copy-firmware.sh

   1 #!/bin/sh
   2 # SPDX-License-Identifier: GPL-2.0
   3 #
   4 # Copy firmware files based on WHENCE list
   5 #
   6
   7 verbose=:
   8 prune=no
   9
  10 while test $# -gt 0; do
  11     case $1 in
  12         -v | --verbose)
  13             verbose=echo
  14             shift
  15             ;;
  16
  17         -P | --prune)
  18             prune=yes
  19             shift
  20             ;;
  21
  22         *)
  23             if test "x$destdir" != "x"; then
  24                 echo "ERROR: unknown command-line options: $@"
  25                 exit 1
  26             fi
  27
  28             destdir="$1"
  29             shift
  30             ;;
  31     esac
  32 done
  33
  34 grep '^File:' WHENCE | sed -e's/^File: *//g' -e's/"//g' | while read f; do
  35     test -f "$f" || continue
  36     $verbose "copying file $f"
  37     mkdir -p $destdir/$(dirname "$f")
  38     cp -d "$f" $destdir/"$f"
  39 done
  40
  41 grep -E '^Link:' WHENCE | sed -e's/^Link: *//g' -e's/-> //g' | while read f d; do
  42     if test -L "$f"; then
  43         test -f "$destdir/$f" && continue
  44         $verbose "copying link $f"
  45         mkdir -p $destdir/$(dirname "$f")
  46         cp -d "$f" $destdir/"$f"
  47
  48         if test "x$d" != "x"; then
  49             target=`readlink "$f"`
  50
  51             if test "x$target" != "x$d"; then
  52                 $verbose "WARNING: inconsistent symlink target: $target != $d"
  53             else
  54                 if test "x$prune" != "xyes"; then
  55                     $verbose "WARNING: unneeded symlink detected: $f"
  56                 else
  57                     $verbose "WARNING: pruning unneeded symlink $f"
  58                     rm -f "$f"
  59                 fi
  60             fi
  61         else
  62             $verbose "WARNING: missing target for symlink $f"
  63         fi
  64     else
  65         $verbose "creating link $f -> $d"
  66         mkdir -p $destdir/$(dirname "$f")
  67         ln -sf "$d" "$destdir/$f"
  68     fi
  69 done
  70
  71 exit 0
  72
  73 # vim: et sw=4 sts=4 ts=4