 
   $ hg blackbox -l 6
-  1970/01/01 00:00:00.000 bob @8dbfe60eff306a54259cfe007db9e330e7ecf866 (5000)> tags
-  1970/01/01 00:00:00.000 bob @8dbfe60eff306a54259cfe007db9e330e7ecf866 (5000)> writing 24 bytes to cache/hgtagsfnodes1
-  1970/01/01 00:00:00.000 bob @8dbfe60eff306a54259cfe007db9e330e7ecf866 (5000)> 3/4 cache hits/lookups in * seconds (glob)
-  1970/01/01 00:00:00.000 bob @8dbfe60eff306a54259cfe007db9e330e7ecf866 (5000)> writing .hg/cache/tags2-visible with 1 tags
-  1970/01/01 00:00:00.000 bob @8dbfe60eff306a54259cfe007db9e330e7ecf866 (5000)> tags exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @8dbfe60eff306a54259cfe007db9e330e7ecf866 (5000)> blackbox -l 6
+  1970-01-01 00:00:00.000 bob @8dbfe60eff306a54259cfe007db9e330e7ecf866 (5000)> tags
+  1970-01-01 00:00:00.000 bob @8dbfe60eff306a54259cfe007db9e330e7ecf866 (5000)> writing 24 bytes to cache/hgtagsfnodes1
+  1970-01-01 00:00:00.000 bob @8dbfe60eff306a54259cfe007db9e330e7ecf866 (5000)> 3/4 cache hits/lookups in * seconds (glob)
+  1970-01-01 00:00:00.000 bob @8dbfe60eff306a54259cfe007db9e330e7ecf866 (5000)> writing .hg/cache/tags2-visible with 1 tags
+  1970-01-01 00:00:00.000 bob @8dbfe60eff306a54259cfe007db9e330e7ecf866 (5000)> tags exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @8dbfe60eff306a54259cfe007db9e330e7ecf866 (5000)> blackbox -l 6
 
 On junk data + missing cache entries, hg also overwrites the junk.
 
@@ -474,12 +474,12 @@ 
   bar                                1:78391a272241
 
   $ hg blackbox -l 6
-  1970/01/01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> tags
-  1970/01/01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> couldn't write cache/hgtagsfnodes1: [Errno *] * (glob)
-  1970/01/01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> 2/4 cache hits/lookups in * seconds (glob)
-  1970/01/01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> writing .hg/cache/tags2-visible with 1 tags
-  1970/01/01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> tags exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> blackbox -l 6
+  1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> tags
+  1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> couldn't write cache/hgtagsfnodes1: [Errno *] * (glob)
+  1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> 2/4 cache hits/lookups in * seconds (glob)
+  1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> writing .hg/cache/tags2-visible with 1 tags
+  1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> tags exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> blackbox -l 6
 
   $ chmod a+w .hg/cache/hgtagsfnodes1
 
@@ -489,12 +489,12 @@ 
   bar                                1:78391a272241
 
   $ hg blackbox -l 6
-  1970/01/01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> tags
-  1970/01/01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> writing 24 bytes to cache/hgtagsfnodes1
-  1970/01/01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> 2/4 cache hits/lookups in * seconds (glob)
-  1970/01/01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> writing .hg/cache/tags2-visible with 1 tags
-  1970/01/01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> tags exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> blackbox -l 6
+  1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> tags
+  1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> writing 24 bytes to cache/hgtagsfnodes1
+  1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> 2/4 cache hits/lookups in * seconds (glob)
+  1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> writing .hg/cache/tags2-visible with 1 tags
+  1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> tags exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @b968051b5cf3f624b771779c6d5f84f1d4c3fb5d (5000)> blackbox -l 6
 
   $ f --size .hg/cache/hgtagsfnodes1
   .hg/cache/hgtagsfnodes1: size=168
@@ -518,11 +518,11 @@ 
   bar                                1:78391a272241
 
   $ hg blackbox -l 5
-  1970/01/01 00:00:00.000 bob @0c192d7d5e6b78a714de54a2e9627952a877e25a (5000)> writing 24 bytes to cache/hgtagsfnodes1
-  1970/01/01 00:00:00.000 bob @0c192d7d5e6b78a714de54a2e9627952a877e25a (5000)> 2/4 cache hits/lookups in * seconds (glob)
-  1970/01/01 00:00:00.000 bob @0c192d7d5e6b78a714de54a2e9627952a877e25a (5000)> writing .hg/cache/tags2-visible with 1 tags
-  1970/01/01 00:00:00.000 bob @0c192d7d5e6b78a714de54a2e9627952a877e25a (5000)> tags exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @0c192d7d5e6b78a714de54a2e9627952a877e25a (5000)> blackbox -l 5
+  1970-01-01 00:00:00.000 bob @0c192d7d5e6b78a714de54a2e9627952a877e25a (5000)> writing 24 bytes to cache/hgtagsfnodes1
+  1970-01-01 00:00:00.000 bob @0c192d7d5e6b78a714de54a2e9627952a877e25a (5000)> 2/4 cache hits/lookups in * seconds (glob)
+  1970-01-01 00:00:00.000 bob @0c192d7d5e6b78a714de54a2e9627952a877e25a (5000)> writing .hg/cache/tags2-visible with 1 tags
+  1970-01-01 00:00:00.000 bob @0c192d7d5e6b78a714de54a2e9627952a877e25a (5000)> tags exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @0c192d7d5e6b78a714de54a2e9627952a877e25a (5000)> blackbox -l 5
 
   $ f --size .hg/cache/hgtagsfnodes1
   .hg/cache/hgtagsfnodes1: size=120
@@ -535,12 +535,12 @@ 
   bar                                1:78391a272241
 
   $ hg blackbox -l 6
-  1970/01/01 00:00:00.000 bob @035f65efb448350f4772141702a81ab1df48c465 (5000)> tags
-  1970/01/01 00:00:00.000 bob @035f65efb448350f4772141702a81ab1df48c465 (5000)> writing 24 bytes to cache/hgtagsfnodes1
-  1970/01/01 00:00:00.000 bob @035f65efb448350f4772141702a81ab1df48c465 (5000)> 3/4 cache hits/lookups in * seconds (glob)
-  1970/01/01 00:00:00.000 bob @035f65efb448350f4772141702a81ab1df48c465 (5000)> writing .hg/cache/tags2-visible with 1 tags
-  1970/01/01 00:00:00.000 bob @035f65efb448350f4772141702a81ab1df48c465 (5000)> tags exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @035f65efb448350f4772141702a81ab1df48c465 (5000)> blackbox -l 6
+  1970-01-01 00:00:00.000 bob @035f65efb448350f4772141702a81ab1df48c465 (5000)> tags
+  1970-01-01 00:00:00.000 bob @035f65efb448350f4772141702a81ab1df48c465 (5000)> writing 24 bytes to cache/hgtagsfnodes1
+  1970-01-01 00:00:00.000 bob @035f65efb448350f4772141702a81ab1df48c465 (5000)> 3/4 cache hits/lookups in * seconds (glob)
+  1970-01-01 00:00:00.000 bob @035f65efb448350f4772141702a81ab1df48c465 (5000)> writing .hg/cache/tags2-visible with 1 tags
+  1970-01-01 00:00:00.000 bob @035f65efb448350f4772141702a81ab1df48c465 (5000)> tags exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @035f65efb448350f4772141702a81ab1df48c465 (5000)> blackbox -l 6
   $ f --size .hg/cache/hgtagsfnodes1
   .hg/cache/hgtagsfnodes1: size=144
 
diff --git a/tests/test-obsolete-tag-cache.t b/tests/test-obsolete-tag-cache.t
--- a/tests/test-obsolete-tag-cache.t
+++ b/tests/test-obsolete-tag-cache.t
@@ -73,11 +73,11 @@ 
   55482a6fb4b1881fa8f746fd52cf6f096bb21c89 test1
 
   $ hg blackbox -l 5
-  1970/01/01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> tags
-  1970/01/01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> 2/2 cache hits/lookups in * seconds (glob)
-  1970/01/01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> writing .hg/cache/tags2-visible with 2 tags
-  1970/01/01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> tags exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> blackbox -l 5
+  1970-01-01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> tags
+  1970-01-01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> 2/2 cache hits/lookups in * seconds (glob)
+  1970-01-01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> writing .hg/cache/tags2-visible with 2 tags
+  1970-01-01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> tags exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> blackbox -l 5
 
 Hiding another changeset should cause the filtered hash to change
 
@@ -97,11 +97,11 @@ 
   042eb6bfcc4909bad84a1cbf6eb1ddf0ab587d41 head2
 
   $ hg blackbox -l 5
-  1970/01/01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> tags
-  1970/01/01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> 1/1 cache hits/lookups in * seconds (glob)
-  1970/01/01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> writing .hg/cache/tags2-visible with 1 tags
-  1970/01/01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> tags exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> blackbox -l 5
+  1970-01-01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> tags
+  1970-01-01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> 1/1 cache hits/lookups in * seconds (glob)
+  1970-01-01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> writing .hg/cache/tags2-visible with 1 tags
+  1970-01-01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> tags exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> blackbox -l 5
 
 Resolving tags on an unfiltered repo writes a separate tags cache
 
@@ -118,8 +118,8 @@ 
   d75775ffbc6bca1794d300f5571272879bd280da test2
 
   $ hg blackbox -l 5
-  1970/01/01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> --hidden tags
-  1970/01/01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> 2/2 cache hits/lookups in * seconds (glob)
-  1970/01/01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> writing .hg/cache/tags2 with 3 tags
-  1970/01/01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> --hidden tags exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> blackbox -l 5
+  1970-01-01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> --hidden tags
+  1970-01-01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> 2/2 cache hits/lookups in * seconds (glob)
+  1970-01-01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> writing .hg/cache/tags2 with 3 tags
+  1970-01-01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> --hidden tags exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @2942a772f72a444bef4bef13874d515f50fa27b6 (5000)> blackbox -l 5
diff --git a/tests/test-devel-warnings.t b/tests/test-devel-warnings.t
--- a/tests/test-devel-warnings.t
+++ b/tests/test-devel-warnings.t
@@ -282,12 +282,12 @@ 
 
 #if no-chg no-pyoxidizer
   $ hg blackbox -l 7
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> devel-warn: foorbar is deprecated, go shopping
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> devel-warn: foorbar is deprecated, go shopping
   (compatibility will be dropped after Mercurial-42.1337, update your code.) at: $TESTTMP/buggylocking.py:* (oldanddeprecated) (glob)
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated --traceback
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> devel-warn: foorbar is deprecated, go shopping
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated --traceback
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> devel-warn: foorbar is deprecated, go shopping
   (compatibility will be dropped after Mercurial-42.1337, update your code.) at:
    */hg:* in <module> (glob) (?)
    */mercurial/dispatch.py:* in run (glob)
@@ -303,17 +303,17 @@ 
    */mercurial/dispatch.py:* in <lambda> (glob)
    */mercurial/util.py:* in check (glob)
    $TESTTMP/buggylocking.py:* in oldanddeprecated (glob)
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated --traceback exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> blackbox -l 7
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated --traceback exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> blackbox -l 7
 #endif
 #if chg no-pyoxidizer
   $ hg blackbox -l 7
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> devel-warn: foorbar is deprecated, go shopping
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> devel-warn: foorbar is deprecated, go shopping
   (compatibility will be dropped after Mercurial-42.1337, update your code.) at: $TESTTMP/buggylocking.py:* (oldanddeprecated) (glob)
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated --traceback
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> devel-warn: foorbar is deprecated, go shopping
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated --traceback
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> devel-warn: foorbar is deprecated, go shopping
   (compatibility will be dropped after Mercurial-42.1337, update your code.) at:
    */hg:* in <module> (glob)
    */mercurial/dispatch.py:* in run (glob)
@@ -352,17 +352,17 @@ 
    */mercurial/dispatch.py:* in <lambda> (glob)
    */mercurial/util.py:* in check (glob)
    $TESTTMP/buggylocking.py:* in oldanddeprecated (glob)
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated --traceback exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> blackbox -l 7
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated --traceback exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> blackbox -l 7
 #endif
 #if pyoxidizer
   $ hg blackbox -l 7
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> devel-warn: foorbar is deprecated, go shopping
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> devel-warn: foorbar is deprecated, go shopping
   (compatibility will be dropped after Mercurial-42.1337, update your code.) at: $TESTTMP/buggylocking.py:* (oldanddeprecated) (glob)
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated --traceback
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> devel-warn: foorbar is deprecated, go shopping
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated --traceback
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> devel-warn: foorbar is deprecated, go shopping
   (compatibility will be dropped after Mercurial-42.1337, update your code.) at:
    <string>:* in <module> (glob)
    mercurial.dispatch:* in run (glob)
@@ -378,8 +378,8 @@ 
    mercurial.dispatch:* in <lambda> (glob)
    mercurial.util:* in check (glob)
    $TESTTMP/buggylocking.py:* in oldanddeprecated (glob)
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated --traceback exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> blackbox -l 7
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> oldanddeprecated --traceback exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @cb9a9f314b8b07ba71012fcdbc544b5a4d82ff5b (5000)> blackbox -l 7
 #endif
 
 Test programming error failure:
diff --git a/tests/test-blackbox.t b/tests/test-blackbox.t
--- a/tests/test-blackbox.t
+++ b/tests/test-blackbox.t
@@ -32,10 +32,10 @@ 
   $ echo a > a
   $ hg add a
   $ hg blackbox --config blackbox.dirty=True
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> init blackboxtest exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> add a
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> add a exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000+ (5000)> blackbox --config *blackbox.dirty=True* (glob)
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> init blackboxtest exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> add a
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> add a exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000+ (5000)> blackbox --config *blackbox.dirty=True* (glob)
 
 failure exit code
   $ rm ./.hg/blackbox.log
@@ -43,17 +43,17 @@ 
   non-existent: $ENOENT$
   [1]
   $ hg blackbox
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> add non-existent
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> add non-existent exited 1 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> blackbox
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> add non-existent
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> add non-existent exited 1 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> blackbox
 
 abort exit code
   $ rm ./.hg/blackbox.log
   $ hg abortcmd 2> /dev/null
   [255]
   $ hg blackbox -l 2
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> abortcmd exited 255 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> blackbox -l 2
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> abortcmd exited 255 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> blackbox -l 2
 
 unhandled exception
   $ rm ./.hg/blackbox.log
@@ -67,27 +67,27 @@ 
   [1]
 #endif
   $ hg blackbox -l 2
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> crash exited 1 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> blackbox -l 2
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> crash exited 1 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> blackbox -l 2
 
 alias expansion is logged
   $ rm ./.hg/blackbox.log
   $ hg confuse
   $ hg blackbox
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> confuse
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> alias 'confuse' expands to 'log --limit 3'
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> confuse exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> blackbox
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> confuse
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> alias 'confuse' expands to 'log --limit 3'
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> confuse exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> blackbox
 
 recursive aliases work correctly
   $ rm ./.hg/blackbox.log
   $ hg so-confusing
   $ hg blackbox
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> so-confusing
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> alias 'so-confusing' expands to 'confuse --style compact'
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> alias 'confuse' expands to 'log --limit 3'
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> so-confusing exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> blackbox
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> so-confusing
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> alias 'so-confusing' expands to 'confuse --style compact'
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> alias 'confuse' expands to 'log --limit 3'
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> so-confusing exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> blackbox
 
 custom date format
   $ rm ./.hg/blackbox.log
@@ -97,7 +97,7 @@ 
   $ hg blackbox
   2012-04-13 @ 20:13:13 bob @0000000000000000000000000000000000000000 (5000)> --config *blackbox.date-format=%Y-%m-%d @ %H:%M:%S* --config *devel.default-date=1334347993 0* --traceback status (glob)
   2012-04-13 @ 20:13:13 bob @0000000000000000000000000000000000000000 (5000)> --config *blackbox.date-format=%Y-%m-%d @ %H:%M:%S* --config *devel.default-date=1334347993 0* --traceback status exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> blackbox
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> blackbox
 
 incoming change tracking
 
@@ -128,12 +128,12 @@ 
   new changesets d02f48003e62
   (run 'hg update' to get a working copy)
   $ hg blackbox -l 6
-  1970/01/01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> wrote branch cache (served) with 1 labels and 2 nodes
-  1970/01/01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> updated branch cache (served.hidden) in * seconds (glob)
-  1970/01/01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> wrote branch cache (served.hidden) with 1 labels and 2 nodes
-  1970/01/01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> 1 incoming changes - new heads: d02f48003e62
-  1970/01/01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> pull exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> blackbox -l 6
+  1970-01-01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> wrote branch cache (served) with 1 labels and 2 nodes
+  1970-01-01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> updated branch cache (served.hidden) in * seconds (glob)
+  1970-01-01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> wrote branch cache (served.hidden) with 1 labels and 2 nodes
+  1970-01-01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> 1 incoming changes - new heads: d02f48003e62
+  1970-01-01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> pull exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> blackbox -l 6
 
 we must not cause a failure if we cannot write to the log
 
@@ -191,12 +191,12 @@ 
   0 files updated, 0 files merged, 1 files removed, 0 files unresolved
   saved backup bundle to $TESTTMP/blackboxtest2/.hg/strip-backup/*-backup.hg (glob)
   $ hg blackbox -l 6
-  1970/01/01 00:00:00.000 bob @73f6ee326b27d820b0472f1a825e3a50f3dc489b (5000)> strip tip
-  1970/01/01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> saved backup bundle to $TESTTMP/blackboxtest2/.hg/strip-backup/73f6ee326b27-7612e004-backup.hg
-  1970/01/01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> updated branch cache (immutable) in * seconds (glob)
-  1970/01/01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> wrote branch cache (immutable) with 1 labels and 2 nodes
-  1970/01/01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> strip tip exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> blackbox -l 6
+  1970-01-01 00:00:00.000 bob @73f6ee326b27d820b0472f1a825e3a50f3dc489b (5000)> strip tip
+  1970-01-01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> saved backup bundle to $TESTTMP/blackboxtest2/.hg/strip-backup/73f6ee326b27-7612e004-backup.hg
+  1970-01-01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> updated branch cache (immutable) in * seconds (glob)
+  1970-01-01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> wrote branch cache (immutable) with 1 labels and 2 nodes
+  1970-01-01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> strip tip exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> blackbox -l 6
 
 extension and python hooks - use the eol extension for a pythonhook
 
@@ -217,12 +217,12 @@ 
   > eol=!
   > EOF
   $ hg blackbox -l 5
-  1970/01/01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> update (no-chg !)
-  1970/01/01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> pythonhook-preupdate: hgext.eol.preupdate finished in * seconds (glob)
-  1970/01/01 00:00:00.000 bob @d02f48003e62c24e2659d97d30f2a83abe5d5d51 (5000)> exthook-update: echo hooked finished in * seconds (glob)
-  1970/01/01 00:00:00.000 bob @d02f48003e62c24e2659d97d30f2a83abe5d5d51 (5000)> update exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @d02f48003e62c24e2659d97d30f2a83abe5d5d51 (5000)> serve --no-profile --cmdserver chgunix --address $TESTTMP.chgsock/server.* --daemon-postexec 'chdir:/' (glob) (chg !)
-  1970/01/01 00:00:00.000 bob @d02f48003e62c24e2659d97d30f2a83abe5d5d51 (5000)> blackbox -l 5
+  1970-01-01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> update (no-chg !)
+  1970-01-01 00:00:00.000 bob @6563da9dcf87b1949716e38ff3e3dfaa3198eb06 (5000)> pythonhook-preupdate: hgext.eol.preupdate finished in * seconds (glob)
+  1970-01-01 00:00:00.000 bob @d02f48003e62c24e2659d97d30f2a83abe5d5d51 (5000)> exthook-update: echo hooked finished in * seconds (glob)
+  1970-01-01 00:00:00.000 bob @d02f48003e62c24e2659d97d30f2a83abe5d5d51 (5000)> update exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @d02f48003e62c24e2659d97d30f2a83abe5d5d51 (5000)> serve --no-profile --cmdserver chgunix --address $TESTTMP.chgsock/server.* --daemon-postexec 'chdir:/' (glob) (chg !)
+  1970-01-01 00:00:00.000 bob @d02f48003e62c24e2659d97d30f2a83abe5d5d51 (5000)> blackbox -l 5
 
 log rotation
 
@@ -243,8 +243,8 @@ 
   $ hg init blackboxtest3
   $ cd blackboxtest3
   $ hg blackbox
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> init blackboxtest3 exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> blackbox
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> init blackboxtest3 exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> blackbox
   $ mv .hg/blackbox.log .hg/blackbox.log-
   $ mkdir .hg/blackbox.log
   $ sed -e 's/\(.*test1.*\)/#\1/; s#\(.*commit2.*\)#os.rmdir(".hg/blackbox.log")\
@@ -306,16 +306,16 @@ 
   
   result: 0
   $ hg blackbox
-  1970/01/01 00:00:00.000 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> updating the branch cache
-  1970/01/01 00:00:00.000 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> updated branch cache (served) in * seconds (glob)
-  1970/01/01 00:00:00.000 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> wrote branch cache (served) with 1 labels and 1 nodes
-  1970/01/01 00:00:00.000 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> --debug commit -m commit2 -d 2000-01-02 foo exited 0 after *.?? seconds (glob)
-  1970/01/01 00:00:00.000 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> --debug log -r 0
-  1970/01/01 00:00:00.000 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> writing .hg/cache/tags2-visible with 0 tags
-  1970/01/01 00:00:00.000 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> --debug log -r 0 exited 0 after *.?? seconds (glob)
-  1970/01/01 00:00:00.000 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> --debug log -r tip
-  1970/01/01 00:00:00.000 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> --debug log -r tip exited 0 after *.?? seconds (glob)
-  1970/01/01 00:00:00.000 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> blackbox
+  1970-01-01 00:00:00.000 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> updating the branch cache
+  1970-01-01 00:00:00.000 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> updated branch cache (served) in * seconds (glob)
+  1970-01-01 00:00:00.000 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> wrote branch cache (served) with 1 labels and 1 nodes
+  1970-01-01 00:00:00.000 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> --debug commit -m commit2 -d 2000-01-02 foo exited 0 after *.?? seconds (glob)
+  1970-01-01 00:00:00.000 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> --debug log -r 0
+  1970-01-01 00:00:00.000 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> writing .hg/cache/tags2-visible with 0 tags
+  1970-01-01 00:00:00.000 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> --debug log -r 0 exited 0 after *.?? seconds (glob)
+  1970-01-01 00:00:00.000 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> --debug log -r tip
+  1970-01-01 00:00:00.000 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> --debug log -r tip exited 0 after *.?? seconds (glob)
+  1970-01-01 00:00:00.000 bob @45589e459b2edfbf3dbde7e01f611d2c1e7453d7 (5000)> blackbox
 
 Skip rotation if the .hg is read-only
 
@@ -394,8 +394,8 @@ 
 (only look for entries with specific logged sources, otherwise this test is
 pretty brittle)
   $ hg blackbox | egrep '\[command(finish)?\]'
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000) [commandfinish]> --config *blackbox.track=* --config *blackbox.logsource=True* init track_star exited 0 after * seconds (glob)
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000) [command]> blackbox
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000) [commandfinish]> --config *blackbox.track=* --config *blackbox.logsource=True* init track_star exited 0 after * seconds (glob)
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000) [command]> blackbox
   $ cd $TESTTMP
 
 #if chg
@@ -493,7 +493,7 @@ 
 #endif
 
   $ head -1 .hg/blackbox.log
-  1970/01/01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> ** Unknown exception encountered with possibly-broken third-party extension "mock" (version N/A)
+  1970-01-01 00:00:00.000 bob @0000000000000000000000000000000000000000 (5000)> ** Unknown exception encountered with possibly-broken third-party extension "mock" (version N/A)
   $ tail -2 .hg/blackbox.log
   RuntimeError: raise
   
diff --git a/rust/rhg/src/blackbox.rs b/rust/rhg/src/blackbox.rs
--- a/rust/rhg/src/blackbox.rs
+++ b/rust/rhg/src/blackbox.rs
@@ -13,7 +13,7 @@ 
 const DEFAULT_MAX_FILES: u32 = 7;
 
 // Python does not support %.3f, only %f
-const DEFAULT_DATE_FORMAT: &str = "%Y/%m/%d %H:%M:%S%.3f";
+const DEFAULT_DATE_FORMAT: &str = "%Y-%m-%d %H:%M:%S%.3f";
 
 type DateTime = chrono::DateTime<chrono::Local>;
 
diff --git a/hgext/blackbox.py b/hgext/blackbox.py
--- a/hgext/blackbox.py
+++ b/hgext/blackbox.py
@@ -141,7 +141,7 @@ 
             # We want to display milliseconds (more precision seems
             # unnecessary).  Since %.3f is not supported, use %f and truncate
             # microseconds.
-            date = dateutil.datestr(default, b'%Y/%m/%d %H:%M:%S.%f')[:-3]
+            date = dateutil.datestr(default, b'%Y-%m-%d %H:%M:%S.%f')[:-3]
         user = procutil.getuser()
         pid = b'%d' % procutil.getpid()
         changed = b''
@@ -229,7 +229,7 @@ 
 
         # count the commands by matching lines like: 2013/01/23 19:13:36 root>
         if re.match(
-            br'^\d{4}/\d{2}/\d{2} \d{2}:\d{2}:\d{2}(.\d*)? .*> .*', line
+            br'^\d{4}[-/]\d{2}[-/]\d{2} \d{2}:\d{2}:\d{2}(.\d*)? .*> .*', line
         ):
             count += 1
         output.append(line)