scripts/Create-CkSumPatch

   1 #!/usr/bin/env bash
   2 #
   3 # --- T2-COPYRIGHT-NOTE-BEGIN ---
   4 # T2 SDE: scripts/Create-CkSumPatch
   5 # Copyright (C) 2004 - 2023 The T2 SDE Project
   6 # Copyright (C) 1998 - 2003 ROCK Linux Project
   7 #
   8 # This Copyright note is generated by scripts/Create-CopyPatch,
   9 # more information can be found in the files COPYING and README.
  10 #
  11 # This program is free software; you can redistribute it and/or modify
  12 # it under the terms of the GNU General Public License version 2.
  13 # --- T2-COPYRIGHT-NOTE-END ---
  14
  15 . scripts/functions.in
  16 override=0
  17 files=''
  18
  19 usage() {
  20         echo "Usage:"
  21         echo "scripts/Create-CkSumPatch [options] <package-name>"
  22         echo "scripts/Create-CkSumPatch [options] <target-name>"
  23         echo "scripts/Create-CkSumPatch [options] <file-path>"
  24         echo " "
  25         echo "Options:"
  26         echo "    -override        Create new cksum if old one should be valid."
  27         echo "    -help            This."
  28 }
  29
  30 while [ "$1" ]; do
  31     case "$1" in
  32         -override)   override=1; shift ;;
  33         -repository) files="$files `echo package/$2/*/*.desc`"; shift; shift ;;
  34         -*|-help)    usage; exit ;;
  35         *.desc|target/*)    files="$files $1"; shift ;;
  36         *)           files="$files `echo package/*/$1/$1.desc`"; shift ;;
  37     esac
  38 done
  39
  40 # cksum_file path-to-desc-or-target-file
  41 cksum_file() {
  42     case "$1" in
  43         target/*)
  44             has_D='cat'
  45             sedscript='s,^[^ ]*  *$file,$newcksum $file,'
  46             ;;
  47         *.desc)
  48             has_D='fgrep "[D]" | sed "s/[[]D[^ ]*//"'
  49             sedscript='s@\[D\]  *[^ ]*  *$file@[D] $newcksum $file@'
  50             ;;
  51         *)
  52             echo "!!! File type not recognized" >&2
  53             return -1
  54     esac
  55
  56     if [ ! -f "$1" ]; then
  57         echo "!!! File not found: $1" >&2
  58         return -1
  59     fi
  60
  61     cp $1 /tmp/$$
  62     eval "egrep -v '^#' $1 | $has_D" | while read cksum file url args; do
  63         [ "$cksum" = 'X' ] && continue
  64         [ "$cksum" != '0' -a "$override" = '0' ] && continue
  65
  66         gzfile=`source_file cksum $file $url $flags`
  67         if [ ! -f "$gzfile" ]; then
  68             echo "!!! File not present: $gzfile" >&2
  69             continue
  70         fi
  71
  72         local ck="sha224"
  73         local cksum2=${ck}sum
  74         if ! type -p $cksum2 > /dev/null; then
  75             cksum2=${cksum2#sha} cksum2=${cksum2%sum}
  76             cksum2="shasum -a $cksum2"
  77         fi
  78
  79         local compressor="$(get_compressor "$gzfile")"
  80         if [ "$compressor" ]; then
  81                 echo -n "$gzfile (${compressor%% *}): " >&2
  82                 newcksum="`$compressor < $gzfile | $cksum2 | cut -f1 -d' '`"
  83         else
  84                 echo -n "$gzfile (raw): " >&2
  85                 newcksum="`$cksum2 $gzfile | cut -f1 -d' '`"
  86         fi
  87         newcksum="$newcksum" # also support explict {$ck}
  88         echo "$newcksum" >&2
  89
  90         if [ "$cksum" != 0 -a "$cksum" != "$newcksum" ]; then
  91             echo "!!! Checksum of $file changed (was $cksum)." >&2
  92         fi
  93
  94         eval "sed \"$sedscript\" -i /tmp/$$"
  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