1 files changed, 19 insertions, 12 deletions
diff --git a/setup.fish b/setup.fish
index 9bb4561..28e6f86 100644
--- a/setup.fish
+++ b/setup.fish
@@ -1,19 +1,26 @@
-curl -s https://ziglang.org/download/index.json -o index.json
-or exit 1
+if test -z $argv[1]
+    curl -s https://ziglang.org/download/index.json -o index.json
+    or exit 1
 
-set DLLINK (cat index.json | jq -r '.master ."x86_64-linux" .tarball')
-set SHASUM (cat index.json | jq -r '.master ."x86_64-linux" .shasum')
+    set DLLINK (cat index.json | jq -r '.master ."x86_64-linux" .tarball')
+    set SHASUM (cat index.json | jq -r '.master ."x86_64-linux" .shasum')
 
-rm -f index.json
+    rm -f index.json
 
-set TARBALL (echo $DLLINK  | awk -F '/' '{ print $NF }')
-set ZIGDIR  (echo $TARBALL | sed 's/.tar.xz//')
+    set TARBALL (echo $DLLINK  | awk -F '/' '{ print $NF }')
+    set ZIGDIR  (echo $TARBALL | sed 's/.tar.xz//')
 
-if ! test -d $ZIGDIR
-    wget -q --show-progress --no-clobber $DLLINK
-    and shasum -a 256 -c (echo "$SHASUM  $TARBALL" | psub)
-    and tar xf $TARBALL
-    or  exit 2
+    if ! test -d $ZIGDIR
+        wget -q --show-progress --no-clobber $DLLINK
+        and shasum -a 256 -c (echo "$SHASUM  $TARBALL" | psub)
+        and tar xf $TARBALL
+        or  exit 2
+    end
+else
+    set ZIGDIR $argv[1]
+
+    test -d $ZIGDIR
+    or exit 3
 end
 
 echo "SETUP $ZIGDIR"