1 files changed, 105 insertions, 0 deletions
diff --git a/.local/share/wrapper.sh b/.local/share/wrapper.sh
new file mode 100755
index 0000000..9335039
--- /dev/null
+++ b/.local/share/wrapper.sh
@@ -0,0 +1,105 @@
+#!/bin/sh
+
+# This program is free software: you can redistribute it and/or modify it under
+# the terms of the GNU Affero General Public License as published by the Free
+# Software Foundation, either version 3 of the License, or (at your option) any
+# later version.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+# FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
+# details.
+
+main()
+{
+	WRAPPER_BINS_NORMALIZED="$(mktemp)"
+	WRAPPER_ETCFILE="$HOME/.local/etc/wrapper.d/${0##*/}.sh"
+
+	if [ ! -f "$WRAPPER_ETCFILE" ]
+	then
+		printf "No configuration for %s found at %s\n" \
+			"${0##*/}" \
+			"$WRAPPER_ETCFILE" \
+			>&2
+
+		exit 3
+	fi
+
+	# shellcheck disable=SC1090
+	. "$WRAPPER_ETCFILE"
+
+	# Turn all WRAPPER_BINS entries into full paths
+	for bin in ${WRAPPER_BINS:-${0##*/}}
+	do
+		case "$bin" in
+			./*|/*)
+				printf "%s\n" "$bin"
+				;;
+			*)
+				printf "%s" "$PATH" | sed 's/:/\n/g' | while read -r path
+				do
+					full_path="$(printf "%s/%s\n" "$path" "$bin")"
+
+					# Filter out any paths that refer to
+					# the wrapper script itself. This
+					# should ensure it won't call itself
+					# into perpetuity.
+					if [ "$full_path" = "$0" ]
+					then
+						continue
+					fi
+
+					printf "%s\n" "$full_path"
+				done
+		esac
+	done > "$WRAPPER_BINS_NORMALIZED"
+
+	# Clear some stray variables
+	unset bin
+	unset full_path
+	unset path
+
+	# Loop over all possible wrapped options, and run the first one that is
+	# executable
+	while read -r WRAPPER_CMD
+	do
+		[ -x "$WRAPPER_CMD" ] || continue
+
+		# Add a firejail wrapper if desired
+		if [ -n "$FIREJAIL_PROFILE" ]
+		then
+			WRAPPER_CMD="firejail --profile=""$FIREJAIL_PROFILE"" -- $WRAPPER_CMD"
+		fi
+
+		# Optionally add WRAPPER_OPTS, so theres no double space in
+		# case it is empty.
+		if [ -n "$WRAPPER_OPTS" ]
+		then
+			WRAPPER_CMD="$WRAPPER_CMD $(printf "%s" "$WRAPPER_OPTS" | tr "\n" " " | awk '{$1=$1};1')"
+		fi
+
+		# Run all the things we want to run
+		wrap_before
+		wrap_log "> $WRAPPER_CMD $*"
+		$WRAPPER_CMD "$@"
+		WRAPPER_EXITCODE=$?
+		wrap_after
+
+		return $WRAPPER_EXITCODE
+	done < "$WRAPPER_BINS_NORMALIZED"
+
+	printf "No underlying executable found for %s:\n" "${0##*/}" >&2
+	for bin in $WRAPPER_BINS
+	do
+		printf "\t%s\n" "$bin" >&2
+	done
+}
+
+wrap_log() {
+	printf "[%s] %s\n" "$(date -u +%FT%TZ)" "$*" >&2
+}
+
+wrap_before() { :; }
+wrap_after() { :; }
+
+main "$@"