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nixpkgs/modules/system/etc/make-etc.sh
Eelco Dolstra ed1bc1e180 * Handle the case where a symlink in /etc needs to change into a
directory.  This happened with /etc/polkit-1, which used to be a
  symlink to /etc/static/polkit-1, which was itself a symlink but now
  is a directory.  Not handling this correctly led to /etc/static
  being clobbered with symlinks pointing to themselves.

svn path=/nixos/trunk/; revision=29061
2011-09-06 12:32:07 +00:00

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source $stdenv/setup
ensureDir $out/etc
sources_=($sources)
targets_=($targets)
modes_=($modes)
for ((i = 0; i < ${#targets_[@]}; i++)); do
ensureDir $out/etc/$(dirname ${targets_[$i]})
if ! test -e $out/etc/${targets_[$i]}; then
ln -s ${sources_[$i]} $out/etc/${targets_[$i]};
else
echo "Duplicate entry ${targets_[$i]} -> ${sources_[$i]}"
if test "$(readlink $out/etc/${targets_[$i]})" != "${sources_[$i]}"; then
echo "Mismatched duplicate entry $(readlink $out/etc/${targets_[$i]}) <-> ${sources_[$i]}"
exit 1
fi
fi;
if test "${modes_[$i]}" != symlink; then
echo "${modes_[$i]}" > $out/etc/${targets_[$i]}.mode
fi
done