update

package/node_modules/@tufjs/models/dist/snapshot.js

@@ -0,0 +1,71 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.Snapshot = void 0;
+const util_1 = __importDefault(require("util"));
+const base_1 = require("./base");
+const file_1 = require("./file");
+const utils_1 = require("./utils");
+/**
+ * A container for the signed part of snapshot metadata.
+ *
+ * Snapshot contains information about all target Metadata files.
+ * A top-level role that specifies the latest versions of all targets metadata files,
+ * and hence the latest versions of all targets (including any dependencies between them) on the repository.
+ */
+class Snapshot extends base_1.Signed {
+    constructor(opts) {
+        super(opts);
+        this.type = base_1.MetadataKind.Snapshot;
+        this.meta = opts.meta || { 'targets.json': new file_1.MetaFile({ version: 1 }) };
+    }
+    equals(other) {
+        if (!(other instanceof Snapshot)) {
+            return false;
+        }
+        return super.equals(other) && util_1.default.isDeepStrictEqual(this.meta, other.meta);
+    }
+    toJSON() {
+        return {
+            _type: this.type,
+            meta: metaToJSON(this.meta),
+            spec_version: this.specVersion,
+            version: this.version,
+            expires: this.expires,
+            ...this.unrecognizedFields,
+        };
+    }
+    static fromJSON(data) {
+        const { unrecognizedFields, ...commonFields } = base_1.Signed.commonFieldsFromJSON(data);
+        const { meta, ...rest } = unrecognizedFields;
+        return new Snapshot({
+            ...commonFields,
+            meta: metaFromJSON(meta),
+            unrecognizedFields: rest,
+        });
+    }
+}
+exports.Snapshot = Snapshot;
+function metaToJSON(meta) {
+    return Object.entries(meta).reduce((acc, [path, metadata]) => ({
+        ...acc,
+        [path]: metadata.toJSON(),
+    }), {});
+}
+function metaFromJSON(data) {
+    let meta;
+    if (utils_1.guard.isDefined(data)) {
+        if (!utils_1.guard.isObjectRecord(data)) {
+            throw new TypeError('meta field is malformed');
+        }
+        else {
+            meta = Object.entries(data).reduce((acc, [path, metadata]) => ({
+                ...acc,
+                [path]: file_1.MetaFile.fromJSON(metadata),
+            }), {});
+        }
+    }
+    return meta;
+}