Commit graph

419 commits

Author SHA1 Message Date
John Ericson
8ba089597f Merge remote-tracking branch 'upstream/master' into path-info 2022-03-10 15:48:14 +00:00
Eelco Dolstra
761242afa0 BuildResult: Use DerivedPath 2022-03-09 12:25:35 +01:00
Eelco Dolstra
a4604f1928 Add Store::buildPathsWithResults()
This function is like buildPaths(), except that it returns a vector of
BuildResults containing the exact statuses and output paths of each
derivation / substitution. This is convenient for functions like
Installable::build(), because they then don't need to do another
series of calls to get the outputs of CA derivations. It's also a
precondition to impure derivations, where we *can't* query the output
of those derivations since they're not stored in the Nix database.

Note that PathSubstitutionGoal can now also return a BuildStatus.
2022-03-08 19:56:34 +01:00
John Ericson
6636202356 Factor out a GcStore interface
Starts progress on #5729.

The idea is that we should not have these default methods throwing
"unimplemented". This is a small step in that direction.

I kept `addTempRoot` because it is a no-op, rather than failure. Also,
as a practical matter, it is called all over the place, while doing
other tasks, so the downcasting would be annoying.

Maybe in the future I could move the "real" `addTempRoot` to `GcStore`,
and the existing usecases use a `tryAddTempRoot` wrapper to downcast or
do nothing, but I wasn't sure whether that was a good idea so with a
bias to less churn I didn't do it yet.
2022-03-03 19:01:25 +00:00
John Ericson
e862833ec6 Move BuildResult defintion to its own header
Just like we did for `ValidPathInfo` in
d92d4f85a5.
2022-03-01 19:43:07 +00:00
Eelco Dolstra
df552ff53e Remove std::string alias (for real this time)
Also use std::string_view in a few more places.
2022-02-25 16:13:02 +01:00
Eelco Dolstra
2d6d9a28eb addToStoreFromDump(): Take std::string_view 2022-02-16 11:02:35 +01:00
Eelco Dolstra
35dbdbedd4 nix store ping: Report Nix daemon version
Fixes #5952.
2022-01-25 21:15:58 +01:00
Eelco Dolstra
4dda1f92aa Add command 'nix store copy-log'
Fixes #5222.
2022-01-18 14:08:49 +01:00
Eelco Dolstra
d62a9390fc Get rid of std::shared_ptr<std::string> and ref<std::string>
These were needed back in the pre-C++11 era because we didn't have
move semantics. But now we do.
2022-01-18 11:12:30 +01:00
Eelco Dolstra
9747ea84b4 Remove CPU locking
This was already accidentally disabled in ba87b08. It also no longer
appears to be beneficial, and in fact slow things down, e.g. when
evaluating a NixOS system configuration:

  elapsed time:       median =      3.8170  mean =      3.8202  stddev =      0.0195  min =      3.7894  max =      3.8600  [rejected, p=0.00000, Δ=0.36929±0.02513]
2021-12-22 15:56:25 +01:00
Eelco Dolstra
92ff5b4254 Tweak warning 2021-12-07 22:22:02 +01:00
regnat
fa58bff1ab Fallback when the daemon is too old for CA derivations
Fix #5712
2021-12-06 11:45:18 +01:00
Eelco Dolstra
6463eaca14
Merge pull request #5472 from NixOS/async-realisation-substitution
async realisation substitution
2021-11-16 12:54:20 +01:00
Eelco Dolstra
67179472df
Merge pull request #5494 from tweag/balsoft/allow-references-in-addPath
Allow references in addPath
2021-11-09 15:57:39 +01:00
Alexander Bantyev
0b005bc9d6
addToStore, addToStoreFromDump: refactor: pass refs by const reference
Co-Authored-By: Eelco Dolstra <edolstra@gmail.com>
2021-11-09 12:24:49 +03:00
regnat
1f3c3a3785 Make the flake options work when using the daemon
When setting flake-local options (with the `nixConfig` field), forward
these options to the daemon in case we’re using one.

This is necessary in particular for options like `binary-caches` or
`post-build-hook` to make sense.

Fix <343239fc8a (r44356843)>
2021-11-05 16:19:16 +01:00
regnat
96670ed216 Expose an async interface for queryRealisation
Doesn’t change much so far because everything is still using it
synchronously, but should allow the binary cache to fetch stuff in
parallel
2021-11-03 06:51:34 +01:00
Alexander Bantyev
b9234142f5
addToStore, addToStoreFromDump: add references argument
Allow to pass a set of references to be added as info to the added paths.
2021-10-23 21:30:51 +03:00
Eelco Dolstra
9947f1646a Remove syncWithGC() 2021-10-13 12:12:44 +02:00
John Ericson
edf67e1508 Merge branch 'path-info' into ca-drv-exotic 2021-10-01 17:25:22 +00:00
John Ericson
13b6b64589 Merge remote-tracking branch 'upstream/master' into path-info 2021-10-01 17:12:54 +00:00
John Ericson
9af9ab4212 Merge branch 'path-info' into ca-drv-exotic 2021-09-30 22:42:15 +00:00
John Ericson
f4f3203aa7 Merge remote-tracking branch 'upstream/master' into path-info 2021-09-30 22:41:53 +00:00
John Ericson
242f9bf3dc std::visit by reference
I had started the trend of doing `std::visit` by value (because a type
error once mislead me into thinking that was the only form that
existed). While the optomizer in principle should be able to deal with
extra coppying or extra indirection once the lambdas inlined, sticking
with by reference is the conventional default. I hope this might even
improve performance.
2021-09-30 21:35:09 +00:00
Eelco Dolstra
ea9df6fe51 Shut down write side before draining the read side
This is important if the remote side *does* execute
nix-store/nix-daemon successfully, but stdout is polluted
(e.g. because the remote user's bashrc script prints something to
stdout). In that case we have to shutdown the write side to force the
remote nix process to exit.
2021-09-23 18:01:04 +02:00
Eelco Dolstra
994348e9e0 SSHStore / LegacySSHStore: Show a better error message if the remote is "nologin"
Instead of

  error: serialised integer 7161674624452356180 is too large for type 'j'

we now get

  error: 'nix-store --serve' protocol mismatch from 'sshtest@localhost', got 'This account is currently not available.'

Fixes https://github.com/NixOS/nixpkgs/issues/37287.
2021-09-23 17:50:29 +02:00
regnat
d9ba3385a9 Don’t send the experimental-features to the daemon
The experimental features are, well, experimental, and shouldn’t be
carelessly and transparently enabled.
Besides, some (`ca-derivations` at least) need to be enabled at startup
in order to work properly.
So it’s better to just require that daemon be started with the right
`experimental-features` option.

Fix #5017
2021-07-30 10:34:50 +02:00
Eelco Dolstra
fe1f34fa60 Low-latency closure copy
This adds a new store operation 'addMultipleToStore' that reads a
number of NARs and ValidPathInfos from a Source, allowing any number
of store paths to be copied in a single call. This is much faster on
high-latency links when copying a lot of small files, like .drv
closures.

For example, on a connection with an 50 ms delay:

Before:

  $ nix copy --to 'unix:///tmp/proxy-socket?root=/tmp/dest-chroot' \
    /nix/store/90jjw94xiyg5drj70whm9yll6xjj0ca9-hello-2.10.drv \
    --derivation --no-check-sigs
  real    0m57.868s
  user    0m0.103s
  sys     0m0.056s

After:

  real    0m0.690s
  user    0m0.017s
  sys     0m0.011s
2021-07-26 13:31:09 +02:00
Eelco Dolstra
9957315ce0 RemoteStore::buildPaths(): Handle evalStore 2021-07-22 22:50:48 +02:00
Eelco Dolstra
eb6db4fd38 buildPaths(): Add an evalStore argument
With this, we don't have to copy the entire .drv closure to the
destination store ahead of time (or at all). Instead, buildPaths()
reads .drv files from the eval store and copies inputSrcs to the
destination store if it needs to build a derivation.

Issue #5025.
2021-07-22 09:59:51 +02:00
Eelco Dolstra
3d9de41a5b Hacky fast closure copying mechanism 2021-07-22 09:59:51 +02:00
regnat
a8416866cf Always send the realisations as JSON
Align all the worker protocol with `buildDerivation` which inlines the
realisations as one opaque json blob.
That way we don’t have to bother changing the remote store protocol
when the definition of `Realisation` changes, as long as we keep the
json backwards-compatible
2021-05-19 11:45:16 +02:00
Maximilian Bosch
e5951a6b2f
Bump version number for DerivedPath changes
I guess I misunderstood John's initial explanation about why wildcards
for outputs are sent to older stores[1]. My `nix-daemon` from 2021-03-26
also has version 1.29, but misses the wildcard[2]. So bumping seems to
be the right call.

[1] https://github.com/NixOS/nix/pull/4759#issuecomment-830812464
[2] 255d145ba7
2021-05-03 01:12:23 +02:00
John Ericson
d0ed11ca72 Merge commit '1b6cf0d5f56e166a1cbbf38142375b7a92fc88f2' into ca-drv-exotic 2021-04-05 19:06:43 -04:00
John Ericson
386765e3ff Merge commit 'd5cef6c33a051dfc672cb1e5f4739948b167315b' into ca-drv-exotic 2021-04-05 19:06:37 -04:00
John Ericson
cdc9f34a44 Merge commit 'e12308dd63f0ad27b22dcdb3da89c411eebcad2b' into ca-drv-exotic 2021-04-05 19:06:30 -04:00
John Ericson
1b6cf0d5f5 Merge remote-tracking branch 'upstream/master' into path-info 2021-04-05 18:47:33 -04:00
John Ericson
d5cef6c33a Merge commit '9dfb97c987d8b9d6a3d15f016e40f22f91deb764' into path-info 2021-04-05 18:40:30 -04:00
John Ericson
e12308dd63 Merge branch 'master' into path-info 2021-04-05 18:29:52 -04:00
John Ericson
9b805d36ac Rename Buildable 2021-04-05 09:52:25 -04:00
John Ericson
9dfb97c987 "newtype" BuildableReq
This makes for better types errors and allows us to give it methods.
2021-04-05 09:35:55 -04:00
John Ericson
255d145ba7 Use BuildableReq for buildPaths and ensurePath
This avoids an ambiguity where the `StorePathWithOutputs { drvPath, {}
}` could mean "build `brvPath`" or "substitute `drvPath`" depending on
context.

It also brings the internals closer in line to the new CLI, by
generalizing the `Buildable` type is used there and makes that
distinction already.

In doing so, relegate `StorePathWithOutputs` to being a type just for
backwards compatibility (CLI and RPC).
2021-04-05 08:33:00 -04:00
John Ericson
f44206e719 Fix typos in the last PR #4656 2021-03-22 15:18:48 +00:00
John Ericson
9d309de0de Clean up serialization for BuildResult
A few versioning mistakes were corrected:

- In 27b5747ca7, Daemon protocol had some
  version `>= 0xc` that should have been `>= 0x1c`, or `28` since the
  other conditions used decimal.

- In a2b69660a9, legacy SSH gated new CAS
  info on version 6, but version 5 in the server. It is now 6
  everywhere.

Additionally, legacy ssh was sending over more metadata than the daemon
one was. The daemon now sends that data too.

CC @regnat

Co-authored-by: Cole Helbling <cole.e.helbling@outlook.com>
2021-03-22 14:57:41 +00:00
John Ericson
7863036634 Merge remote-tracking branch 'obsidian/path-info' into ca-drv-exotic 2021-02-27 05:46:59 +00:00
John Ericson
f0ad29acc1 Merge remote-tracking branch 'upstream/master' into path-info 2021-02-27 05:42:13 +00:00
John Ericson
90d76fa399 Merge remote-tracking branch 'obsidian/path-info' into ca-drv-exotic 2021-02-25 21:58:41 +00:00
John Ericson
ca0994819d Merge remote-tracking branch 'upstream/master' into path-info 2021-02-25 21:51:05 +00:00
regnat
27b5747ca7 RemoteStore: Send back the new realisations
To allow it to build ca derivations remotely
2021-02-23 08:04:03 +01:00
regnat
6fbf3fe636 Make the build-hook work with ca derivations
- Pass it the name of the outputs rather than their output paths (as
  these don't exist for ca derivations)
- Get the built output paths from the remote builder
- Register the new received realisations
2021-02-23 08:04:03 +01:00
John Ericson
1a1af75338 Overhaul store subclassing
We embrace virtual the rest of the way, and get rid of the
`assert(false)` 0-param constructors.

We also list config base classes first, so the constructor order is
always:

  1. all the configs
  2. all the stores

Each in the same order
2020-12-20 15:47:14 +00:00
regnat
58cdab64ac Store metadata about drv outputs realisations
For each known realisation, store:
- its output
- its output path

This comes with a set of needed changes:

- New `realisations` module declaring the types needed for describing
  these mappings
- New `Store::registerDrvOutput` method registering all the needed informations
  about a derivation output (also replaces `LocalStore::linkDeriverToPath`)
- new `Store::queryRealisation` method to retrieve the informations for a
  derivations

This introcudes some redundancy on the remote-store side between
`wopQueryDerivationOutputMap` and `wopQueryRealisation`.
However we might need to keep both (regardless of backwards compat)
because we sometimes need to get some infos for all the outputs of a
derivation (where `wopQueryDerivationOutputMap` is handy), but all the
stores can't implement it − because listing all the outputs of a
derivation isn't really possible for binary caches where the server
doesn't allow to list a directory.
2020-12-11 20:41:32 +01:00
Eelco Dolstra
1b79b5b983 read(): Use char * instead of unsigned char *
This gets rid of some pointless casts.
2020-12-02 14:17:27 +01:00
Eelco Dolstra
faa31f4084 Sink: Use std::string_view 2020-12-02 14:17:27 +01:00
Eelco Dolstra
df5c69a94e
Merge pull request #4180 from Ma27/ssh-ng-substitute
Allow substituting paths when building remotely using `ssh-ng://`
2020-11-17 14:01:04 +01:00
Jake Waksbaum
01db455733 Fix deadlock in nix-store when max-connections=1
This fixes a bug I encountered where `nix-store -qR` will deadlock when
the `--include-outputs` flag is passed and `max-connections=1`.

The deadlock occurs because `RemoteStore::queryDerivationOutputs` takes
the only connection from the connection pool and uses it to check the
daemon version. If the version is new enough, it calls
`Store::queryDerivationOutputs`, which eventually calls
`RemoteStore::queryPartialDerivationOutputMap`, where we take another
connection from the connection pool to check the version again. Because
we still haven't released the connection from the caller, this waits for
a connection to be available, causing a deadlock.

This diff solves the issue by using `getProtocol` to check the protocol
version in the caller `RemoteStore::queryDerivationOutputs`, which
immediately frees the connection back to the pool before returning the
protocol version. That way we've already freed the connection by the
time we call `RemoteStore::queryPartialDerivationOutputMap`.
2020-11-16 02:35:50 -05:00
Maximilian Bosch
3a63fc6cd5
Allow substituting paths when building remotely using ssh-ng://
Until now, it was not possible to substitute missing paths from e.g.
`https://cache.nixos.org` on a remote server when building on it using
the new `ssh-ng` protocol.

This is because every store implementation except legacy `ssh://`
ignores the substitution flag passed to `Store::queryValidPaths` while
the `legacy-ssh-store` substitutes the remote store using
`cmdQueryValidPaths` when the remote store is opened with `nix-store
--serve`.

This patch slightly modifies the daemon protocol to allow passing an
integer value suggesting whether to substitute missing paths during
`wopQueryValidPaths`. To implement this on the daemon-side, the
substitution logic from `nix-store --serve` has been moved into a
protected method named `Store::substitutePaths` which gets currently
called from `LocalStore::queryValidPaths` and `Store::queryValidPaths`
if `maybeSubstitute` is `true`.

Fixes #2770
2020-11-05 20:12:37 +01:00
Eelco Dolstra
ab2ef851b6
Merge pull request #4207 from hercules-ci/fix-RemoteStore-filterSource-deadlock
Fix RemoteStore pool deadlock in filterSource etc
2020-11-02 14:46:10 +01:00
Eelco Dolstra
db5424bf09 Don't send eval-related settings to the daemon 2020-11-02 13:57:58 +01:00
Robert Hensing
2192cac634 Fix RemoteStore pool deadlock in filterSource etc 2020-10-30 21:47:34 +01:00
John Ericson
a4e5de1b9d Derivations can output "text-hashed" data
In particular, this means that derivations can output derivations. But
that ramification isn't (yet!) useful as we would want, since there is
no way to have a dependent derivation that is itself a dependent
derivation.
2020-10-13 02:15:48 +00:00
John Ericson
a0f369aa3f Merge remote-tracking branch 'upstream/master' into path-info 2020-10-12 20:48:35 +00:00
John Ericson
15fdb7cc6b Split out uds-remote-store.{cc.hh} 2020-10-11 17:37:05 +00:00
Eelco Dolstra
c43e882f54 Serialize exceptions from the daemon to the client 2020-10-07 17:13:54 +02:00
Eelco Dolstra
85c8be6286 Remove static variable name clashes
This was useful for an experiment with building Nix as a single
compilation unit. It's not very useful otherwise but also doesn't
hurt...
2020-10-06 13:49:20 +02:00
John Ericson
dae4409071 Merge remote-tracking branch 'upstream/master' into path-info 2020-10-06 04:20:44 +00:00
John Ericson
b759701652 nix::worker_proto -> worker_proto 2020-09-30 00:41:18 +00:00
John Ericson
45a0ed82f0 Revert "Use template structs instead of phantoms"
This reverts commit 9ab07e99f5.
2020-09-30 00:39:06 +00:00
John Ericson
45ca7c3e4b Merge remote-tracking branch 'upstream/master' into path-info 2020-09-23 22:35:41 +00:00
John Ericson
e9fc2031f0 Merge remote-tracking branch 'upstream/master' into templated-daemon-protocol 2020-09-22 14:18:31 +00:00
Eelco Dolstra
980edd1f3a RemoteStore::addCAToStore(): Don't hold connection while calling queryPathInfo()
This leads to a deadlock if we're at the connection limit.
2020-09-22 15:28:20 +02:00
Eelco Dolstra
35a0ac1838 Style fixes 2020-09-22 11:40:19 +02:00
Eelco Dolstra
92ac8df0ec Merge branch 'add-ca-to-store' of https://github.com/hercules-ci/nix 2020-09-22 11:31:33 +02:00
John Ericson
b92d3b2edd Merge remote-tracking branch 'upstream/master' into templated-daemon-protocol 2020-09-22 00:45:55 +00:00
Eelco Dolstra
d51ba43047 Move Callback into its own header
This gets rid of the inclusion of <future> in util.hh, cutting
compilation time by ~20s (CPU time).

Issue #4045.
2020-09-21 18:42:21 +02:00
Robert Hensing
fa08db5c4c wopAddToStore: return ValidPathInfo
A ValidPathInfo is created anyway. By returning it we can save a
roundtrip and we have a nicer interface.
2020-09-21 07:55:47 +02:00
Robert Hensing
7c68264085 wopAddToStore: add RepairFlag 2020-09-21 07:55:47 +02:00
Robert Hensing
8279178b07 Move FramedSink next to FramedSource 2020-09-21 07:55:47 +02:00
Robert Hensing
c602ebfb34 Refactor wopAddToStore to make wopAddTextToStore obsolete 2020-09-21 07:55:45 +02:00
Robert Hensing
e34fe47d0c Overhaul wopAddToStore 2020-09-21 07:54:05 +02:00
Robert Hensing
14b30b3f3d Move FramedSource and FramedSink, extract withFramedSink 2020-09-17 20:21:04 +02:00
John Ericson
f60b380a7f Merge remote-tracking branch 'upstream/master' into remove-storetype-delegate-regStore 2020-09-16 22:35:24 +00:00
regnat
888f7afe9f Fix build issues with gcc 2020-09-16 13:53:09 +02:00
regnat
f24f0888f9 Document the new store hierarchy 2020-09-16 13:53:09 +02:00
regnat
7f103dcddd Properly filter the stores according to their declared uriSchemes
When opening a store, only try the stores whose `uriSchemes()` include
the current one
2020-09-16 13:53:09 +02:00
regnat
5895184df4 Correctly call all the parent contructors of the stores
Using virtual inheritance means that only the default constructors of
the parent classes will be called, which isn't what we want
2020-09-16 13:53:09 +02:00
regnat
22afa8fb4d Separate store configs from the implems
Rework the `Store` hierarchy so that there's now one hierarchy for the
store configs and one for the implementations (where each implementation
extends the corresponding config). So a class hierarchy like

```
StoreConfig-------->Store
    |                 |
    v                 v
SubStoreConfig----->SubStore
    |                 |
    v                 v
SubSubStoreConfig-->SubSubStore
```

(with virtual inheritance to prevent DDD).

The advantage of this architecture is that we can now introspect the configuration of a store without having to instantiate the store itself
2020-09-16 13:53:08 +02:00
regnat
fa32560169 Fix the registration of stores 2020-09-16 13:53:08 +02:00
regnat
7d5bdf8b56 Make the store plugins more introspectable
Directly register the store classes rather than a function to build an
instance of them.
This gives the possibility to introspect static members of the class or
choose different ways of instantiating them.
2020-09-16 13:53:08 +02:00
John Ericson
c08c9f08c7 Merge remote-tracking branch 'upstream/master' into remove-storetype-delegate-regStore 2020-09-15 14:08:35 +00:00
regnat
057c6203b5 gracefully handle old daemon versions
Add a fallback path in `queryPartialDerivationOutputMap` for daemons
that don't support it.

Also upstreams a couple methods from `SSHStore` to `RemoteStore` as this
is needed to handle the fallback path.
2020-09-15 09:58:01 +02:00
aszlig
525b38eee8
Fix unspecified behaviour in readStorePathCAMap
When deploying a Hydra instance with current Nix master, most builds
would not run because of errors like this:

  queue monitor: error: --- Error --- hydra-queue-runner
  error: --- UsageError --- nix-daemon
  not a content address because it is not in the form '<prefix>:<rest>': /nix/store/...-somedrv

The last error message is from parseContentAddress, which expects a
colon-separated string, however what we got here is a store path.

Looking at the worker protocol, the following message sent to the Nix
daemon caused the error above:

  0x1E -> wopQuerySubstitutablePathInfos
  0x01 -> Number of paths
  0x16 -> Length of string
  "/nix/store/...-somedrv"
  0x00 -> Length of string
  ""

Looking at writeStorePathCAMap, the store path is indeed the first field
that's transmitted. However, readStorePathCAMap expects it to be the
*second* field *on my machine*, since expression evaluation order is a
classic form of unspecified behaviour[1] in C++.

This has been introduced in https://github.com/NixOS/nix/pull/3689,
specifically in commit 66a62b3189.

[1]: https://en.wikipedia.org/wiki/Unspecified_behavior#Order_of_evaluation_of_subexpressions

Signed-off-by: aszlig <aszlig@nix.build>
2020-09-13 02:40:51 +02:00
Eelco Dolstra
a0f19d9f3a RemoteStore::addToStore(): Fix race between stderrThread and NAR writer
As pointed out by @B4dM4n, the call to to.flush() on stderrThread is
unsafe because the NAR writer thread is also writing to 'to'.

Fixes #3943.
2020-08-27 14:50:51 +02:00
John Ericson
422affe102 tabs -> spaces
Sorry I let the tab sneak in there in the first place.
2020-08-21 19:19:24 +00:00
John Ericson
c265e0ea82 Merge remote-tracking branch 'upstream/master' into templated-daemon-protocol 2020-08-20 20:24:22 +00:00
Eelco Dolstra
4d77513d97
Merge pull request #3859 from obsidiansystems/drv-outputs-map-allow-missing
`queryDerivationOutputMap` no longer assumes all outputs have a mapping
2020-08-20 16:49:23 +02:00
John Ericson
9a9d834dc7 Rename drv output querying functions
- `queryDerivationOutputMapAssumeTotal` -> `queryPartialDerivationOutputMap`
 - `queryDerivationOutputMapAssumeTotal` -> `queryDerivationOutputMap`
2020-08-20 14:12:51 +00:00
John Ericson
a83694c7a1 Use RemoteStore to open connection for proxying daemon
Removes duplicate websocket opening code, and also means we should be
able to to ssh-ssh-... daemon relays, not just uds-uds-... ones.
2020-08-19 19:34:47 +00:00
John Ericson
d5af5763cf Merge branch 'master' of github.com:NixOS/nix into remove-storetype-delegate-regStore 2020-08-19 15:54:50 +00:00