contrib/reghunt/bin/gcc-svn-ids

   1 #! /bin/sh
   2
   3 # Convert one kind of changeset identifier to another.
   4 #
   5 # Usage: gcc-svn-ids -f from_kind -t to_kind id
   6 #
   7 # Where from_kind is one of:
   8 #   index   index into the changeset list used by the reghunt tools
   9 #   rev     is the Subversion revision name
  10 # and to_kind is one of:
  11 #   index   index into the changeset list used by the reghunt tools
  12 #   rev     is the Subversion revision name
  13 #   date    expanded UTC date string
  14 #   branch  the branch, or "trunk" for mainline
  15 #   author  the person who checked in the patch
  16
  17 errmsg () {
  18   echo $1 1>&2
  19 }
  20
  21 usage () {
  22   echo 'cvs_ids -f kind -t kind id' 1>&2
  23   echo '   where from_kind is index or rev' 1>&2
  24   echo '   and to_kind is index, rev, date, author, or branch' 1>&2
  25   echo "error"
  26   exit 1
  27 }
  28
  29 if [ "x${REG_CHANGESET_LIST}" = "x" ]; then
  30   errmsg "REG_CHANGESET_LIST is not defined"
  31   echo "error"
  32   exit 1
  33 fi
  34
  35 if [ ! -f ${REG_CHANGESET_LIST} ]; then
  36   errmsg "changeset list ${REG_CHANGESET_LIST} does not exist"
  37   echo "error"
  38   exit 1
  39 fi
  40
  41 # Use a shorter name here.
  42 LIST=${REG_CHANGESET_LIST}
  43
  44 while getopts "f:t:" ARG; do
  45   case ${ARG} in
  46   f) FROM_KIND="${OPTARG}";;
  47   t) TO_KIND="${OPTARG}";;
  48   h) usage;;
  49   *) errmsg "unrecognized option: ${ARG}";
  50      usage;;
  51   esac
  52 done
  53 shift `expr ${OPTIND} - 1`
  54
  55 if [ $# -eq 0 ]; then
  56   errmsg "too few arguments, ID is missing"
  57   usage
  58 fi
  59 if [ $# -gt 1 ]; then
  60   errmsg "unexpected arguments: $*"
  61   usage
  62 fi
  63 ID="$1"
  64
  65 case ${FROM_KIND} in
  66 index)  LINE=`awk -F '|' -v id="${ID}" '{if ($1 == id) print }' < ${LIST}`;;
  67 rev)    LINE=`awk -F '|' -v id="${ID}" '{if ($2 == id) print }' < ${LIST}`;;
  68 *)      errmsg "unrecognized FROM kind: ${FROM_KIND}";
  69         usage;;
  70 esac
  71
  72 if [ "x${LINE}" = "x" ]; then
  73   errmsg "no entry found for ${FROM_KIND} = ${ID}"
  74   echo "error"
  75   exit 1
  76 fi
  77
  78 case ${TO_KIND} in
  79 index)  TO_ID="`echo ${LINE} | awk -F '|' '{ print $1 }'`";;
  80 rev)    TO_ID="`echo ${LINE} | awk -F '|' '{ print $2 }'`";;
  81 author) TO_ID="`echo ${LINE} | awk -F '|' '{ print $3 }'`";;
  82 date)   TO_ID="`echo ${LINE} | awk -F '|' '{ print $4 }'`";;
  83 branch) TO_ID="`echo ${LINE} | awk -F '|' '{ print $5 }'`";;
  84 *)      errmsg "unrecognized TO kind: ${TO_KIND}";
  85         usage;;
  86 esac
  87
  88 echo ${TO_ID}