#!/bin/bash

function run_pdebuild()
{
	# pbuilder absolute paths
	PBUILDER_HOOK_DIR="/var/cache/pbuilder/hooks"
	PBUILDER_SHELL_HOOK_TEMPLATE="$SCRIPT_DIR/internals/C10shell"
	PBUILDER_SHELL_HOOK="$PBUILDER_HOOK_DIR/C10shell"
	PBUILDER_DEPS_HOOK="$PBUILDER_HOOK_DIR/D05deps"
	
	# Local option variables
	# - internal pbuilder
	OPT_INTERNAL_PBUILDER=""
	if [ "$bool_INTERNAL_PBUILDER" = "y" ]; then
		OPT_INTERNAL_PBUILDER="--use-pdebuild-internal"
	fi
	# Sign packages optino
	OPT_SIGN_PKG_PBUILDER=""
	if [ ! -z "$GPG_SIGN_KEYID" ]; then
		OPT_SIGN_PKG_LOCAL="-k$GPG_SIGN_KEYID"
		OPT_SIGN_PKG_PBUILDER="--auto-debsign --debsign-k $GPG_SIGN_KEYID"
	fi
	
	## Build module in a clean chroot environment using pbuilder
	# Install/remove shell hook
	if [ ! -d "$PBUILDER_HOOK_DIR" ]; then
		mkdir -p "$PBUILDER_HOOK_DIR"
	fi
	if [ "$bool_SHELL_HOOK" = "y" ]; then
		cp "$PBUILDER_SHELL_HOOK_TEMPLATE" "$PBUILDER_SHELL_HOOK"
		chmod a+x "$PBUILDER_SHELL_HOOK"
	else
		if [ -x "$PBUILDER_SHELL_HOOK" ]; then
			rm "$PBUILDER_SHELL_HOOK"
		fi
	fi
	# Build using pbuilder
	echo -e "${CYellow}> Building using pbuilder${CNone}"
	# Create pbuilder hook to make sure all available packages are scanned
	# Store any existing D05 hook as a temporary file, this will be reinstated at the end
	cat <<END_D05_01 > "$PBUILDER_DEPS_HOOK"
#!/bin/sh
(cd "$TDE_DEBS_DIR"; apt-ftparchive packages . > Packages)
echo "deb [trusted=yes] file:$TDE_DEBS_DIR ./" >> /etc/apt/sources.list
END_D05_01
	if [[ "$USE_PREBUILD_EXTRA_DEPS" = "y" ]]; then
		# Get building branch from .tdescmrevision file
		if [[ -f "$MOD_BUILD_PATH/.tdescmrevision" ]]; then
			BUILD_BRANCH=`sed -r "s/([^-]+)-.*/\1/" "$MOD_BUILD_PATH/.tdescmrevision"`
			OLD_IFS=$IFS && IFS=$' \t'
			while read l_branch l_repo l_component; do
				if [ "$l_branch" = "$BUILD_BRANCH" ]; then
					cat <<END_D05_02 >> "$PBUILDER_DEPS_HOOK"
echo "deb [trusted=yes] $l_repo $DISTRO_NAME $l_component" >> /etc/apt/sources.list
END_D05_02
					break
				fi
			done <<< $(cat "$SCRIPT_DIR/internals/extra_deps.txt" | grep -E "^[[:space:]]*[^#[:space:]]+[[:space:]]+[^[:space:]]+.*$")
			IFS=$OLD_IFS
		fi
	fi
	cat <<END_D05_03 >> "$PBUILDER_DEPS_HOOK"
apt-get update
END_D05_03
	chmod a+x "$PBUILDER_DEPS_HOOK"
	# Build
	OPT_BUILD_PARALLEL=""
	if [ ${DEB_BUILD_PARALLEL+x} ]; then
		OPT_BUILD_PARALLEL="DEB_BUILD_PARALLEL=$DEB_BUILD_PARALLEL"
	fi
	eval pdebuild $OPT_INTERNAL_PBUILDER $OPT_SIGN_PKG_PBUILDER \
								--architecture $ARCHITECTURE  \
								--buildresult \"$MOD_DEB_PATH\" \
								--pbuilderroot \"sudo $OPT_BUILD_PARALLEL DISTRO_NAME=$DISTRO_NAME ARCHITECTURE=$ARCHITECTURE\" \
								--logfile \"$BUILDING_LOG_FILE\" \
								-- \
								--bindmounts \"$TDE_DEBS_DIR\" \
								--hookdir \"$PBUILDER_HOOK_DIR\" \
								$OPT_SHOW_LOGS\"$BUILDING_LOG_FILE\"
	PBUILDER_RETVAL=$?
	# Remove shell hook if it was installed before the build
	if [ -x "$PBUILDER_SHELL_HOOK" ]; then
		rm "$PBUILDER_SHELL_HOOK"
	fi
	# Remove deps hook
	if [ -x "$PBUILDER_DEPS_HOOK" ]; then
		rm "$PBUILDER_DEPS_HOOK"
	fi
	# Return pdebuild return value to calling function
	return $PBUILDER_RETVAL
}


#----------------------------
# The actual code is inside a function to allow the pdebuild return value to be
# correctly passed back to the calling script in all cases (root and non root users)
run_pdebuild