xarrul rework

prints/print.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+# Print a markdown file on the thermal printer.
+# Usage: ./print.sh <file.md>
+#   PRINTER_URL env var overrides the endpoint.
+set -euo pipefail
+
+PRINTER_URL="${PRINTER_URL:-http://bard.internal:8090/print/notes?border=ornate&header=0}"
+
+file="${1:-}"
+if [[ -z "$file" ]]; then
+  echo "usage: $0 <file.md>" >&2
+  exit 1
+fi
+if [[ ! -f "$file" ]]; then
+  echo "error: no such file: $file" >&2
+  exit 1
+fi
+
+curl -fsS -X POST "$PRINTER_URL" \
+  -H "content-type: text/markdown" \
+  --data-binary "@$file"
+
+echo "sent: $file"