#!/bin/sh

#If a version is set then we only try merging a source plugin with matching version as a generic one could change the ABI to master HEAD
merge_internal(){ # $1=repository, $2=refspec
    [ -n "$version" ] && git pull --no-rebase --log --stat --commit --no-edit  $1 sourceplugin-$2-$version
    [ -z "$version" ] && git pull --no-rebase --log --stat --commit --no-edit  $1 sourceplugin-$2
}

unset suceeded failed version

merge(){ # $1=repository, $2=refspec
    merge_internal "$1" "$2" || {
        git reset --hard
        echo merge of $1 $2 failed, continuing with other plugins
        failed="$failed $2"
        return 0
    }
    suceeded="$suceeded $2"
}

error(){
    echo $1
    exit 1
}

git diff --exit-code >/dev/null ||\
    error "Please commit local changes first"

git diff --cached --exit-code >/dev/null ||\
    error "Please commit local changes first"

#version="12.34"

merge "https://github.com/michaelni/FFmpeg.git" "libpostproc"

[ -n "$version"  ] && echo version: $version
[ -n "$suceeded" ] && echo Succeeded merging: $suceeded
[ -n "$failed"   ] && echo Failed merging: $failed