support/download/cvs

   1 #!/usr/bin/env bash
   2
   3 # We want to catch any unexpected failure, and exit immediately
   4 set -e
   5
   6 # Download helper for cvs, to be called from the download wrapper script
   7 #
   8 # Call it as:
   9 #   .../cvs [-q] OUT_FILE CVS_URL REV PKG_NAME BASENAME
  10 #
  11 # Environment:
  12 #   CVS      : the cvs command to call
  13
  14 verbose=
  15 while getopts :q OPT; do
  16     case "${OPT}" in
  17     q)  verbose=-Q;;
  18     \?) printf "unknown option '%s'\n" "${OPTARG}" >&2; exit 1;;
  19     esac
  20 done
  21 shift $((OPTIND-1))
  22
  23 output="${1}"
  24 repo="${2}"
  25 rev="${3}"
  26 rawname="${4}"
  27 basename="${5}"
  28
  29 # Caller needs to single-quote its arguments to prevent them from
  30 # being expanded a second time (in case there are spaces in them)
  31 _cvs() {
  32     eval ${CVS} "${@}"
  33 }
  34
  35 if [[ ${rev} =~ ^[0-9] ]]; then
  36     # Date, because a tag or a branch cannot begin with a number
  37     select="-D"
  38 else
  39     # Tag or branch
  40     select="-r"
  41 fi
  42
  43 # The absence of an initial : on ${repo} means access method undefined
  44 if [[ ! "${repo}" =~ ^: ]]; then
  45    # defaults to anonymous pserver
  46    repo=":pserver:anonymous@${repo}"
  47 fi
  48
  49 export TZ=UTC
  50 _cvs ${verbose} -z3 -d"'${repo}'" \
  51      co -d "'${basename}'" ${select} "'${rev}'" -P "'${rawname}'"
  52
  53 tar czf "${output}" "${basename}"