- Jun 17, 2019
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Martin von Zweigbergk authored
This also means that we get the standard error messages (see changed test cases). Differential Revision: https://phab.mercurial-scm.org/D6535
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Martin von Zweigbergk authored
It was only used by mq, and mq now has its own copy of the function. Differential Revision: https://phab.mercurial-scm.org/D6534
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Martin von Zweigbergk authored
Some of the functionality in strip.checklocalchanges() was only used by mq, so let's move it to mq so we can clean up strip. Differential Revision: https://phab.mercurial-scm.org/D6533
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- May 03, 2019
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Martin von Zweigbergk authored
When storing copy information in the changesets (experimental.copies.read-from=changeset-only), this patch speeds up hg debugpathcopies FENNEC_58_0_2_BUILD1 FIREFOX_59_0b8_BUILD2 from 5.9s to 4.7s. At the start of this series (b162229ebe0d), that command took 18min. Differential Revision: https://phab.mercurial-scm.org/D6422
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- Apr 19, 2019
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Martin von Zweigbergk authored
When storing copy information in the changesets, this patch speeds up hg debugpathcopies FENNEC_58_0_2_BUILD1 FIREFOX_59_0b8_BUILD2 from 11s to 5.9s. That command takes 6.2s when storing copy information in filelogs. Differential Revision: https://phab.mercurial-scm.org/D6421
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Martin von Zweigbergk authored
If file X is copied to Y on one side of merge and the other side creates Y (no copy), we would not mark that as copy. In the changeset-centric pathcopies() version, that was done by checking if the copy target existed on the other branch. Even though merge commits are pretty uncommon, it still turned out to be too expensive to load the manifest of the parents of merge commits. In a repo of mozilla-unified converted to storing copies in changesets, about 2m30s of `hg debugpathcopies FIREFOX_BETA_59_END FIREFOX_BETA_60_BASE` is spent on this check of merge commits. I tried to think of a way of storing more information in the changesets in order to cheaply detect these cases, but I couldn't think of a solution. So this patch simply removes those checks. For reference, these extra copies are reported from the aforementioned command after this patch: browser/base/content/sanitize.js -> browser/modules/Sanitizer.jsm testing/mozbase/mozprocess/tests/process_normal_finish_python.ini -> testing/mozbase/mozprocess/tests/process_normal_finish.ini testing/mozbase/mozprocess/tests/process_waittimeout_python.ini -> testing/mozbase/mozprocess/tests/process_waittimeout.ini testing/mozbase/mozprocess/tests/process_waittimeout_10s_python.ini -> testing/mozbase/mozprocess/tests/process_waittimeout_10s.ini Since these copies were created on one side of some merge, it still seems reasonable to include them, so I'm not even sure it's worse than filelog pathcopies(), just different. Differential Revision: https://phab.mercurial-scm.org/D6420
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- Apr 18, 2019
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Martin von Zweigbergk authored
As mentioned earlier, pathcopies() is very slow when copies are stored in the changeset. Most of the cost comes from calling _chain() for every changeset, which is slow because it needs to read manifests. It needs to read manifests to be able to filter out copies that are were created in one commit and then deleted. (It also filters out copies that were created from a file that didn't exist in the starting revision, but that's a fixed revision across calls to _chain(), so it's much cheaper.) This patch changes from _chainandfilter() to just _chain() in the main loop in _changesetforwardcopies(). It instead removes copies that have subsequently been removed by using ctx.filesremoved(). We thus rely on that to be fast. It timed this command in mozilla-unified: hg debugpathcopies FIREFOX_59_0b3_BUILD2 FIREFOX_BETA_59_END It took 18s before and 1.1s after. It's still faster when copy information is stored in filelogs: 0.70s. It also still gets slow when there are merge commits involved, because we read manifests there too. We'll deal with that later. Differential Revision: https://phab.mercurial-scm.org/D6419
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- Jun 15, 2019
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Yuya Nishihara authored
As I replied to the Phabricator message, this is wrong. And I even suspect it wouldn't compile because of multiple type mismatches. I think, in Rust where type system is rock solid, we can live with UTF-8 strings except for the bottom storage layer and the top UI/command layer. We'll still have to get around undecodable characters not to be lost, but I think it's okay to drop such filenames from match result if they don't match in UTF-8 world, not in Latin-1 world.
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Yuya Nishihara authored
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Yuya Nishihara authored
cargo 1.34.0 of Debian sid inserts this comment, and I'm tired of reverting the change every time I do make local. https://github.com/rust-lang/cargo/commit/bd0e4a08471b8bc7957829b4fd294b8985d4fa2d
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- Jun 17, 2019
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Augie Fackler authored
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- Jun 16, 2019
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Yuya Nishihara authored
Otherwise the template filter 'cbor' could crash because of bytes subclass: ValueError: do not know how to encode <class 'mercurial.encoding.safelocalstr'>
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- Jun 14, 2019
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Matt Harbison authored
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- Oct 04, 2018
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Matt Harbison authored
It's a waste to cache lfs blobs when cat'ing the raw data at best, but a hassle debugging when the blob is missing. I'm not sure if there are other commands that have '{data}' for output, and if there's a general way to prefetch on that keyword. It's interesting that the verbose output seems to leak into the JSON output, but that seems like an existing bug.
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- Jun 12, 2019
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Augie Fackler authored
Differential Revision: https://phab.mercurial-scm.org/D6526
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Augie Fackler authored
I'm about to add support for counters, and want to avoid duplicating this logic. Differential Revision: https://phab.mercurial-scm.org/D6525
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Augie Fackler authored
Differential Revision: https://phab.mercurial-scm.org/D6524
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Augie Fackler authored
This makes things feel a little less mysterious when modules are being imported. Differential Revision: https://phab.mercurial-scm.org/D6523
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- Jun 14, 2019
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Martin von Zweigbergk authored
`hg export` only shows changed files, not all files, but we still prefetched all files in cmdutil.export(). The same is true for the other commands calling cmdutil.exportfile(). That meant that `hg export` with remotefilelog (or lfs, I assume) could take much longer than expected because it would download all the files in the repo. Differential Revision: https://phab.mercurial-scm.org/D6532
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Martin von Zweigbergk authored
I think this has been obsolete since 2cf18f46a1ce (narrow: only walk files within narrowspec also for committed revisions, 2018-09-28). Differential Revision: https://phab.mercurial-scm.org/D6531
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Pulkit Goyal authored
This test was added new recently. The py3 buildbot found that it passes, so let's add it to the list of passing tests. Differential Revision: https://phab.mercurial-scm.org/D6530
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Taapas Agrawal authored
This ensures to abort strip to `hg strip` when we have a merge in progress and allow it only when a `--force` flag is used. Differential Revision: https://phab.mercurial-scm.org/D6529
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- Apr 25, 2019
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Pierre-Yves David authored
In pratice, we very rarely observer compression better than "3x" on manifest deltas. Having a more aggressive estimate significantly helps our pathological use case on a private repository. Here are a comparison of timings using different upper bound. Estimated compression | ø | ×10 | ×5 | ×3 | timing | 14.11 | 2.61 | 1.96 | 1.53 | We also tested the impact of this series on an array of public repositories. This shown no impact in either size nor timing. Full data set below for those interested. Size ---- Regarding size, not significant impact have been noticed on neither public nor private repositories. Here are the number we gathered on public repositories: zlib/upperbound | no | 10x | 5x | 3x mercurial | 5 875 730 | 5 875 730 | 5 875 730 | 5 875 730 pypy | 27 782 913 | 27 782 913 | 27 782 913 | 27 782 913 netbeans | 159 161 207 | 159 161 207 | 159 161 207 | 159 959 879 (+0.5%) mozilla-central | 323 841 642 | 323 841 642 | 323 841 642 | 319 867 519 (-2.5%) mozilla-try | 746 649 123 | 746 649 123 | 746 649 123 | 741 155 568 (-0.7%) private-repo | 1 485 287 294 | 1 485 287 294 | 1 485 287 294 | 1 409 248 382 (-5.1%) zstd/upperbound | no | 10x | 5x | 3x mercurial | 5 895 206 | 5 895 206 | 5 895 206 | 5 895 206 pypy | 28 689 230 | 28 689 230 | 28 689 230 | 28 689 230 netbeans | 157 636 387 | 157 636 387 | 157 636 387 | 159 692 678 (+1.3%) mozilla-central | 317 650 281 | 317 650 281 | 317 650 281 | 319 613 603 (+0.6%) mozilla-try | 737 555 275 | 737 555 275 | 737 555 275 | 738 079 473 (+0.1%) private-repo | 1 352 362 982 | 1 352 362 982 | 1 346 961 880 | 1 361 327 384 (+0.7%) Speed ------ Timing gathered using `hg perfrevlogwrite -m`. Value are in seconds. mercurial zlib | no | 10x | 5x | 3x | total | 65.551783 | 65.388887 | 65.260658 | 65.321199 | max | 0.034544 | 0.034571 | 0.034659 | 0.034521 | 99.99% | 0.034544 | 0.034571 | 0.034659 | 0.034521 | zstd | no | 10x | 5x | 3x | total | 49.118449 | 49.054062 | 48.753588 | 48.740230 | max | 0.009338 | 0.009239 | 0.009202 | 0.009178 | 99.99% | 0.007618 | 0.007639 | 0.007626 | 0.007621 | pypy zlib | no | 10x | 5x | 3x | total | 560.865984 | 558.983817 | 559.083815 | 559.349152 | max | 0.219614 | 0.215922 | 0.218112 | 0.218107 | 99.99% | 0.219614 | 0.215922 | 0.218112 | 0.218107 | zstd | no | 10x | 5x | 3x | total | 349.393280 | 347.395819 | 347.185407 | 345.643985 | max | 0.084143 | 0.083536 | 0.081834 | 0.082178 | 99.99% | 0.039445 | 0.039639 | 0.039612 | 0.039175 | netbeans zlib | no | 10x | 5x | 3x | total | 33103.327727 | 33314.932260 | 33211.745233 | 33345.891778 | max | 2.666852 | 2.672059 | 2.662453 | 2.662936 | 99.99% | 2.058772 | 2.070429 | 2.069569 | 2.064653 | zstd | no | 10x | 5x | 3x | total | 20112.102708 | 20095.879719 | 20083.390300 | 20123.221859 | max | 2.063482 | 2.062851 | 2.065229 | 2.060147 | 99.99% | 1.146647 | 1.143794 | 1.142933 | 1.146529 | mozilla zlib | no | 10x | 5x | 3x | total | 41374.102138 | 41418.816773 | 41381.956370 | 41334.280732 | max | 3.383474 | 3.387400 | 3.405711 | 3.387316 | 99.99% | 1.006755 | 1.005954 | 1.007700 | 1.007373 | zstd | no | 10x | 5x | 3x | total | 24689.691520 | 24643.939662 | 24664.630027 | 24664.512714 | max | 1.460822 | 1.449640 | 1.439747 | 1.465304 | 99.99% | 0.527111 | 0.527377 | 0.527807 | 0.527226 |
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- Jan 21, 2019
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Valentin Gatien-Baron authored
If we have a delta, we check constraints against a lower bound estimate of the resulting compressed delta. We then checks this projected size against the `size(snapshotⁿ) > size(snapshotⁿ⁺¹)` constraint. This allows to exclude potential base candidates before doing any expensive computation. This only apply to the intermediate-snapshot case since this constraint only apply to them. For some pathological cases of a private repository this step provide a further performance boost (timing from `hg perfrevlogwrite`): before: 3.010646 seconds after: 2.609307 seconds
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Valentin Gatien-Baron authored
If we have a delta, we check constraints against a lower bound estimate of the resulting compressed delta. We then checks this projected size against the ½ⁿ size constraints. This allows to exclude potential base candidates before doing any expensive computation. This only apply to the intermediate-snapshot case since this constraint only apply to them. For some pathological cases of a private repository this step provide a further performance boost (timing from `hg perfrevlogwrite`): before: 3.145906 seconds after: 3.010646 seconds
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Valentin Gatien-Baron authored
They are some extra computation that will shortcut the delta compression if the delta seems hopeless, returning None.
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Valentin Gatien-Baron authored
They are some more optimization change that will make use of this in the function. So we retrieve the data earlier.
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- Apr 25, 2019
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Valentin Gatien-Baron authored
Before computing any delta, we get a basic estimation of the delta size we can expect and the resulted compressed value. We then checks this projected size against the `size(snapshotⁿ) > size(snapshotⁿ⁺¹)` constraint. This allows to exclude potential base candidates before doing any expensive computation. This only apply to the intermediate-snapshot case since this constraint only apply to them. For some pathological cases of a private repository this step provide a significant performance boost (timing from `hg perfrevlogwrite`): before: 14.115908 seconds after: 3.145906 seconds
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Valentin Gatien-Baron authored
Before computing any delta, we get a basic estimation of the delta size we can expect and the resulted compressed value. We then checks this projected size against the ½ⁿ size constraints. This allows to exclude potential base candidates before doing any expensive computation. This only apply to the intermediate-snapshot case since this constraint only apply to them. In practice we only perform this new checks for the manifestlog. Manifest log combine two property: it is likely to have delta chain issue and its diffing/compression is fairly predictable. The initial author of this changeset is Valentin Gatien-Baron providing the initial idea and initial testing, Pierre-Yves David later consolidated the code in the right location and run more extensive testing.
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Pierre-Yves David authored
There are various optimization we can do if we can estimate the size of delta before actually spending CPU compressing them. So we add a attributed dedicated to tracking that. We only use it on Manifest because (1) it structure is quite stable across all Mercurial repository so its compression ratio is fairly universal. This is the revlog with most extreme delta (cf the sparse-revlog optimization). This will be put to use in later changesets. Right now the compression upper bound is set to 10. This is a fairly conservative value (observed value is more around 3), but I prefer to be safe while introducing the optimization principles. We can tune the optimization threshold later.
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- Jun 12, 2019
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Pierre-Yves David authored
This reduce the chance of developers being surprised by special cases.
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Pierre-Yves David authored
The help text was copy pasted from the previous option.
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- May 16, 2019
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Georges Racinet authored
This is more flexible in the passing of additional flags, also what setuptools_rust does, giving less uncertainty about non-Linux platforms.
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- Jun 14, 2019
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Georges Racinet authored
MacOSX needs special link flags. Quoting the README of rust-cpython: create a `.cargo/config` with the following content: ``` [target.x86_64-apple-darwin] rustflags = [ "-C", "link-arg=-undefined", "-C", "link-arg=dynamic_lookup", ] ``` This is tested with Python 2.7 (Anaconda install) and Python 3 (Homebrew install)
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Georges Racinet authored
Before this changeset, the shared library objects suffixes were both (rustc output and Python input) hardcoded to '.so', which is wrong for Python3 and non Linux targets.
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- May 27, 2019
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sliquister authored
The problem is that hg merge/update/etc work the following way: 1. figure out what files to update 2. apply the update to disk 3. apply the update to in-memory dirstate 4. write dirstate where step3 looks at the filesystem and assumes it sees the result of step2. If a file is changed between step2 and step3, step3 will record incorrect information in the dirstate. I avoid this by passing the size step3 needs directly from step2, for the common path (not implemented for change/delete conflicts for instance). I didn't fix the same race for the exec bit for now, because it's less likely to be problematic and I had trouble due to the fact that the dirstate stores the permissions differently from the manifest (st_mode vs '' 'l' 'x'), in combination with tests that pretend that symlinks are not supported. However, I moved the lstat from step3 to step2, which should tighten the race window markedly, both for the exec bit and for the mtime. Differential Revision: https://phab.mercurial-scm.org/D6475
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- Jun 12, 2019
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Valentin Gatien-Baron authored
Currently worker supports running functions that return a progress iterator. Generalize it to handle function that return a progress iterator then a return value. It's unused in this commit, but will be used in the next one. Differential Revision: https://phab.mercurial-scm.org/D6515
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- May 19, 2019
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sliquister authored
which can result in bad status output. Concretely, this seems to be easily triggered by having a build system watching the filesystem for changes, and rebuilding files that are both tracked and generated while an update is happening. Differential Revision: https://phab.mercurial-scm.org/D6474
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- May 23, 2019
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Georges Racinet authored
The --rust global option turns on usage (and by default compilation) of the rust-cpython based mercurial.rustext. Similarly to what's previously done for zstd, there is a --no-rust option for the build_ext subcommand in order not to build mercurial.rustext, allowing for an OS distribution to prebuild it. The HGWITHRUSTEXT environment variable is still honored, and has the same effect as before, but now it works mostly by making the --rust global option defaulting to True, with some special cases for the direct-ffi case (see more about that below) Coincidentally, the --rust flag can also be passed from the make commands, like actually all global options, in the PURE variable make local PURE=--rust This feels inappropriate, though, and we should follow up with a proper make variable for that case. Although the direct-ffi bindings aren't directly useful any more, we keep them at this stage because - they provide a short prototyping path for experiments in which a C extension module has to call into a Rust extension. The proper way of doing that would be to use capsules, and it's best to wait for our pull request onto rust-cpython for that: https://github.com/dgrunwald/rust-cpython/pull/169 - Build support for capsules defined in Rust will probably need to reuse some of what's currently in use for direct-ffi.
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- May 30, 2019
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Georges Racinet authored
This commit converts all current Python callers of mercurial.rustext to the new policy.importrust system. After this point, going through policy.importrust or policy.importmod (in some more distant future) is mandatory for callers of Rust code outside of Python tests. We felt it to be appropriate to keep Rust-specific tests run inconditionally if the Rust extensions are present.
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