Commit graph

175 commits

Author SHA1 Message Date
Kane York
a556913079 chore(3p/nix): add glittershark to OWNERS
Change-Id: I71228383c8c7810ff8032e67bde0f45339809934
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1236
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
Reviewed-by: glittershark <grfn@gws.fyi>
2020-07-17 01:24:38 +00:00
Griffin Smith
d1b3514910 feat(3p/nix/nix-daemon): Implement Worker::QueryAllValidPaths handler
Change-Id: If9d2144ae872183abf47d84c94cc5c5fa23ced87
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1229
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
2020-07-16 23:57:49 +00:00
Griffin Smith
ec859afe95 feat(3p/nix/nix-daemon): Implement Worker::QueryMissing handler
Change-Id: I004a0c7969e1fe27b844adfed2d3ba3e6c5279bb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1227
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
2020-07-16 23:25:25 +00:00
Vincent Ambo
5c9af8faee feat(3p/nix): Implement similar group of Worker::Query* handlers
These are the queries that are handled in the confusing case statement
in the old daemon implementation, because they have very similar
structure.

Change-Id: Ie7143354f66cef4336dff8072ede9a56271a7e89
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1228
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>
2020-07-16 23:20:15 +00:00
Vincent Ambo
32735eebdd feat(3p/nix/nix-daemon): Implement Worker::HasSubstitutes handler
Change-Id: I0b01b554eee4b4e31416aabb498ea3d8b8a8092b
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1226
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>
2020-07-16 22:48:09 +00:00
Vincent Ambo
bb66262068 feat(3p/nix/nix-daemon): Implement Worker::IsValidPath handler
Change-Id: I741c2b9b58f234a21850640e2b0c071ff4441234
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1223
Tested-by: BuildkiteCI
Reviewed-by: lukegb <lukegb@tvl.fyi>
Reviewed-by: glittershark <grfn@gws.fyi>
2020-07-16 22:48:09 +00:00
Vincent Ambo
ba11727ce0 feat(3p/nix/proto): Add QueryMissing RPC call
Change-Id: I6a29c56a0f945afdef7434da539b4b91b2e4d2e6
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1222
Reviewed-by: glittershark <grfn@gws.fyi>
Tested-by: BuildkiteCI
2020-07-16 22:10:22 +00:00
Vincent Ambo
afe99225b9 feat(3p/nix/proto): Add AddToStoreNar RPC call
Change-Id: I335630644205adb280d83e006baf9d497ac1ac95
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1221
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>
2020-07-16 22:10:22 +00:00
Griffin Smith
cf6c48ef47 feat(3p/nix): Add NarFromPath
What it does I will never know. It takes a path and returns a path.
Something happens in the middle.

Change-Id: I499a9df700e5b954c9aaf6d694753ff34e773dfd
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1210
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
2020-07-16 21:41:40 +00:00
Griffin Smith
c3e96bcfa2 feat(3p/nix): Add AddSignatures
Change-Id: Ic37409c7987c261dc3eb91382d40f458fae6ea0c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1209
Reviewed-by: tazjin <mail@tazj.in>
Tested-by: BuildkiteCI
2020-07-16 21:41:40 +00:00
Griffin Smith
f4baaf79e2 feat(3p/nix): Add BuildDerivation proto
Change-Id: Ib66b4ff2da72677e74b6a713186c72f66d9f6f88
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1208
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
2020-07-16 21:41:40 +00:00
Griffin Smith
db4ac8ea7c chore(3p/nix/worker-protocol): Add missing includes
These files were always implicitly depended upon by worker-protocol.hh, but just so happened also always be included in places where the other ones were already present.

We are likely getting rid of this file sooner rather than later, but in
the meantime this will cause clangd to shut up while I'm editing the
file.

Change-Id: I0d765f8b86828b6612e5483417e452221ea3c5b1
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1207
Reviewed-by: tazjin <mail@tazj.in>
Tested-by: BuildkiteCI
2020-07-16 21:40:58 +00:00
Griffin Smith
4468e411fd feat(3p/nix): Add VerifyStore
Change-Id: I6a0596e986867e94857da461c746a80750830f7b
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1206
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
2020-07-16 21:40:58 +00:00
Griffin Smith
3999439fbb feat(3p/nix): Add OptimiseStore
Change-Id: I0d254504801283e018eef41bd5ea9850b17c0d80
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1205
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
2020-07-16 21:40:58 +00:00
Griffin Smith
b6cb681c0b feat(3p/nix): Add QueryValidDerivers
Change-Id: I52965bdbf143ae11201e1fafed1c25b3d8f1bee9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1204
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
2020-07-16 21:40:58 +00:00
Griffin Smith
143ef52592 feat(3p/nix): Add path query ops
Add QueryValidPaths and QuerySubstitutablePaths, both of which filter a
list of paths based on a set of criteria.

Change-Id: I6aa4647efe82b82dc9582a311643d5f9b6d521d5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1203
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
2020-07-16 21:40:58 +00:00
Griffin Smith
863a77dd2a feat(3p/nix): Add QueryPathFromHashPart
Change-Id: I0a31557f4cf585d3e539e29ef1a07b443aeec9fc
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1202
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
2020-07-16 21:40:58 +00:00
Vincent Ambo
d470ec0d29 refactor(3p/nix/libexpr): Use Abseil collection types for parser state
Replaces the previous uses of the (ordered!) std::map and std::set
with absl::flat_hash_{map|set}.

After some careful reading it seems that there is actually no
ordering dependency on these types, and the (drop-in) replacements
perform slightly better.

Overall this is not fixing a bottleneck, just a driveby thing.

Change-Id: Ided695dc75676bd58515aa9382df0be0a09c565e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1220
Reviewed-by: glittershark <grfn@gws.fyi>
Reviewed-by: isomer <isomer@tvl.fyi>
Tested-by: BuildkiteCI
2020-07-16 21:03:52 +00:00
Vincent Ambo
e05eb20102 refactor(3p/nix/libexpr): Move EvalState:* implementations out of parser.y
Several definitions of functions declared in eval.hh were previously
implemented in parser.y, this moves them over to parser.cc.

While this still isn't a reasonable place to keep them, the long-term
fix is more likely to be that eval.hh needs to be split up.

Before we get to that point however, this already gives us the ability
to use tooling with this code.

Change-Id: If06fb655325fe281564047ffab0a0a640428a0ee
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1219
Tested-by: BuildkiteCI
Reviewed-by: isomer <isomer@tvl.fyi>
2020-07-16 19:53:51 +00:00
Vincent Ambo
5ae2a2b847 refactor(3p/nix/libexpr): Extract static helpers out of parser.y
Moves several of the static helper functions into a new parser.cc
file.

Once the rest of the code is usefully extracted, these will be moved
to a private namespace.

Change-Id: I0d7b53dcefe31bb5c6bad3ad7f5fcb48276bf799
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1218
Tested-by: BuildkiteCI
Reviewed-by: isomer <isomer@tvl.fyi>
2020-07-16 19:53:51 +00:00
Vincent Ambo
d579ceb783 refactor(3p/nix/libexpr): Extract parser header out of Yacc file
First step (of many?) towards extracting all the inline code from the
Yacc file and keeping it somewhere more accessible instead.

Note that none of this code has previously been touched by a linter or
formatter, pretty much ever, so as it is extracted it also undergoes
similar changes to the whole codebase after the initial fork.

Change-Id: If3b7181f22e3b3fd8c58dfa9befa7ee2896ea06d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1217
Tested-by: BuildkiteCI
Reviewed-by: isomer <isomer@tvl.fyi>
2020-07-16 19:53:51 +00:00
Vincent Ambo
cb3d967508 refactor(3p/nix/libexpr): Use range insertion to merge nix::Bindings
Instead of manually iterating over the two bindings to be combined,
this adds a new static method on the Bindings class which merges two
attribute sets by calling the range insertion operator over them.

In some anecdotal tests, this can lead to a ~10% speed bump -
depending on the specific operation.

Change-Id: I5dea03b0589a83a789d3a8a0fc81d0d9e6598371
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1216
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>
2020-07-16 18:51:47 +00:00
Vincent Ambo
9a4a4058a8 style(3p/nix): Rename the project to tvix
Changes the derivation name & README overview to say "Tvix" instead of
"tazjix".

The previous name was mostly intended as a joke, and a way for me to
distinguish output paths. It's certainly not the intention to have a
portmanteau with my name here, especially now that several people are
contributing to the fork.

Change-Id: Icface5484d52355111eca23b2f6bd3b9e5567275
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1212
Reviewed-by: glittershark <grfn@gws.fyi>
Tested-by: BuildkiteCI
2020-07-16 15:28:52 +00:00
Griffin Smith
14e9e161c9 feat(3p/nix/proto): Add QueryDerivationOutputNames
Change-Id: I5452d0f76441a61d70031f567c9cb75249569c2a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1201
Reviewed-by: tazjin <mail@tazj.in>
Tested-by: BuildkiteCI
2020-07-16 01:54:05 +00:00
Griffin Smith
17c0962802 feat(3p/nix): Add proto for QueryPathInfo
Change-Id: I10ec338ef2d5360954abdc5bb3d4789f34b031fc
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1200
Reviewed-by: tazjin <mail@tazj.in>
Tested-by: BuildkiteCI
2020-07-16 01:54:05 +00:00
Griffin Smith
0386fad78f chore(3p/nix): {query,clear}FailedPaths are obsolete
They're not mentioned anywhere on the client or the server.

Change-Id: Ia78c8bde49326f6bf69b4aeded083cfd3235131f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1188
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
2020-07-16 01:51:19 +00:00
Griffin Smith
150e2bc908 feat(3p/nix/worker.proto): Add QueryAllValidPaths
takes nothing, returns paths

Change-Id: I4087b9b5a25d9edc76b97d0a0f553259693cca3a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1187
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
2020-07-16 01:51:19 +00:00
Vincent Ambo
622250bff9 feat(3p/nix/proto): Add additional worker-protocol operations
On the chopping block this time:

* requests/responses that return one or more store paths, and contain
  nothing else, have been changed to use the same types (StorePath and
  StorePaths, respectively)
* QuerySubstitutablePathInfos has been added. It should be noted that
  legacy Nix has two versions of this call, one that only queries a
  single info (deprecated) and one that queries multiple. We have only
  implemented the latter.
* QueryDerivationOutputs has been added.

Change-Id: Iccc9041e7064e141cf593467ecdcc327581c4056
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1186
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>
2020-07-16 01:19:38 +00:00
Vincent Ambo
eff165425a refactor(3p/libstore): Optimise nix::printString
Slight performance optimisation of nix::printString by copying chunks
of the input string which do not need escaping as contiguous blocks.

Paired-With: Perry Lorier <isomer@tvl.fyi>
Change-Id: I48bad90c8f2831ae4524c814a12b1982989922f9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1184
Tested-by: BuildkiteCI
Reviewed-by: edef <edef@edef.eu>
Reviewed-by: glittershark <grfn@gws.fyi>
2020-07-16 00:37:29 +00:00
Vincent Ambo
4303cedde4 style(3p/nix): Minor style fix in DrvInfo::setMeta
Paired-With: Perry Lorier <isomer@tvl.fyi>
Change-Id: I0655ecc675239b3d90e5adc305c3f37c1a904cf5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1181
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>
2020-07-16 00:37:29 +00:00
Vincent Ambo
d8ee0afda9 refactor(3p/nix): Compare attribute sets by pointer equality
Paired-With: Perry Lorier <isomer@tvl.fyi>
Change-Id: I418e9127c5d9d31559c59e461f17726ddbc051c4
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1180
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>
2020-07-16 00:37:29 +00:00
Vincent Ambo
5cd7cf93fc refactor(3p/nix): Use a static empty Bindings for 0-element attrs
A significant fraction of all created attribute sets are empty; hence
this is an easy optimisation to make.

Paired-With: Perry Lorier <isomer@tvl.fyi>
Change-Id: I0884194d04c1ee95b2b239a253515f2152bc0856
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1179
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>
2020-07-16 00:37:29 +00:00
Vincent Ambo
1390827b9e refactor(3p/nix): Revert VectorBindings implementation
This reverts parts of the CLs splitting the backing implementation for
Bindings and moves back to only the BTreeMap-backed implementation.

Our evaluation has indicated that the Vector-backed implementation
does not match the performance of the plain array used upstream, and
in my view the complexity introduced by it is not worth the relatively
small (single-digit percentage) performance increase with a
pivot-point close to the number of attributes yielded by
stdenv.mkDerivation.

Going forward we will trial implementations of attribute sets backed
by HAMTs, and investigate other mechanisms of speeding up the language.

Some changes from the previous CLs are retained, for example the
removal of insert_or_assign and the passing of capacity.

Change-Id: I6eb4b075b453949583360755055c21a29d7ff642
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1172
Reviewed-by: glittershark <grfn@gws.fyi>
Tested-by: BuildkiteCI
2020-07-15 00:16:06 +00:00
Vincent Ambo
c5de35ee62 refactor(3p/nix/libexpr): Backport upstream VectorBindings merge sort
Since one of the two implementations essentially uses the same shape
as the upstream Bindings, we backport their merge sort implementation
to ensure that we're doing the same thing semantically.

Paired-With: Luke Granger-Brown <git@lukegb.com>
Paired-With: Vincent Ambo <mail@tazj.in>
Paired-With: Perry Lorier <isomer@tvl.fyi>
Change-Id: I0d865897991eec0c4dd84d9bd0415cd1ca437792
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1162
Tested-by: BuildkiteCI
Reviewed-by: lukegb <lukegb@tvl.fyi>
Reviewed-by: glittershark <grfn@gws.fyi>
2020-07-13 23:51:29 +00:00
Vincent Ambo
6166c9daf2 fix(3p/nix/libexpr): Remove default & copy constructors for VectorBindings
Paired-With: Luke Granger-Brown <git@lukegb.com>
Paired-With: Vincent Ambo <mail@tazj.in>
Paired-With: Perry Lorier <isomer@tvl.fyi>

Change-Id: Ief2e59d461452ce599abc63f6ebcfa07a7062491
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1161
Tested-by: BuildkiteCI
Reviewed-by: lukegb <lukegb@tvl.fyi>
2020-07-13 23:51:29 +00:00
Vincent Ambo
d94690b537 fix(3p/nix/libexpr): Fix post-increment operator in BindingsIterator
We accidentally returned the incremented iterator in the
post-increment, this fixes it.

Paired-With: Luke Granger-Brown <git@lukegb.com>
Paired-With: Vincent Ambo <mail@tazj.in>
Paired-With: Perry Lorier <isomer@tvl.fyi>
Change-Id: I36c79eb56359bb12a78ad3489e7d7d2eb2053510
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1140
Tested-by: BuildkiteCI
Reviewed-by: lukegb <lukegb@tvl.fyi>
Reviewed-by: glittershark <grfn@gws.fyi>
2020-07-13 23:51:29 +00:00
Griffin Smith
785ca36316 refactor(3p/nix): Remove unused insert_or_assign
This function in never called, so let's just remove it

Paired-With: Luke Granger-Brown <git@lukegb.com>
Paired-With: Vincent Ambo <mail@tazj.in>
Change-Id: I79125866254d90dd0842bc86830d2103ac313cb6
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1125
Tested-by: BuildkiteCI
Reviewed-by: lukegb <lukegb@tvl.fyi>
Reviewed-by: isomer <isomer@tvl.fyi>
2020-07-13 23:50:24 +00:00
Griffin Smith
d5597b4784 feat(3p/nix): Statically pass bindings capacity where possible
To aid in making the decision of where to (currently just statically)
use a vector or btree as the backing implementation, add an extra
constructor argument to Bindings::NewGC for a capacity, and use
a (currently hardcoded at 32, for no good reason other than it felt like
a reasonable number) pivot to switch between our possible backing
implementations. Then, update all the call sites where it feels
reasonable that we know the capacity statically to *pass* that capacity
to the constructor.

Paired-With: Luke Granger-Brown <git@lukegb.com>
Paired-With: Vincent Ambo <mail@tazj.in>
Paired-With: Perry Lorier <isomer@tvl.fyi>
Change-Id: I1858c161301a1cd0e83aeeb9a58839378869e71d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1124
Tested-by: BuildkiteCI
Reviewed-by: lukegb <lukegb@tvl.fyi>
Reviewed-by: isomer <isomer@tvl.fyi>
2020-07-13 23:50:24 +00:00
Griffin Smith
d5505fcff9 feat(3p/nix): Add vector-backed impl for Bindings
Add an alternative impl of the now-abstract Bindings base class that is
backed by a std::vector, somewhat similar but stylistically a little
superior to the array-backed implementation in upstream nix. The
underlying iterator type in BindingsIterator is now backed by a
std::variant that we std::visit an overload over in order to implement
the various bits of the iterator interface.

Paired-With: Luke Granger-Brown <git@lukegb.com>
Paired-With: Vincent Ambo <mail@tazj.in>
Paired-With: Perry Lorier <isomer@tvl.fyi>
Change-Id: I7fbd1f4d5c449e2f9b82102a701b0bacd5e80672
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1123
Tested-by: BuildkiteCI
Reviewed-by: tazjin <mail@tazj.in>
2020-07-13 23:50:24 +00:00
Griffin Smith
98148e6711 refactor(3p/nix): Abstract away concrete bindings impl
To pave the way for the thing we want to do eventually which is use a
linear-time array for bindings (aka attribute sets) that are statically
known to be small enough to get a performance benefit from doing so,
make the Bindings class abstract, and define a BTreeBindings class that
inherits from it and is (currently always) returned from the static
initializer. The idea is that we'll have an ArrayBindings class as well
later that we can dispatch to conditionally based on an optional
"capacity" parameter or something like that.

There was some difficulty here in getting the iterator to work - the
approach we settled on ended up making a concrete BindingsIterator class
which will wrap a std::variant of either a btree iterator or something
else later, but right now just wraps a btree iterator.

Paired-With: Luke Granger-Brown <git@lukegb.com>
Paired-With: Vincent Ambo <mail@tazj.in>
Paired-With: Perry Lorier <isomer@tvl.fyi>
Change-Id: Ie02ca5a1c55e8ebf99ab1e957110bd9284278907
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1121
Tested-by: BuildkiteCI
Reviewed-by: isomer <isomer@tvl.fyi>
2020-07-13 23:50:24 +00:00
Vincent Ambo
ae16a8e9cf docs(3p/nix): Minor semantic correction to a comment
Change-Id: I1cfbb7e933da54198115b28ac509b0d04870fd8f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1127
Tested-by: BuildkiteCI
Reviewed-by: lukegb <lukegb@tvl.fyi>
Reviewed-by: glittershark <grfn@gws.fyi>
2020-07-13 21:09:36 +00:00
Vincent Ambo
fa161e9a38 refactor(3p/nix/libexpr): Remove the nix::Symbol default constructor
Having a default constructor for this causes a variety of annoying
situations across the codebase in which this is initialised to an
unexpected value, leading to constant guarding against those
conditions.

It turns out there's actually no intrinsic reason that this default
constructor needs to exist. The biggest one was addressed in CL/1138
and this commit cleans up the remaining bits.

Change-Id: I4a847f50bc90e72f028598196592a7d8730a4e01
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1139
Reviewed-by: isomer <isomer@tvl.fyi>
Tested-by: BuildkiteCI
2020-07-13 21:06:43 +00:00
isomer
afd1367337 fix(nix-channel): Actually strip whitespace.
This has been providing a warning and it's been bothering me.

Change-Id: I0548059950ec4250d7cf0938f9deae09eafe593c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1141
Reviewed-by: tazjin <mail@tazj.in>
Reviewed-by: isomer <isomer@tvl.fyi>
Tested-by: BuildkiteCI
2020-07-13 20:18:26 +00:00
Vincent Ambo
f3165f48aa refactor(3p/nix/libexpr): Make nix::AttrName a std::variant
nix:AttrName was one of the few classes that relied on the default
constructor of nix::Symbol (which I am trying to remove in a separate
change).

The class essentially represents the name of an attribute in a set,
which is either just a string expression or a dynamically evaluated
expression (e.g. string interpolation).

Previously it would be constructed by only setting one of the fields
and defaulting the other, now it is an explicit std::variant.

Note that there are several code paths where not all eventualities are
handled and this code is bug-for-bug compatible with those, except
that unknown conditions (which should never work) are now throwing
instead of silently doing ... something.

The language tests pass with this change, and the depot derivations
that I tested with evaluated successfully.

Change-Id: Icf1ee60a5f8308f4ab18a82749e00cf37a938a8f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1138
Reviewed-by: edef <edef@edef.eu>
Reviewed-by: glittershark <grfn@gws.fyi>
Tested-by: BuildkiteCI
2020-07-13 20:14:49 +00:00
Vincent Ambo
693661fe87 feat(3p/nix/libutil): Add util::overloaded class for std::visitor
Implements the fairly common lambda overload class used for std::visit
over variants and other things that require groups of callables.

Change-Id: Ia7448b7e1bd349b4909974758e6e6303a80d86d7
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1137
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>
Reviewed-by: edef <edef@edef.eu>
2020-07-13 20:14:49 +00:00
Eelco Dolstra
5e2151b521 fix(3p/nix/repl): Scan NixRepl for GC roots
Backport of b244e65cdb

Fixes https://github.com/NixOS/nix/issues/3175

------

Original fault description by puck:

I suspect I found the issue: The Nix Command structs are stored on the
heap (using ref<T>, a wrapper around std::shared_ptr<T>), which means
that any pointers that the NixRepl struct contains are eligible to be
reaped by the GC. This includes, but is not limited to, the Env
pointer, which seems to cause most of the random segfaults, or random
other values in the environment, which seems to be what @arianvp
experienced too.

Change-Id: I376d7cfd432daaa6f1fbbf77788ff048082f34e5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1001
Tested-by: BuildkiteCI
Reviewed-by: Kane York <rikingcoding@gmail.com>
Reviewed-by: glittershark <grfn@gws.fyi>
2020-07-10 22:25:30 +00:00
Andreas Rammhold
1937bc8624 fix(3p/nix/libstore): use exception instead of assertion when storepath is malformed
Previously the nix-daemon would crash if a user fed it invalid store
paths for drv files. The crash was due to the changed assertion
triggering. Whenever that assertion would hit the nix-daemon process
along with all it's current childs (running builds from all users) would
be interrupted.

Before this patch:

 $ nix-store --realise /nix/store/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.drv
 don't know how to build these paths:
   /nix/store/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.drv
 error: unexpected end-of-file

 < nix-daemon terminates >

With this patch:

 $ nix-store --realise /nix/store/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.drv
 don't know how to build these paths:
   /nix/store/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.drv
 error: path '/nix/store/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa.drv' is not a valid store path

 < nix-daemon does *NOT* terminate >

Change-Id: I01c5048c8a43a8b9154bdeb781d05b7744869ec0
Reviewed-on: https://cl.tvl.fyi/c/depot/+/981
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>
Reviewed-by: tazjin <mail@tazj.in>
2020-07-10 19:41:52 +00:00
Vincent Ambo
b485203b8c feat(3p/nix): Add additional worker protocol actions to proto
This takes us about halfway through worker-protocol.hh

I have left out the documentation strings for some of these items
because I don't feel that I can currently write an unambigous
description of them. For now I am just attempting to match the types.

Change-Id: Iae64b1676152fe4ea069e2021b75ad76465cf368
Reviewed-on: https://cl.tvl.fyi/c/depot/+/960
Tested-by: BuildkiteCI
Reviewed-by: isomer <isomer@tvl.fyi>
2020-07-10 17:12:39 +00:00
Vincent Ambo
93eb10566a docs(3p/nix): Update links & other things in README
Change-Id: I1a111c11a83f0506e0973615848cc9c0ef4765e2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/959
Reviewed-by: tazjin <mail@tazj.in>
Tested-by: BuildkiteCI
2020-07-09 22:53:28 +00:00
Vincent Ambo
8f4dea27a6 chore(3p/nix/libstore): Link to nixproto library
This isn't actually used yet, but forces the protos to be included in
the build which is useful for iteration.

Change-Id: I2abcaf297f34ae741f00ad0c929b226d5603c9d7
Reviewed-on: https://cl.tvl.fyi/c/depot/+/928
Tested-by: BuildkiteCI
Reviewed-by: isomer <isomer@tvl.fyi>
2020-07-05 19:17:12 +00:00