#!/bin/sh
# mingw-get-info.sh
#
# Display information about software installations managed by mingw-get
#
# Usage:
#   mingw-get-info {all | installed | index}
#
# Copyright (C) 2011,  Keith D. Marshall
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
# 
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
#
  mingw_get=`type -p mingw-get`
  test -n "$mingw_get" || {
    echo >&2 $0: cannot find mingw-get.exe
    exit 2
  }

  spinwait(){
    case $spinmark in
      '/')  spinmark='-'  ;;
      '-')  spinmark='\\' ;;
      '\\') spinmark='|'  ;;
      *)    spinmark='/'  ;;
    esac
    printf '\r'"$spinmark"
  }

  query(){
    $mingw_get list "$@" 2>/dev/null | tr -d \\015
  }

  index(){
    query | awk '
      /^Package:/{pkg=$2;sys=$4}
      /^Components:/{print "Subsystem:", sys, "Package:", pkg, $0}
      ' | tr -d ,
  }

  packages(){
    test -f index.$$ || index > index.$$
    awk '{print $4}' index.$$
  }

  entities(){
    for pkg in `packages`
    do awk '$4 == "'"$pkg"'"{
	for( i = 5; i < NF; print $4"-"$++i );
      }' index.$$
    done
    rm -f index.$$
  }

  report(){
    printf '\r%s\n' "$1:"
    query $1 | awk '/^Repository/||/^Installed/{print "  "$0}'
  }

  all(){
    for pkg in `entities`
    do
      report $pkg
    done
  }

  installed(){
    for pkg in `entities`
    do
      spinwait
      report=`report $pkg`
      test `echo "$report" | awk '
	/^ *Installed/{print $NF}'` = none || echo "$report"
    done
    printf '\r \r'
  }

  cmd=""
  test $# -eq 0 && set all
  for cmds in index installed all
  do
    case $cmds in $1*)
      test -z "$cmd" || {
	echo >&2 $0: $1: ambiguous command
	exit 1
      }
      cmd=$cmds
    esac
  done

  test -z "$cmd" && {
    echo >&2 $0: $1: unknown command
    exit 1
  }

  $cmd "$@"
#
# mingw-get-info.sh: end of file