SKIP_BUILD env var works better

1 files changed, 19 insertions, 2 deletions

diff --git a/fsmgr b/fsmgr
index 9ee4011..6d9079e 100755
--- a/fsmgr
+++ b/fsmgr
@@ -1,8 +1,25 @@
 #!/bin/sh
 die() { printf 'Error: %s\n' "$*" >&2; exit 1; }
-root=$(stack path --local-install-root) || die "subcommand failed: 'stack path'"
+root=$(stack path --allow-different-user --local-install-root) || die "subcommand failed: 'stack path'"
 bin=$root/bin/fsmgr
-[ "$SKIP_BUILD" ] || stack build
+if [ "$SKIP_BUILD" ]
+then
+    if ! bin=$(which fsmgr)
+    then
+        prev=
+        for bin in .stack-work/install/*/*/*/bin/fsmgr
+        do
+            if [ "$prev" ] && [ "$prev" -nt "$bin" ]
+            then
+                bin=$prev
+            else
+                prev=$bin
+            fi
+        done
+    fi
+else
+    stack build
+fi
 case "$(id -u)" in
     0) exec "$bin" "$@" ;;
     *) exec sudo -- "$bin" "$@" ;;