scripts/Create-CkSumPatch

   1 #!/bin/bash
   2 #
   3 # --- T2-COPYRIGHT-NOTE-BEGIN ---
   4 # This copyright note is auto-generated by scripts/Create-CopyPatch.
   5 #
   6 # T2 SDE: scripts/Create-CkSumPatch
   7 # Copyright (C) 2004 - 2020 The T2 SDE Project
   8 # Copyright (C) 1998 - 2003 ROCK Linux Project
   9 #
  10 # More information can be found in the files COPYING and README.
  11 #
  12 # This program is free software; you can redistribute it and/or modify
  13 # it under the terms of the GNU General Public License as published by
  14 # the Free Software Foundation; version 2 of the License. A copy of the
  15 # GNU General Public License can be found in the file COPYING.
  16 # --- T2-COPYRIGHT-NOTE-END ---
  17
  18 . scripts/functions.in
  19 override=0
  20 files=''
  21
  22 usage()
  23 {
  24         echo "Usage:"
  25         echo "scripts/Create-CkSumPatch [options] <package-name>"
  26         echo "scripts/Create-CkSumPatch [options] <target-name>"
  27         echo "scripts/Create-CkSumPatch [options] <file-path>"
  28         echo " "
  29         echo "Options:"
  30         echo "    -override        Create new cksum if old one should be valid."
  31         echo "    -help            This."
  32 }
  33
  34 while [ "$1" ]; do
  35     case "$1" in
  36         -override)   override=1; shift ;;
  37         -repository) files="$files `echo package/$2/*/*.desc`"; shift; shift ;;
  38         -*|-help)    usage; exit
  39                      ;;
  40         target/*)    files="$files $arg"; shift ;;
  41         *.desc)      files="$files $arg"; shift ;;
  42         *)           files="$files `echo package/*/$1/$1.desc`"; shift ;;
  43     esac
  44 done
  45
  46 # cksum_file path-to-desc-or-target-file
  47 cksum_file() {
  48     case "$1" in
  49         target/*)
  50             has_D='cat'
  51             sedscript='s,^[^ ]*  *$file,$newcksum $file,'
  52             ;;
  53         *.desc)
  54             has_D='fgrep "[D]" | sed "s/[[]D[^ ]*//"'
  55             sedscript='s,\[D\]  *[^ ]*  *$file,[D] $newcksum $file,'
  56             ;;
  57         *)
  58             echo "!!! File type not recognized" >&2
  59             return -1
  60     esac
  61
  62     if [ ! -f "$1" ]; then
  63         echo "!!! File not found: $1" >&2
  64         return -1
  65     fi
  66
  67     cp $1 /tmp/$$
  68     eval "egrep -v '^#' $1 | $has_D" | while read cksum file url args; do
  69         [ "$cksum" = 'X' ] && continue
  70         [ "$cksum" != '0' -a "$override" = '0' ] && continue
  71
  72         gzfile=`source_file cksum $file $url $flags`
  73         bzfile="`bz2filename "$gzfile"`"
  74         if [ ! -f "$bzfile" ]; then
  75             echo "!!! File not present: $bzfile" >&2
  76             continue
  77         fi
  78
  79         local ck="sha224"
  80         if [[ "$bzfile" = *.zst ]] || [[ "$bzfile" = *.tzst ]]; then
  81                 echo -n "$bzfile (zstd): " >&2
  82                 newcksum="`zstd -d < $bzfile | ${ck}sum | cut -f1 -d' '`"
  83         else
  84                 echo -n "$gzfile (raw): " >&2
  85                 newcksum="`${ck}sum $gzfile | cut -f1 -d' '`"
  86         fi
  87         newcksum="$newcksum" # also support explict {$ck}
  88         echo "$newcksum" >&2
  89
  90         if [ "$cksum" != 0 -a "$cksum" != "$newcksum" ]; then
  91             echo "!!! Checksum of $file changed (was $cksum)." >&2
  92         fi
  93
  94         eval "sed \"$sedscript\" -i /tmp/$$"
  95     done
  96
  97     diff -u ./$1 /tmp/$$
  98     rm -f /tmp/$$
  99 }
 100
 101 echo "Creating cksum.patch ..." >&2
 102
 103 for f in $files; do
 104     cksum_file $f
 105 done