guix/scripts/nix-build.in
Eelco Dolstra a5ceb5bc0b * nix-build: default to `./default.nix' if no paths are specified.
So when using Nix as a build tool, you can just say `nix-build' and
  it will build the top-level derivation defined in `default.nix'.
2005-07-13 17:39:10 +00:00

70 lines
1.3 KiB
Plaintext

#! @shell@ -e
nixExpr=$1
extraArgs=
addDrvLink=0
addOutLink=1
trap 'rm -f ./.nix-build-tmp-*' EXIT
# Process the arguments.
exprs=
for i in "$@"; do
case "$i" in
--help)
echo "syntax: $0 [NIX-EXPR...]" >&2
exit 0
;;
--add-drv-link)
addDrvLink=1
;;
--no-link)
addOutLink=0
;;
-*)
extraArgs="$extraArgs $i"
;;
*)
exprs="$exprs $i"
;;
esac
done
if test -z "$exprs"; then
exprs="./default.nix"
fi
# Process the specified Nix expressions.
for i in $exprs; do
# Instantiate the Nix expression.
prefix=
if test "$addDrvLink" = 0; then prefix=.nix-build-tmp-; fi
storeExprs=$(@bindir@/nix-instantiate \
--add-root ./${prefix}derivation --indirect \
"$i")
for j in $storeExprs; do
echo "store expression is $(readlink "$j")" >&2
done
# Build the resulting store derivation.
prefix=
if test "$addOutLink" = 0; then prefix=.nix-build-tmp-; fi
outPaths=$(@bindir@/nix-store \
--add-root ./${prefix}result --indirect \
-rv $extraArgs $storeExprs)
for j in $outPaths; do
echo "$(readlink "$j")"
done
done