Patch every `derivation` call in the bootsrap process to add it a
conditional `__contentAddressed` parameter.
That way, passing `contentAddressedByDefault` means that the entire
build closure of a system can be content addressed
Adding the hostSuffix to the end of the derivation's name is problematic
since some stuff, including user facing programs like nix-env rely on
the behavior of parseDrvName instead of pname and version.
builtins.parseDrvName currently thinks that the cross compilation target
added via hostSuffix is part of the version. This has the practical
consequence for example that nix-env would think a cross compiled
derivation would be an updated version of a native derivation of the
same package and version — breaking user's profiles.
We can easily prevent this by moving the hostSuffix in between pname and
version. In case name is passed to mkDerivation this is of course not
possible and we are forced to fall back to the old behavior.
This change could serve as a replacement for the migitation we
introduced with the -static appendix to pname in order to avoid
confusion between nix and nixStatic as outlined in the comment added
with this commit.
Support `mainProgram` as an attribute of `meta` for packages.
This is an attribute used by [`nix
run`](https://nixos.org/manual/nix/unstable/command-ref/new-cli/nix3-run.html#description)
to customize the main program of a package.
For example, `pkgs.neovim` provides a `/bin/nvim` executable which users
would (almost certainly) prefer `nix run` to execute instead of a
non-existing `/bin/neovim`.
Signed-off-by: Ana Hobden <operator@hoverbear.org>
Add a config field `contentAddressedByDefault` and an associated
environment variable `NIXPKGS_CA_BY_DEFAULT` to make every nixpkgs
derivation content-addressed by default
This was removed in e29b0da9c7, because
it was felt it was ambiguous whether isBSD should remove Darwin.
I think it should be reintroduced. Packages sometimes have their own
concepts of "is BSD" e.g. Lua, and these almost never include Darwin,
so let's keep Darwin excluded.
Without a way to say "is this BSD", one has to list all flavours of
BSD seperately, even though fundamentally they're still extremely
similar. I don't want to have to write the following!
stdenv.isFreeBSD || stdenv.isNetBSD || stdenv.isOpenBSD || stdenv.isDragonFlyBSD
Additionally, we've had stdenv.hostPlatform.isBSD this whole time, and
it hasn't hurt anything.
Unify the logic for constructing the name from pname and version and
modifying the name in case a host suffix needs to appended. This allows
us to modify the construction of name from pname and version without
having to duplicate it in two places.
4e9dc46dea re-enabled hardening for Musl,
which is good.
Though static builds for ARM fail in various ways
- cross armv7l static does not build
- cross aarch64 static produces segfaulting dynamically linked binaries
- native aarch64 static also produces segfaulting dynamically linked binaries
It seems that for native x86_64-linux, static builds are fine though.
This works around the issue by removing PIE from the hardening flags,
keeping all other hardening flags. This is an improvement (I think) from
before 4e9dc46d.
Fixes#114953
* stdenv/check-meta: change to allowlist and blocklist
* Update pkgs/stdenv/generic/check-meta.nix
Co-authored-by: Graham Christensen <graham@grahamc.com>
Since the deprecation is fairly recent, we should warn by default.
Also fix the wording of the comment: stdenv.lib will be removed for the 21.11
release, not just deprecated (as it already is deprecated).
The `platform` field is pointless nesting: it's just stuff that happens
to be defined together, and that should be an implementation detail.
This instead makes `linux-kernel` and `gcc` top level fields in platform
configs. They join `rustc` there [all are optional], which was put there
and not in `platform` in anticipation of a change like this.
`linux-kernel.arch` in particular also becomes `linuxArch`, to match the
other `*Arch`es.
The next step after is this to combine the *specific* machines from
`lib.systems.platforms` with `lib.systems.examples`, keeping just the
"multiplatform" ones for defaulting.
By exporting it, we always make the new directories available
to subprocesses, regardless of whether the environment
variable existed before `nix-shell` was invoked.
This avoids the scenario where strictDeps is off and cross-compiled
XDG_DATA_DIRS content is brought into the environment.
While probably harmless for data like manpages and completion scripts,
this would cause issues when XDG_DATA_DIRS is used to find executables
or plugins. The Qt framework is known to behave like this and might
have run into incompatibilities.
XDG_DATA_DIRS is to /share as PATH is to /bin.
It was defined as part of the XDG basedir specification.
https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html
While it originated from the X Desktop Group, it is not limited to
the X11 ecosystem, as evidenced by its use in bash-completion.
The removal of ` && -d "$pkg/bin"` is ok, because this optimization is
already performed by `addToSearchPath`.
This adds -frandom-seed to each compiler invocation in stdenv. The
object here is to make the compierl invocations produce the same output
every time they are called (for the same derivation). When the
-frandom-seed option is not set the compiler will use a combination of
random numbers (in GCC's case from /dev/urandom) and the durrent time to
produce a "random" input per file. This can (among other things) lead to
different ordering of symbols in the produced object files.
For reason of reproducibility we prefer having the same derivation
produce the exact same outputs. This is not a silver bullet but one way
to tame the compiler.
