Fix discovering executable files on macOS

.github/workflows/scandir.yml

@@ -31,11 +31,15 @@ jobs:
 
     - name: Verify check
       run: |
-        expect="testfiles/scandir/run[[:space:]]me.bash"
+        expect1="testfiles/scandir/run[[:space:]]me.bash"
+        expect2="testfiles/scandir/exec"
         notexpect="testfiles/test.bash"
 
-        if [[ ! "${{ steps.one.outputs.files }}" =~ $expect ]];then
-          echo "::error:: Expected file $expect not found in ${{ steps.one.outputs.files }}"
+        if [[ ! "${{ steps.one.outputs.files }}" =~ $expect1 ]];then
+          echo "::error:: Expected file $expect1 not found in ${{ steps.one.outputs.files }}"
+          exit 1
+        elif [[ ! "${{ steps.one.outputs.files }}" =~ $expect2 ]];then
+          echo "::error:: Expected file $expect2 not found in ${{ steps.one.outputs.files }}"
           exit 1
         elif [[ "${{ steps.one.outputs.files }}" =~ $notexpect ]];then
           echo "::error:: Expected file $notexpect found in ${{ steps.one.outputs.files }}"

action.yaml

@@ -195,12 +195,16 @@ runs:
             ')' \
             -print0)
 
+        perm_executable="/111"
+        # BSD find on macOS does not support the slash syntax for permissions.
+        [ "$(uname -s)" = "Darwin" ] && perm_executable="+111"
+
         while IFS= read -r -d '' file; do
           head -n1 "$file" | grep -Eqs "$shebangregex" || continue
           filepaths+=("$file")
         done < <(find "${INPUT_SCANDIR}" \
             ${INPUT_EXCLUDE_ARGS} \
-            -type f ! -name '*.*' -perm /111 \
+            -type f ! -name '*.*' -perm "$perm_executable" \
             -print0)
 
         if [[ -n "${INPUT_CHECK_TOGETHER}" ]]; then

testfiles/scandir/exec

@@ -0,0 +1,3 @@
+#!/usr/bin/env bash
+
+echo "I am executable"