dsh 0.2.0-rc.2: in-container update (experimental channel), path-agnostic compose, upstream patches adapted to 0.1.x/0.2.x

upstream/container/platform/lib/canonical-json.mjs

@@ -0,0 +1,23 @@
+import { TrustError } from './validation.mjs'
+
+function normalize(value) {
+  if (value === null || typeof value === 'string' || typeof value === 'boolean') return value
+  if (typeof value === 'number') {
+    if (!Number.isSafeInteger(value)) throw new TrustError('canonical JSON numbers must be safe integers')
+    return value
+  }
+  if (Array.isArray(value)) return value.map(normalize)
+  if (typeof value === 'object') {
+    const result = {}
+    for (const key of Object.keys(value).sort()) {
+      if (value[key] === undefined) throw new TrustError('canonical JSON cannot contain undefined')
+      result[key] = normalize(value[key])
+    }
+    return result
+  }
+  throw new TrustError(`canonical JSON cannot contain ${typeof value}`)
+}
+
+export function canonicalJson(value) {
+  return Buffer.from(`${JSON.stringify(normalize(value))}\n`)
+}