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if test -z "$out"; then
out="$OUT"
initialPath="$INITIALPATH"
shell="$SHELL"
fi
setupPath=
for i in $initialPath; do
setupPath=$setupPath${setupPath:+:}$i
done
PATH=$setupPath
export PATH
mkdir $out
cat > $out/setup <<EOF
PATH=$setupPath
export PATH
SHELL=$shell
export SHELL
# make fetchurl usable
header() {
echo "\$1"
}
stopNest() {
echo "Nothing to do"
}
# !!! Awful copy&paste.
substitute() {
local input="\$1"
local output="\$2"
local -a params=("\$@")
local sedScript=\$NIX_BUILD_TOP/.sedargs
rm -f \$sedScript
touch \$sedScript
local n p pattern replacement varName
for ((n = 2; n < \${#params[*]}; n += 1)); do
p=\${params[\$n]}
if test "\$p" = "--replace"; then
pattern=\${params[\$((n + 1))]}
replacement=\${params[\$((n + 2))]}
n=\$((n + 2))
echo "s^\$pattern^\$replacement^g" >> \$sedScript
sedArgs=("\${sedArgs[@]}" "-e" )
fi
if test "\$p" = "--subst-var"; then
varName=\${params[\$((n + 1))]}
n=\$((n + 1))
echo "s^@\${varName}@^\${!varName}^g" >> \$sedScript
fi
if test "\$p" = "--subst-var-by"; then
varName=\${params[\$((n + 1))]}
replacement=\${params[\$((n + 2))]}
n=\$((n + 2))
echo "s^@\${varName}@^\$replacement^g" >> \$sedScript
fi
done
sed -f \$sedScript < "\$input" > "\$output".tmp
if test -x "\$output"; then
chmod +x "\$output".tmp
fi
mv -f "\$output".tmp "\$output"
}
EOF
chmod +x $out/setup
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