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itstool: use wrapPython to fix double shebang on macOS

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This commit is contained in:
Jörg Thalheim 2020-03-17 15:56:04 +00:00 committed by Frederik Rietdijk
parent da7ac56575
commit 2bec129116
1 changed files with 5 additions and 15 deletions
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20
pkgs/development/tools/misc/itstool/default.nix
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@ -8,22 +8,12 @@ stdenv.mkDerivation rec {
sha256 = "1acjgf8zlyk7qckdk19iqaca4jcmywd7vxjbcs1mm6kaf8icqcv2";
};
buildInputs = [ (python3.withPackages(ps: with ps; [ libxml2 ])) ];
pythonPath = [ python3.pkgs.libxml2 ];
buildInputs = [ python3 python3.pkgs.libxml2 ];
nativeBuildInputs = [ python3.pkgs.wrapPython ];
# bin/itstool's shebang is "#!${python3.withPackages(...)/bin/python} -s"
# withPackages' shebang is "#!#{bash}/bin/bash -e
#
# macOS won't allow the target of a shebang to be an interpreted script,
# causing bin/itstool to get interpreted as bash.
#
# By prefixing /usr/bin/env to the shebang, we have env fork/exec the python
# wrapper, which is perfectly happy to execute an interpreted script.
#
# However, we don't want to do this on Linux, which only allows one argument
# in a shebang.
postFixup = lib.optionalString stdenv.isDarwin ''
substituteInPlace $out/bin/itstool \
--replace "#!/" "#!/usr/bin/env /"
postFixup = ''
wrapPythonPrograms
'';
meta = {