1 files changed, 41 insertions, 0 deletions
diff --git a/scripts/update-authors.sh b/scripts/update-authors.sh
new file mode 100755
index 0000000..fe1d857
--- /dev/null
+++ b/scripts/update-authors.sh
@@ -0,0 +1,41 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0-or-later
+set -o nounset -o xtrace
+
+function spdx_originator_to_authors {
+	# $1 = Person/Organization
+	find -name '*.spdx' | xargs grep --no-filename "^PackageOriginator: $1: " \
+		| cut -d : -f 3 | sed -e 's/^ *//' -e 's/(/</' -e 's/)/>/' | sort -u
+}
+
+cd "$(git rev-parse --show-toplevel)"
+AUTHORS_FILE=AUTHORS
+TEMP_FILE="$(mktemp AUTHORS.XXXXXXXXXX)"
+
+# drop all names from the current file
+sed '/^People who contributed commits to our Git repo are/q' "${AUTHORS_FILE}" > "${TEMP_FILE}"
+# append to the new file
+git log --format="%aN <%aE>" | sort -u | git check-mailmap --stdin | sort -u >> "${TEMP_FILE}"
+
+echo '' >> "${TEMP_FILE}"
+echo 'Knot Resolver source tree also bundles code and content published by:' >> "${TEMP_FILE}"
+spdx_originator_to_authors "Person" >> "${TEMP_FILE}"
+spdx_originator_to_authors "Organization" >> "${TEMP_FILE}"
+
+echo '' >> "${TEMP_FILE}"
+echo 'Thanks to everyone who knowingly or unknowingly contributed!' >> "${TEMP_FILE}"
+
+# check for changes
+diff "${AUTHORS_FILE}" "${TEMP_FILE}"
+CHANGED=$?
+
+if [ $CHANGED -ne 0 ]; then
+    # update
+    mv "${TEMP_FILE}" "${AUTHORS_FILE}"
+fi
+
+# cleanup
+rm -f "${TEMP_FILE}"
+
+# signal change with exit code
+exit $CHANGED