Statemine Release Prep (#460)

* set default para id to 1000

* add genesis value generation script

* add statemine chain spec and genesis values

* add westmint chain spec and genesis values

* rename chain specs to _genesis to indicate that they are not usable for syncing the chain

* adjust chain names to reduce confusion

* add westmint chain spec

* set chain id to shell

* comment out statemine chain spec

* fix build

Co-authored-by: joepetrowski <joe@parity.io>

scripts/generate_genesis_values/index.js

@@ -0,0 +1,54 @@
+const fs = require("fs");
+const { exit } = require("process");
+const { xxhashAsHex } = require("@polkadot/util-crypto");
+
+if (!process.argv[2] || !process.argv[3]) {
+  console.log("usage: node generate_keys <input chainspec> <output json>");
+  exit();
+}
+
+const input = process.argv[2];
+const output = process.argv[3];
+fs.readFile(input, "utf8", (err, data) => {
+  if (err) {
+    console.log(`Error reading file from disk: ${err}`);
+    exit(1);
+  }
+
+  const toHex = (str) => "0x" + Buffer.from(str, "ascii").toString("hex");
+  const startsWith = (str, arr) => arr.some((test) => str.startsWith(test));
+
+  const filter_prefixes = [
+    // substrate well known keys
+    ":code",
+    ":heappages",
+    ":extrinsic_index",
+    ":changes_trie",
+    ":child_storage",
+  ]
+    .map(toHex)
+    .concat(
+      // shell pallets
+      ["System", "ParachainSystem", "ParachainInfo", "CumulusXcm"].map((str) =>
+        xxhashAsHex(str)
+      )
+    )
+    .concat([
+      // polkadot well known keys; don't seem necessary, but just to make sure
+      "0x06de3d8a54d27e44a9d5ce189618f22db4b49d95320d9021994c850f25b8e385",
+      "0xf5207f03cfdce586301014700e2c2593fad157e461d71fd4c1f936839a5f1f3e",
+      "0x6a0da05ca59913bc38a8630590f2627cb6604cff828a6e3f579ca6c59ace013d",
+      "0x6a0da05ca59913bc38a8630590f2627c1d3719f5b0b12c7105c073c507445948",
+      "0x6a0da05ca59913bc38a8630590f2627cf12b746dcf32e843354583c9702cc020",
+      "0x63f78c98723ddc9073523ef3beefda0c4d7fefc408aac59dbfe80a72ac8e3ce5",
+    ]);
+
+  const spec = JSON.parse(data);
+
+  const genesis = Object.fromEntries(
+    Object.entries(spec.genesis.raw.top).filter(
+      ([key, value]) => !startsWith(key, filter_prefixes)
+    )
+  );
+  fs.writeFileSync(output, JSON.stringify(genesis));
+});