#!/bin/sh
# --- SDE-COPYRIGHT-NOTE-BEGIN ---
# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
#
# Filename: bin/sde-commit
# Copyright (C) 2006 - 2009 The OpenSDE Project
# Copyright (C) 2004 - 2006 The T2 SDE Project
#
# 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 as published by
# the Free Software Foundation; version 2 of the License. A copy of the
# GNU General Public License can be found in the file COPYING.
# --- SDE-COPYRIGHT-NOTE-END ---

#Description: Commits into svn the changes on the given locations
#Alias: ci

[ -n "$SDEROOT" ] ||
	export SDEROOT=$( cd "${0%/*}/.."; pwd -P )

. $SDEROOT/lib/libsde.in

commit_usage() {
	local progname=${0##*/}
	cat <<EOT
Usage:	$progname [--file <message file>] [-m <message>] [FILES...]
EOT
}

commit_abort() {
	echo_error "Got SIGINT (Crtl-C)."
	rm -f $tmpfile.status $tmpfile.diff

	[ -n "$logfile" -a "$logfile" != "$tmpfile.log" ] || rm -f "$logfile"
	exit 1
}

shortopts='F:m:s'
longopts='file:'
options=$( getopt -o "$shortopts" -l "$longopts" -- "$@" )
if [ $? -ne 0 ]; then
	commit_usage
	exit -1
fi

# load new arguments list
eval set -- "$options"

logfile=
message=
signed=
tmpfile=$SDEROOT/tmp/$$

mkdir -p "$SDEROOT/tmp"

while [ $# -gt 0 ]; do
	case "$1" in
		-F|--file)	logfile="`readlink -f $2 2> /dev/null`"; shift ;;
		-m)		message="$2"; shift ;;
		-s)		signed=true; shift ;;

		--)	shift; break ;;
		-*)	echo_abort 1 "Unknown argument '$1', aborting." ;;
		*)	break ;;
	esac
	shift
done

if [ -n "$logfile" -a ! -r "$logfile" ]; then
	echo_abort 2 "File '$logfile' not found."
fi

# validate locations
#
[ $# -gt 0 ] || set -- .
# extract roots at root relative paths of the given locations
locations=$( $SDEROOT/bin/sde-list-files --roots "$@" )

# we only accept one root at the time
roots=$( echo "$locations" | cut -d'	' -f1 | sort -u )
root=$( echo "$roots" | head -n 1 )
[ "$root" = "$roots" ] || echo_abort 1 "Locations from multiple repositories given, aborting."

# $root relative locations
locations=$( echo "$locations" | cut -d'	' -f2 )
[ -n "$locations" ] || echo_abort 1 "No locations, aborting."

# and here we go
#
trap 'commit_abort' INT

# on git we need an empty index
#
[ ! -d "$SDEROOT/$root/.git" ] || ( cd "$SDEROOT/$root/"; git reset > /dev/null )

# find changes on these locations, and apply copyright patch
#  - in the case of git working trees we populate the index
#
$SDEROOT/bin/sde-list-changes -C "$SDEROOT/$root" --status $locations | ( while read status file; do
	# work sitting on the root of the working tree
	cd "$SDEROOT/$root"

	if [ -d ".git" ]; then
		# git status
		case "$status" in
			D)	# deleted, tell the index
				git rm --quiet -- "$file"
				;;
			M|?)	# modified, update copyright note and add to the index
				$SDEROOT/bin/sde-patch-copyright -- "$file"
				git add -- "$file"
				;;
			*)	# unknown
				echo_warning "$file: has an unknown status ($status)"
				;;
		esac
	elif [ -d ".svn" ]; then
		# svn status
		case "$status" in
			?)	# new file, add copyright note and `svn add`
				$SDEROOT/bin/sde-patch-copyright -- "$file"
				svn add -q -- "$file"
				;;
			A|M)	# modified or already added, update copyright note
				$SDEROOT/bin/sde-patch-copyright -- "$file"
				;;
			*)	# unknown
				echo_warning "$file: has an unknown status ($status)"
				;;
		esac

	fi
done )

# and finally move to the root of the working tree
cd "$SDEROOT/$root"

# cache stats and diff
if [ -d ".git" ]; then
	# git status
	git diff-index -M --color --cached --stat=80,65 HEAD > $tmpfile.status
	git diff-index -M --color --cached -p HEAD | sed -e "s,^\(.\[1m\|\)\(---\|\+\+\+\) [ab]/,\1\2 $root/," > $tmpfile.diff

	if [ -z "$logfile" -a -z "$message" ]; then
		logfile=$tmpfile.log
		git diff-index -M --cached -p HEAD | sed -e "s,^\(---\|\+\+\+\) [ab]/,\1 $root/," |
			gawk -f $SDEROOT/lib/sde-commit/commit-message.awk > $logfile
	fi
elif [ -d ".svn" ]; then
	# svn status
	svn status -- $locations > $tmpfile.status
	svn diff -- $locations > $tmpfile.diff

	if [ -z "$logfile" -a -z "$message" ]; then
		logfile=$tmpfile.log
		cat $tmpfile.diff | sed -e "s,^\(---\|\+\+\+\) [ab]/,\1 $root/," |
			gawk -f $SDEROOT/lib/sde-commit/commit-message.awk > $logfile
	fi
else
	echo_abort 3 "$root: unknown version control system."
fi

if [ -n "$message" ]; then
	logfile=$tmpfile.log
	echo "$message" > $logfile
fi

if [ -s $tmpfile.diff -o -s $tmpfile.status ]; then

	echo_msg "Changes:"
	cat $tmpfile.diff

	echo_msg "Status:"
	cat $tmpfile.status

	if [ -s "$logfile" -a -n "${signed:-}" -a -e '.git' ]; then
		cat <<-EOT >> $logfile

		Signed-off-by: $(git config user.name) <$(git config user.email)>
		EOT
	fi

	quit=0
	until [ $quit -ne 0 ]; do

		echo_msg "Commit Message:"
		if [ -s $logfile ]; then
			cat $logfile
			commit=",${COLOR_MESSAGE}c${COLOR_NORMAL}:commit"
		else
			echo_warning "\tEmpty Log File!"
			commit=
		fi

		$ECHO_E -n "\n${COLOR_MESSAGE}Is the message ok?${COLOR_NORMAL}"
		$ECHO_E -n " (${COLOR_MESSAGE}q${COLOR_NORMAL}:quit,${COLOR_MESSAGE}e${COLOR_NORMAL}:edit,${COLOR_MESSAGE}d${COLOR_NORMAL}:diff,${COLOR_MESSAGE}s${COLOR_NORMAL}:status$commit)${COLOR_MESSAGE}:${COLOR_NORMAL} "
		read opt

		case "$opt" in
		  c*)	if [ -z "$commit" ]; then
				# don't commit yet
				continue
			elif [ -d ".git" ]; then
				# git commit
				git commit ${signed:+-s} --file $logfile && rm "$logfile" ; quit=1
			elif [ -d ".svn" ]; then
				# svn commit
				svn commit --file $logfile -- $locations && rm "$logfile" ; quit=1
			fi ;;
		  d*)	${PAGER:-less -R} $tmpfile.diff ;;
		  s*)	cat $tmpfile.status ;;
		  e*)	${EDITOR:-vi} $logfile ;;
		  q*)	quit=1 ;;
		  *)	echo "Excuse me?"
		esac
	done
else
	echo_warning "No changes detected."
fi

rm -f $tmpfile.status $tmpfile.diff
[ "$logfile" != "$tmpfile.log" ] || rm -f "$logfile"