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{ stdenv, runCommand }:
let
bad-shebang = stdenv.mkDerivation {
name = "bad-shebang";
dontUnpack = true;
installPhase = ''
mkdir -p $out/bin
echo "#!/bin/sh" > $out/bin/test
echo "echo -n hello" >> $out/bin/test
chmod +x $out/bin/test
'';
};
in runCommand "patch-shebangs-test" {
passthru = { inherit bad-shebang; };
meta.platforms = stdenv.lib.platforms.all;
} ''
printf "checking whether patchShebangs works properly... ">&2
if ! grep -q '^#!/bin/sh' ${bad-shebang}/bin/test; then
echo "yes" >&2
touch $out
else
echo "no" >&2
exit 1
fi
''
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