aboutsummaryrefslogtreecommitdiff
path: root/src/libstore/globals.cc
AgeCommit message (Collapse)Author
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.
2023-02-01Merge pull request #7203 from graham33/feature/cpp20Eelco Dolstra
Proposal: Use C++20
2022-12-24libstore: Make sure that initNix has been calledRobert Hensing
Prevent bugs like https://github.com/cachix/cachix/pull/477
2022-11-08Split auto UID allocation from cgroupsEelco Dolstra
Cgroups are now only used for derivations that require the uid-range range feature. This allows auto UID allocation even on systems that don't have cgroups (like macOS). Also, make things work on modern systems that use cgroups v2 (where there is a single hierarchy and no "systemd" controller).
2022-10-22Fix C++20 warningsGraham Bennett
2022-10-14Remove useless debug statementsEelco Dolstra
We haven't parsed the '-v' command line flags yet when this code executes, so we can't actually get debug output here.
2022-10-14Use /usr/bin/trueEelco Dolstra
2022-10-13Improve Rosetta detectionEelco Dolstra
Turns out that one of those *.plist files can exist even if Rosetta is not installed. So let's just try to run an x86_64-darwin binary directly.
2022-07-19libstore/globals.cc: Move cgroup detection to libutilAlex Wied
2022-07-19libstore/globals.cc: Automatically set cores based on cgroup CPU limitAlex Wied
By default, Nix sets the "cores" setting to the number of CPUs which are physically present on the machine. If cgroups are used to limit the CPU and memory consumption of a large Nix build, the OOM killer may be invoked. For example, consider a GitLab CI pipeline which builds a large software package. The GitLab runner spawns a container whose CPU is limited to 4 cores and whose memory is limited to 16 GiB. If the underlying machine has 64 cores, Nix will invoke the build with -j64. In many cases, that level of parallelism will invoke the OOM killer and the build will completely fail. This change sets the default value of "cores" to be ceil(cpu_quota / cpu_period), with a fallback to std::thread::hardware_concurrency() if cgroups v2 is not detected.
2022-06-23Remove NIX_LIBEXEC_DIREelco Dolstra
2022-06-23Fix build-remote in nix-staticEelco Dolstra
'build-remote' is now executed via /proc/self/exe so it always works.
2022-02-25Remove std::string alias (for real this time)Eelco Dolstra
Also use std::string_view in a few more places.
2021-11-23"recursive-nix" system feature only with experimental featureJohn Ericson
2021-10-26Make experimental-features a proper typeregnat
Rather than having them plain strings scattered through the whole codebase, create an enum containing all the known experimental features. This means that - Nix can now `warn` when an unkwown experimental feature is passed (making it much nicer to spot typos and spot deprecated features) - It’s now easy to remove a feature altogether (once the feature isn’t experimental anymore or is dropped) by just removing the field for the enum and letting the compiler point us to all the now invalid usages of it.
2021-10-15Add another path where a Rosetta 2 configuration file is possibly locatedyvt
2021-09-14Advise using --extra-experimental-features instead of --experimental-featuresEelco Dolstra
Fixes #3737.
2021-03-26Fix some typosEelco Dolstra
Fixes #4671.
2021-02-25Don't crash when copying realisations to a non-ca remoteregnat
Rather throw a proper exception, and catch&log it on the client side
2021-02-24Initialize plugins after handling initial command line flagsShea Levy
This is technically a breaking change, since attempting to set plugin files after the first non-flag argument will now throw an error. This is acceptable given the relative lack of stability in a plugin interface and the need to tie the knot somewhere once plugins can actually define new subcommands.
2021-02-24Bail if plugin-files is set after plugins have been loaded.Shea Levy
We know the flag will be ignored but the user wants it to take effect.
2021-02-22Add x86_64 compute levels as additional system typesDaniël de Kok
When performing distributed builds of machine learning packages, it would be nice if builders without the required SIMD instructions can be excluded as build nodes. Since x86_64 has accumulated a large number of different instruction set extensions, listing all possible extensions would be unwieldy. AMD, Intel, Red Hat, and SUSE have recently defined four different microarchitecture levels that are now part of the x86-64 psABI supplement and will be used in glibc 2.33: https://gitlab.com/x86-psABIs/x86-64-ABI https://lwn.net/Articles/844831/ This change uses libcpuid to detect CPU features and then uses them to add the supported x86_64 levels to the additional system types. For example on a Ryzen 3700X: $ ~/aps/bin/nix -vv --version | grep "Additional system" Additional system types: i686-linux, x86_64-v1-linux, x86_64-v2-linux, x86_64-v3-linux
2021-01-08string2Int(): Return std::optionalEelco Dolstra
2020-12-04Use com.apple.oahd.plist for rosetta 2 detectionMatthew Bauer
2020-12-03Add extraPlatforms for Rosetta 2 macOSMatthew Bauer
macOS systems with ARM64 can utilize a translation layer at /Library/Apple/usr/libexec/oah to run x86_64 binaries. This change makes Nix recognize that and it to "extra-platforms". Note that there are two cases here since Nix could be built for either x86_64 or aarch64. In either case, we can switch to the other architecture. Unfortunately there is not a good way to prevent aarch64 binaries from being run in x86_64 contexts or vice versa - programs can always execute programs for the other architecture.
2020-10-29Generalize extra-* settingsEelco Dolstra
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.
2020-10-21Add NIX_CONFIG env var for applying nix.conf overridesChristian Kampka
2020-10-06Remove static variable name clashesEelco Dolstra
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...
2020-09-22Merge pull request #4038 from maljub01/masterEelco Dolstra
Add a nix.conf option for allowing a symlinked store
2020-09-21Serialize SandboxMode enum to string for JSONCole Helbling
Rather than showing an integer as the default, instead show the boolean referenced in the description. The nix.conf.5 manpage used to show "default: 0", which is unnecessarily opaque and confusing (doesn't 0 mean false, even though the default is true?); now it properly shows that the default is true.
2020-09-21abstractsettingtojson.hh -> abstract-setting-to-json.hhEelco Dolstra
2020-09-21Don't include nlohmann/json.hpp in globals.hhEelco Dolstra
This reduces compilation time by 207s. Issue #4045.
2020-09-21Update the variable name accordinglyMarwan Aljubeh
2020-09-18Add a nix.conf option for allowing a symlinked storeMarwan Aljubeh
2020-09-16Complete the `toJSON` instance for `Setting<T>`regnat
Don't let it just contain the value, but also the other fields of the setting (description, aliases, etc..)
2020-08-20Config: Use nlohmann/jsonEelco Dolstra
2020-07-03Shorten the path to the test rootregnat
Fix a socket length failure on the OSX builders
2020-05-12Show hint how to enable experimental featuresEelco Dolstra
2020-05-04Flag: Use designated initializersEelco Dolstra
2020-04-14add NIX_USER_CONF_FILESzimbatm
Motivation: maintain project-level configuration files. Document the whole situation a bit better so that it corresponds to the implementation, and add NIX_USER_CONF_FILES that allows overriding which user files Nix will load during startup.
2020-03-20sandbox: fix /bin/sh on catalinaDaiderd Jordan
Sadly 10.15 changed /bin/sh to a shim which executes bash, this means it can't be used anymore without also opening up the sandbox to allow bash. Failed to exec /bin/bash as variant for /bin/sh (1: Operation not permitted).
2020-03-20libstore: relax default sandbox-paths on darwinDaiderd Jordan
2020-01-13unbreak build without pchJohn Ericson
2019-12-21Disable use-sqlite-wal under WSLBrian McKenna
Before: $ nix-channel --update unpacking channels... warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy (SQLITE_PROTOCOL) warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy (SQLITE_PROTOCOL) warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy (SQLITE_PROTOCOL) warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy (SQLITE_PROTOCOL) warning: SQLite database '/nix/var/nix/db/db.sqlite' is busy (SQLITE_PROTOCOL) After: $ inst/bin/nix-channel --update unpacking channels... created 1 symlinks in user environment I've seen complaints that "sandbox" caused problems under WSL but I'm having no problems. I think recent changes could have fixed the issue.
2019-12-17Add priority setting to storesEelco Dolstra
This allows overriding the priority of substituters, e.g. $ nix-store --store ~/my-nix/ -r /nix/store/df3m4da96d84ljzxx4mygfshm1p0r2n3-geeqie-1.4 \ --substituters 'http://cache.nixos.org?priority=100 daemon?priority=10' Fixes #3264.
2019-12-02Merge remote-tracking branch 'origin/recursive-nix'Eelco Dolstra
2019-11-26Add feature to disable URL literalsEelco Dolstra
E.g. $ nix-build '<nixpkgs>' -A hello --experimental-features no-url-literals error: URL literals are disabled, at /nix/store/vsjamkzh15r3c779q2711az826hqgvzr-nixpkgs-20.03pre194957.bef773ed53f/nixpkgs/pkgs/top-level/all-packages.nix:1236:11 Helps with implementing https://github.com/NixOS/rfcs/pull/45.
2019-11-22getEnv(): Return std::optionalEelco Dolstra
This allows distinguishing between an empty value and no value.
2019-11-06Enable recursive Nix using a featureEelco Dolstra
Derivations that want to use recursion should now set requiredSystemFeatures = [ "recursive-nix" ]; to make the daemon socket appear. Also, Nix should be configured with "experimental-features = recursive-nix".
2019-10-21Add experimental-features settingEelco Dolstra
Experimental features are now opt-in. There is currently one experimental feature: "nix-command" (which enables the "nix" command. This will allow us to merge experimental features more quickly, without committing to supporting them indefinitely. Typical usage: $ nix build --experimental-features 'nix-command flakes' nixpkgs#hello (cherry picked from commit 8e478c234100cf03ea1b777d4bd42a9be7be9e8c, without the "flakes" feature)
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 20:25:56 +0000