Commit graph

303 commits

Author SHA1 Message Date
regnat 6e899278d3 Better detect when buildPaths would be a no-op
`buildPaths` can be called even for stores where it's not defined in case it's
bound to be a no-op.
The “no-op detection” mechanism was only detecting the case wher `buildPaths`
was called on a set of (non-drv) paths that were already present on the store.

This commit extends this mechanism to also detect the case where `buildPaths`
is called on a set of derivation outputs which are already built on the store.

This only works with the ca-derivations flag. It could be possible to
extend this to also work without it, but it would add quite a bit of
complexity, and it's not used without it anyways.
2020-12-16 10:36:16 +01:00
Maximilian Bosch 93a8a005de
libstore/openStore: fix stores with IPv6 addresses
In `nixStable` (2.3.7 to be precise) it's possible to connect to stores
using an IPv6 address:

  nix ping-store --store ssh://root@2001:db8::1

This is also useful for `nixops(1)` where you could specify an IPv6
address in `deployment.targetHost`.

However, this behavior is broken on `nixUnstable` and fails with the
following error:

  $ nix store ping --store ssh://root@2001:db8::1
  don't know how to open Nix store 'ssh://root@2001:db8::1'

This happened because `openStore` from `libstore` uses the `parseURL`
function from `libfetchers` which expects a valid URL as defined in
RFC2732. However, this is unsupported by `ssh(1)`:

  $ nix store ping --store 'ssh://root@[2001:db8::1]'
  cannot connect to 'root@[2001:db8::1]'

This patch now allows both ways of specifying a store (`root@2001:db8::1`) and
also `root@[2001:db8::1]` since the latter one is useful to pass query
parameters to the remote store.

In order to achieve this, the following changes were made:

* The URL regex from `url-parts.hh` now allows an IPv6 address in the
  form `2001:db8::1` and also `[2001:db8::1]`.

* In `libstore`, a new function named `extractConnStr` ensures that a
  proper URL is passed to e.g. `ssh(1)`:

  * If a URL looks like either `[2001:db8::1]` or `root@[2001:db8::1]`,
    the brackets will be removed using a regex. No additional validation
    is done here as only strings parsed by `parseURL` are expected.

  * In any other case, the string will be left untouched.

* The rules above only apply for `LegacySSHStore` and `SSHStore` (a.k.a
  `ssh://` and `ssh-ng://`).

Unresolved questions:

* I'm not really sure whether we want to allow both variants of IPv6
  addresses in the URL parser. However it should be noted that both seem
  to be possible according to RFC2732:

  > This document incudes an update to the generic syntax for Uniform
  > Resource Identifiers defined in RFC 2396 [URL].  It defines a syntax
  > for IPv6 addresses and allows the use of "[" and "]" within a URI
  > explicitly for this reserved purpose.

* Currently, it's not supported to specify a port number behind the
  hostname, however it seems as this is not really supported by the URL
  parser. Hence, this is probably out of scope here.
2020-12-09 12:23:29 +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
Eelco Dolstra e6b7c7b79c Cleanup 2020-11-17 13:58:55 +01:00
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 ff4dea63c9 Generalize extra-* settings
This removes the extra-substituters and extra-sandbox-paths settings
and instead makes every array setting extensible by setting
"extra-<name> = <value>" in the configuration file or passing
"--<name> <value>" on the command line.
2020-10-29 18:17:39 +01:00
John Ericson 15fdb7cc6b Split out uds-remote-store.{cc.hh} 2020-10-11 17:37:05 +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
John Ericson f60b380a7f Merge remote-tracking branch 'upstream/master' into remove-storetype-delegate-regStore 2020-09-16 22:35:24 +00:00
Théophane Hufschmitt 77a0e2c5be
Remove useless exception copy
Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
2020-09-16 14:00:21 +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 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 aa4eac3788 fixup! Separate the instantiation and initialisation of the stores 2020-09-16 13:53:08 +02:00
regnat 3b57181f8e Separate the instantiation and initialisation of the stores
Add a new `init()` method to the `Store` class that is supposed to
handle all the effectful initialisation needed to set-up the store.
The constructor should remain side-effect free and just initialize the
c++ data structure.

The goal behind that is that we can create “dummy” instances of each
store to query static properties about it (the parameters it accepts for
example)
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
John Ericson 8017fe7487 Merge remote-tracking branch 'upstream/master' into single-ca-drv-build 2020-08-28 19:59:14 +00:00
Eelco Dolstra eb75282b8d
Merge pull request #3434 from Ericson2314/derivation-header-include-order
Revise division of labor in deserialization of derivations
2020-08-27 16:39:28 +02:00
John Ericson 45a2f1baab Rename drv output querying functions, like master
- `queryDerivationOutputMapAssumeTotal` -> `queryPartialDerivationOutputMap`
 - `queryDerivationOutputMapAssumeTotal` -> `queryDerivationOutputMap
2020-08-20 18:14:12 +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 d5af5763cf Merge branch 'master' of github.com:NixOS/nix into remove-storetype-delegate-regStore 2020-08-19 15:54:50 +00:00
John Ericson 950ddfdb82 Merge remote-tracking branch 'upstream/master' into derivation-header-include-order 2020-08-18 14:36:44 +00:00
John Ericson 3c8b5b6219 Merge remote-tracking branch 'upstream/master' into single-ca-drv-build 2020-08-14 17:00:13 +00:00
Eelco Dolstra d81f13f7cb
Merge pull request #3899 from obsidiansystems/make-narHash-not-optional
Make narHash in ValidPathInfo not optional
2020-08-14 17:00:18 +02:00
John Ericson 85aacbee64 Use TeeSink and TeeSouce in a few more places 2020-08-13 14:51:17 +00:00
John Ericson e913a2989f Squashed get CA derivations building 2020-08-07 19:51:55 +00:00
John Ericson e89b5bd0bf Minimize the usage of Hash::dummy 2020-08-06 18:31:48 +00:00
Carlo Nucera 8241e660ba Remove Hash::operator bool ()
Since the hash is not optional anymore
2020-08-05 15:30:38 -04:00
Carlo Nucera be6e1c6457 Merge branch 'master' of github.com:NixOS/nix into make-narHash-not-optional 2020-08-05 15:14:47 -04:00
Carlo Nucera 1d71028f4d Remove optionality in ValidPathInfo::narInfo 2020-08-05 14:42:48 -04:00
John Ericson cf939055c8 Merge remote-tracking branch 'upstream/master' into drv-outputs-map-allow-missing 2020-08-05 16:43:30 +00:00
John Ericson 839f0fe095 Merge remote-tracking branch 'upstream/master' into misc-ca 2020-08-05 14:40:01 +00:00
John Ericson 1dfcbebc95 Organize and format code a bit 2020-08-04 22:28:10 +00:00
John Ericson fbeb8695fb Merge remote-tracking branch 'upstream/master' into drv-outputs-map-allow-missing 2020-08-04 18:35:33 +00:00
John Ericson d3452a5ed6 Merge remote-tracking branch 'upstream/master' into better-ca-parse-errors 2020-08-04 16:13:20 +00:00
John Ericson 54281f3ac1 addToStore in terms of addToStoreFromDump is not local-store-specific 2020-08-03 04:13:45 +00:00
John Ericson 9357512d73 Merge remote-tracking branch 'upstream/master' into derivation-header-include-order 2020-08-01 19:38:35 +00:00
Carlo Nucera b6d97fdbf4 Merge branch 'master' of github.com:NixOS/nix into drv-outputs-map-allow-missing 2020-07-31 13:12:51 -04:00
Carlo Nucera eee6ef86cd Merge branch 'master' of github.com:NixOS/nix into better-ca-parse-errors 2020-07-30 18:27:25 -04:00
Matthew Bauer 05ac4db39a Merge remote-tracking branch 'origin/master' into substitute-other-storedir 2020-07-30 12:38:24 -05:00
Eelco Dolstra c159f48a39 Cleanup 2020-07-29 00:24:55 +02:00
John Ericson 699fc89b39 Merge remote-tracking branch 'upstream/master' into hash-always-has-type 2020-07-27 14:22:45 +00:00
John Ericson 2c7557481b queryDerivationOutputMap no longer assumes all outputs have a mapping
This assumption is broken by CA derivations. Making a PR now to do the
breaking daemon change as soon as possible (if it is already too late,
we can bump protocol intead).
2020-07-24 21:14:06 +00:00
John Ericson 66a2067288 Merge remote-tracking branch 'upstream/master' into better-ca-parse-errors 2020-07-23 14:56:35 +00:00
Eelco Dolstra ff314f186e
Merge pull request #3736 from obsidiansystems/allow-relative-paths-in-store-option
Allow relative paths in --store option
2020-07-21 19:43:07 +02:00
John Ericson 6cce32c8e8 Change logic for deciding what is a relative path for the local store
The was Eelco's prefered logic, and it looks good to me!
2020-07-21 15:39:47 +00:00
John Ericson cdb3f39b64 Merge remote-tracking branch 'upstream/master' into better-ca-parse-errors 2020-07-21 13:43:20 +00:00