nixpkgs/pkgs/stdenv/generic/default-builder.sh

if [ -e "$NIX_ATTRS_SH_FILE" ]; then . "$NIX_ATTRS_SH_FILE"; elif [ -f .attrs.sh ]; then . .attrs.sh; fi

source $stdenv/setup
genericBuild
treewide: refactor `.attrs.sh` detection When specifying the `builder` attribute in `stdenv.mkDerivation`, this will be effectively transformed into builtins.derivation { builder = stdenv.shell; args = [ "-e" builder ]; } This also means that `default-builder.sh` is never sourced and as a result it's not guaranteed that `$NIX_ATTRS_SH_FILE` is set to a correct location[1]. Also, we need to source `.attrs.sh` to source `$stdenv`. So, the following is done now: * If `$NIX_ATTRS_SH_FILE` points to a correct location, then use it. Directly using `.attrs.sh` is problematic for `nix-shell(1)` usage (see previous commit for more context), so prefer the environment variable if possible. * Otherwise, if `.attrs.sh` exists, then use it. See [1] for when this can happen. * If neither applies, it can be assumed that `__structuredAttrs` is turned off and thus nothing needs to be done. [1] It's possible that it doesn't exist at all - in case of Nix 2.3 or it can point to a wrong location on older Nix versions with a bug in `__structuredAttrs`. 2023-09-28 13:09:26 +00:00			`if [ -e "$NIX_ATTRS_SH_FILE" ]; then . "$NIX_ATTRS_SH_FILE"; elif [ -f .attrs.sh ]; then . .attrs.sh; fi`
stdenv: support opt-in __structuredAttrs Co-authored-by: Robin Gloster <mail@glob.in> stdenv: print message if structuredAttrs is enabled stdenv: add _append reduces the chance of a user doing it wrong fix nix develop issue output hooks don't work yet in nix develop though making $outputs be the same on non-structuredAttrs and structuredAttrs is too much trouble. lets instead make a function that gets the output names reading environment file '/nix/store/2x7m69a2sm2kh0r6v0q5s9z1dh41m4xf-xz-5.2.5-env-bin' nix: src/nix/develop.cc:299: std::string Common::makeRcScript(nix::ref<nix::Store>, const BuildEnvironment&, const Path&): Assertion `outputs != buildEnvironment.vars.end()' failed. use a function to get all output names instead of using $outputs copy env functionality from https://github.com/NixOS/nixpkgs/pull/76732/commits 2022-05-31 21:34:59 +00:00
* "." -> "source". svn path=/nixpkgs/trunk/; revision=4335 2005-12-05 14:11:09 +00:00			`source $stdenv/setup`
* Don't strip debug info on Darwin, otherwise links by libtool fail ("/usr/bin/ld: can't use -s with -r (resulting file would not be relocatable)"). * Since stdenv/generic had to be modified for this, I forked it in situ. This should be merged later. svn path=/nixpkgs/trunk/; revision=1121 2004-07-02 10:05:53 +00:00			`genericBuild`