#!/usr/bin/env bash
# --- T2-COPYRIGHT-NOTE-BEGIN ---
# T2 SDE: scripts/Commit
# Copyright (C) 2004 - 2024 The T2 SDE Project
# 
# This Copyright note is generated by scripts/Create-CopyPatch,
# more information can be found in the files COPYING and README.
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2.
# --- T2-COPYRIGHT-NOTE-END ---

force=
cache=
svnopt=
addtxt=
fold=
untested=

locations=
while [ "$1" ]; do
	case "$1" in
	-f)	force=1 ;;
	-u|-untested) untested=1 ;;
	-svn-opt)
		svnopt="$2"; shift ;;
	-add-txt)
		addtxt="$2"; shift ;;
	-cache)
		cache=1 ;;
	-fold)
		fold=1 ;;
	*)
		[ ! -e "$1" -a -e `echo package/*/$1` ] &&
			x=`echo package/*/$1` || x="$1"
		locations="$locations $x"
		;;
	esac
	shift
done

if [ -z "$locations" ]; then
	echo "Usage $0 package | files"
	exit
fi

cleanup() {
	local ret=$?
	rm $$.{log,diff}
	return 0
}
trap cleanup EXIT

fold_desc() {
	# save out [T], fold and insert with appropriate newlines
	sed -n '/\[T\] \(.*\)/{s//\1/; H}; ${x; s/\n/ /g; s/^ //; p}' "$1" |
		fold -w 76 -s | sed 's/^/[T] /; s/  */ /g; s/ $//' > x
	sed "/^\[I\].*/{ s//&\n/; r x
}; /^\[T\]/d" $1 | sed '/^$/{n;/^$/d}' > x.2
	cat x.2 > $f
	rm -f x x.2
}

trap 'echo "Got SIGINT (Ctrl-C)."; exit 1' INT

# Copy .caches if requested
#
[ "$cache" ] &&
for p in $locations; do
	[[ $p != *package/*/* ]] && continue
	p=${p#*package/*/}
	p=${p%%/*}
	d=$(echo package/*/$p)
	cp -vf /var/adm/cache/$p $d/$p.cache
	unset p d
done

# CopyPatch and Checksum and CkSumPatch
#
svn st $locations | grep '^\(A\|M\)' | cut -c8- | while read f; do
	if [ -f "$f" ]; then
		scripts/Create-CopyPatch $f | patch -p0
		if [[ $f = *.desc ]]; then
		    [ "$fold" ] && fold_desc $f
		    if grep '\[D\] \+0 \+' $f; then
			pkg=${f%.desc} pkg=${pkg##*/}
			scripts/Create-CkSumPatch $pkg | patch -p0
		    fi
		fi
	fi
done

visualize_warnings() {
	# do not highlight just single space diff lines
	sed '/^[+ -]./ {
		s/\([[ \r\t]]*\)$/\o033[0;41m\1\o033[0m/
		s/\(   *\)/\o033[0;41m\1\o033[0m/
	    }'
}

echo "Diff:"
svn diff $locations | tee $$.diff | visualize_warnings

# the grep -v === is a hack - somehow the svn === lines confuse awk ... ?!?
grep -v === $$.diff | gawk "
	BEGIN { FS=\"[ /]\" }

	/^\+\+\+ / { pkg = \$4 }
	{ if (sub(/^\+\[I\]/,\" -\") ) { info = \$0 } }

	/^\-\[V\] / { oldver=\$2 }
	/^\+\[V\] / {
		newver=\$2
		if (oldver)
		  print \"\t* updated \" pkg \" (\" oldver \" -> \" newver \")\"
		else {
		  print \"\t* added \" pkg \" (\" newver \")\" info
		}
		oldver=\"\"; newver=\"\"; info=\"\"
	}

	/^\-\[P\] / { oldprio=\$4 }
	/^\+\[P\] / {
		newprio=\$4
		if (oldprio)
		  print \"\t* changed \" pkg \" build priority (\" oldprio \" -> \" newprio \")\"
		oldprio=\"\"; newprior=\"\"
	}

" > $$.log

[ "$untested" ] && sed -i -z 's/\n$/, untested\n/g' $$.log

[ "$addtxt" ] && sed -i "\$s|\$|$addtxt|" $$.log

commit() {
	svn commit $svnopt $locations --file $$.log || exit $?
}

if [ -s $$.diff ]; then
	quit=0
	until [ $quit -ne 0 ]; do

		echo -e "\nLog:"
		if [ -s $$.log ]; then
			cat $$.log
			commit=",c=commit"
		else
			echo -e "\tEmpty Log File!"
			commit=
		fi
		
		echo -en "\nLog ok (q=quit,e=edit,d=diff,s=status$commit)? "
		[ ! "$force" ] && read in || in="commit"

		case "$in" in
		  c*)	if [ -n "$commit" ]; then
		  		commit; quit=1
			fi ;;
		  d*)	cat $$.diff | visualize_warnings | less -R ;;
		  s*)	svn st $locations ;;
		  e*)	${EDITOR:-vi} $$.log ;;
		  q*)	quit=1 ;;
		  *)	echo "Excuse me?"
		esac
	done
else
	echo -e "\nNo changes detected at:$locations"
	svn st $locations
fi