ENH: Support symlinks like .local/bin/npm -> sandbox-run

Author: kernc

sandbox-run

@@ -6,10 +6,17 @@ command -v bwrap >/dev/null || { command bwrap; echo 'Error: Missing /usr/bin/bw
 
 # Support symlinks e.g. ./local/bin/npm -> /usr/bin/sandbox-run
 bin="$0"
-if [ "${bin##*/}" = 'sandbox-run' ]; then
+if [ "${bin##*/}" != 'sandbox-run' ]; then
+    IFS=:
+    for d in ${PATH:-/usr/local/bin:/usr/bin:/bin}; do
+        p="$d/${0##*/}"
+        [ "$0" != "$p" ] && [ -x "$p" ] && bin="$p" && break || true
+    done
+    unset IFS
+else
     if [ "$#" -eq 0 ]
     then echo "Usage: ${0##*/} ARG..."; exit 1
-    else bin="${1:-}"; shift
+    else bin="$1"; shift
     fi
 fi
 

tests/test-symlinks.sh

@@ -0,0 +1,10 @@
+#!/bin/sh
+set -eu
+
+. "${0%/*}/_init.sh"
+
+ln -s "$(command -v sandbox-run)" npm
+PATH="$(pwd):$PATH"
+
+npm --version |& grep -q 'sandbox-run'
+npm --help |& grep -q 'install'