1 files changed, 16 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/applications/networking/instant-messengers/element/seshat/update.sh b/nixpkgs/pkgs/applications/networking/instant-messengers/element/seshat/update.sh
new file mode 100755
index 000000000000..b201501e1c43
--- /dev/null
+++ b/nixpkgs/pkgs/applications/networking/instant-messengers/element/seshat/update.sh
@@ -0,0 +1,16 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -I nixpkgs=../ -i bash -p wget yarn2nix
+
+set -euo pipefail
+
+if [ "$#" -ne 1 ] || [[ "$1" == -* ]]; then
+  echo "Regenerates the Yarn dependency lock files."
+  echo "Usage: $0 <git release tag>"
+  exit 1
+fi
+
+SRC="https://raw.githubusercontent.com/matrix-org/seshat/$1"
+
+wget "$SRC/seshat-node/yarn.lock"
+yarn2nix > yarn.nix
+rm yarn.lock