diff_repo

#!/bin/bash

set -e

manifest=$1
branch=$2
repofile=${3:-default}

usage() {
	cat <<EOF >&2
$(basename $BASH_SOURCE) <manifest file> <branch> [repofile=default]

Examples: 
	$(basename $BASH_SOURCE) master/agl.manifest master
	$(basename $BASH_SOURCE) koi/agl.manifest koi
	$(basename $BASH_SOURCE) lamprey/agl.manifest lamprey
EOF
	exit 1
}

[[ ! -f $manifest ]] && usage
[[ -z "$branch" ]] && usage

URL="https://git.automotivelinux.org/AGL/AGL-repo/plain/${repofile}.xml?h=${branch}"
#URL="https://gerrit.automotivelinux.org/gerrit/gitweb?p=AGL/AGL-repo.git;a=blob_plain;f=${1:-default}.xml;hb=HEAD"

tmpout=$(mktemp /tmp/$(basename $0).XXXXXXXX)
trap "rm -f $tmpout" STOP INT QUIT EXIT ERR

function info() { echo "$@" >&2; }

info "Using repo URL: $URL"
curl -s "$URL" >$tmpout 

declare -A repo

while read a b c; do
	ref=$(echo $a | cut -f1 -d'=')
	layer=$(basename $b)
	repo[$layer]=$ref
done < <($(dirname $0)/repo2manifest $tmpout)

info "Repo: ${#repo[@]} layers loaded"
#for x in ${!repo[@]}; do 
#	echo $x=${repo[$x]}
#done

function parse_manifest() {
	local manifest=$1
	local layer
	local ref
	sed 's/#.*$//g' <$manifest | awk '/[^[:space:]]+/ { if ($1 == "@include") { for(i=2;i<=NF;i++) { print "INCLUDE " $i}; } else {print "DIR  "$2; for(i=3;i<=NF;i++) { print "REPO "$i}; print "HASH "$1 } }' | while read tag value; do
		case $tag in
			DIR) 
				layer=$(basename $value)
				;;
			REPO)
				name="${value%%=*}"
				url="${value#*=}"
				;;
			HASH)
				ref="${value%%=*}"
				locbr="${value#*=}"
				echo $layer $ref
				;;
			INCLUDE)
				parse_manifest $(dirname $manifest)/$value
				;;
		esac
	done
}

declare -A mani 

info "Parsing manifest $manifest"
while read layer ref; do
	mani[$layer]=$ref
done < <(parse_manifest $manifest)
info "Manifest: ${#mani[@]} layers loaded"
#for x in ${!mani[@]}; do 
#	echo $x=${mani[$x]}
#done


	
info "Differences between $manifest and $branch/$repofile.xml:"
info "-----------------------------"
cnt=0
for l in ${!mani[@]}; do
	[[ "${mani[$l]}" != "${repo[$l]}" ]] && { 
		printf "%-30s %-30s %-30s\n" $l ${repo[$l]} "(was: ${mani[$l]})"
		(( cnt++ ))
	} || true
done
info "-----------------------------"
info "$cnt differences"