Add support for HTTPs URLs in --init

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## HEAD
 
+- @cosmjs/cli: Now supports HTTPs URLs for `--init` code sources.
 - @cosmjs/cosmwasm: Rename `CosmWasmClient.getNonce` method to `.getSequence`.
 - @cosmjs/cosmwasm: Remove `RestClient` class in favour of new modular
   `LcdClient` class from @cosmjs/sdk38.

packages/cli/src/cli.ts

@@ -1,3 +1,4 @@
+import axios from "axios";
 import * as fs from "fs";
 import { join } from "path";
 import yargs from "yargs";
@@ -6,12 +7,13 @@ import { TsRepl } from "./tsrepl";
 
 import colors = require("colors/safe");
 
-export function main(originalArgs: readonly string[]): void {
+export async function main(originalArgs: readonly string[]): Promise<void> {
   const args = yargs
     .options({
       // User options (we get --help and --version for free)
       init: {
-        describe: "Read initial TypeScript code from files",
+        describe:
+          "Read initial TypeScript code from the given sources. This can be URLs (supported schemes: https) or local file paths.",
         type: "array",
       },
       code: {
@@ -161,9 +163,14 @@ export function main(originalArgs: readonly string[]): void {
   }
 
   if (args.init) {
-    for (const path of args.init.map((arg) => arg.toString())) {
-      if (args.debug) console.info(`Adding file: '${path}' ...`);
-      init += fs.readFileSync(path, "utf8") + "\n";
+    for (const source of args.init.map((arg) => arg.toString())) {
+      if (args.debug) console.info(`Adding code from: '${source}' ...`);
+      if (source.startsWith("https://")) {
+        const response = await axios.get(source);
+        init += response.data + "\n";
+      } else {
+        init += fs.readFileSync(source, "utf8") + "\n";
+      }
     }
   }