mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-30 01:20:40 +00:00
38 lines
1.6 KiB
Plaintext
38 lines
1.6 KiB
Plaintext
# Nix with sandboxing requires every path used at build time be
|
|
# explicitly declared. If we simply passed in the paths, they
|
|
# would be copied in as sources. Using builtins.storePath we're
|
|
# able to tell Nix that, no, in fact, treat these not as sources
|
|
# to copy, but instead of a regular store path.
|
|
#
|
|
# Include the explicit closure, too, otherwise we'll get mysterious
|
|
# "file not found" errors due to the glibc interpreter being
|
|
# missing.
|
|
let
|
|
# Magic inspired by Nix's config.nix:
|
|
# https://github.com/NixOS/nix/blob/f9a2ea44867cd1dbb408bca4df0ced806137b7f7/corepkgs/config.nix.in#L23
|
|
#
|
|
# If the dependency is in the Nix store we're using, refer to
|
|
# it as a literal store path. If it isn't, refer to it "normally".
|
|
#
|
|
# This makes sandboxing happy when in a nix-build, and the
|
|
# evaluation happy when in a «cargo build».
|
|
tools_build_host = @tools_build_host@;
|
|
|
|
# Compare the stringified version of the tools_build_host Nix store
|
|
# path to the evaluator's stringified Nix store path. Otherwise,
|
|
# Nix will read the sources in to the /nix/store, and, well,
|
|
# you can only copy the /nix/store in to the /nix/store so many
|
|
# times before you run out of disk space.
|
|
dep = if ("${toString (dirOf tools_build_host)}" == "${toString builtins.storeDir}")
|
|
then (builtins.trace "using storePath" builtins.storePath)
|
|
else (builtins.trace "using toString" toString) # assume we have no sandboxing
|
|
;
|
|
|
|
tools = dep tools_build_host;
|
|
|
|
in {
|
|
path = "${tools}/bin";
|
|
builder = "${tools}/bin/bash";
|
|
closure = import @runtime_closure_list@ { inherit dep; };
|
|
}
|