lib/scripts/getsettings
author wenzelm
Sun Nov 08 13:44:16 2009 +0100 (2009-11-08)
changeset 33512 771ec7306438
parent 33295 ce8faf41b0d4
child 34043 7129fab1fe4f
permissions -rw-r--r--
init_component: slightly more robust read (raw input, succeed on non-terminated last line);
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# -*- shell-script -*- :mode=shellscript:
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#
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# Author: Markus Wenzel, TU Muenchen
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#
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# getsettings - bash source script to augment current env.
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if [ -z "$ISABELLE_SETTINGS_PRESENT" ]
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then
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set -o allexport
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ISABELLE_SETTINGS_PRESENT=true
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export ISABELLE_HOME
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if { echo -n "$ISABELLE_HOME" | fgrep " " >/dev/null; }
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then
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  echo 1>&2 "### White space in ISABELLE_HOME may cause strange problems later on!"
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  echo 1>&2 "### ISABELLE_HOME=\"$ISABELLE_HOME\""
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fi
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#key executables
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ISABELLE_PROCESS="$ISABELLE_HOME/bin/isabelle-process"
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ISABELLE_TOOL="$ISABELLE_HOME/bin/isabelle"
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#legacy settings
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ISABELLE="$ISABELLE_PROCESS"
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ISATOOL="$ISABELLE_TOOL"
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#Isabelle distribution identifier -- filled in automatically!
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ISABELLE_IDENTIFIER=""
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#users tend to put strange things in here ...
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unset ENV
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unset BASH_ENV
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#support easy settings
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function choosefrom ()
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{
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  local RESULT=""
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  local FILE=""
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  for FILE in "$@"
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  do
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    [ -z "$RESULT" -a -e "$FILE" ] && RESULT="$FILE"
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  done
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  [ -z "$RESULT" ] && RESULT="$FILE"
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  echo "$RESULT"
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}
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#JVM path wrapper
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if [ "$OSTYPE" = cygwin ]; then
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  CLASSPATH="$(cygpath -u -p "$CLASSPATH")"
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  function jvmpath() { cygpath -w -p "$@"; }
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else
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  function jvmpath() { echo "$@"; }
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fi
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HOME_JVM="$HOME"
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#CLASSPATH convenience
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function classpath () {
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  for X in "$@"
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  do
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    if [ -z "$CLASSPATH" ]; then
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      CLASSPATH="$X"
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    else
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      CLASSPATH="$CLASSPATH:$X"
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    fi
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  done
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}
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#arrays
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function splitarray ()
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{
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  SPLITARRAY=()
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  local IFS="$1"; shift
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  for X in $*
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  do
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    SPLITARRAY["${#SPLITARRAY[@]}"]="$X"
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  done
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}
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#nested components
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ISABELLE_COMPONENTS=""
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function init_component ()
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{
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  local COMPONENT="$1"
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  if [ ! -d "$COMPONENT" ]; then
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    echo >&2 "Bad Isabelle component: \"$COMPONENT\""
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    exit 2
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  elif [ -z "$ISABELLE_COMPONENTS" ]; then
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    ISABELLE_COMPONENTS="$COMPONENT"
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  else
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    ISABELLE_COMPONENTS="$ISABELLE_COMPONENTS:$COMPONENT"
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  fi
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  if [ -f "$COMPONENT/etc/settings" ]; then
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    source "$COMPONENT/etc/settings" || exit 2
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  fi
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  if [ -f "$COMPONENT/etc/components" ]; then
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    {
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      while { unset REPLY; read -r; test "$?" = 0 -o -n "$REPLY"; }
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      do
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        case "$REPLY" in
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          \#* | "") ;;
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          /*) init_component "$REPLY" ;;
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          *) init_component "$COMPONENT/$REPLY" ;;
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        esac
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      done
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    } < "$COMPONENT/etc/components"
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  fi
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}
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#main components
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init_component "$ISABELLE_HOME"
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[ "$ISABELLE_HOME" -ef "$ISABELLE_HOME_USER" ] && \
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  { echo >&2 "### ISABELLE_HOME and ISABELLE_HOME_USER must not be the same directory!"; }
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[ -d "$ISABELLE_HOME_USER" ] && init_component "$ISABELLE_HOME_USER"
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#ML system identifier
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if [ -z "$ML_PLATFORM" ]; then
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  ML_IDENTIFIER="$ML_SYSTEM"
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else
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  ML_IDENTIFIER="${ML_SYSTEM}_${ML_PLATFORM}"
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fi
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ISABELLE_OUTPUT="$ISABELLE_OUTPUT/$ML_IDENTIFIER"
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set +o allexport
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fi