Reacting on xorriso ifailure in pipe test of releng/auto_isocontent

libisoburn/trunk/releng/auto_isocontent

@@ -94,6 +94,20 @@ is_valid_iso9660() {
  fi
 }
 
+# Retrieve and evaluate return value of command run under return_wrapper
+check_xorriso_return() {
+ ret=$(cat "$return_value_file")
+ rm "$return_value_file"
+ if test "$ret" = 0
+ then
+   return 0
+ fi
+ failure=1
+ echo
+ echo "FAIL : ${SELF} : xorriso run exited with value $ret"
+ return 1
+}
+
 # Create test file and find out whether ACLs and/or xattr are available.
 #
 # Users known on GNU/Linux and FreeBSD: root games daemon man
@@ -198,14 +212,19 @@ echo
 ls -l "$on_disk"/*
 
 echo -e "\n${SELF}: Producing simple image via -o" >&2
-"$xorriso" -as mkisofs "$on_disk" -o      "$workdir"/image_minus_o.iso
+"$xorriso" -as mkisofs "$on_disk" -o "$workdir"/image_minus_o.iso
 is_valid_iso9660                          "$workdir"/image_minus_o.iso
+
 echo -e "\n${SELF}: Producing simple image via redirect" >&2
 "$xorriso" -as mkisofs "$on_disk" >       "$workdir"/image_redirected.iso
 is_valid_iso9660                          "$workdir"/image_redirected.iso
+
 echo -e "\n${SELF}: Producing simple image via pipe" >&2
-"$xorriso" -as mkisofs "$on_disk" | cat > "$workdir"/image_piped.iso
+return_wrapper "$xorriso" -as mkisofs "$on_disk" | \
+               cat > "$workdir"/image_piped.iso
+check_xorriso_return
 is_valid_iso9660                          "$workdir"/image_piped.iso
+
 echo -e "\n${SELF}: Producing simple image with for_backup/update_r/hardlinks" >&2
 "$xorriso" \
   $report_about \