1 files changed, 38 insertions, 0 deletions
diff --git a/tools/update_openbsd_version.sh b/tools/update_openbsd_version.sh
new file mode 100755
index 0000000..d2f7c8f
--- /dev/null
+++ b/tools/update_openbsd_version.sh
@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+# Fetch the current OpenBSD release from openbsd.org and cache it for the
+# startpage boot banner. Safe to run from cron (idempotent; only rewrites
+# the cache when the version string is valid and changed or missing).
+set -euo pipefail
+
+OUT="${OUT:-/mnt/slab/www.sillylaird.ca/startpage/openbsd_version.txt}"
+URL="${URL:-https://www.openbsd.org/}"
+TMP="$(mktemp)"
+trap 'rm -f "$TMP"' EXIT
+
+if ! curl -fsSL --max-time 25 -A 'sillylaird-openbsd-version/1.0' -o "$TMP" "$URL"; then
+  echo "update_openbsd_version: fetch failed: $URL" >&2
+  exit 1
+fi
+
+# Prefer the puffy banner alt text: [OpenBSD 7.9]
+ver="$(sed -n 's/.*\[OpenBSD \([0-9][0-9]*\.[0-9][0-9]*\)\].*/\1/p' "$TMP" | head -n1 || true)"
+
+# Fallback: first "OpenBSD X.Y" mention that is not a year-range copyright.
+if [[ -z "$ver" ]]; then
+  ver="$(grep -oE 'OpenBSD [0-9]+\.[0-9]+' "$TMP" | head -n1 | awk '{print $2}' || true)"
+fi
+
+if [[ ! "$ver" =~ ^[0-9]+\.[0-9]+$ ]]; then
+  echo "update_openbsd_version: could not parse version from $URL" >&2
+  exit 1
+fi
+
+mkdir -p "$(dirname "$OUT")"
+if [[ -f "$OUT" ]] && [[ "$(tr -d '[:space:]' < "$OUT")" == "$ver" ]]; then
+  echo "openbsd $ver (unchanged)"
+  exit 0
+fi
+
+printf '%s\n' "$ver" > "$OUT"
+chmod 644 "$OUT"
+echo "openbsd $ver -> $OUT"