How much would have to be rebuild when using this reimplementation of
nukeReferences ?
It only replaces hashes beeing 32 characters long. That's why it's more
correct. also using "$@" is better than using $* because it doesn't
depend on IFS.. and $* doesn't handle filepaths containing spaces.
replacement:
nukeReferences = writeTextFile {
name = "nuke-references"; executable = true; destination =
"/bin/nuke-refs";
text = ''
#! $SHELL -e
exec sed -i
's|/nix/store/[a-z0-9]\{32\}-|/nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-|g'
"$@" '';
};
is now:
derivation running this builder.sh
source $stdenv/setup
ensureDir $out/bin
cat > $out/bin/nuke-refs <<EOF
#! $SHELL -e
for i in \$*; do
cat \$i | sed
"s|/nix/store/[a-z0-9]*-|/nix/store/eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee-|g" >
\$i.tmp
if test -x \$i; then chmod +x \$i.tmp; fi
mv \$i.tmp \$i
done
EOF
chmod +x $out/bin/nuke-refs
Marc Weber
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