fix(logs): support project name in positional argument (#177)

Fixes #176

src/subcommands/logs.ts

@@ -12,6 +12,7 @@ generated, and query persisted logs where the logs generated in the past are fet
 
 To show the live logs of a project's latest deployment:
   deployctl logs --project=helloworld
+  deployctl logs helloworld
 
 To show the live logs of a particular deployment:
   deployctl logs --project=helloworld --deployment=1234567890ab
@@ -206,12 +207,19 @@ export function parseArgsForLogSubcommand(args: Args): LogSubcommandArgs {
     regions = args.regions.split(",");
   }
 
+  let project: string | null = null;
+  if (args.project !== undefined) {
+    project = args.project;
+  } else if (typeof args._[0] === "string") {
+    project = args._[0];
+  }
+
   return {
     help: !!args.help,
     prod: !!args.prod,
     token: args.token ? String(args.token) : null,
     deployment: args.deployment ? String(args.deployment) : null,
-    project: args.project ? String(args.project) : null,
+    project,
     since,
     until,
     grep: args.grep,

src/subcommands/logs_test.ts

@@ -7,7 +7,10 @@ import { parseArgs } from "../args.ts";
 
 Deno.test("parseArgsForLogSubcommand", async (t) => {
   const parseHelper = (args: string[]) =>
-    parseArgsForLogSubcommand(parseArgs(["logs", ...args]));
+    // NOTE: We omit `logs` subcommand from the arguments passed to `parseArgs()`
+    // in order to match the actual behavior; the first positional argument is
+    // removed using `args._.shift()` in `deployctl.ts`.
+    parseArgsForLogSubcommand(parseArgs(args));
 
   await t.step("specify help", () => {
     const got = parseHelper(["--help"]);
@@ -83,4 +86,25 @@ Deno.test("parseArgsForLogSubcommand", async (t) => {
       limit: 42,
     });
   });
+
+  await t.step("specify project name in a positional argument", () => {
+    const got = parseHelper([
+      "--prod",
+      "--token=abc",
+      "project_name",
+    ]);
+    assertEquals(got, {
+      help: false,
+      prod: true,
+      token: "abc",
+      deployment: null,
+      project: "project_name",
+      since: null,
+      until: null,
+      grep: [],
+      levels: null,
+      regions: null,
+      limit: 100,
+    });
+  });
 });