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2023-03-08Fix crash/hang with CA derivationsEelco Dolstra
The curl download can outlive DrvOutputSubstitutionGoal (if some other error occurs), so at shutdown setting the promise to an exception will fail because 'this' is no longer valid in the callback. This can manifest itself as a segfault, "corrupted double-linked list" or hang.
2023-03-03Merge pull request #7918 from zimbatm/fix-empty-nix-store-envEelco Dolstra
treat empty NIX_STORE_DIR env vars as unset
2023-03-02Remove FormatOrString and remaining uses of format()Eelco Dolstra
2023-03-01Treat empty env var paths as unsetFélix Baylac Jacqué
We make sure the env var paths are actually set (ie. not "") before sending them to the canonicalization function. If we forget to do so, the user will end up facing a puzzled failed assertion internal error. We issue a non-failing warning as a stop-gap measure. We could want to revisit this to issue a detailed failing error message in the future.
2023-02-17Wait with making /etc unwritable until after build env setupYorick van Pelt
This fixes /etc/nsswitch.conf
2023-02-14Make /etc writability conditional on uid-range featureYorick van Pelt
2023-02-14Don't allow writing to /etcYorick van Pelt
2023-02-10LocalDerivationGoal::startBuilder(): Use startProcess() to cloneEelco Dolstra
2023-02-10Simplify the PID namespace check: just try to mount /procEelco Dolstra
Fixes #7783.
2023-02-07Mention --no-sandbox if sandboxing is unsupportedEelco Dolstra
2023-02-07Check whether we can use PID namespacesEelco Dolstra
In unprivileged podman containers, /proc is not fully visible (there are other filesystems mounted on subdirectories of /proc). Therefore we can't mount a new /proc in the sandbox that matches the PID namespace of the sandbox. So this commit automatically disables sandboxing if /proc is not fully visible.
2023-02-07Fix auto-uid-allocation in Docker containersEelco Dolstra
This didn't work because sandboxing doesn't work in Docker. However, the sandboxing check is done lazily - after clone(CLONE_NEWNS) fails, we retry with sandboxing disabled. But at that point, we've already done UID allocation under the assumption that user namespaces are enabled. So let's get rid of the "goto fallback" logic and just detect early whether user / mount namespaces are enabled. This commit also gets rid of a compatibility hack for some ancient Linux kernels (<2.13).
2023-02-02Get rid of the `authHook` parameter on `processConnection`John Ericson
This is (morally) dead code. As @edolstra pointed out in https://github.com/NixOS/nix/pull/5226#discussion_r1073470813, this is no longer needed. I created this in 8d4162ff9e940ea9e2f97b07f3030a722695901a, so it is fitting that I now destroy it :).
2023-02-01Merge pull request #7203 from graham33/feature/cpp20Eelco Dolstra
Proposal: Use C++20
2023-01-30Merge pull request #5226 from NixOS/client-side-profilesEelco Dolstra
Move the default profiles to the user’s home
2023-01-30Merge branch 'master' into referenceablePathsThéophane Hufschmitt
2023-01-17Move the default profiles to the user’s homeThéophane Hufschmitt
Rather than using `/nix/var/nix/{profiles,gcroots}/per-user/`, put the user profiles and gcroots under `$XDG_DATA_DIR/nix/{profiles,gcroots}`. This means that the daemon no longer needs to manage these paths itself (they are fully handled client-side). In particular, it doesn’t have to `chown` them anymore (removing one need for root). This does change the layout of the gc-roots created by nix-env, and is likely to break some stuff, so I’m not sure how to properly handle that.
2023-01-13Merge pull request #6815 from obsidiansystems/better-wanted-outputsRobert Hensing
`OutputSpec` for `DerivationGoal` and `DerivedPath`, today's `OutputSpec` -> `ExtendedOutputSpec`
2023-01-13Merge pull request #7430 from tweag/ca/fix-nix-logThéophane Hufschmitt
Ca/fix nix log
2023-01-12Split `OutputsSpec::merge` into `OuputsSpec::{union_, isSubsetOf}`John Ericson
Additionally get rid of the evil time we made an empty `OutputSpec::Names()`.
2023-01-11Remove default constructor from `OutputsSpec`John Ericson
This forces us to be explicit. It also requires to rework how `from_json` works. A `JSON_IMPL` is added to assist with this.
2023-01-11Make it hard to construct an empty `OutputsSpec::Names`John Ericson
This should be a non-empty set, and so we don't want people doing this by accident. We remove the zero-0 constructor with a little inheritance trickery.
2023-01-11Split `OutputsSpec` and `ExtendedOutputsSpec`, use the former moreJohn Ericson
`DerivedPath::Built` and `DerivationGoal` were previously using a regular set with the convention that the empty set means all outputs. But it is easy to forget about this rule when processing those sets. Using `OutputSpec` forces us to get it right.
2023-01-06Merge pull request #7307 from hercules-ci/derivation-goal-improve-commentThéophane Hufschmitt
libstore/derivation-goal: Elaborate a TODO for performance concern
2023-01-04Move macOS sandbox files to sr/libstore/buildEelco Dolstra
2023-01-04Include macOS sandbox files in the Nix binaryEelco Dolstra
This basically reverts 6e5165b77370c76bfa39d4b55e9f83673f3bd466. It fixes errors like sandbox-exec: <internal init prelude>:292:47: unable to open sandbox-minimal.sb: not found when trying to run a development Nix installed in a user's home directory. Also, we're trying to minimize the number of installed files to make it possible to deploy Nix as a single statically-linked binary.
2023-01-03move `unsafeDiscardReferences` out of `outputChecks`Naïm Favier
It's not a check.
2023-01-03`unsafeDiscardReferences`Naïm Favier
Adds a new boolean structured attribute `outputChecks.<output>.unsafeDiscardReferences` which disables scanning an output for runtime references. __structuredAttrs = true; outputChecks.out.unsafeDiscardReferences = true; This is useful when creating filesystem images containing their own embedded Nix store: they are self-contained blobs of data with no runtime dependencies. Setting this attribute requires the experimental feature `discard-references` to be enabled.
2022-12-23nix develop: Set personalityEelco Dolstra
This makes 'nix develop' set the Linux personality in the same way that the actual build does, allowing a command like 'nix develop nix#devShells.i686-linux.default' on x86_64-linux to work correctly.
2022-12-15getBuildLog: factor out resolving derivationsTaeer Bar-Yam
2022-12-12Merge pull request #7421 from edolstra/lazy-trees-trivial-changesEelco Dolstra
Trivial changes from the lazy-trees branch
2022-12-09Merge pull request #7409 from tweag/fix-6383Théophane Hufschmitt
check the store for input before failing (hopefully fix #6383)
2022-12-07Trivial changes from the lazy-trees branchEelco Dolstra
2022-12-07Remove repeat and enforce-determinism optionsLinus Heckemann
These only functioned if a very narrow combination of conditions held: - The result path does not yet exist (--check did not result in repeated builds), AND - The result path is not available from any configured substituters, AND - No remote builders that can build the path are available. If any of these do not hold, a derivation would be built 0 or 1 times regardless of the repeat option. Thus, remove it to avoid confusion.
2022-12-06improve styleTaeer Bar-Yam
2022-12-05check the store for input before failing (hopefully fix #6383)Taeer Bar-Yam
2022-12-05check the store for input before failing (hopefully fix #6700)Taeer Bar-Yam
2022-12-02Clean up cgroup handling in getMaxCPU()Eelco Dolstra
Also, don't assume in LocalDerivationGoal that cgroups are mounted on /sys/fs/cgroup.
2022-11-29Merge pull request #3600 from NixOS/auto-uid-allocationEelco Dolstra
Automatic UID allocation
2022-11-29Restore ownership of / for non-uid-range buildsEelco Dolstra
2022-11-28Add a setting for enabling cgroupsEelco Dolstra
2022-11-28Merge pull request #7313 from yorickvP/nlohmann-everywhereEelco Dolstra
Replace src/libutil/json.cc with nlohmann
2022-11-23Merge remote-tracking branch 'origin/master' into auto-uid-allocationEelco Dolstra
2022-11-22Always call setgroups()Eelco Dolstra
We shouldn't skip this if the supplementary group list is empty, because then the sandbox won't drop the supplementary groups of the parent (like "root").
2022-11-21Merge pull request #6456 from amjoseph-nixpkgs/seccomp-mipsEelco Dolstra
local-derivation-goal.cc: enable seccomp filters for mips{32,64}
2022-11-21AutoUserLock: If sandboxing is disabled, use the build users groupEelco Dolstra
We have to use a gid that has write access to the Nix store.
2022-11-21Fix macOS buildEelco Dolstra
2022-11-21Merge remote-tracking branch 'origin/master' into auto-uid-allocationEelco Dolstra
2022-11-18Get CPU stats from the cgroupEelco Dolstra
2022-11-18Separate cgroup support from auto-uid-allocationEelco Dolstra
The new experimental feature 'cgroups' enables the use of cgroups for all builds. This allows better containment and enables setting resource limits and getting some build stats.