debian/bug-script

   1 #!/bin/sh
   2
   3 get_vendor()
   4 {
   5   local origin="$DPKG_ROOT/etc/dpkg/origins/default"
   6   local vendor
   7
   8   if [ -n "$DEB_VENDOR" ]; then
   9     vendor="$DEB_VENDOR"
  10   elif [ -e "$origin" ]; then
  11     vendor=$(sed -ne 's/^Vendor: *\([^ ]\+\) */\1/p' "$origin" | tr A-Z a-z)
  12   fi
  13
  14   echo "${vendor:-default}"
  15 }
  16
  17 check_merged_usr_via_aliased_dirs()
  18 {
  19   local vendor
  20
  21   vendor=$(get_vendor)
  22
  23   case "$vendor" in
  24   debian)
  25     # In Debian some people have gotten so offended by the following _warning_
  26     # that they have resorted to bullying and abuse. Life's too short, sorry.
  27     return
  28     ;;
  29   ubuntu)
  30     # Ubuntu does not seem interested in it.
  31     return
  32     ;;
  33   esac
  34
  35   for d in /bin /sbin /lib /lib32 /libo32 /libx32 /lib64; do
  36     linkname="$(readlink $d)"
  37     if [ "$linkname" = "usr$d" ] || [ "$linkname" = "/usr$d" ]; then
  38       echo "This system uses merged-usr-via-aliased-dirs, going behind dpkg's" >&3
  39       echo "back, breaking its core assumptions. This can cause silent file" >&3
  40       echo "overwrites and disappearances, and its general tools misbehavior." >&3
  41       echo "See <https://wiki.debian.org/Teams/Dpkg/FAQ#broken-usrmerge>." >&3
  42       break
  43     fi
  44   done
  45 }
  46
  47 check_merged_usr_via_aliased_dirs