Summary:
Some code paths (ex. metalog.commit) use `util.timer()` as a way to get
seconds since epoch, and get 0 for tests. Other use-cases of `util.timer()`
are ad-hoc time measure for displaying speed / progress. They do not need high
precision or strong guarantee that the clock does not go backwards. Drop the
`time.perf_counter()` to meet the first use-case's expectation.
Reviewed By: singhsrb
Differential Revision: D23431253
fbshipit-source-id: 8bf2d1ed32e284e17285742e1d0fd7178f181fb3
Summary:
With segments backend, the revision numbers will be longer than commit hashes
and are confusing.
Reviewed By: DurhamG
Differential Revision: D23408971
fbshipit-source-id: e2057fa644fc7b6be4291f879eee3235bb4e687b
Summary:
Pulling from older repos (ex. years ago) could require GBs of commit text data.
Flush commit data if they exceed certain size.
This is for revlog compatibility.
In the future we probably just make commit text lazy to avoid this kind of issues.
Reviewed By: DurhamG
Differential Revision: D23408834
fbshipit-source-id: 273384f5a05be07877bb1c9871c17b53ba436233
Summary: This would be used to avoid excessive memory usage during pull.
Reviewed By: DurhamG
Differential Revision: D23408833
fbshipit-source-id: 8edd95ab8201697074f65cc118d14755a230567d
Summary:
`addcommits` is designed to be more efficiently if called with a batch of
commits. So let's buffer the commits to add then only call it once.
This avoids some N^2 behaviors, for example, the NameDag internally will
prepare "snapshot" of itself which involves coping the pending Rust vecs
about the segments and id <-> hash map.
The change makes `pull` usable from unusably slow:
Original Python Revlog backend:
```
In [1]: %trace repo.pull(bookmarknames=['master'],quiet=False)
5191 +466 | Apply Changegroup edenscm.mercurial.bundle2 line 516
| - Commits = 125 :
| - Range = a1d1b3ade136:2e3fe78af189 :
5191 +466 | changegroup.cg1unpacker.apply edenscm.mercurial.changegroup line 313
5192 +416 | Progress Bar: commits (progressbar)
5192 +415 | changelog.changelog.addgroup edenscm.mercurial.changelog line 536
5192 +409 | revlog.revlog.addgroup edenscm.mercurial.revlog line 2116
5215 +371 | changelog.changelog._addrevision (125 times) edenscm.mercurial.changelog line 558
```
DoubleWrite (Segments + Revlog) backend, Before:
```
In [2]: %trace repo.pull(bookmarknames=['master'],quiet=False)
2396 +154059 | Apply Changegroup edenscm.mercurial.bundle2 line 516
| - Commits = 323 :
| - Range = cb0b100180ba:5fb57c74f72e :
2396 +154059 | changegroup.cg1unpacker.apply edenscm.mercurial.changegroup line 313
2397 +151433 \ Progress Bar: commits (progressbar)
2397 +151433 | changelog2.changelog.addgroup edenscm.mercurial.changelog2 line 334
```
DoubleWrite (Segments + Revlog) backend, After:
```
In [2]: %trace repo.pull(bookmarknames=['master'],quiet=False)
4629 +512 | Apply Changegroup edenscm.mercurial.bundle2 line 516
| - Commits = 45 :
| - Range = cf23c6972934:1ff0c5f0e7ad :
4629 +512 | changegroup.cg1unpacker.apply edenscm.mercurial.changegroup line 313
4630 +494 | changelog2.changelog.addgroup edenscm.mercurial.changelog2 line 334
```
Reviewed By: DurhamG
Differential Revision: D23390435
fbshipit-source-id: dd97a5008dedd844d4134b87bfef190fa739a80b
Summary:
The users of addrevisoncb are gone.
This also removes the "alwayscache" parameter of "_addrevision".
Reviewed By: DurhamG
Differential Revision: D23390437
fbshipit-source-id: 7edd9dd0b93d4cb9d4f35d088a1aef719b450ec1
Summary: It is about legacy revlog formats that are no longer relevant.
Reviewed By: DurhamG
Differential Revision: D23390436
fbshipit-source-id: 58c2c432804181bcc6517d6c988777b843fc9ba4
Summary:
We have a few safeguards against creating full checkouts. However we have
sparse profiles that are not full, but that include very large directories
which normally should not be included.
This diff adds a logic that checks if a new sparse profile has any of the "marker"
files i.e. some files from a folder that should not be included. Operation
aborts if that the case, however there's always a way to workaround that.
Reviewed By: DurhamG
Differential Revision: D23414200
fbshipit-source-id: 626f392319eb1be8b35f39cadafb61f3c1dfefe3
Summary:
"hg diff" has --sparse option which diffs only files inside a sparse checkout.
The problem is that it doesn't work on eden checkouts because eden repo doesn't
have sparsematch() function.
This diff makes it so that if sparsematch() function doesn't exist then
--sparse option is just ignored.
The motivation for this change is
https://fb.workplace.com/groups/corehg/?post_id=687768245151742. There are some
diff calls that are triggered by arc lint that race with "hg update" and might download
loads of data on people's laptops. This diff doesn't fix the race, but it:
1) Makes sure we don't download too much data that are not in sparse profiles.
2) arc lint doesn't care about files outside of sparse profiles anyway, so
running --sparse make sense.
Reviewed By: DurhamG
Differential Revision: D23396918
fbshipit-source-id: 2a386fdbeab85187e2c2acab69cb86b74124d46f
Summary:
This is practically just 0 in our production setup during `pull`s. In the
future when the commit data become lazy, it's no longer possible to read the
files locally. So let's just don't scan the commits.
Reviewed By: DurhamG
Differential Revision: D23390438
fbshipit-source-id: 4c54c4aac5fd840205296ab86955ec1b8ab76607
Summary:
Mergedrivers can call dirstate.add directly and are adding paths with
"." and "..". Let's block those paths.
Reviewed By: quark-zju
Differential Revision: D23375469
fbshipit-source-id: 64e9f20169cfd50325ecd8ebcc1dd3be7a5cb202
Summary:
extdiff uses shutil.rmtree which calls os.rmdir with new python 3
options. Since we pathc os.rmdir, we need to support those options.
Reviewed By: quark-zju
Differential Revision: D23350968
fbshipit-source-id: 081d179dcd67b51ffdeb6b85899adf4e574a8d0f
Summary: Similar to D18528858 so module names do not need to be spelled twice.
Reviewed By: markbt
Differential Revision: D23091380
fbshipit-source-id: a2a261abc9c78c8805cea62b38498ba65398796d
Summary: This crate would fail to build without the "fb" feature because `serde_json` was listed as an optional dependency (but is used in a way that isn't conditional on the `fb` feature). This diff makes the dependency non-optional, and also silences several dead code warnings that are emitted when building without the "fb" feature.
Reviewed By: quark-zju
Differential Revision: D23386786
fbshipit-source-id: b00a8b0b8b0b978c1cfab2838629fcb388a076e9
Summary:
The `debugfsync` command calls fsync on newly modified files in svfs.
Right now it only includes locations that we know have constant number
of files.
The fsync logic is put in a separate crate to avoid slow compiles.
Reviewed By: DurhamG
Differential Revision: D23124169
fbshipit-source-id: 438296002eed14db599d6ec225183bf824096940
Summary:
A warning means that every tree fetched will be printed in the edenfs log,
which is way too much. Let's decrease this to a debug message.
Reviewed By: genevievehelsel
Differential Revision: D23385778
fbshipit-source-id: d77f1cac3efb945d4b95750822f2f12f48c75ffe
Summary: `len(repo)` can no longer predicate the next rev number. Use nodes instead.
Reviewed By: DurhamG
Differential Revision: D23307791
fbshipit-source-id: cc20e53f039eee2a714748352e8e98aab253095a
Summary:
Some functions might be called very frequently. For example,
`phases.phasecache.loadphaserevs` might be called 100k+ times.
That makes the tracing data harder to process.
Limit the count of spans to 1k by default so the data is cheaper to process,
and some highly repetitive cases can now be reasoned about. Note the limit
is only put on static Span Ids. If a span uses dynamic metadata or ask for
different Span Ids each time, they will not be limited.
In debugshell,
td = %trace repo.revs('smartlog()')
len(td.serialize())
dropped from 6MB to 0.87MB.
It's also possible to reason about:
td = %trace len(repo.revs('ancestors(.)'))
in debugshell (taking 30s, 98KB serialized, vs 21s without tracing), while
previously the result would be too large to show (`%trace` just hangs).
Reviewed By: DurhamG
Differential Revision: D23307793
fbshipit-source-id: 3c1e9885ce7a275c2abd8935a4e4539a4f14ce83
Summary: Set a default limit so the output won't be too long.
Reviewed By: DurhamG
Differential Revision: D23307792
fbshipit-source-id: 7e2ed99e96bbde06436a034e78f899fc2e3e03f8
Summary:
The debugshell command can be long running and contains uninteresting stuff.
Do not profile it.
Practically this hides showing the background statprof thread when using `%trace`.
Reviewed By: DurhamG
Differential Revision: D23278597
fbshipit-source-id: bad97de22e1be2be8b866bee705ea3a6755aa54b
Summary:
This allows entering ipdb for code like: `ipdb` or `ipdb()`. It can be handy to
debug something.
Reviewed By: DurhamG
Differential Revision: D23278599
fbshipit-source-id: 4355dd1944617aeb795450935789f01f66f094eb
Summary: This makes it possible to get tracing results, or run hg commands directly.
Reviewed By: DurhamG
Differential Revision: D23278601
fbshipit-source-id: e7dc92080d2881cb4155a481df5ca93f324828fc
Summary:
The `--trace` flag enables tracing Python modules.
For compatibility reasons, it also enables `--traceback`.
It can be used with debugshell to make `%trace` more useful.
Reviewed By: sfilipco
Differential Revision: D23278600
fbshipit-source-id: d6d0b34bd5c48111f8cd33d7df115f349b0e95b6
Summary:
I found this when I aborted an rebase Dxxx and trying rebasing again and it
complained about "nothing to rebase". It was caused by Dxxx resolving into
a hidden commit.
Reviewed By: sfilipco
Differential Revision: D23307794
fbshipit-source-id: f7a956b5300240089b6a4648f28cf4a152ee2433
Summary:
We shouldn't delete from a dictionary while iterating over it, instead we should iterate over a copy and then delete from the original.
`.items()` returns a view of the dict, while wrapping it in `list` makes a deep copy.
Reviewed By: DurhamG
Differential Revision: D23283668
fbshipit-source-id: a168eef1ed2a1ce02fe71b3f6e3aed090965d2a4
Summary:
Mononoke throws an error if we request the nullid. In the long term we
want to get rid of the concept of the nullid entirely, so let's just add some
Python level blocks to prevent us from attempting to fetch it. This way we can
start to limit how much Rust has to know about these concepts.
Reviewed By: sfilipco
Differential Revision: D23332359
fbshipit-source-id: 8a67703ba1197ead00d4984411f7ae0325612605
Summary:
Corp has a different concept of tier than prod. Let's load the corp
tier into our tier set as well.
Reviewed By: quark-zju
Differential Revision: D23354056
fbshipit-source-id: c9543b8253f042c7b1224578e0687b4bdf21738e
Summary:
The Python 3 email library internally stores the message as text, even
though our input and requested output is bytes. Let's make our own wrapper
around the parser to use ascii surrogateescape encoding so we can get the
actual bytes out later and not get universal newlines.
Based off the upstream 7b12a2d2eedc995405187cdf9a35736a14d60706,
which is basically a copy of the BytesParser implementation (https://github.com/python/cpython/blob/3.8/Lib/email/parser.py) with
newline=chr(10) added.
Reviewed By: quark-zju
Differential Revision: D23363965
fbshipit-source-id: 880f0642cce96edfdd22da5908c0b573887bed12
Summary:
`hg cloud rejoin` command is used in fbclone and it is supposed to print a
message on RegistrationError but this has been broken recently.
Reviewed By: markbt
Differential Revision: D23342773
fbshipit-source-id: 4f3318848953656dea65a2b5d4d832694f6b353c
Summary:
There are users who prefer run `hg cloud leave` if they notice they are
connected to commit cloud sync.
Proving more information and add a prompt might help them to change their mind.
For some users who left new fbclone will connect them back. So on next leave they can learn more information about Commit Cloud Workspaces.
Reviewed By: markbt
Differential Revision: D23346091
fbshipit-source-id: 72f170f7133cd64b772ec75ae29a85dc8809e351
Summary:
When updating to the null commit, the logic that computes the update
distance was broken. The null commit is pre-resolved to -1, which when passed to
a revset raw gets resolved as the tip commit. In large repositories this can
take a long time and use a lot of memory, since it's computing the difference
between tip and null.
Let's fix it to not pass the raw rev number, and also to handle the case of a 0
distance update.
Reviewed By: quark-zju
Differential Revision: D23358402
fbshipit-source-id: 3b0a1fe1bbcb07effba4d0ab2c092e66bdc02e67
Summary:
Pull Request resolved: https://github.com/facebookexperimental/eden/pull/46
See https://github.com/facebookexperimental/eden/runs/1034006668:
error: unused import: `env::set_var`
--> src/lfs.rs:1539:15
|
1539 | use std::{env::set_var, str::FromStr};
| ^^^^^^^^^^^^
|
note: the lint level is defined here
--> src/lib.rs:125:9
|
125 | #![deny(warnings)]
| ^^^^^^^^
= note: `#[deny(unused_imports)]` implied by `#[deny(warnings)]`
error: unnecessary braces around method argument
--> src/lfs.rs:2439:36
|
2439 | remote.batch_upload(&objs, { move |sha256| local_lfs.blobs.get(&sha256) })?;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
|
note: the lint level is defined here
--> src/lib.rs:125:9
|
125 | #![deny(warnings)]
| ^^^^^^^^
= note: `#[deny(unused_braces)]` implied by `#[deny(warnings)]`
error: aborting due to 2 previous errors
error: could not compile `revisionstore`.
I dropped `#![deny(warnings)]` as I don't think warnings like the above ones
should break the build. (denying specific warnings that we care about explicitly
might be a better approach)
Reviewed By: singhsrb
Differential Revision: D23362178
fbshipit-source-id: 02258f57727edfac9818cd29dda5e451c7ca80a7
Summary: Now that it is possible to control which features are enabled on manually-managed dependencies, we can reenable autocargo for `edenapi`. See D23216925, D23327844, and D23329351 (840e6dd6f6) for context.
Reviewed By: dtolnay
Differential Revision: D23335122
fbshipit-source-id: 8ce250c3a106d2a02f457f7ed531623dd866232f
Summary: The command does not crash but `-` lines are ignored.
Reviewed By: DurhamG
Differential Revision: D23357655
fbshipit-source-id: f48568bc193f947503bc19f3e192b33346c317e1
Summary:
Pull Request resolved: https://github.com/facebookexperimental/eden/pull/45
Fix referring to 'version' without proper codegen by making 'version' compile
without codegen. This fixes configparser test when version/src/lib.rs was not
generated.
Make unneeded deps without 'fb' feature optional.
This would hopefully fix the "EdenSCM Rust Libraries" GitHub workflow.
Reviewed By: DurhamG
Differential Revision: D23269864
fbshipit-source-id: f9e691fe0a75159c4530177b8a96dad47d2494a9
Summary: This makes the code simpler.
Reviewed By: sfilipco
Differential Revision: D23269858
fbshipit-source-id: bb9ac0bd1696f7429ca1856e6c63e04fabc2757a
Summary: This makes the code simpler.
Reviewed By: sfilipco
Differential Revision: D23269866
fbshipit-source-id: 30c9e9d218378c0d6df8b822b2a81df2b38f5b01
Summary: Will be used to simplify code.
Reviewed By: sfilipco
Differential Revision: D23269859
fbshipit-source-id: bed0c4dca075ff60900025642af1d84bdd03452d
Summary:
`impl<T> Trait for T` in the current Rust makes it impossible to have
`impl<Q> Trait for Q`. Avoid using it for IdConvert and PrefixLookup.
Reviewed By: sfilipco
Differential Revision: D23269861
fbshipit-source-id: a837f3984ff4e1bd5a3983dd1642b9f064f51a36
Summary:
`impl<T> Trait for T` in the current Rust makes it impossible to have
`impl<Q> Trait for Q`. Avoid using it for DagAlgorithm.
Reviewed By: sfilipco
Differential Revision: D23269860
fbshipit-source-id: 031e75e9bf1f1eec2b9e8f36220ef8b817a143a5
Summary: LowLevelAccess is a subset of NameDagStorage. Use the latter instead.
Reviewed By: sfilipco
Differential Revision: D23269865
fbshipit-source-id: 81ebb1e986d8b02c968a9a237ad9a97d4afd54bf
Summary:
If there are too many heads, the current `descendants` algorithm would visit
all "old" heads. For example, with this graph:
head9999 (N9999)
/
Z (master)
:
: (many heads)
:/
: head2 (N2)
:/
C head1 (N1)
|/
B head0 (N0)
|/
A
`A::head9999` or `Z::head9999` will visit N0, N1, ..., N9999, because
`descendands_up_to` is provided with `max_id = N9999` and Z as a vertex in the
master group, is before N0 in non-master. The current algorithm also means
`descendands_up_to` gets linearly slower as the user uses the repo more, which
is quite undesirable.
This diff changes `descendands_up_to` to take an `ancestors` set, which is
`::head9999` in this case, and iterate non-master flat segments in it. So it
will skip N0 to N9998 directly by finding the N9999 flat segment and only use
it. The number of heads will have a smaller impact on performance.
Another slowness is `draft::draft_heads`, if there are too many `draft_heads`,
the internal calculation of `::draft_heads` can be slow. Optimize it by
limiting `draft_heads` to `draft:`. Practically this affects `y::` revset as
`y::` is translated to `y::visible_heads` and `visible_heads` can be large.
`cargo bench --bench dag_ops -- '::-master'` shows significant difference:
Before:
range (master::draft) 18.112 s
range (recent_draft::drafts) 2.594 s
After:
range (master::draft) 72.542 ms
range (recent_draft::drafts) 14.932 ms
In my fbsource checkout there were 20k+ heads. The improvement of
`master::recent_draft` (`x::y`) is pretty visible, and `y::` is also improved:
% lhg debugbenchmarkrevsets -m -x 'p1(min(7e8c86ae % master))' -Y 'draft() & 7e8c86ae' -e 'x::y' -e 'y::' --no-default
# x: 168f5228e570fb6b2ff7f851bd82413102748d84 (p1(min(7e8c86ae % master)))
# y: 7e8c86aec68ebc6e0b8254afcb381315991fd21c (draft() & 7e8c86ae)
# before
| revset \ backend | segments | revlog | revlog-cpy |
|------------------|----------|--------|------------|
| x::y | 17ms | 0.1ms | 0.5ms |
| y:: | 3.3ms | 0.7ms | 1.3ms |
# after
| revset \ backend | segments | revlog | revlog-cpy |
|------------------|----------|--------|------------|
| x::y | 0.2ms | 0.1ms | 0.6ms |
| y:: | 1.0ms | 0.7ms | 1.3ms |
Reviewed By: sfilipco
Differential Revision: D23214387
fbshipit-source-id: 4d11db84cd28f4e04e8b991cbc650c9d5781fd27
Summary:
Lots of non-master heads is not an exercised graph in the benchmarks.
Add it as it practically happens. This will be used by the next change.
Reviewed By: sfilipco
Differential Revision: D23259879
fbshipit-source-id: 7fe290d14403e42e6d135bde56e2d5c8519ae530
Summary:
Currently the fuzz test only uses the master group. Let it exercise non-master
group too.
Reviewed By: DurhamG
Differential Revision: D23214388
fbshipit-source-id: 7108a1055fbdda2b012f93c5948fb83ef3b9a96f
