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744ea3c4f41ba7020f9c8e0361cb8f20047e5f30
Simon Sapin
bisect: add `-G` to an `hg log` command in a test

This helps readers see what shape of DAG to expect

Differential Revision: https://phab.mercurial-scm.org/D9373
cc759d3db1e8...
cc759d3db1e8df69dcf24f310a5a61526e3dd312
Pierre-Yves David
copies-rust: leverage the immutability for efficient update

The immutable OrdMap has a diff function. That function yield items for each
difference (missing in minor; missing in major; present in both, but
different). We reorganise the manifest merging code to use this new function.
We gather the data we would need to inject into the `minor` or `major` dict and
eventually update one of them. The semantic of the merge itself is kept as is.

Why are we doing this? Last year we contributed a patch making that diff
function quickly detect some of the identical subsection when comparing two
OrdMap cloned from a common ancestors (because they point to the very same node
in memory).

As a result:

- That diff function is very fast in most of our cases,
- It is important to maximize the "common" part by  minimising the amount of
  unnecessary changes we do in theses Map. This is why we gather update for both
  and update the one with the smaller update.

In practice, this yield a massive speed up on all our slow cases. Some examples
below.:


Repo            Cases                                Source-Rev  Dest-Rev        Old-Time      New-Time    Difference  Factor
------------------------------------------------------------------------------------------------------------------------------------
pypy            x0000_revs_x_added_0_copies          d1defd0dc478 c9cb1334cc78 :  33.527067 s,  2.780174 s, -30.746893 s, × 0.0829
netbeans        x0000_revs_xx000_added_x000_copies    588c2d1ced70 1aad62e59ddd : killed(>120),  1.231869 s
mozilla-central x00000_revs_x0000_added_x0000_copies  6832ae71433c 4c222a1d9a00 : killed(>120),  3.478747 s
mozilla-try    x0000_revs_xx000_added_x000_copies    89294cd501d9 7ccb2fc7ccb5 :  83.508590 s,  9.843481 s, -73.665109 s, × 0.1179
mozilla-try    x0000_revs_x0000_added_x0000_copies  e928c65095ed e951f4ad123a :  55.079813 s,  1.465128 s, -53.614685 s, × 0.0266

The performance compared to the Python code are now comparable (worst case are a
score percent slower)" You an check the full table below for details.

The big new is that, with this change, we are now faster filelog in most case, .
Below is an highlight of some pretty nice win:

Repo            Case                                  Source-Rev  Dest-Rev        filelog    sidedata      Difference      Factor
---------------------------------------------------------------------------------------------------------------------------------------
pypy            x0000_revs_xx000_added_x000_copies    08ea3258278e d9fa043f30c0 :  1.354211 s, 0.252125 s, -1.102086 s, × 0.186179
netbeans        x000_revs_x000_added_x000_copies      ff453e9fee32 411350406ec2 :  0.939593 s, 0.112534 s, -0.827059 s, × 0.119769
netbeans        x0000_revs_xx000_added_x000_copies    588c2d1ced70 1aad62e59ddd :  3.824967 s, 1.231869 s, -2.593098 s, × 0.322060
mozilla-central x000_revs_x000_added_x000_copies      7c97034feb78 4407bd0c6330 :  1.142414 s, 0.102184 s, -1.040230 s, × 0.089446
mozilla-central x0000_revs_xx000_added_0_copies      9eec5917337d 67118cc6dcad :  6.667504 s, 0.046220 s, -6.621284 s, × 0.006932
mozilla-central x0000_revs_xx000_added_x000_copies    f78c615a656c 96a38b690156 :  3.267274 s, 0.315271 s, -2.952003 s, × 0.096494
mozilla-central x00000_revs_x0000_added_x0000_copies  6832ae71433c 4c222a1d9a00 : 16.038104 s, 3.478747 s, -12.559357 s, × 0.216905
mozilla-central x00000_revs_x00000_added_x000_copies  76caed42cf7c 1daa622bbe42 : 20.639928 s, 4.766435 s, -15.873493 s, × 0.230933

They they are a handful of slower case where we perform less well. A good Share
of them are really pathological "service" merge in mozilla-try, but not all of
them.

Repo            Case                                  Source-Rev  Dest-Rev        filelog    sidedata      Difference      Factor
---------------------------------------------------------------------------------------------------------------------------------------
pypy            x0000_revs_x_added_0_copies          d1defd0dc478 c9cb1334cc78 :  0.001055 s, 2.780174 s, +2.779119 s, × 2635.236019
mozilla-try    x0000_revs_x_added_0_copies          63519bfd42ee a36a2a865d92 : 0.088715 s, 0.435381 s, +0.346666 s, × 4.907637
mozilla-try    x0000_revs_x_added_x_copies          9fe69ff0762d bcabf2a78927 : 0.080765 s, 0.415461 s, +0.334696 s, × 5.144072
mozilla-try    x0000_revs_xx000_added_x000_copies    89294cd501d9 7ccb2fc7ccb5 : 7.598509 s, 9.843481 s, +2.244972 s, × 1.295449
mozilla-try    x00000_revs_x_added_0_copies          6a320851d377 1ebb79acd503 : 0.092232 s, killed
mozilla-try    x00000_revs_x_added_x_copies          5173c4b6f97c 95d83ee7242d : 0.093892 s, killed
mozilla-try    x00000_revs_x000_added_x_copies      9126823d0e9c ca82787bb23c : 0.227503 s, killed
mozilla-try    x00000_revs_x00000_added_x0000_copies 1b661134e2ca 1ae03d022d6d : 21.145391 s, killed
mozilla-try    x00000_revs_x00000_added_x000_copies  9b2a99adc05e 8e29777b48e6 : 25.304164 s, killed


Below are two different tables for full performance comparison
- this changeset against the previous one (spoiler: it is much better)
- this changeset against the python code  (spoiler: still slower, but it gets more comparable)
- this changeset against the filelog code (spoiler: better in many case, but not all)

Repo            Cases                                Source-Rev  Dest-Rev        Old-Time      New-Time    Difference  Factor
------------------------------------------------------------------------------------------------------------------------------------
mercurial      x_revs_x_added_0_copies              ad6b123de1c7 39cfcef4f463 :  0.000049 s,  0.000049 s,  +0.000000 s, × 1.0000
mercurial      x_revs_x_added_x_copies              2b1c78674230 0c1d10351869 :  0.000179 s,  0.000182 s,  +0.000003 s, × 1.0168
mercurial      x000_revs_x000_added_x_copies        81f8ff2a9bf2 dd3267698d84 :  0.006494 s,  0.005872 s,  -0.000622 s, × 0.9042
pypy            x_revs_x_added_0_copies              aed021ee8ae8 099ed31b181b :  0.000339 s,  0.000229 s,  -0.000110 s, × 0.6755
pypy            x_revs_x000_added_0_copies            4aa4e1f8e19a 359343b9ac0e :  0.000057 s,  0.000058 s,  +0.000001 s, × 1.0175
pypy            x_revs_x_added_x_copies              ac52eb7bbbb0 72e022663155 :  0.000299 s,  0.000148 s,  -0.000151 s, × 0.4950
pypy            x_revs_x00_added_x_copies            c3b14617fbd7 ace7255d9a26 :  0.001200 s,  0.001205 s,  +0.000005 s, × 1.0042
pypy            x_revs_x000_added_x000_copies        df6f7a526b60 a83dc6a2d56f :  0.025120 s,  0.025662 s,  +0.000542 s, × 1.0216
pypy            x000_revs_xx00_added_0_copies        89a76aede314 2f22446ff07e :  0.506921 s,  0.080113 s,  -0.426808 s, × 0.1580
pypy            x000_revs_x000_added_x_copies        8a3b5bfd266e 2c68e87c3efe :  1.272060 s,  0.153030 s,  -1.119030 s, × 0.1203
pypy            x000_revs_x000_added_x000_copies      89a76aede314 7b3dda341c84 :  0.690941 s,  0.098774 s,  -0.592167 s, × 0.1430
pypy            x0000_revs_x_added_0_copies          d1defd0dc478 c9cb1334cc78 :  33.527067 s,  2.780174 s, -30.746893 s, × 0.0829
pypy            x0000_revs_xx000_added_0_copies      bf2c629d0071 4ffed77c095c :  0.021970 s,  0.022218 s,  +0.000248 s, × 1.0113
pypy            x0000_revs_xx000_added_x000_copies    08ea3258278e d9fa043f30c0 :  1.772094 s,  0.252125 s,  -1.519969 s, × 0.1423
netbeans        x_revs_x_added_0_copies              fb0955ffcbcd a01e9239f9e7 :  0.000185 s,  0.000186 s,  +0.000001 s, × 1.0054
netbeans        x_revs_x000_added_0_copies            6f360122949f 20eb231cc7d0 :  0.000135 s,  0.000133 s,  -0.000002 s, × 0.9852
netbeans        x_revs_x_added_x_copies              1ada3faf6fb6 5a39d12eecf4 :  0.000329 s,  0.000320 s,  -0.000009 s, × 0.9726
netbeans        x_revs_x00_added_x_copies            35be93ba1e2c 9eec5e90c05f :  0.001343 s,  0.001336 s,  -0.000007 s, × 0.9948
netbeans        x000_revs_xx00_added_0_copies        eac3045b4fdd 51d4ae7f1290 :  0.029396 s,  0.015573 s,  -0.013823 s, × 0.5298
netbeans        x000_revs_x000_added_x_copies        e2063d266acd 6081d72689dc :  0.040210 s,  0.018667 s,  -0.021543 s, × 0.4642
netbeans        x000_revs_x000_added_x000_copies      ff453e9fee32 411350406ec2 :  4.556794 s,  0.112534 s,  -4.444260 s, × 0.0247
netbeans        x0000_revs_xx000_added_x000_copies    588c2d1ced70 1aad62e59ddd : killed      ,  1.231869 s
mozilla-central x_revs_x_added_0_copies              3697f962bb7b 7015fcdd43a2 :  0.000199 s,  0.000197 s,  -0.000002 s, × 0.9899
mozilla-central x_revs_x000_added_0_copies            dd390860c6c9 40d0c5bed75d :  0.000639 s,  0.000637 s,  -0.000002 s, × 0.9969
mozilla-central x_revs_x_added_x_copies              8d198483ae3b 14207ffc2b2f :  0.000542 s,  0.000303 s,  -0.000239 s, × 0.5590
mozilla-central x_revs_x00_added_x_copies            98cbc58cc6bc 446a150332c3 :  0.001685 s,  0.001663 s,  -0.000022 s, × 0.9869
mozilla-central x_revs_x000_added_x000_copies        3c684b4b8f68 0a5e72d1b479 :  0.006954 s,  0.007008 s,  +0.000054 s, × 1.0078
mozilla-central x_revs_x0000_added_x0000_copies      effb563bb7e5 c07a39dc4e80 :  0.132938 s,  0.127385 s,  -0.005553 s, × 0.9582
mozilla-central x000_revs_xx00_added_0_copies        6100d773079a 04a55431795e :  0.008683 s,  0.008740 s,  +0.000057 s, × 1.0066
mozilla-central x000_revs_x000_added_x_copies        9f17a6fc04f9 2d37b966abed :  0.005956 s,  0.005783 s,  -0.000173 s, × 0.9710
mozilla-central x000_revs_x000_added_x000_copies      7c97034feb78 4407bd0c6330 :  0.963905 s,  0.102184 s,  -0.861721 s, × 0.1060
mozilla-central x0000_revs_xx000_added_0_copies      9eec5917337d 67118cc6dcad :  0.049239 s,  0.046220 s,  -0.003019 s, × 0.9387
mozilla-central x0000_revs_xx000_added_x000_copies    f78c615a656c 96a38b690156 :  4.217003 s,  0.315271 s,  -3.901732 s, × 0.0748
mozilla-central x00000_revs_x0000_added_x0000_copies  6832ae71433c 4c222a1d9a00 : killed      ,  3.478747 s
mozilla-central x00000_revs_x00000_added_x000_copies  76caed42cf7c 1daa622bbe42 : killed      ,  4.766435 s
mozilla-try    x_revs_x_added_0_copies              aaf6dde0deb8 9790f499805a :  0.001197 s,  0.001214 s,  +0.000017 s, × 1.0142
mozilla-try    x_revs_x000_added_0_copies            d8d0222927b4 5bb8ce8c7450 :  0.001213 s,  0.001221 s,  +0.000008 s, × 1.0066
mozilla-try    x_revs_x_added_x_copies              092fcca11bdb 936255a0384a :  0.000762 s,  0.000613 s,  -0.000149 s, × 0.8045
mozilla-try    x_revs_x00_added_x_copies            b53d2fadbdb5 017afae788ec :  0.001909 s,  0.001904 s,  -0.000005 s, × 0.9974
mozilla-try    x_revs_x000_added_x000_copies        20408ad61ce5 6f0ee96e21ad :  0.093021 s,  0.093000 s,  -0.000021 s, × 0.9998
mozilla-try    x_revs_x0000_added_x0000_copies      effb563bb7e5 c07a39dc4e80 :  0.134536 s,  0.132194 s,  -0.002342 s, × 0.9826
mozilla-try    x000_revs_xx00_added_0_copies        6100d773079a 04a55431795e :  0.009071 s,  0.009069 s,  -0.000002 s, × 0.9998
mozilla-try    x000_revs_x000_added_x_copies        9f17a6fc04f9 2d37b966abed :  0.006206 s,  0.006169 s,  -0.000037 s, × 0.9940
mozilla-try    x000_revs_x000_added_x000_copies      1346fd0130e4 4c65cbdabc1f :  1.150502 s,  0.115540 s,  -1.034962 s, × 0.1004
mozilla-try    x0000_revs_x_added_0_copies          63519bfd42ee a36a2a865d92 :  1.114864 s,  0.435381 s,  -0.679483 s, × 0.3905
mozilla-try    x0000_revs_x_added_x_copies          9fe69ff0762d bcabf2a78927 :  1.042658 s,  0.415461 s,  -0.627197 s, × 0.3985
mozilla-try    x0000_revs_xx000_added_x_copies      156f6e2674f2 4d0f2c178e66 :  0.447402 s,  0.155946 s,  -0.291456 s, × 0.3486
mozilla-try    x0000_revs_xx000_added_0_copies      9eec5917337d 67118cc6dcad :  0.051132 s,  0.048521 s,  -0.002611 s, × 0.9489
mozilla-try    x0000_revs_xx000_added_x000_copies    89294cd501d9 7ccb2fc7ccb5 :  83.508590 s,  9.843481 s, -73.665109 s, × 0.1179
mozilla-try    x0000_revs_x0000_added_x0000_copies  e928c65095ed e951f4ad123a :  55.079813 s,  1.465128 s, -53.614685 s, × 0.0266
mozilla-try    x00000_revs_x00000_added_0_copies    dc8a3ca7010e d16fde900c9c :  1.442793 s,  1.374283 s,  -0.068510 s, × 0.9525
mozilla-try    x00000_revs_x0000_added_x0000_copies  8d3fafa80d4b eb884023b810 : killed      ,  5.255158 s

Repo            Cases                                Source-Rev  Dest-Rev        Py-time      Rust-time    Difference  Factor
------------------------------------------------------------------------------------------------------------------------------------
mercurial      x_revs_x_added_0_copies              ad6b123de1c7 39cfcef4f463 :  0.000044 s,  0.000049 s,  +0.000005 s, × 1.1136
mercurial      x_revs_x_added_x_copies              2b1c78674230 0c1d10351869 :  0.000138 s,  0.000182 s,  +0.000044 s, × 1.3188
mercurial      x000_revs_x000_added_x_copies        81f8ff2a9bf2 dd3267698d84 :  0.005052 s,  0.005872 s,  +0.000820 s, × 1.1623
pypy            x_revs_x_added_0_copies              aed021ee8ae8 099ed31b181b :  0.000219 s,  0.000229 s,  +0.000010 s, × 1.0457
pypy            x_revs_x000_added_0_copies            4aa4e1f8e19a 359343b9ac0e :  0.000055 s,  0.000058 s,  +0.000003 s, × 1.0545
pypy            x_revs_x_added_x_copies              ac52eb7bbbb0 72e022663155 :  0.000128 s,  0.000148 s,  +0.000020 s, × 1.1562
pypy            x_revs_x00_added_x_copies            c3b14617fbd7 ace7255d9a26 :  0.001089 s,  0.001205 s,  +0.000116 s, × 1.1065
pypy            x_revs_x000_added_x000_copies        df6f7a526b60 a83dc6a2d56f :  0.017407 s,  0.025662 s,  +0.008255 s, × 1.4742
pypy            x000_revs_xx00_added_0_copies        89a76aede314 2f22446ff07e :  0.094175 s,  0.080113 s,  -0.014062 s, × 0.8507
pypy            x000_revs_x000_added_x_copies        8a3b5bfd266e 2c68e87c3efe :  0.238009 s,  0.153030 s,  -0.084979 s, × 0.6430
pypy            x000_revs_x000_added_x000_copies      89a76aede314 7b3dda341c84 :  0.125876 s,  0.098774 s,  -0.027102 s, × 0.7847
pypy            x0000_revs_x_added_0_copies          d1defd0dc478 c9cb1334cc78 :  3.581556 s,  2.780174 s,  -0.801382 s, × 0.7762
pypy            x0000_revs_xx000_added_0_copies      bf2c629d0071 4ffed77c095c :  0.016721 s,  0.022218 s,  +0.005497 s, × 1.3287
pypy            x0000_revs_xx000_added_x000_copies    08ea3258278e d9fa043f30c0 :  0.242367 s,  0.252125 s,  +0.009758 s, × 1.0403
netbeans        x_revs_x_added_0_copies              fb0955ffcbcd a01e9239f9e7 :  0.000165 s,  0.000186 s,  +0.000021 s, × 1.1273
netbeans        x_revs_x000_added_0_copies            6f360122949f 20eb231cc7d0 :  0.000114 s,  0.000133 s,  +0.000019 s, × 1.1667
netbeans        x_revs_x_added_x_copies              1ada3faf6fb6 5a39d12eecf4 :  0.000296 s,  0.000320 s,  +0.000024 s, × 1.0811
netbeans        x_revs_x00_added_x_copies            35be93ba1e2c 9eec5e90c05f :  0.001124 s,  0.001336 s,  +0.000212 s, × 1.1886
netbeans        x000_revs_xx00_added_0_copies        eac3045b4fdd 51d4ae7f1290 :  0.013060 s,  0.015573 s,  +0.002513 s, × 1.1924
netbeans        x000_revs_x000_added_x_copies        e2063d266acd 6081d72689dc :  0.017112 s,  0.018667 s,  +0.001555 s, × 1.0909
netbeans        x000_revs_x000_added_x000_copies      ff453e9fee32 411350406ec2 :  0.660350 s,  0.112534 s,  -0.547816 s, × 0.1704
netbeans        x0000_revs_xx000_added_x000_copies    588c2d1ced70 1aad62e59ddd :  10.032499 s,  1.231869 s,  -8.800630 s, × 0.1228
mozilla-central x_revs_x_added_0_copies              3697f962bb7b 7015fcdd43a2 :  0.000189 s,  0.000197 s,  +0.000008 s, × 1.0423
mozilla-central x_revs_x000_added_0_copies            dd390860c6c9 40d0c5bed75d :  0.000462 s,  0.000637 s,  +0.000175 s, × 1.3788
mozilla-central x_revs_x_added_x_copies              8d198483ae3b 14207ffc2b2f :  0.000270 s,  0.000303 s,  +0.000033 s, × 1.1222
mozilla-central x_revs_x00_added_x_copies            98cbc58cc6bc 446a150332c3 :  0.001474 s,  0.001663 s,  +0.000189 s, × 1.1282
mozilla-central x_revs_x000_added_x000_copies        3c684b4b8f68 0a5e72d1b479 :  0.004806 s,  0.007008 s,  +0.002202 s, × 1.4582
mozilla-central x_revs_x0000_added_x0000_copies      effb563bb7e5 c07a39dc4e80 :  0.085150 s,  0.127385 s,  +0.042235 s, × 1.4960
mozilla-central x000_revs_xx00_added_0_copies        6100d773079a 04a55431795e :  0.007064 s,  0.008740 s,  +0.001676 s, × 1.2373
mozilla-central x000_revs_x000_added_x_copies        9f17a6fc04f9 2d37b966abed :  0.004741 s,  0.005783 s,  +0.001042 s, × 1.2198
mozilla-central x000_revs_x000_added_x000_copies      7c97034feb78 4407bd0c6330 :  0.190133 s,  0.102184 s,  -0.087949 s, × 0.5374
mozilla-central x0000_revs_xx000_added_0_copies      9eec5917337d 67118cc6dcad :  0.035651 s,  0.046220 s,  +0.010569 s, × 1.2965
mozilla-central x0000_revs_xx000_added_x000_copies    f78c615a656c 96a38b690156 :  0.440694 s,  0.315271 s,  -0.125423 s, × 0.7154
mozilla-central x00000_revs_x0000_added_x0000_copies  6832ae71433c 4c222a1d9a00 :  18.454163 s,  3.478747 s, -14.975416 s, × 0.1885
mozilla-central x00000_revs_x00000_added_x000_copies  76caed42cf7c 1daa622bbe42 :  31.562719 s,  4.766435 s, -26.796284 s, × 0.1510
mozilla-try    x_revs_x_added_0_copies              aaf6dde0deb8 9790f499805a :  0.001189 s,  0.001214 s,  +0.000025 s, × 1.0210
mozilla-try    x_revs_x000_added_0_copies            d8d0222927b4 5bb8ce8c7450 :  0.001204 s,  0.001221 s,  +0.000017 s, × 1.0141
mozilla-try    x_revs_x_added_x_copies              092fcca11bdb 936255a0384a :  0.000586 s,  0.000613 s,  +0.000027 s, × 1.0461
mozilla-try    x_revs_x00_added_x_copies            b53d2fadbdb5 017afae788ec :  0.001845 s,  0.001904 s,  +0.000059 s, × 1.0320
mozilla-try    x_revs_x000_added_x000_copies        20408ad61ce5 6f0ee96e21ad :  0.063822 s,  0.093000 s,  +0.029178 s, × 1.4572
mozilla-try    x_revs_x0000_added_x0000_copies      effb563bb7e5 c07a39dc4e80 :  0.088038 s,  0.132194 s,  +0.044156 s, × 1.5016
mozilla-try    x000_revs_xx00_added_0_copies        6100d773079a 04a55431795e :  0.007389 s,  0.009069 s,  +0.001680 s, × 1.2274
mozilla-try    x000_revs_x000_added_x_copies        9f17a6fc04f9 2d37b966abed :  0.004868 s,  0.006169 s,  +0.001301 s, × 1.2673
mozilla-try    x000_revs_x000_added_x000_copies      1346fd0130e4 4c65cbdabc1f :  0.222450 s,  0.115540 s,  -0.106910 s, × 0.5194
mozilla-try    x0000_revs_x_added_0_copies          63519bfd42ee a36a2a865d92 :  0.370675 s,  0.435381 s,  +0.064706 s, × 1.1746
mozilla-try    x0000_revs_x_added_x_copies          9fe69ff0762d bcabf2a78927 :  0.358020 s,  0.415461 s,  +0.057441 s, × 1.1604
mozilla-try    x0000_revs_xx000_added_x_copies      156f6e2674f2 4d0f2c178e66 :  0.145235 s,  0.155946 s,  +0.010711 s, × 1.0737
mozilla-try    x0000_revs_xx000_added_0_copies      9eec5917337d 67118cc6dcad :  0.037606 s,  0.048521 s,  +0.010915 s, × 1.2902
mozilla-try    x0000_revs_xx000_added_x000_copies    89294cd501d9 7ccb2fc7ccb5 :  7.382439 s,  9.843481 s,  +2.461042 s, × 1.3334
mozilla-try    x0000_revs_x0000_added_x0000_copies  e928c65095ed e951f4ad123a :  7.273506 s,  1.465128 s,  -5.808378 s, × 0.2014
mozilla-try    x00000_revs_x00000_added_0_copies    dc8a3ca7010e d16fde900c9c :  1.074593 s,  1.374283 s,  +0.299690 s, × 1.2789
mozilla-try    x00000_revs_x0000_added_x0000_copies  8d3fafa80d4b eb884023b810 :  27.746195 s,  5.255158 s, -22.491037 s, × 0.1894

Repo            Case                                  Source-Rev  Dest-Rev        filelog    sidedata      Difference      Factor
---------------------------------------------------------------------------------------------------------------------------------------
mercurial      x_revs_x_added_0_copies              ad6b123de1c7 39cfcef4f463 :  0.000906 s, 0.000049 s, -0.000857 s, × 0.054084
mercurial      x_revs_x_added_x_copies              2b1c78674230 0c1d10351869 :  0.001832 s, 0.000182 s, -0.001650 s, × 0.099345
mercurial      x000_revs_x000_added_x_copies        81f8ff2a9bf2 dd3267698d84 :  0.018101 s, 0.005872 s, -0.012229 s, × 0.324402
pypy            x_revs_x_added_0_copies              aed021ee8ae8 099ed31b181b :  0.001508 s, 0.000229 s, -0.001279 s, × 0.151857
pypy            x_revs_x000_added_0_copies            4aa4e1f8e19a 359343b9ac0e :  0.207438 s, 0.000058 s, -0.207380 s, × 0.000280
pypy            x_revs_x_added_x_copies              ac52eb7bbbb0 72e022663155 :  0.016956 s, 0.000148 s, -0.016808 s, × 0.008728
pypy            x_revs_x00_added_x_copies            c3b14617fbd7 ace7255d9a26 :  0.019129 s, 0.001205 s, -0.017924 s, × 0.062993
pypy            x_revs_x000_added_x000_copies        df6f7a526b60 a83dc6a2d56f :  0.772050 s, 0.025662 s, -0.746388 s, × 0.033239
pypy            x000_revs_xx00_added_0_copies        89a76aede314 2f22446ff07e :  1.181775 s, 0.080113 s, -1.101662 s, × 0.067790
pypy            x000_revs_x000_added_x_copies        8a3b5bfd266e 2c68e87c3efe :  1.255717 s, 0.153030 s, -1.102687 s, × 0.121867
pypy            x000_revs_x000_added_x000_copies      89a76aede314 7b3dda341c84 :  1.628132 s, 0.098774 s, -1.529358 s, × 0.060667
pypy            x0000_revs_x_added_0_copies          d1defd0dc478 c9cb1334cc78 :  0.001055 s, 2.780174 s, +2.779119 s, × 2635.236019
pypy            x0000_revs_xx000_added_0_copies      bf2c629d0071 4ffed77c095c :  1.056756 s, 0.022218 s, -1.034538 s, × 0.021025
pypy            x0000_revs_xx000_added_x000_copies    08ea3258278e d9fa043f30c0 :  1.354211 s, 0.252125 s, -1.102086 s, × 0.186179
netbeans        x_revs_x_added_0_copies              fb0955ffcbcd a01e9239f9e7 :  0.027759 s, 0.000186 s, -0.027573 s, × 0.006701
netbeans        x_revs_x000_added_0_copies            6f360122949f 20eb231cc7d0 :  0.133382 s, 0.000133 s, -0.133249 s, × 0.000997
netbeans        x_revs_x_added_x_copies              1ada3faf6fb6 5a39d12eecf4 :  0.025353 s, 0.000320 s, -0.025033 s, × 0.012622
netbeans        x_revs_x00_added_x_copies            35be93ba1e2c 9eec5e90c05f :  0.052939 s, 0.001336 s, -0.051603 s, × 0.025237
netbeans        x000_revs_xx00_added_0_copies        eac3045b4fdd 51d4ae7f1290 :  0.037532 s, 0.015573 s, -0.021959 s, × 0.414926
netbeans        x000_revs_x000_added_x_copies        e2063d266acd 6081d72689dc :  0.195401 s, 0.018667 s, -0.176734 s, × 0.095532
netbeans        x000_revs_x000_added_x000_copies      ff453e9fee32 411350406ec2 :  0.939593 s, 0.112534 s, -0.827059 s, × 0.119769
netbeans        x0000_revs_xx000_added_x000_copies    588c2d1ced70 1aad62e59ddd :  3.824967 s, 1.231869 s, -2.593098 s, × 0.322060
mozilla-central x_revs_x_added_0_copies              3697f962bb7b 7015fcdd43a2 :  0.024626 s, 0.000197 s, -0.024429 s, × 0.008000
mozilla-central x_revs_x000_added_0_copies            dd390860c6c9 40d0c5bed75d :  0.141098 s, 0.000637 s, -0.140461 s, × 0.004515
mozilla-central x_revs_x_added_x_copies              8d198483ae3b 14207ffc2b2f :  0.025973 s, 0.000303 s, -0.025670 s, × 0.011666
mozilla-central x_revs_x00_added_x_copies            98cbc58cc6bc 446a150332c3 :  0.085098 s, 0.001663 s, -0.083435 s, × 0.019542
mozilla-central x_revs_x000_added_x000_copies        3c684b4b8f68 0a5e72d1b479 :  0.196623 s, 0.007008 s, -0.189615 s, × 0.035642
mozilla-central x_revs_x0000_added_x0000_copies      effb563bb7e5 c07a39dc4e80 :  2.182911 s, 0.127385 s, -2.055526 s, × 0.058356
mozilla-central x000_revs_xx00_added_0_copies        6100d773079a 04a55431795e :  0.088865 s, 0.008740 s, -0.080125 s, × 0.098351
mozilla-central x000_revs_x000_added_x_copies        9f17a6fc04f9 2d37b966abed :  0.731211 s, 0.005783 s, -0.725428 s, × 0.007909
mozilla-central x000_revs_x000_added_x000_copies      7c97034feb78 4407bd0c6330 :  1.142414 s, 0.102184 s, -1.040230 s, × 0.089446
mozilla-central x0000_revs_xx000_added_0_copies      9eec5917337d 67118cc6dcad :  6.667504 s, 0.046220 s, -6.621284 s, × 0.006932
mozilla-central x0000_revs_xx000_added_x000_copies    f78c615a656c 96a38b690156 :  3.267274 s, 0.315271 s, -2.952003 s, × 0.096494
mozilla-central x00000_revs_x0000_added_x0000_copies  6832ae71433c 4c222a1d9a00 : 16.038104 s, 3.478747 s, -12.559357 s, × 0.216905
mozilla-central x00000_revs_x00000_added_x000_copies  76caed42cf7c 1daa622bbe42 : 20.639928 s, 4.766435 s, -15.873493 s, × 0.230933
mozilla-try    x_revs_x_added_0_copies              aaf6dde0deb8 9790f499805a : 0.080513 s, 0.001214 s, -0.079299 s, × 0.015078
mozilla-try    x_revs_x000_added_0_copies            d8d0222927b4 5bb8ce8c7450 : 0.502965 s, 0.001221 s, -0.501744 s, × 0.002428
mozilla-try    x_revs_x_added_x_copies              092fcca11bdb 936255a0384a : 0.021408 s, 0.000613 s, -0.020795 s, × 0.028634
mozilla-try    x_revs_x00_added_x_copies            b53d2fadbdb5 017afae788ec : 0.228498 s, 0.001904 s, -0.226594 s, × 0.008333
mozilla-try    x_revs_x000_added_x000_copies        20408ad61ce5 6f0ee96e21ad : 1.118490 s, 0.093000 s, -1.025490 s, × 0.083148
mozilla-try    x_revs_x0000_added_x0000_copies      effb563bb7e5 c07a39dc4e80 : 2.188390 s, 0.132194 s, -2.056196 s, × 0.060407
mozilla-try    x000_revs_xx00_added_0_copies        6100d773079a 04a55431795e : 0.089755 s, 0.009069 s, -0.080686 s, × 0.101042
mozilla-try    x000_revs_x000_added_x_copies        9f17a6fc04f9 2d37b966abed : 0.750223 s, 0.006169 s, -0.744054 s, × 0.008223
mozilla-try    x000_revs_x000_added_x000_copies      1346fd0130e4 4c65cbdabc1f : 1.189708 s, 0.115540 s, -1.074168 s, × 0.097116
mozilla-try    x0000_revs_x_added_0_copies          63519bfd42ee a36a2a865d92 : 0.088715 s, 0.435381 s, +0.346666 s, × 4.907637
mozilla-try    x0000_revs_x_added_x_copies          9fe69ff0762d bcabf2a78927 : 0.080765 s, 0.415461 s, +0.334696 s, × 5.144072
mozilla-try    x0000_revs_xx000_added_x_copies      156f6e2674f2 4d0f2c178e66 : 7.487310 s, 0.155946 s, -7.331364 s, × 0.020828
mozilla-try    x0000_revs_xx000_added_0_copies      9eec5917337d 67118cc6dcad : 6.676682 s, 0.048521 s, -6.628161 s, × 0.007267
mozilla-try    x0000_revs_xx000_added_x000_copies    89294cd501d9 7ccb2fc7ccb5 : 7.598509 s, 9.843481 s, +2.244972 s, × 1.295449
mozilla-try    x0000_revs_x0000_added_x0000_copies  e928c65095ed e951f4ad123a : 9.871850 s, 1.465128 s, -8.406722 s, × 0.148415
mozilla-try    x00000_revs_x_added_0_copies          6a320851d377 1ebb79acd503 : 0.092232 s, killed
mozilla-try    x00000_revs_x00000_added_0_copies    dc8a3ca7010e d16fde900c9c : 26.471560 s, 1.374283 s, -25.097277 s, × 0.051915
mozilla-try    x00000_revs_x_added_x_copies          5173c4b6f97c 95d83ee7242d : 0.093892 s, killed
mozilla-try    x00000_revs_x000_added_x_copies      9126823d0e9c ca82787bb23c : 0.227503 s, killed
mozilla-try    x00000_revs_x0000_added_x0000_copies  8d3fafa80d4b eb884023b810 : 19.064699 s, 5.255158 s, -13.809541 s, × 0.275649
mozilla-try    x00000_revs_x00000_added_x0000_copies 1b661134e2ca 1ae03d022d6d : 21.145391 s, killed
mozilla-try    x00000_revs_x00000_added_x000_copies  9b2a99adc05e 8e29777b48e6 : 25.304164 s, killed

Differential Revision: https://phab.mercurial-scm.org/D9302
7d3c51c728c9...
7d3c51c728c9e273e2be70778d5afa391153f44c
Pierre-Yves David
copies: simplify the call to _merge_copies_dict

Let's get the argument into the right order, then call the function once.

Differential Revision: https://phab.mercurial-scm.org/D9417
10bb0856bb9f...
10bb0856bb9fb00affee93662dba5be02089c0a4
Pierre-Yves David
copies-rust: pre-indent some code to clarify the next patch

The next patch will need this new indentation, having it done explicitly
beforehand makes that next patch clearer.

Differential Revision: https://phab.mercurial-scm.org/D9305
57183111a463...
57183111a463924c0196253342048b052a17e83c
Pierre-Yves David
phabricator: introduce a `phabricator.retry` option

For the past 2 days, my connection to phab.mercurial-scm.org became extremely
poor. In practice this mean that any conduit call has a fairly high change to
hang and die. Giving the amount of call done by the phabricator extension, it
means the when I am lucky I can get 1 or 2 Diff to update after a few try, but
anything sizeable doesn't have any hope to get through.

This changesets introduce a new option for the fabricator extension to try retry
failed command itself. So that I can get Diff through.

As you can guess, this changeset managed to reach Phabricator thanks to itself.

Differential Revision: https://phab.mercurial-scm.org/D9449
ed0e1339e4a8...
ed0e1339e4a864bda757cacb39d73110d472817d
Pierre-Yves David
copies-rust: combine the iteration over remove and copies into one

In the underlying data, the copies information and the removal information are
interleaved. And in the consumer code, the consumption could be interleaved too.
So, we make the processing closer to the underlying data by fusing the two
iterators into one. Later, we will directly consume the underlying data and that
logic to combine the two iterators will be unnecessary.

Differential Revision: https://phab.mercurial-scm.org/D9304
cf04af3a5ef1...
cf04af3a5ef178e484b7d2ae58684e4f62c770c4
Pierre-Yves David
copies: fast path no-op merge

If the two sides of the merge are the same (they come an unaltered common
ancestors) we don't need any merging.

Differential Revision: https://phab.mercurial-scm.org/D9415
4d70444c3ea9...
4d70444c3ea9b60f2b6bc5341bb1a78b993aa50e
Pierre-Yves David
phabricator: use the `http.timeout` config for conduit call

Adding some timeout definitely help looping faster through the "bad connection"
that I suffer from. So lets make it available.

Differential Revision: https://phab.mercurial-scm.org/D9453
2367937982ba...
2367937982ba4e49ea147302cb46269b6a60be77
Pierre-Yves David
copies-rust: encapsulate internal sets on `changes`

The goal is to eventually stop creating the underlying set. So we need to
encapsulate the call first.

Differential Revision: https://phab.mercurial-scm.org/D9306
c3d0b3c29ec4...
c3d0b3c29ec4ac4c1389bc76a60560789558fec0
Simon Sapin
bisect: refactor to work on a list of revspecs

This will allow adding a `--rev` flag that can be passed more than once.

Differential Revision: https://phab.mercurial-scm.org/D9372
8b99c473aae2...
8b99c473aae219615ee0e3141e87bbf52b6f8dae
Pierre-Yves David
copies-rust: move is_ancestor caching within the rust code

Now that the OrdMap merging is fast, smaller things start to matters.

We move the caching of `is_ancestor` call within the Rust code. This avoid
round-trip to Python and help us to shave more time on our slower case:

Repo            Cases                                Source-Rev  Dest-Rev        Old-Time      New-Time    Difference  Factor
------------------------------------------------------------------------------------------------------------------------------------
pypy            x0000_revs_x_added_0_copies          d1defd0dc478 c9cb1334cc78 :  2.780174 s,  2.137894 s,  -0.642280 s, × 0.7690
mozilla-try    x0000_revs_xx000_added_x000_copies    89294cd501d9 7ccb2fc7ccb5 :  9.843481 s,  8.100385 s,  -1.743096 s, × 0.8229


Note: I would happily have used native code for ancestors computation, however
I failed (did not tried hard) to created a rust version that goes as fast as
the current C version.

Below are full tables for:
- this change compared to the previous change
- this change compared to filelog performance

Repo            Cases                                Source-Rev  Dest-Rev        Old-Time      New-Time    Difference  Factor
------------------------------------------------------------------------------------------------------------------------------------
mercurial      x_revs_x_added_0_copies              ad6b123de1c7 39cfcef4f463 :  0.000049 s,  0.000047 s,  -0.000002 s, × 0.9592
mercurial      x_revs_x_added_x_copies              2b1c78674230 0c1d10351869 :  0.000182 s,  0.000181 s,  -0.000001 s, × 0.9945
mercurial      x000_revs_x000_added_x_copies        81f8ff2a9bf2 dd3267698d84 :  0.005872 s,  0.005852 s,  -0.000020 s, × 0.9966
pypy            x_revs_x_added_0_copies              aed021ee8ae8 099ed31b181b :  0.000229 s,  0.000229 s,  +0.000000 s, × 1.0000
pypy            x_revs_x000_added_0_copies            4aa4e1f8e19a 359343b9ac0e :  0.000058 s,  0.000058 s,  +0.000000 s, × 1.0000
pypy            x_revs_x_added_x_copies              ac52eb7bbbb0 72e022663155 :  0.000148 s,  0.000146 s,  -0.000002 s, × 0.9865
pypy            x_revs_x00_added_x_copies            c3b14617fbd7 ace7255d9a26 :  0.001205 s,  0.001206 s,  +0.000001 s, × 1.0008
pypy            x_revs_x000_added_x000_copies        df6f7a526b60 a83dc6a2d56f :  0.025662 s,  0.025275 s,  -0.000387 s, × 0.9849
pypy            x000_revs_xx00_added_0_copies        89a76aede314 2f22446ff07e :  0.080113 s,  0.080303 s,  +0.000190 s, × 1.0024
pypy            x000_revs_x000_added_x_copies        8a3b5bfd266e 2c68e87c3efe :  0.153030 s,  0.152641 s,  -0.000389 s, × 0.9975
pypy            x000_revs_x000_added_x000_copies      89a76aede314 7b3dda341c84 :  0.098774 s,  0.099107 s,  +0.000333 s, × 1.0034
pypy            x0000_revs_x_added_0_copies          d1defd0dc478 c9cb1334cc78 :  2.780174 s,  2.137894 s,  -0.642280 s, × 0.7690
pypy            x0000_revs_xx000_added_0_copies      bf2c629d0071 4ffed77c095c :  0.022218 s,  0.022202 s,  -0.000016 s, × 0.9993
pypy            x0000_revs_xx000_added_x000_copies    08ea3258278e d9fa043f30c0 :  0.252125 s,  0.228946 s,  -0.023179 s, × 0.9081
netbeans        x_revs_x_added_0_copies              fb0955ffcbcd a01e9239f9e7 :  0.000186 s,  0.000186 s,  +0.000000 s, × 1.0000
netbeans        x_revs_x000_added_0_copies            6f360122949f 20eb231cc7d0 :  0.000133 s,  0.000133 s,  +0.000000 s, × 1.0000
netbeans        x_revs_x_added_x_copies              1ada3faf6fb6 5a39d12eecf4 :  0.000320 s,  0.000320 s,  +0.000000 s, × 1.0000
netbeans        x_revs_x00_added_x_copies            35be93ba1e2c 9eec5e90c05f :  0.001336 s,  0.001339 s,  +0.000003 s, × 1.0022
netbeans        x000_revs_xx00_added_0_copies        eac3045b4fdd 51d4ae7f1290 :  0.015573 s,  0.015694 s,  +0.000121 s, × 1.0078
netbeans        x000_revs_x000_added_x_copies        e2063d266acd 6081d72689dc :  0.018667 s,  0.018457 s,  -0.000210 s, × 0.9888
netbeans        x000_revs_x000_added_x000_copies      ff453e9fee32 411350406ec2 :  0.112534 s,  0.111691 s,  -0.000843 s, × 0.9925
netbeans        x0000_revs_xx000_added_x000_copies    588c2d1ced70 1aad62e59ddd :  1.231869 s,  1.166017 s,  -0.065852 s, × 0.9465
mozilla-central x_revs_x_added_0_copies              3697f962bb7b 7015fcdd43a2 :  0.000197 s,  0.000197 s,  +0.000000 s, × 1.0000
mozilla-central x_revs_x000_added_0_copies            dd390860c6c9 40d0c5bed75d :  0.000637 s,  0.000626 s,  -0.000011 s, × 0.9827
mozilla-central x_revs_x_added_x_copies              8d198483ae3b 14207ffc2b2f :  0.000303 s,  0.000303 s,  +0.000000 s, × 1.0000
mozilla-central x_revs_x00_added_x_copies            98cbc58cc6bc 446a150332c3 :  0.001663 s,  0.001679 s,  +0.000016 s, × 1.0096
mozilla-central x_revs_x000_added_x000_copies        3c684b4b8f68 0a5e72d1b479 :  0.007008 s,  0.006947 s,  -0.000061 s, × 0.9913
mozilla-central x_revs_x0000_added_x0000_copies      effb563bb7e5 c07a39dc4e80 :  0.127385 s,  0.133070 s,  +0.005685 s, × 1.0446
mozilla-central x000_revs_xx00_added_0_copies        6100d773079a 04a55431795e :  0.008740 s,  0.008705 s,  -0.000035 s, × 0.9960
mozilla-central x000_revs_x000_added_x_copies        9f17a6fc04f9 2d37b966abed :  0.005783 s,  0.005913 s,  +0.000130 s, × 1.0225
mozilla-central x000_revs_x000_added_x000_copies      7c97034feb78 4407bd0c6330 :  0.102184 s,  0.101373 s,  -0.000811 s, × 0.9921
mozilla-central x0000_revs_xx000_added_0_copies      9eec5917337d 67118cc6dcad :  0.046220 s,  0.046526 s,  +0.000306 s, × 1.0066
mozilla-central x0000_revs_xx000_added_x000_copies    f78c615a656c 96a38b690156 :  0.315271 s,  0.313954 s,  -0.001317 s, × 0.9958
mozilla-central x00000_revs_x0000_added_x0000_copies  6832ae71433c 4c222a1d9a00 :  3.478747 s,  3.367395 s,  -0.111352 s, × 0.9680
mozilla-central x00000_revs_x00000_added_x000_copies  76caed42cf7c 1daa622bbe42 :  4.766435 s,  4.691820 s,  -0.074615 s, × 0.9843
mozilla-try    x_revs_x_added_0_copies              aaf6dde0deb8 9790f499805a :  0.001214 s,  0.001199 s,  -0.000015 s, × 0.9876
mozilla-try    x_revs_x000_added_0_copies            d8d0222927b4 5bb8ce8c7450 :  0.001221 s,  0.001216 s,  -0.000005 s, × 0.9959
mozilla-try    x_revs_x_added_x_copies              092fcca11bdb 936255a0384a :  0.000613 s,  0.000613 s,  +0.000000 s, × 1.0000
mozilla-try    x_revs_x00_added_x_copies            b53d2fadbdb5 017afae788ec :  0.001904 s,  0.001906 s,  +0.000002 s, × 1.0011
mozilla-try    x_revs_x000_added_x000_copies        20408ad61ce5 6f0ee96e21ad :  0.093000 s,  0.092766 s,  -0.000234 s, × 0.9975
mozilla-try    x_revs_x0000_added_x0000_copies      effb563bb7e5 c07a39dc4e80 :  0.132194 s,  0.136074 s,  +0.003880 s, × 1.0294
mozilla-try    x000_revs_xx00_added_0_copies        6100d773079a 04a55431795e :  0.009069 s,  0.009067 s,  -0.000002 s, × 0.9998
mozilla-try    x000_revs_x000_added_x_copies        9f17a6fc04f9 2d37b966abed :  0.006169 s,  0.006243 s,  +0.000074 s, × 1.0120
mozilla-try    x000_revs_x000_added_x000_copies      1346fd0130e4 4c65cbdabc1f :  0.115540 s,  0.114463 s,  -0.001077 s, × 0.9907
mozilla-try    x0000_revs_x_added_0_copies          63519bfd42ee a36a2a865d92 :  0.435381 s,  0.433683 s,  -0.001698 s, × 0.9961
mozilla-try    x0000_revs_x_added_x_copies          9fe69ff0762d bcabf2a78927 :  0.415461 s,  0.411278 s,  -0.004183 s, × 0.9899
mozilla-try    x0000_revs_xx000_added_x_copies      156f6e2674f2 4d0f2c178e66 :  0.155946 s,  0.155133 s,  -0.000813 s, × 0.9948
mozilla-try    x0000_revs_xx000_added_0_copies      9eec5917337d 67118cc6dcad :  0.048521 s,  0.048933 s,  +0.000412 s, × 1.0085
mozilla-try    x0000_revs_xx000_added_x000_copies    89294cd501d9 7ccb2fc7ccb5 :  9.843481 s,  8.100385 s,  -1.743096 s, × 0.8229
mozilla-try    x0000_revs_x0000_added_x0000_copies  e928c65095ed e951f4ad123a :  1.465128 s,  1.446720 s,  -0.018408 s, × 0.9874
mozilla-try    x00000_revs_x00000_added_0_copies    dc8a3ca7010e d16fde900c9c :  1.374283 s,  1.369537 s,  -0.004746 s, × 0.9965
mozilla-try    x00000_revs_x0000_added_x0000_copies  8d3fafa80d4b eb884023b810 :  5.255158 s,  5.186079 s,  -0.069079 s, × 0.9869

Repo            Case                                  Source-Rev  Dest-Rev        filelog    sidedata    Difference    Factor
--------------------------------------------------------------------------------------------------------------------------------------
mercurial      x_revs_x_added_0_copies              ad6b123de1c7 39cfcef4f463 :  0.000892 s, 0.000047 s,  -0.000845 s,    × 0.052691
mercurial      x_revs_x_added_x_copies              2b1c78674230 0c1d10351869 :  0.001823 s, 0.000181 s,  -0.001642 s,    × 0.099287
mercurial      x000_revs_x000_added_x_copies        81f8ff2a9bf2 dd3267698d84 :  0.018063 s, 0.005852 s,  -0.012211 s,    × 0.323977
pypy            x_revs_x_added_0_copies              aed021ee8ae8 099ed31b181b :  0.001505 s, 0.000229 s,  -0.001276 s,    × 0.152159
pypy            x_revs_x000_added_0_copies            4aa4e1f8e19a 359343b9ac0e :  0.205895 s, 0.000058 s,  -0.205837 s,    × 0.000282
pypy            x_revs_x_added_x_copies              ac52eb7bbbb0 72e022663155 :  0.017021 s, 0.000146 s,  -0.016875 s,    × 0.008578
pypy            x_revs_x00_added_x_copies            c3b14617fbd7 ace7255d9a26 :  0.019422 s, 0.001206 s,  -0.018216 s,    × 0.062095
pypy            x_revs_x000_added_x000_copies        df6f7a526b60 a83dc6a2d56f :  0.767740 s, 0.025275 s,  -0.742465 s,    × 0.032921
pypy            x000_revs_xx00_added_0_copies        89a76aede314 2f22446ff07e :  1.188515 s, 0.080303 s,  -1.108212 s,    × 0.067566
pypy            x000_revs_x000_added_x_copies        8a3b5bfd266e 2c68e87c3efe :  1.251968 s, 0.152641 s,  -1.099327 s,    × 0.121921
pypy            x000_revs_x000_added_x000_copies      89a76aede314 7b3dda341c84 :  1.616799 s, 0.099107 s,  -1.517692 s,    × 0.061298
pypy            x0000_revs_x_added_0_copies          d1defd0dc478 c9cb1334cc78 :  0.001057 s, 2.137894 s,  +2.136837 s, × 2022.605487
pypy            x0000_revs_xx000_added_0_copies      bf2c629d0071 4ffed77c095c :  1.069485 s, 0.022202 s,  -1.047283 s,    × 0.020760
pypy            x0000_revs_xx000_added_x000_copies    08ea3258278e d9fa043f30c0 :  1.350162 s, 0.228946 s,  -1.121216 s,    × 0.169569
netbeans        x_revs_x_added_0_copies              fb0955ffcbcd a01e9239f9e7 :  0.028008 s, 0.000186 s,  -0.027822 s,    × 0.006641
netbeans        x_revs_x000_added_0_copies            6f360122949f 20eb231cc7d0 :  0.132281 s, 0.000133 s,  -0.132148 s,    × 0.001005
netbeans        x_revs_x_added_x_copies              1ada3faf6fb6 5a39d12eecf4 :  0.025311 s, 0.000320 s,  -0.024991 s,    × 0.012643
netbeans        x_revs_x00_added_x_copies            35be93ba1e2c 9eec5e90c05f :  0.052957 s, 0.001339 s,  -0.051618 s,    × 0.025285
netbeans        x000_revs_xx00_added_0_copies        eac3045b4fdd 51d4ae7f1290 :  0.038011 s, 0.015694 s,  -0.022317 s,    × 0.412880
netbeans        x000_revs_x000_added_x_copies        e2063d266acd 6081d72689dc :  0.198639 s, 0.018457 s,  -0.180182 s,    × 0.092917
netbeans        x000_revs_x000_added_x000_copies      ff453e9fee32 411350406ec2 :  0.955713 s, 0.111691 s,  -0.844022 s,    × 0.116867
netbeans        x0000_revs_xx000_added_x000_copies    588c2d1ced70 1aad62e59ddd :  3.838886 s, 1.166017 s,  -2.672869 s,    × 0.303738
mozilla-central x_revs_x_added_0_copies              3697f962bb7b 7015fcdd43a2 :  0.024548 s, 0.000197 s,  -0.024351 s,    × 0.008025
mozilla-central x_revs_x000_added_0_copies            dd390860c6c9 40d0c5bed75d :  0.143394 s, 0.000626 s,  -0.142768 s,    × 0.004366
mozilla-central x_revs_x_added_x_copies              8d198483ae3b 14207ffc2b2f :  0.026046 s, 0.000303 s,  -0.025743 s,    × 0.011633
mozilla-central x_revs_x00_added_x_copies            98cbc58cc6bc 446a150332c3 :  0.085440 s, 0.001679 s,  -0.083761 s,    × 0.019651
mozilla-central x_revs_x000_added_x000_copies        3c684b4b8f68 0a5e72d1b479 :  0.195656 s, 0.006947 s,  -0.188709 s,    × 0.035506
mozilla-central x_revs_x0000_added_x0000_copies      effb563bb7e5 c07a39dc4e80 :  2.190874 s, 0.133070 s,  -2.057804 s,    × 0.060738
mozilla-central x000_revs_xx00_added_0_copies        6100d773079a 04a55431795e :  0.090208 s, 0.008705 s,  -0.081503 s,    × 0.096499
mozilla-central x000_revs_x000_added_x_copies        9f17a6fc04f9 2d37b966abed :  0.747367 s, 0.005913 s,  -0.741454 s,    × 0.007912
mozilla-central x000_revs_x000_added_x000_copies      7c97034feb78 4407bd0c6330 :  1.152863 s, 0.101373 s,  -1.051490 s,    × 0.087932
mozilla-central x0000_revs_xx000_added_0_copies      9eec5917337d 67118cc6dcad :  6.598336 s, 0.046526 s,  -6.551810 s,    × 0.007051
mozilla-central x0000_revs_xx000_added_x000_copies    f78c615a656c 96a38b690156 :  3.255015 s, 0.313954 s,  -2.941061 s,    × 0.096452
mozilla-central x00000_revs_x0000_added_x0000_copies  6832ae71433c 4c222a1d9a00 : 15.668041 s, 3.367395 s, -12.300646 s,    × 0.214921
mozilla-central x00000_revs_x00000_added_x000_copies  76caed42cf7c 1daa622bbe42 : 20.439638 s, 4.691820 s, -15.747818 s,    × 0.229545
mozilla-try    x_revs_x_added_0_copies              aaf6dde0deb8 9790f499805a :  0.080923 s, 0.001199 s,  -0.079724 s,    × 0.014817
mozilla-try    x_revs_x000_added_0_copies            d8d0222927b4 5bb8ce8c7450 :  0.498456 s, 0.001216 s,  -0.497240 s,    × 0.002440
mozilla-try    x_revs_x_added_x_copies              092fcca11bdb 936255a0384a :  0.020798 s, 0.000613 s,  -0.020185 s,    × 0.029474
mozilla-try    x_revs_x00_added_x_copies            b53d2fadbdb5 017afae788ec :  0.226930 s, 0.001906 s,  -0.225024 s,    × 0.008399
mozilla-try    x_revs_x000_added_x000_copies        20408ad61ce5 6f0ee96e21ad :  1.113005 s, 0.092766 s,  -1.020239 s,    × 0.083347
mozilla-try    x_revs_x0000_added_x0000_copies      effb563bb7e5 c07a39dc4e80 :  2.230671 s, 0.136074 s,  -2.094597 s,    × 0.061001
mozilla-try    x000_revs_xx00_added_0_copies        6100d773079a 04a55431795e :  0.089672 s, 0.009067 s,  -0.080605 s,    × 0.101113
mozilla-try    x000_revs_x000_added_x_copies        9f17a6fc04f9 2d37b966abed :  0.740221 s, 0.006243 s,  -0.733978 s,    × 0.008434
mozilla-try    x000_revs_x000_added_x000_copies      1346fd0130e4 4c65cbdabc1f :  1.185881 s, 0.114463 s,  -1.071418 s,    × 0.096521
mozilla-try    x0000_revs_x_added_0_copies          63519bfd42ee a36a2a865d92 :  0.086072 s, 0.433683 s,  +0.347611 s,    × 5.038607
mozilla-try    x0000_revs_x_added_x_copies          9fe69ff0762d bcabf2a78927 :  0.081321 s, 0.411278 s,  +0.329957 s,    × 5.057464
mozilla-try    x0000_revs_xx000_added_x_copies      156f6e2674f2 4d0f2c178e66 :  7.528370 s, 0.155133 s,  -7.373237 s,    × 0.020606
mozilla-try    x0000_revs_xx000_added_0_copies      9eec5917337d 67118cc6dcad :  6.757368 s, 0.048933 s,  -6.708435 s,    × 0.007241
mozilla-try    x0000_revs_xx000_added_x000_copies    89294cd501d9 7ccb2fc7ccb5 :  7.643752 s, 8.100385 s,  +0.456633 s,    × 1.059739
mozilla-try    x0000_revs_x0000_added_x0000_copies  e928c65095ed e951f4ad123a :  9.704242 s, 1.446720 s,  -8.257522 s,    × 0.149081
mozilla-try    x00000_revs_x_added_0_copies          6a320851d377 1ebb79acd503 :  0.092845 s, killed
mozilla-try    x00000_revs_x00000_added_0_copies    dc8a3ca7010e d16fde900c9c : 26.626870 s, 1.369537 s, -25.257333 s,    × 0.051434
mozilla-try    x00000_revs_x_added_x_copies          5173c4b6f97c 95d83ee7242d :  0.092953 s, killed
mozilla-try    x00000_revs_x000_added_x_copies      9126823d0e9c ca82787bb23c :  0.227131 s, killed
mozilla-try    x00000_revs_x0000_added_x0000_copies  8d3fafa80d4b eb884023b810 : 18.884666 s, 5.186079 s, -13.698587 s,    × 0.274619
mozilla-try    x00000_revs_x00000_added_x0000_copies 1b661134e2ca 1ae03d022d6d : 21.451622 s, killed
mozilla-try    x00000_revs_x00000_added_x000_copies  9b2a99adc05e 8e29777b48e6 : 25.152558 s, killed

Differential Revision: https://phab.mercurial-scm.org/D9303
bc1b4eb21da9...
bc1b4eb21da984067fe3966a6d3aec8f80cd0ec8
Matt Harbison
helptext: document the mechanism for extensions to report a version

Differential Revision: https://phab.mercurial-scm.org/D9448
35d5d1d8bcf0...
35d5d1d8bcf08edc4d25d61bb1cc37a5b7eced0d
Joerg Sonnenberger
tests: simplify and extend pull-bundle test using debugbuilddag

Differential Revision: https://phab.mercurial-scm.org/D9443
3302584ac0c7...
3302584ac0c7aa8908e569d3cfeae3c69acf15e2
Pierre-Yves David
heptapod-ci: do not publish changeset when doing the local clone

Otherwise, checks and script relying on some changeset being draft fails.

Differential Revision: https://phab.mercurial-scm.org/D9461
0d99778af68a...
0d99778af68a2a3abb0d4bca459d51782f41c2f0
Pierre-Yves David
copies-rust: use immutable "OrdMap" to store copies information

The large majority of time is currently spent coping and merging directories.
the `IM` crate offer "immutable" Map, that use "copy on write" internally.  The
new object use the same API as the standard HashMap.  So switching to it is
trivial and it reduce copying cost significantly. More importantly, using
immutable structure will unlock new possibility for a massive speed up of the
"merging" part. This will came in a later changesets.

Performance wise, we get very significant boost in the worst case. Below is some
highlight of how we fare compared to the previous changeset.

Repo            Cases                                Source-Rev  Dest-Rev        Old-Time      New-Time    Difference  Factor
------------------------------------------------------------------------------------------------------------------------------------
pypy            x0000_revs_x_added_0_copies          d1defd0dc478 c9cb1334cc78 :  62.468362 s,  33.527067 s, -28.941295 s, × 0.5367
mozilla-central x000_revs_x000_added_x000_copies      7c97034feb78 4407bd0c6330 :  3.619850 s,  0.963905 s,  -2.655945 s, × 0.2663
mozilla-central x0000_revs_xx000_added_x000_copies    f78c615a656c 96a38b690156 :  11.926587 s,  4.217003 s,  -7.709584 s, × 0.3536
mozilla-try    x0000_revs_x_added_0_copies          63519bfd42ee a36a2a865d92 :  10.674920 s,  1.114864 s,  -9.560056 s, × 0.1044
mozilla-try    x00000_revs_x00000_added_0_copies    dc8a3ca7010e d16fde900c9c :  19.647038 s,  1.442793 s, -18.204245 s, × 0.0734


And we sometimes catch up with the performance of the python code as highlighted
below:

Repo            Cases                                Source-Rev  Dest-Rev        Py-time      Rust-time    Difference  Factor
------------------------------------------------------------------------------------------------------------------------------------
mozilla-try    x00000_revs_x00000_added_0_copies    dc8a3ca7010e d16fde900c9c :  1.074593 s,  1.442793 s,  +0.368200 s, × 1.3426

However, multiple case remains significantly slower, as highlighted below

Repo            Cases                                Source-Rev  Dest-Rev        Py-time      Rust-time    Difference  Factor
------------------------------------------------------------------------------------------------------------------------------------
mozilla-central x000_revs_x000_added_x000_copies      7c97034feb78 4407bd0c6330 :  0.190133 s,  0.963905 s,  +0.773772 s, × 5.0696
mozilla-central x0000_revs_xx000_added_x000_copies    f78c615a656c 96a38b690156 :  0.440694 s,  4.217003 s,  +3.776309 s, × 9.5690
mozilla-try    x0000_revs_x_added_0_copies          63519bfd42ee a36a2a865d92 :  0.370675 s,  1.114864 s,  +0.744189 s, × 3.0077
pypy            x0000_revs_x_added_0_copies          d1defd0dc478 c9cb1334cc78 :  3.581556 s,  33.527067 s, +29.945511 s, × 9.3610

Below are two different tables for full performance comparison
- this changeset against the previous one (spoiler: it is much better)
- this changeset against the python code  (spoiler: still slower, but it gets more comparable)

This changeset compared to the previous one
===========================================

Repo            Cases                                Source-Rev  Dest-Rev        Old-Time      New-Time    Difference  Factor
------------------------------------------------------------------------------------------------------------------------------------
mercurial      x_revs_x_added_0_copies              ad6b123de1c7 39cfcef4f463 :  0.000046 s,  0.000049 s,  +0.000003 s, × 1.0652
mercurial      x_revs_x_added_x_copies              2b1c78674230 0c1d10351869 :  0.000173 s,  0.000179 s,  +0.000006 s, × 1.0347
mercurial      x000_revs_x000_added_x_copies        81f8ff2a9bf2 dd3267698d84 :  0.006303 s,  0.006494 s,  +0.000191 s, × 1.0303
pypy            x_revs_x_added_0_copies              aed021ee8ae8 099ed31b181b :  0.000229 s,  0.000339 s,  +0.000110 s, × 1.4803
pypy            x_revs_x000_added_0_copies            4aa4e1f8e19a 359343b9ac0e :  0.000056 s,  0.000057 s,  +0.000001 s, × 1.0179
pypy            x_revs_x_added_x_copies              ac52eb7bbbb0 72e022663155 :  0.000143 s,  0.000299 s,  +0.000156 s, × 2.0909
pypy            x_revs_x00_added_x_copies            c3b14617fbd7 ace7255d9a26 :  0.001166 s,  0.001200 s,  +0.000034 s, × 1.0292
pypy            x_revs_x000_added_x000_copies        df6f7a526b60 a83dc6a2d56f :  0.022931 s,  0.025120 s,  +0.002189 s, × 1.0955
pypy            x000_revs_xx00_added_0_copies        89a76aede314 2f22446ff07e :  0.852446 s,  0.506921 s,  -0.345525 s, × 0.5947
pypy            x000_revs_x000_added_x_copies        8a3b5bfd266e 2c68e87c3efe :  2.221824 s,  1.272060 s,  -0.949764 s, × 0.5725
pypy            x000_revs_x000_added_x000_copies      89a76aede314 7b3dda341c84 :  1.194162 s,  0.690941 s,  -0.503221 s, × 0.5786
pypy            x0000_revs_x_added_0_copies          d1defd0dc478 c9cb1334cc78 :  62.468362 s,  33.527067 s, -28.941295 s, × 0.5367
pypy            x0000_revs_xx000_added_0_copies      bf2c629d0071 4ffed77c095c :  0.022116 s,  0.021970 s,  -0.000146 s, × 0.9934
pypy            x0000_revs_xx000_added_x000_copies    08ea3258278e d9fa043f30c0 :  2.972788 s,  1.772094 s,  -1.200694 s, × 0.5961
netbeans        x_revs_x_added_0_copies              fb0955ffcbcd a01e9239f9e7 :  0.000180 s,  0.000185 s,  +0.000005 s, × 1.0278
netbeans        x_revs_x000_added_0_copies            6f360122949f 20eb231cc7d0 :  0.000123 s,  0.000135 s,  +0.000012 s, × 1.0976
netbeans        x_revs_x_added_x_copies              1ada3faf6fb6 5a39d12eecf4 :  0.000315 s,  0.000329 s,  +0.000014 s, × 1.0444
netbeans        x_revs_x00_added_x_copies            35be93ba1e2c 9eec5e90c05f :  0.001297 s,  0.001343 s,  +0.000046 s, × 1.0355
netbeans        x000_revs_xx00_added_0_copies        eac3045b4fdd 51d4ae7f1290 :  0.024884 s,  0.029396 s,  +0.004512 s, × 1.1813
netbeans        x000_revs_x000_added_x_copies        e2063d266acd 6081d72689dc :  0.032653 s,  0.040210 s,  +0.007557 s, × 1.2314
netbeans        x000_revs_x000_added_x000_copies      ff453e9fee32 411350406ec2 :  4.230118 s,  4.556794 s,  +0.326676 s, × 1.0772
mozilla-central x_revs_x_added_0_copies              3697f962bb7b 7015fcdd43a2 :  0.000197 s,  0.000199 s,  +0.000002 s, × 1.0102
mozilla-central x_revs_x000_added_0_copies            dd390860c6c9 40d0c5bed75d :  0.000622 s,  0.000639 s,  +0.000017 s, × 1.0273
mozilla-central x_revs_x_added_x_copies              8d198483ae3b 14207ffc2b2f :  0.000296 s,  0.000542 s,  +0.000246 s, × 1.8311
mozilla-central x_revs_x00_added_x_copies            98cbc58cc6bc 446a150332c3 :  0.001626 s,  0.001685 s,  +0.000059 s, × 1.0363
mozilla-central x_revs_x000_added_x000_copies        3c684b4b8f68 0a5e72d1b479 :  0.006218 s,  0.006954 s,  +0.000736 s, × 1.1184
mozilla-central x_revs_x0000_added_x0000_copies      effb563bb7e5 c07a39dc4e80 :  0.132760 s,  0.132938 s,  +0.000178 s, × 1.0013
mozilla-central x000_revs_xx00_added_0_copies        6100d773079a 04a55431795e :  0.029001 s,  0.008683 s,  -0.020318 s, × 0.2994
mozilla-central x000_revs_x000_added_x_copies        9f17a6fc04f9 2d37b966abed :  0.005886 s,  0.005956 s,  +0.000070 s, × 1.0119
mozilla-central x000_revs_x000_added_x000_copies      7c97034feb78 4407bd0c6330 :  3.619850 s,  0.963905 s,  -2.655945 s, × 0.2663
mozilla-central x0000_revs_xx000_added_0_copies      9eec5917337d 67118cc6dcad :  0.058678 s,  0.049239 s,  -0.009439 s, × 0.8391
mozilla-central x0000_revs_xx000_added_x000_copies    f78c615a656c 96a38b690156 :  11.926587 s,  4.217003 s,  -7.709584 s, × 0.3536
mozilla-try    x_revs_x_added_0_copies              aaf6dde0deb8 9790f499805a :  0.001204 s,  0.001197 s,  -0.000007 s, × 0.9942
mozilla-try    x_revs_x000_added_0_copies            d8d0222927b4 5bb8ce8c7450 :  0.001217 s,  0.001213 s,  -0.000004 s, × 0.9967
mozilla-try    x_revs_x_added_x_copies              092fcca11bdb 936255a0384a :  0.000605 s,  0.000762 s,  +0.000157 s, × 1.2595
mozilla-try    x_revs_x00_added_x_copies            b53d2fadbdb5 017afae788ec :  0.001876 s,  0.001909 s,  +0.000033 s, × 1.0176
mozilla-try    x_revs_x000_added_x000_copies        20408ad61ce5 6f0ee96e21ad :  0.078190 s,  0.093021 s,  +0.014831 s, × 1.1897
mozilla-try    x_revs_x0000_added_x0000_copies      effb563bb7e5 c07a39dc4e80 :  0.135428 s,  0.134536 s,  -0.000892 s, × 0.9934
mozilla-try    x000_revs_xx00_added_0_copies        6100d773079a 04a55431795e :  0.029123 s,  0.009071 s,  -0.020052 s, × 0.3115
mozilla-try    x000_revs_x000_added_x_copies        9f17a6fc04f9 2d37b966abed :  0.006141 s,  0.006206 s,  +0.000065 s, × 1.0106
mozilla-try    x000_revs_x000_added_x000_copies      1346fd0130e4 4c65cbdabc1f :  4.857827 s,  1.150502 s,  -3.707325 s, × 0.2368
mozilla-try    x0000_revs_x_added_0_copies          63519bfd42ee a36a2a865d92 :  10.674920 s,  1.114864 s,  -9.560056 s, × 0.1044
mozilla-try    x0000_revs_x_added_x_copies          9fe69ff0762d bcabf2a78927 :  9.789462 s,  1.042658 s,  -8.746804 s, × 0.1065
mozilla-try    x0000_revs_xx000_added_x_copies      156f6e2674f2 4d0f2c178e66 :  1.087890 s,  0.447402 s,  -0.640488 s, × 0.4113
mozilla-try    x0000_revs_xx000_added_0_copies      9eec5917337d 67118cc6dcad :  0.060556 s,  0.051132 s,  -0.009424 s, × 0.8444
mozilla-try    x0000_revs_xx000_added_x000_copies    89294cd501d9 7ccb2fc7ccb5 : killed        ,  83.508590 s
mozilla-try    x0000_revs_x0000_added_x0000_copies  e928c65095ed e951f4ad123a : killed        ,  55.079813 s
mozilla-try    x00000_revs_x00000_added_0_copies    dc8a3ca7010e d16fde900c9c :  19.647038 s,  1.442793 s, -18.204245 s, × 0.0734


This changeset compared to the Python Code
==========================================


Repo            Cases                                Source-Rev  Dest-Rev        Py-time      Rust-time    Difference  Factor
------------------------------------------------------------------------------------------------------------------------------------
mercurial      x_revs_x_added_0_copies              ad6b123de1c7 39cfcef4f463 :  0.000044 s,  0.000049 s,  +0.000005 s, × 1.1136
mercurial      x_revs_x_added_x_copies              2b1c78674230 0c1d10351869 :  0.000138 s,  0.000179 s,  +0.000041 s, × 1.2971
mercurial      x000_revs_x000_added_x_copies        81f8ff2a9bf2 dd3267698d84 :  0.005052 s,  0.006494 s,  +0.001442 s, × 1.2854
pypy            x_revs_x_added_0_copies              aed021ee8ae8 099ed31b181b :  0.000219 s,  0.000339 s,  +0.000120 s, × 1.5479
pypy            x_revs_x000_added_0_copies            4aa4e1f8e19a 359343b9ac0e :  0.000055 s,  0.000057 s,  +0.000002 s, × 1.0364
pypy            x_revs_x_added_x_copies              ac52eb7bbbb0 72e022663155 :  0.000128 s,  0.000299 s,  +0.000171 s, × 2.3359
pypy            x_revs_x00_added_x_copies            c3b14617fbd7 ace7255d9a26 :  0.001089 s,  0.001200 s,  +0.000111 s, × 1.1019
pypy            x_revs_x000_added_x000_copies        df6f7a526b60 a83dc6a2d56f :  0.017407 s,  0.025120 s,  +0.007713 s, × 1.4431
pypy            x000_revs_xx00_added_0_copies        89a76aede314 2f22446ff07e :  0.094175 s,  0.506921 s,  +0.412746 s, × 5.3828
pypy            x000_revs_x000_added_x_copies        8a3b5bfd266e 2c68e87c3efe :  0.238009 s,  1.272060 s,  +1.034051 s, × 5.3446
pypy            x000_revs_x000_added_x000_copies      89a76aede314 7b3dda341c84 :  0.125876 s,  0.690941 s,  +0.565065 s, × 5.4891
pypy            x0000_revs_x_added_0_copies          d1defd0dc478 c9cb1334cc78 :  3.581556 s,  33.527067 s, +29.945511 s, × 9.3610
pypy            x0000_revs_xx000_added_0_copies      bf2c629d0071 4ffed77c095c :  0.016721 s,  0.021970 s,  +0.005249 s, × 1.3139
pypy            x0000_revs_xx000_added_x000_copies    08ea3258278e d9fa043f30c0 :  0.242367 s,  1.772094 s,  +1.529727 s, × 7.3116
netbeans        x_revs_x_added_0_copies              fb0955ffcbcd a01e9239f9e7 :  0.000165 s,  0.000185 s,  +0.000020 s, × 1.1212
netbeans        x_revs_x000_added_0_copies            6f360122949f 20eb231cc7d0 :  0.000114 s,  0.000135 s,  +0.000021 s, × 1.1842
netbeans        x_revs_x_added_x_copies              1ada3faf6fb6 5a39d12eecf4 :  0.000296 s,  0.000329 s,  +0.000033 s, × 1.1115
netbeans        x_revs_x00_added_x_copies            35be93ba1e2c 9eec5e90c05f :  0.001124 s,  0.001343 s,  +0.000219 s, × 1.1948
netbeans        x000_revs_xx00_added_0_copies        eac3045b4fdd 51d4ae7f1290 :  0.013060 s,  0.029396 s,  +0.016336 s, × 2.2508
netbeans        x000_revs_x000_added_x_copies        e2063d266acd 6081d72689dc :  0.017112 s,  0.040210 s,  +0.023098 s, × 2.3498
netbeans        x000_revs_x000_added_x000_copies      ff453e9fee32 411350406ec2 :  0.660350 s,  4.556794 s,  +3.896444 s, × 6.9006
netbeans        x0000_revs_xx000_added_x000_copies    588c2d1ced70 1aad62e59ddd :  10.032499 s, killed
mozilla-central x_revs_x_added_0_copies              3697f962bb7b 7015fcdd43a2 :  0.000189 s,  0.000199 s,  +0.000010 s, × 1.0529
mozilla-central x_revs_x000_added_0_copies            dd390860c6c9 40d0c5bed75d :  0.000462 s,  0.000639 s,  +0.000177 s, × 1.3831
mozilla-central x_revs_x_added_x_copies              8d198483ae3b 14207ffc2b2f :  0.000270 s,  0.000542 s,  +0.000272 s, × 2.0074
mozilla-central x_revs_x00_added_x_copies            98cbc58cc6bc 446a150332c3 :  0.001474 s,  0.001685 s,  +0.000211 s, × 1.1431
mozilla-central x_revs_x000_added_x000_copies        3c684b4b8f68 0a5e72d1b479 :  0.004806 s,  0.006954 s,  +0.002148 s, × 1.4469
mozilla-central x_revs_x0000_added_x0000_copies      effb563bb7e5 c07a39dc4e80 :  0.085150 s,  0.132938 s,  +0.047788 s, × 1.5612
mozilla-central x000_revs_xx00_added_0_copies        6100d773079a 04a55431795e :  0.007064 s,  0.008683 s,  +0.001619 s, × 1.2292
mozilla-central x000_revs_x000_added_x_copies        9f17a6fc04f9 2d37b966abed :  0.004741 s,  0.005956 s,  +0.001215 s, × 1.2563
mozilla-central x000_revs_x000_added_x000_copies      7c97034feb78 4407bd0c6330 :  0.190133 s,  0.963905 s,  +0.773772 s, × 5.0696
mozilla-central x0000_revs_xx000_added_0_copies      9eec5917337d 67118cc6dcad :  0.035651 s,  0.049239 s,  +0.013588 s, × 1.3811
mozilla-central x0000_revs_xx000_added_x000_copies    f78c615a656c 96a38b690156 :  0.440694 s,  4.217003 s,  +3.776309 s, × 9.5690
mozilla-central x00000_revs_x0000_added_x0000_copies  6832ae71433c 4c222a1d9a00 :  18.454163 s, killed
mozilla-central x00000_revs_x00000_added_x000_copies  76caed42cf7c 1daa622bbe42 :  31.562719 s, killed
mozilla-try    x_revs_x_added_0_copies              aaf6dde0deb8 9790f499805a :  0.001189 s,  0.001197 s,  +0.000008 s, × 1.0067
mozilla-try    x_revs_x000_added_0_copies            d8d0222927b4 5bb8ce8c7450 :  0.001204 s,  0.001213 s,  +0.000009 s, × 1.0075
mozilla-try    x_revs_x_added_x_copies              092fcca11bdb 936255a0384a :  0.000586 s,  0.000762 s,  +0.000176 s, × 1.3003
mozilla-try    x_revs_x00_added_x_copies            b53d2fadbdb5 017afae788ec :  0.001845 s,  0.001909 s,  +0.000064 s, × 1.0347
mozilla-try    x_revs_x000_added_x000_copies        20408ad61ce5 6f0ee96e21ad :  0.063822 s,  0.093021 s,  +0.029199 s, × 1.4575
mozilla-try    x_revs_x0000_added_x0000_copies      effb563bb7e5 c07a39dc4e80 :  0.088038 s,  0.134536 s,  +0.046498 s, × 1.5282
mozilla-try    x000_revs_xx00_added_0_copies        6100d773079a 04a55431795e :  0.007389 s,  0.009071 s,  +0.001682 s, × 1.2276
mozilla-try    x000_revs_x000_added_x_copies        9f17a6fc04f9 2d37b966abed :  0.004868 s,  0.006206 s,  +0.001338 s, × 1.2749
mozilla-try    x000_revs_x000_added_x000_copies      1346fd0130e4 4c65cbdabc1f :  0.222450 s,  1.150502 s,  +0.928052 s, × 5.1720
mozilla-try    x0000_revs_x_added_0_copies          63519bfd42ee a36a2a865d92 :  0.370675 s,  1.114864 s,  +0.744189 s, × 3.0077
mozilla-try    x0000_revs_x_added_x_copies          9fe69ff0762d bcabf2a78927 :  0.358020 s,  1.042658 s,  +0.684638 s, × 2.9123
mozilla-try    x0000_revs_xx000_added_x_copies      156f6e2674f2 4d0f2c178e66 :  0.145235 s,  0.447402 s,  +0.302167 s, × 3.0805
mozilla-try    x0000_revs_xx000_added_0_copies      9eec5917337d 67118cc6dcad :  0.037606 s,  0.051132 s,  +0.013526 s, × 1.3597
mozilla-try    x0000_revs_xx000_added_x000_copies    89294cd501d9 7ccb2fc7ccb5 :  7.382439 s,  83.508590 s, +76.126151 s, × 11.3118
mozilla-try    x0000_revs_x0000_added_x0000_copies  e928c65095ed e951f4ad123a :  7.273506 s,  55.079813 s, +47.806307 s, × 7.5727
mozilla-try    x00000_revs_x00000_added_0_copies    dc8a3ca7010e d16fde900c9c :  1.074593 s,  1.442793 s,  +0.368200 s, × 1.3426
mozilla-try    x00000_revs_x0000_added_x0000_copies  8d3fafa80d4b eb884023b810 :  27.746195 s, killed

Differential Revision: https://phab.mercurial-scm.org/D9300
d9a05b11904d...
d9a05b11904d22038a6094c1ccfcbfd49482ae27
Matt Harbison
make: drop Trusty and Artful targets

These were removed from the packaging makefile in 0363bb086c57.

Differential Revision: https://phab.mercurial-scm.org/D9395
f6a1540dc572...
f6a1540dc57292312543f753868c2e1fe01a938a
Matt Harbison
packaging: add `HG_DOCKER_OWN_USER` to `dockerdeb` like exists in `dockerrpm`

I was getting build failures when it was trying to write to the working
directory on CentOS 7 without this.  It is basically the same as was added to
the RPM builder in 4c0d4bbdc395.

For some reason, this doesn't work with Xenial, and the only solution I found
was to invoke it with UID 1000 on the host side.  It doesn't EOL until April
2024, but it also has python 3.5.2, so this build complication is the least of
the problems with supporting it after py2 is dropped.

Differential Revision: https://phab.mercurial-scm.org/D9394
46a16b2c082d...
46a16b2c082d814ebc175b657716904517593542
Pierre-Yves David
copies-rust: pre-indent some code to clarify the next changeset

The next changeset will massively rewrite the next function. However having a
clear diff on the core semantic of the function will help making the next
changesets clearer. So we do most of the churn beforehand.

Differential Revision: https://phab.mercurial-scm.org/D9301
971424517e17...
971424517e17cad2dc00fe140627a26ec3de49c2
Matt Harbison
packaging: drop Disco (19.04) and add Focal (20.04)

Disco support ended in January 2020, and Focal does not have an announced EOL.

Something is now installing and configuring `tzdata`, which was throwing up an
interactive prompt to configure the timezone.  Aside from being hostile to
automation, the prompt didn't actually accept input and hung the process.  This
propagates the host's timezone into the image via environment variable in order
to skip the prompt, and avoid hardcoding a value.

Differential Revision: https://phab.mercurial-scm.org/D9396
a66568f20ddc...
a66568f20ddcf4b5c7c10c277a650709964e93dd
Pierre-Yves David
copies: use the rust code for `combine_changeset_copies`

Changeset centric copy tracing now use the rust code. The rust code focussed on
simplicity and will be optimised later. So the performance is not great yet. Now
that all the pieces are in place we can start working on performance in the
coming changesets.

Below is a table that summarize how slower we got:

Repo            Cases                                Source-Rev  Dest-Rev        Py-time      Rust-time    Difference  Factor
------------------------------------------------------------------------------------------------------------------------------------
mercurial      x_revs_x_added_0_copies              ad6b123de1c7 39cfcef4f463 :  0.000049 s,  0.000046 s,  -0.000003 s, × 0.9388
mercurial      x_revs_x_added_x_copies              2b1c78674230 0c1d10351869 :  0.000112 s,  0.000173 s,  +0.000061 s, × 1.5446
mercurial      x000_revs_x000_added_x_copies        81f8ff2a9bf2 dd3267698d84 :  0.004216 s,  0.006303 s,  +0.002087 s, × 1.4950
pypy            x_revs_x_added_0_copies              aed021ee8ae8 099ed31b181b :  0.000204 s,  0.000229 s,  +0.000025 s, × 1.1225
pypy            x_revs_x000_added_0_copies            4aa4e1f8e19a 359343b9ac0e :  0.000058 s,  0.000056 s,  -0.000002 s, × 0.9655
pypy            x_revs_x_added_x_copies              ac52eb7bbbb0 72e022663155 :  0.000112 s,  0.000143 s,  +0.000031 s, × 1.2768
pypy            x_revs_x00_added_x_copies            c3b14617fbd7 ace7255d9a26 :  0.000339 s,  0.001166 s,  +0.000827 s, × 3.4395
pypy            x_revs_x000_added_x000_copies        df6f7a526b60 a83dc6a2d56f :  0.010214 s,  0.022931 s,  +0.012717 s, × 2.2451
pypy            x000_revs_xx00_added_0_copies        89a76aede314 2f22446ff07e :  0.047497 s,  0.852446 s,  +0.804949 s, × 17.9474
pypy            x000_revs_x000_added_x_copies        8a3b5bfd266e 2c68e87c3efe :  0.075297 s,  2.221824 s,  +2.146527 s, × 29.5075
pypy            x000_revs_x000_added_x000_copies      89a76aede314 7b3dda341c84 :  0.057322 s,  1.194162 s,  +1.136840 s, × 20.8325
pypy            x0000_revs_x_added_0_copies          d1defd0dc478 c9cb1334cc78 :  0.796264 s,  62.468362 s, +61.672098 s, × 78.4518
pypy            x0000_revs_xx000_added_0_copies      bf2c629d0071 4ffed77c095c :  0.020491 s,  0.022116 s,  +0.001625 s, × 1.0793
pypy            x0000_revs_xx000_added_x000_copies    08ea3258278e d9fa043f30c0 :  0.121612 s,  2.972788 s,  +2.851176 s, × 24.4449
netbeans        x_revs_x_added_0_copies              fb0955ffcbcd a01e9239f9e7 :  0.000143 s,  0.000180 s,  +0.000037 s, × 1.2587
netbeans        x_revs_x000_added_0_copies            6f360122949f 20eb231cc7d0 :  0.000112 s,  0.000123 s,  +0.000011 s, × 1.0982
netbeans        x_revs_x_added_x_copies              1ada3faf6fb6 5a39d12eecf4 :  0.000232 s,  0.000315 s,  +0.000083 s, × 1.3578
netbeans        x_revs_x00_added_x_copies            35be93ba1e2c 9eec5e90c05f :  0.000721 s,  0.001297 s,  +0.000576 s, × 1.7989
netbeans        x000_revs_xx00_added_0_copies        eac3045b4fdd 51d4ae7f1290 :  0.010115 s,  0.024884 s,  +0.014769 s, × 2.4601
netbeans        x000_revs_x000_added_x_copies        e2063d266acd 6081d72689dc :  0.015461 s,  0.032653 s,  +0.017192 s, × 2.1120
netbeans        x000_revs_x000_added_x000_copies      ff453e9fee32 411350406ec2 :  0.060756 s,  4.230118 s,  +4.169362 s, × 69.6247
netbeans        x0000_revs_xx000_added_x000_copies    588c2d1ced70 1aad62e59ddd :  0.605842 s, killed
mozilla-central x_revs_x_added_0_copies              3697f962bb7b 7015fcdd43a2 :  0.000164 s,  0.000197 s,  +0.000033 s, × 1.2012
mozilla-central x_revs_x000_added_0_copies            dd390860c6c9 40d0c5bed75d :  0.000331 s,  0.000622 s,  +0.000291 s, × 1.8792
mozilla-central x_revs_x_added_x_copies              8d198483ae3b 14207ffc2b2f :  0.000249 s,  0.000296 s,  +0.000047 s, × 1.1888
mozilla-central x_revs_x00_added_x_copies            98cbc58cc6bc 446a150332c3 :  0.000711 s,  0.001626 s,  +0.000915 s, × 2.2869
mozilla-central x_revs_x000_added_x000_copies        3c684b4b8f68 0a5e72d1b479 :  0.003438 s,  0.006218 s,  +0.002780 s, × 1.8086
mozilla-central x_revs_x0000_added_x0000_copies      effb563bb7e5 c07a39dc4e80 :  0.069869 s,  0.132760 s,  +0.062891 s, × 1.9001
mozilla-central x000_revs_xx00_added_0_copies        6100d773079a 04a55431795e :  0.005701 s,  0.029001 s,  +0.023300 s, × 5.0870
mozilla-central x000_revs_x000_added_x_copies        9f17a6fc04f9 2d37b966abed :  0.005757 s,  0.005886 s,  +0.000129 s, × 1.0224
mozilla-central x000_revs_x000_added_x000_copies      7c97034feb78 4407bd0c6330 :  0.061826 s,  3.619850 s,  +3.558024 s, × 58.5490
mozilla-central x0000_revs_xx000_added_0_copies      9eec5917337d 67118cc6dcad :  0.043354 s,  0.058678 s,  +0.015324 s, × 1.3535
mozilla-central x0000_revs_xx000_added_x000_copies    f78c615a656c 96a38b690156 :  0.198979 s,  11.926587 s, +11.727608 s, × 59.9389
mozilla-central x00000_revs_x0000_added_x0000_copies  6832ae71433c 4c222a1d9a00 :  2.067096 s, killed
mozilla-central x00000_revs_x00000_added_x000_copies  76caed42cf7c 1daa622bbe42 :  3.102616 s, killed
mozilla-try    x_revs_x_added_0_copies              aaf6dde0deb8 9790f499805a :  0.001212 s,  0.001204 s,  -0.000008 s, × 0.9934
mozilla-try    x_revs_x000_added_0_copies            d8d0222927b4 5bb8ce8c7450 :  0.001237 s,  0.001217 s,  -0.000020 s, × 0.9838
mozilla-try    x_revs_x_added_x_copies              092fcca11bdb 936255a0384a :  0.000557 s,  0.000605 s,  +0.000048 s, × 1.0862
mozilla-try    x_revs_x00_added_x_copies            b53d2fadbdb5 017afae788ec :  0.001532 s,  0.001876 s,  +0.000344 s, × 1.2245
mozilla-try    x_revs_x000_added_x000_copies        20408ad61ce5 6f0ee96e21ad :  0.035166 s,  0.078190 s,  +0.043024 s, × 2.2235
mozilla-try    x_revs_x0000_added_x0000_copies      effb563bb7e5 c07a39dc4e80 :  0.070336 s,  0.135428 s,  +0.065092 s, × 1.9254
mozilla-try    x000_revs_xx00_added_0_copies        6100d773079a 04a55431795e :  0.006080 s,  0.029123 s,  +0.023043 s, × 4.7900
mozilla-try    x000_revs_x000_added_x_copies        9f17a6fc04f9 2d37b966abed :  0.006099 s,  0.006141 s,  +0.000042 s, × 1.0069
mozilla-try    x000_revs_x000_added_x000_copies      1346fd0130e4 4c65cbdabc1f :  0.064317 s,  4.857827 s,  +4.793510 s, × 75.5294
mozilla-try    x0000_revs_x_added_0_copies          63519bfd42ee a36a2a865d92 :  0.303263 s,  10.674920 s, +10.371657 s, × 35.2002
mozilla-try    x0000_revs_x_added_x_copies          9fe69ff0762d bcabf2a78927 :  0.292804 s,  9.789462 s,  +9.496658 s, × 33.4335
mozilla-try    x0000_revs_xx000_added_x_copies      156f6e2674f2 4d0f2c178e66 :  0.107594 s,  1.087890 s,  +0.980296 s, × 10.1111
mozilla-try    x0000_revs_xx000_added_0_copies      9eec5917337d 67118cc6dcad :  0.045202 s,  0.060556 s,  +0.015354 s, × 1.3397
mozilla-try    x0000_revs_xx000_added_x000_copies    89294cd501d9 7ccb2fc7ccb5 :  1.926277 s, killed
mozilla-try    x0000_revs_x0000_added_x0000_copies  e928c65095ed e951f4ad123a :  0.794492 s, killed
mozilla-try    x00000_revs_x_added_0_copies          6a320851d377 1ebb79acd503 :  84.521497 s, killed
mozilla-try    x00000_revs_x00000_added_0_copies    dc8a3ca7010e d16fde900c9c :  0.965937 s,  19.647038 s, +18.681101 s, × 20.3399
mozilla-try    x00000_revs_x_added_x_copies          5173c4b6f97c 95d83ee7242d :  83.367146 s, killed
mozilla-try    x00000_revs_x000_added_x_copies      9126823d0e9c ca82787bb23c :  84.260895 s, killed
mozilla-try    x00000_revs_x0000_added_x0000_copies  8d3fafa80d4b eb884023b810 :  3.274537 s, killed
mozilla-try    x00000_revs_x00000_added_x0000_copies 1b661134e2ca 1ae03d022d6d :  42.235843 s, killed
mozilla-try    x00000_revs_x00000_added_x000_copies  9b2a99adc05e 8e29777b48e6 :  49.872829 s, killed

Differential Revision: https://phab.mercurial-scm.org/D9299
d010adc483cc...
d010adc483cc450fd40318a2a38ff4d0438fcd53
Sushil khanchi
help: fix a grammar/typo in hg help dates

Differential Revision: https://phab.mercurial-scm.org/D9442
40f79997e81f...
40f79997e81f681611fce4fb379055e764c8a826
Pierre-Yves David
rust: fix non-utf8 char in requirements.rs

Apparently Phabricator detect `rust/hg-core/src/requirements.rs` file as non
utf8 ‽, and mark it as binary.  During application it ended up being non-utf8
and this made Rust (and as a result heptapod) very angry::

    error: couldn't read hg-core/src/requirements.rs: stream did not contain valid UTF-8
      --> hg-core/src/lib.rs:11:9
      |
    11 | pub mod requirements;
      |        ^^^^^^^^^^^^

    error: aborting due to previous error

    error: could not compile `hg-core`.

The after "fixing", the file content has no character matching the following
regexp:

  [^0-9-a-zA-Z /(|).,{}!\[\]:"&=>?_*-;<`'#]

So we should be fine, unless Phabricator does something funny again.

Differential Revision: https://phab.mercurial-scm.org/D9444
064449f9fdc2...
064449f9fdc2900079ffa40131f2e7951acf7ffd
Matt Harbison
run-tests: use a context manager when looking for available ports

Differential Revision: https://phab.mercurial-scm.org/D9441
Differential Revision: https://phab.mercurial-scm.org/D9452
3a3a510617e5...
3a3a510617e573d3ee8d9eee3c5189a551f5b8c4
Pierre-Yves David
heptapod-ci: add a explicite "test" phases

We are about to add more stage

Differential Revision: https://phab.mercurial-scm.org/D9454
456c617c8285...
456c617c82851e947ac99c5e06c30656bbf421e1
Pierre-Yves David
test: fix some expect output in a traceback

The lines moved around because of 89a2afe31e82.

Differential Revision: https://phab.mercurial-scm.org/D9447
f4304891195c...
f4304891195ca75042c0c3bbc8ba947854d7dd6c
Pierre-Yves David
rust: fix non-utf8 char in requirements.rs

Apparently Phabricator detect `rust/hg-core/src/requirements.rs` file as non
utf8 ‽, and mark it as binary.  During application it ended up being non-utf8
and this made Rust (and as a result heptapod) very angry::

    error: couldn't read hg-core/src/requirements.rs: stream did not contain valid UTF-8
      --> hg-core/src/lib.rs:11:9
      |
    11 | pub mod requirements;
      |        ^^^^^^^^^^^^

    error: aborting due to previous error

    error: could not compile `hg-core`.

The after "fixing", the file content has no character matching the following
regexp:

  [^0-9-a-zA-Z /(|).,{}!\[\]:"&=>?_*-;<`'#]

So we should be fine, unless Phabricator does something funny again.

Differential Revision: https://phab.mercurial-scm.org/D9444
e1404a75cddd...
e1404a75cddd453d1c75c80087ae2d054f8c9265
Matt Harbison
run-tests: use a context manager when looking for available ports

Differential Revision: https://phab.mercurial-scm.org/D9441
a120d1c9c704...
a120d1c9c70445ab2eba9f6c40415ffcb12b3560
Matt Harbison
dispatch: print the version of each extension in the bug report, if available

Sometimes the wrong extensions is blamed, so we might as well print the version
info for all of them.  Additionally, since the internal extensions are never
blamed, this is a good way to make the pygit2 version available in a bug report.

Differential Revision: https://phab.mercurial-scm.org/D9440
a001e28ad5eb...
a001e28ad5eb4ffb52a61f2371f64445cc918b5d
Matt Harbison
git: add the standard `testedwith` attribute

Otherwise this shows up as an external extension.

Differential Revision: https://phab.mercurial-scm.org/D9435
d896c958e428...
d896c958e42800c16050e4b388abc90ca9649574
Matt Harbison
dispatch: sort the loaded extension names in the bug report

This makes a long list of extensions easier to read.  On very rare occasion I've
seen issues where the load order mattered, however that info should still be
obtainable with `hg config extensions`.

Differential Revision: https://phab.mercurial-scm.org/D9439
a9797b49fb69...
a9797b49fb69edb344343e132ea9e5715b4c2081
Matt Harbison
hghave: adjust the detection of `pylint` for modern versions

I have pylint 2.6.0 installed locally, and it only has a single space.  I have
no idea when this changed.

Differential Revision: https://phab.mercurial-scm.org/D9431
50c5ee3bdf9a...
50c5ee3bdf9a297c7776ae714bd44547530dbf5d
Pierre-Yves David
copies: introduce the hg-cpython wrapper for `combine_changeset_copies`

This patch focus on the `hg-cpython` part of this work. Bridging the python code
with the new rust code in `hg-core`. The next patch will actually plug this in
the python code.

The rust code use multiple Python callback, python related error within this
callback are not expected unless they are a programming error or a data
corruption. In addition, these callback will slowly be replaced by native Rust
code. For these reasons, we use will deal with unexpected error within this
callback using rust Panic and let the `rust-cpython` layer deal with raising a
Python exception.

The code dealing with the ChangedFile instance is repeating itself a lot. I did
not factor these duplication out because that whole code will get replaced by
entirely different one in a handful of changesets.

Differential Revision: https://phab.mercurial-scm.org/D9298
250e18437e30...
250e18437e30820f449a2cc807b6909e309fbd4c
Matt Harbison
tests: add a comment that we're purposely testing py2 extension attributes

Avoid someone unknowingly removing test coverage.  There are tests for a
properly byteified `testedwith` a few lines down.  I don't see similar for
`buglink`, but it's a trivial conversion to bytes, so I'm not concerned about
testing the expected/wanted extension state.

Differential Revision: https://phab.mercurial-scm.org/D9434
a2104b9b1787...
a2104b9b17877992e810ad43f522a8f0fcaa3997
Matt Harbison
dispatch: quote the extension when printing the bug report

I think this reads better in the wall of text.

Differential Revision: https://phab.mercurial-scm.org/D9438
3db545fccac1...
3db545fccac1382261e2b9d7b6b2cec8fb9b047e
Matt Harbison
extensions: avoid a crash when the version isn't properly byteified on py3

We already force bytestr on the `testedwith` and `buglink` attributes in
dispatch.py when generating a bug report with a similar comment about not
every extension being ported to py3.  We should do the same here, so the
function can be properly typed.

Differential Revision: https://phab.mercurial-scm.org/D9433
595979dc924e...
595979dc924e3349418593379b8e70a09d4f1ef1
Pierre-Yves David
copies: introduce a basic Rust function for `combine_changeset_copies`

This new function mirror the python code.  This first implementation does a lot
of data copies and is therefore quite slow. However my goal here is to create a
simple "frame" from where to start adding optimization.

This patch focus on the `hg-core` part of this work. Coming patches will do the
necessary `hg-cpython` work  to be able to use this from Python.

Differential Revision: https://phab.mercurial-scm.org/D9297
464539c305aa...
464539c305aac7aaf9501d825ab1643076b623d3
Matt Harbison
formatting: drop a few extra double quotes in docstrings

These were made obvious by the reformatting in D9430.

Differential Revision: https://phab.mercurial-scm.org/D9432
c7c1efdfd4de...
c7c1efdfd4dec044df57dd7f477e47165b576927
Matt Harbison
git: show the version of `pygit2` with verbose version output

This seems like useful info to have when debugging.  I followed the precedent of
hg-git, which prints something like:

      hggit        external  0.9.0a1 (dulwich 0.19.15)

We don't have a version number assigned (because it's internal), so it's just
the parenthetical.

Differential Revision: https://phab.mercurial-scm.org/D9436
c26cb33e5219...
c26cb33e5219c1e402922ac5214061c53191dd5d
Matt Harbison
dispatch: print the version of the extension being blamed in a bug report

I don't know of a lot of extensions using this, but it seems like useful info in
a bug report.

Differential Revision: https://phab.mercurial-scm.org/D9437
89a2afe31e82...
89a2afe31e82710e13600271c75e3ce23bc1b5a9
Augie Fackler
formating: upgrade to black 20.8b1

This required a couple of small tweaks to un-confuse black, but now it
works. Big formatting changes come from:

* Dramatically improved collection-splitting logic upstream
* Black having a strong (correct IMO) opinion that """ is better than '''

Differential Revision: https://phab.mercurial-scm.org/D9430
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