Add a setup hook for detecting $TMPDIR references in RPATHs and wrapper scripts

2017-05-04 20:23:57 +02:00
parent 3b8f8951db
commit 94d164dd7f
3 changed files with 54 additions and 0 deletions
@@ -199,6 +199,18 @@ isELF() {
    if [[ "$magic" =~ ELF ]]; then return 0; else return 1; fi
 }

+# Return success if the specified file is a script (i.e. starts with
+# "#!").
+isScript() {
+    local fn="$1"
+    local magic
+    if ! [ -x /bin/sh ]; then return 0; fi
+    exec {fd}< "$fn"
+    read -n 2 -u $fd magic
+    exec {fd}<&-
+    if [[ "$magic" =~ \#! ]]; then return 0; else return 1; fi
+}
+

 ######################################################################
 # Initialisation.