#! /bin/sh
 
 config=$1
 
 die(){
     echo "$@"
     exit 1
 }
 
 test -r "$config"  || die "usage: fate.sh <config>"
 

 workdir=$(cd $(dirname $config) && pwd)

 make=make

 tar='tar c'

 
 . "$config"
 
 test -n "$slot"    || die "slot not specified"
 test -n "$repo"    || die "repo not specified"
 test -d "$samples" || die "samples location not specified"
 

 : ${branch:=master}
 

 lock(){
     lock=$1/fate.lock
     (set -C; exec >$lock) 2>/dev/null || return
     trap 'rm $lock' EXIT
 }
 
 checkout(){
     case "$repo" in
         file:*|/*) src="${repo#file:}"      ;;

         git:*)     git clone --quiet --branch "$branch" "$repo" "$src" ;;

     esac
 }
 
 update()(
     cd ${src} || return
     case "$repo" in

         git:*) git fetch --quiet --force && git reset --quiet --hard "origin/$branch" ;;

     esac
 )
 
 configure()(
     cd ${build} || return

     ${shell} ${src}/configure                                           \

         --prefix="${inst}"                                              \
         --samples="${samples}"                                          \

         --enable-gpl                                                    \

         --enable-memory-poisoning                                       \

         --enable-avresample                                             \

         ${arch:+--arch=$arch}                                           \
         ${cpu:+--cpu="$cpu"}                                            \

         ${toolchain:+--toolchain="$toolchain"}                          \

         ${cross_prefix:+--cross-prefix="$cross_prefix"}                 \

         ${as:+--as="$as"}                                               \

         ${cc:+--cc="$cc"}                                               \

         ${ld:+--ld="$ld"}                                               \

         ${target_os:+--target-os="$target_os"}                          \
         ${sysroot:+--sysroot="$sysroot"}                                \
         ${target_exec:+--target-exec="$target_exec"}                    \
         ${target_path:+--target-path="$target_path"}                    \

         ${target_samples:+--target-samples="$target_samples"}           \

         ${extra_cflags:+--extra-cflags="$extra_cflags"}                 \
         ${extra_ldflags:+--extra-ldflags="$extra_ldflags"}              \
         ${extra_libs:+--extra-libs="$extra_libs"}                       \
         ${extra_conf}
 )
 
 compile()(
     cd ${build} || return
     ${make} ${makeopts} && ${make} install
 )
 
 fate()(

     test "$build_only" = "yes" && return

     cd ${build} || return
     ${make} ${makeopts} -k fate
 )
 

 clean(){

     rm -rf ${build} ${inst}

 }
 

 report(){
     date=$(date -u +%Y%m%d%H%M%S)

     echo "fate:1:${date}:${slot}:${version}:$1:$2:${branch}:${comment}" >report

     cat ${build}/config.fate >>report

     cat ${build}/tests/data/fate/*.rep >>report || for i in ${build}/tests/data/fate/*.rep ; do cat "$i" >>report 2>/dev/null; done

     test -n "$fate_recv" && $tar report *.log | gzip | $fate_recv

 }
 
 fail(){
     report "$@"

     clean

     exit
 }
 
 mkdir -p ${workdir} || die "Error creating ${workdir}"
 lock ${workdir}     || die "${workdir} locked"
 cd ${workdir}       || die "cd ${workdir} failed"
 
 src=${workdir}/src

 : ${build:=${workdir}/build}
 : ${inst:=${workdir}/install}

 
 test -d "$src" && update || checkout || die "Error fetching source"
 
 cd ${workdir}
 
 version=$(${src}/version.sh ${src})

 test "$version" = "$(cat version-$slot 2>/dev/null)" && exit 0
 echo ${version} >version-$slot

 rm -rf "${build}" *.log

 mkdir -p ${build}
 

 configure >configure.log 2>&1 || fail 3 "error configuring"
 compile   >compile.log   2>&1 || fail 2 "error compiling"
 fate      >test.log      2>&1 || fail 1 "error testing"

 report 0 success

 clean