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Updated help text

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This commit is contained in:
Michael Raskin 2008-06-12 17:45:38 +00:00
parent 4532e4b90d
commit ce85b55cf0
1 changed files with 15 additions and 6 deletions
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21
scripts/nix-reduce-build.in
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@ -3,10 +3,19 @@
WORKING_DIRECTORY=$(mktemp -d "${TMPDIR:-/tmp}"/nix-reduce-build-XXXXXX); WORKING_DIRECTORY=$(mktemp -d "${TMPDIR:-/tmp}"/nix-reduce-build-XXXXXX);
cd "$WORKING_DIRECTORY"; cd "$WORKING_DIRECTORY";
if test -z "$1" ; then if test -z "$1" || test "a--help" = "a$1" ; then
echo 'nix-reduce-build (paths or Nix expressions) -- (logins at remote computers)' >&2 echo 'nix-reduce-build (paths or Nix expressions) -- (package sources)' >&2
echo As in: >&2 echo As in: >&2
echo nix-reduce-build /etc/nixos/nixos -- user@somewhere.nowhere.example.org >&2 echo nix-reduce-build /etc/nixos/nixos -- ssh://user@somewhere.nowhere.example.org >&2
echo nix-reduce-build /etc/nixos/nixos -- \\
echo " " \''http://somewhere.nowhere.example.org/nix/nix-http-export.cgi?needed_path='\' >&2
echo " store path name will be added into the end of the URL" >&2
echo nix-reduce-build /etc/nixos/nixos -- file://home/user/nar/ >&2
echo " that should be a directory where gzipped 'nix-store --export' ">&2
echo " files are located (they should have .nar.gz extension)" >&2
echo " Or all together: " >&2
echo -e nix-reduce-build /expr.nix /e2.nix -- \\\\\\\n\
" ssh://a@b.example.com http://n.example.com/get-nar?q= file://nar/" >&2
exit; exit;
fi; fi;
@ -62,17 +71,17 @@ for i in "$@"; do
filePath="${i#file:/}"; filePath="${i#file:/}";
if [ "$i" != "$sshHost" ]; then if [ "$i" != "$sshHost" ]; then
cat needed-paths | while read; do cat needed-paths | while read; do
echo "Getting $REPLY and its closure over ssh" echo "Getting $REPLY and its closure over ssh" >&2
nix-copy-closure --from "$sshHost" --gzip "$REPLY" </dev/null || true; nix-copy-closure --from "$sshHost" --gzip "$REPLY" </dev/null || true;
done; done;
elif [ "$i" != "$httpHost" ] || [ "$i" != "$httpsHost" ]; then elif [ "$i" != "$httpHost" ] || [ "$i" != "$httpsHost" ]; then
cat needed-paths | while read; do cat needed-paths | while read; do
echo "Getting $REPLY over http/https" echo "Getting $REPLY over http/https" >&2
curl ${BAD_CERTIFICATE:+-k} -L "$i${REPLY##*/}" | gunzip | nix-store --import; curl ${BAD_CERTIFICATE:+-k} -L "$i${REPLY##*/}" | gunzip | nix-store --import;
done; done;
elif [ "$i" != "filePath" ] ; then elif [ "$i" != "filePath" ] ; then
cat needed-paths | while read; do cat needed-paths | while read; do
echo "Installing $REPLY from file" echo "Installing $REPLY from file" >&2
gunzip < "$filePath/${REPLY##*/}".nar.gz | nix-store --import; gunzip < "$filePath/${REPLY##*/}".nar.gz | nix-store --import;
done; done;
fi; fi;