reqprov

#!/bin/bash

set -efu -o pipefail
shopt -s extglob

DIFF=colordiff
REPO=sisyphus
for opt do
        shift
        case "$opt" in
		--evr=*) EVR=${opt#*=} ;;
		--skip-debuginfo) SKIPDEBUGINFO=1 ;;
		--skip-match=*) SKIPMATCH=${opt#*=} ;;
		--skip-ver=*) SEDVER=${opt#*=} ;;
		--strip=*) STRIP=${opt#*=} ;;
		--diff=*) DIFF=${opt#*=} ;;
		--repo=*) REPO=${opt#*=} ;;
		--) break ;;
                *) set -- "$@" "$opt";;
        esac
done

gear_describe()
{
	set -- $(gear --describe --commit 2>/dev/null)
	NAME=$1
	VERSION=$2
	RELEASE=$3
}

gear_describe

if [ -v EVR ]; then
	SRPM="$NAME-$EVR"
else
	SRPM="$NAME-$VERSION-$RELEASE"
fi

eval "$(hsh --printenv | grep -e '^def_repo=' -e '^workdir=')"
cd  "$def_repo/${def_target:-$(arch)}/RPMS.hasher"

list=()
for i in $(set +f; echo *.rpm); do
	SOURCERPM=$(rpm -qp --qf '%{SOURCERPM}' "$i")
	SRCNAME=${SOURCERPM%-*-*}
	SRCVREL=${SOURCERPM%.*.*}
	[ "$SRPM" = "$SRCVREL" ] || continue
	list+=( "$i" )
done

if [ ${#list[@]} -eq 0 ]; then
	echo >&2 "No matching $SRPM RPMs are found in $PWD, try setting --evr= or build locally."
	exit 1
fi

tmp=$(mktemp -d) && trap "rm -rf $tmp" 0
export QUOTING_STYLE=shell-escape
sep=

if [ "$#" -eq 0 ]; then
       SKIPDEBUGINFO=1
       set -- --fileclass
       echo "Default comparison is $* with --skip-debuginfo"
elif [ "$*" = "-P" ]; then
       set -- --provides
fi

# Use --fileclass to compare file lists.
sed_things() {
	local r=$1 t=$2
	if [ -v SEDVER ]; then
		sort -o "$t" "$t"
		V=$(rpm -qp "$r" --qf '%{V}' | sed 's/\./\\./g')
		R=$(rpm -qp "$r" --qf '%{R}' | sed 's/\./\\./g')
		sed -Ei "s/($SEDVER-)?$V(-$SEDVER)?(-$R)?/VERSION-RELEASE/g" "$t"
	fi
	if [ -v SKIPMATCH ]; then
		sed -Ei "\!$SKIPMATCH!d" "$t"
	fi
	if [ -v STRIP ]; then
		sed -Ei "s!$STRIP!!g" $tmp/$t
	fi
}

for i in "${list[@]}"; do
	name=${i%-*-*}
	printf "%s= %s =\n" "$sep" "$name"
	if [ -v SKIPDEBUGINFO ] && [[ "$name" =~ debuginfo ]]; then
		echo skipped
		continue
	fi
	rpmvrel=${i%.*.*}
	rpmarch=${i#"$rpmvrel"}

	rpm -qp "$i" "$@" > $tmp/$i~
	sed_things "$i" "$tmp/$i~"
	touch -r "$i" $tmp/$i~

	r=$(set +f; ls /ALT/$REPO/files/*/RPMS/$name-+([^-])-+([^-])$rpmarch 2>/dev/null ||:)
	if [ -e "$r" ]; then
		rr=$(basename $r)
		rpm -qp "$r" "$@" > $tmp/$rr
		sed_things "$r" "$tmp/$rr"
		touch -r "$r" $tmp/$rr
	else
		rr=/dev/null
	fi
	(
		cd $tmp
		$DIFF -u "$rr" "$i~"  | sed 's/^/\t/' || :
	)
	sep=$'\n'
done |& less