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#!/bin/bash -e

PRG="$0"
while [ -h "$PRG" ] ; do
  ls=`ls -ld "$PRG"`
  link=`expr "$ls" : '.*-> \(.*\)$'`
  if expr "$link" : '/.*' > /dev/null; then
    PRG="$link"
  else
    PRG="`dirname "$PRG"`/$link"
  fi
done

APPSTORE_HOME=`dirname "$PRG"`
APPSTORE_HOME=`cd "$APPSTORE_HOME" && pwd`

. $APPSTORE_HOME/lib/common

usage_text() {
  echo "usage: $usage_app <command>"
  echo ""
  echo "Available porcelain commands:"
  grep_path "/appstore-.*$" "$APPSTORE_HOME/bin" | \
    sed "s,^.*/appstore-,    ," | \
    sort -n
  echo ""
  echo "Available plumbing commands:"
  grep_path "/appstore-.*$" "$APPSTORE_HOME/libexec" | \
    sed "s,^.*/appstore-,    ," | \
    sort -n
}

if [ $# -eq 0 ]
then
  usage
fi

command=$1; shift

bin=`grep_path "/appstore-$command$" "$APPSTORE_HOME/bin"`

if [ ! -x "$bin" ]
then
  bin=`grep_path "/appstore-$command$" "$APPSTORE_HOME/libexec"`
  if [ ! -x "$bin" ]
  then
    echo "Unknown command: $command" 2>&1
    exit 1
  fi
fi

PATH=$APPSTORE_HOME/bin:$PATH

# TODO: this is probably a good place to clean up the environment
exec env \
  "APPSTORE_HOME=$APPSTORE_HOME" \
  "echo_debug=$echo_debug" \
  "$bin" "$@"