pkgs/by-name/ve/versionCheckHook/hook.sh

   1 _handleCmdOutput(){
   2     local versionOutput
   3     versionOutput="$(env \
   4         --chdir=/ \
   5         --argv0="$(basename "$1")" \
   6         --ignore-environment \
   7         "$@" 2>&1 \
   8         | sed -e 's|@storeDir@/[^/ ]*/|{{storeDir}}/|g' \
   9         || true)"
  10     if [[ "$versionOutput" =~ "$version" ]]; then
  11         echoPrefix="Successfully managed to"
  12     else
  13         echoPrefix="Did not"
  14     fi
  15     # The return value of this function is this variable:
  16     echo "$echoPrefix"
  17     # And in anycase we want these to be printed in the build log, useful for
  18     # debugging, so we print these to stderr.
  19     echo "$echoPrefix" find version "$version" in the output of the command \
  20         "$@" >&2
  21     echo "$versionOutput" >&2
  22 }
  23 versionCheckHook(){
  24     runHook preVersionCheck
  25     echo Executing versionCheckPhase
  26
  27     local cmdProgram cmdArg echoPrefix
  28     if [[ -z "${versionCheckProgram-}" ]]; then
  29         if [[ -z "${pname-}" ]]; then
  30             echo "both \$pname and \$versionCheckProgram are empty, so" \
  31                 "we don't know which program to run the versionCheckPhase" \
  32                 "upon" >&2
  33             exit 2
  34         else
  35             cmdProgram="${!outputBin}/bin/$pname"
  36         fi
  37     else
  38         cmdProgram="$versionCheckProgram"
  39     fi
  40     if [[ ! -x "$cmdProgram" ]]; then
  41         echo "versionCheckHook: $cmdProgram was not found, or is not an executable" >&2
  42         exit 2
  43     fi
  44     if [[ -z "${versionCheckProgramArg}" ]]; then
  45         for cmdArg in "--help" "--version"; do
  46             echoPrefix="$(_handleCmdOutput "$cmdProgram" "$cmdArg")"
  47             if [[ "$echoPrefix" == "Successfully managed to" ]]; then
  48                 break
  49             fi
  50         done
  51     else
  52         cmdArg="$versionCheckProgramArg"
  53         echoPrefix="$(_handleCmdOutput "$cmdProgram" "$cmdArg")"
  54     fi
  55     if [[ "$echoPrefix" == "Did not" ]]; then
  56         exit 2
  57     fi
  58
  59     runHook postVersionCheck
  60     echo Finished versionCheckPhase
  61 }
  62
  63 if [[ -z "${dontVersionCheck-}" ]]; then
  64     echo "Using versionCheckHook"
  65     preInstallCheckHooks+=(versionCheckHook)
  66 fi