mirror of
https://github.com/nix-community/dream2nix.git
synced 2024-11-26 22:31:39 +03:00
88 lines
1.7 KiB
Nix
88 lines
1.7 KiB
Nix
{
|
|
lib,
|
|
bash,
|
|
coreutils,
|
|
gawk,
|
|
path, # nixpkgs path
|
|
writeScript,
|
|
writeScriptBin,
|
|
...
|
|
}: let
|
|
# Docs at modules/flake-parts/writers.nix
|
|
writePureShellScript = PATH: script:
|
|
writeScript "script.sh" (mkScript PATH script);
|
|
|
|
# Docs at modules/flake-parts/writers.nix
|
|
writePureShellScriptBin = binName: PATH: script:
|
|
writeScriptBin binName (mkScript PATH script);
|
|
|
|
mkScript = PATH: script: ''
|
|
#!${bash}/bin/bash
|
|
set -Eeuo pipefail
|
|
|
|
export PATH="${lib.makeBinPath PATH}"
|
|
export NIX_PATH=nixpkgs=${path}
|
|
|
|
export TMPDIR=$(${coreutils}/bin/mktemp -d)
|
|
|
|
trap "${coreutils}/bin/chmod -R +w '$TMPDIR'; ${coreutils}/bin/rm -rf '$TMPDIR'" EXIT
|
|
|
|
if [ -z "''${IMPURE:-}" ]; then
|
|
${cleanEnv}
|
|
fi
|
|
|
|
${script}
|
|
'';
|
|
|
|
# list taken from nix source: src/nix-build/nix-build.cc
|
|
keepVars = lib.concatStringsSep " " [
|
|
"HOME"
|
|
"XDG_RUNTIME_DIR"
|
|
"USER"
|
|
"LOGNAME"
|
|
"DISPLAY"
|
|
"WAYLAND_DISPLAY"
|
|
"WAYLAND_SOCKET"
|
|
"PATH"
|
|
"TERM"
|
|
"IN_NIX_SHELL"
|
|
"NIX_SHELL_PRESERVE_PROMPT"
|
|
"TZ"
|
|
"PAGER"
|
|
"NIX_BUILD_SHELL"
|
|
"SHLVL"
|
|
"http_proxy"
|
|
"https_proxy"
|
|
"ftp_proxy"
|
|
"all_proxy"
|
|
"no_proxy"
|
|
|
|
# We want to keep out own variables as well
|
|
"out"
|
|
"IMPURE"
|
|
"KEEP_VARS"
|
|
"NIX_PATH"
|
|
"TMPDIR"
|
|
];
|
|
|
|
cleanEnv = ''
|
|
|
|
KEEP_VARS="''${KEEP_VARS:-}"
|
|
|
|
unsetVars=$(
|
|
${coreutils}/bin/comm \
|
|
<(${gawk}/bin/awk 'BEGIN{for(v in ENVIRON) print v}' | ${coreutils}/bin/cut -d = -f 1 | ${coreutils}/bin/sort) \
|
|
<(echo "${keepVars} $KEEP_VARS" | ${coreutils}/bin/tr " " "\n" | ${coreutils}/bin/sort) \
|
|
-2 \
|
|
-3
|
|
)
|
|
|
|
unset $unsetVars
|
|
'';
|
|
in {
|
|
inherit
|
|
writePureShellScript
|
|
writePureShellScriptBin
|
|
;
|
|
}
|