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denoland-deno/cli/tests/testdata/run/warn_on_deprecated_api/main.js
Bartek Iwańczuk c62615bfe5
feat: Start warning on each use of a deprecated API (#21939)
This commit introduces deprecation warnings for "Deno.*" APIs.

This is gonna be quite noisy, but should tremendously help with user
code updates to ensure
smooth migration to Deno 2.0. The warning is printed at each unique call
site to help quickly
identify where code needs to be adjusted. There's some stack frame
filtering going on to
remove frames that are not useful to the user and would only cause
confusion.

The warning can be silenced using "--quiet" flag or
"DENO_NO_DEPRECATION_WARNINGS" env var.

"Deno.run()" API is now using this warning. Other deprecated APIs will
start warning
in follow up PRs.

Example:

```js
import { runEcho as runEcho2 } from "http://localhost:4545/run/warn_on_deprecated_api/mod.ts";

const p = Deno.run({
  cmd: [
    Deno.execPath(),
    "eval",
    "console.log('hello world')",
  ],
});
await p.status();
p.close();

async function runEcho() {
  const p = Deno.run({
    cmd: [
      Deno.execPath(),
      "eval",
      "console.log('hello world')",
    ],
  });
  await p.status();
  p.close();
}

await runEcho();
await runEcho();

for (let i = 0; i < 10; i++) {
  await runEcho();
}

await runEcho2();

```

```
$ deno run --allow-read foo.js
Warning
├ Use of deprecated "Deno.run()" API.
│
├ This API will be removed in Deno 2.0. Make sure to upgrade to a stable API before then.
│
├ Suggestion: Use "Deno.Command()" API instead.
│
└ Stack trace:
  └─ at file:///Users/ib/dev/deno/foo.js:3:16

hello world
Warning
├ Use of deprecated "Deno.run()" API.
│
├ This API will be removed in Deno 2.0. Make sure to upgrade to a stable API before then.
│
├ Suggestion: Use "Deno.Command()" API instead.
│
└ Stack trace:
  ├─ at runEcho (file:///Users/ib/dev/deno/foo.js:8:18)
  └─ at file:///Users/ib/dev/deno/foo.js:13:7

hello world
Warning
├ Use of deprecated "Deno.run()" API.
│
├ This API will be removed in Deno 2.0. Make sure to upgrade to a stable API before then.
│
├ Suggestion: Use "Deno.Command()" API instead.
│
└ Stack trace:
  ├─ at runEcho (file:///Users/ib/dev/deno/foo.js:8:18)
  └─ at file:///Users/ib/dev/deno/foo.js:14:7

hello world
Warning
├ Use of deprecated "Deno.run()" API.
│
├ This API will be removed in Deno 2.0. Make sure to upgrade to a stable API before then.
│
├ Suggestion: Use "Deno.Command()" API instead.
│
└ Stack trace:
  ├─ at runEcho (file:///Users/ib/dev/deno/foo.js:8:18)
  └─ at file:///Users/ib/dev/deno/foo.js:17:9

hello world
hello world
hello world
hello world
hello world
hello world
hello world
hello world
hello world
hello world
Warning
├ Use of deprecated "Deno.run()" API.
│
├ This API will be removed in Deno 2.0. Make sure to upgrade to a stable API before then.
│
├ Suggestion: Use "Deno.Command()" API instead.
│
├ Suggestion: It appears this API is used by a remote dependency.
│             Try upgrading to the latest version of that dependency.
│
└ Stack trace:
  ├─ at runEcho (http://localhost:4545/run/warn_on_deprecated_api/mod.ts:2:18)
  └─ at file:///Users/ib/dev/deno/foo.js:20:7

hello world

```

Closes #21839
2024-01-18 23:30:49 +00:00

32 lines
521 B
JavaScript

import { runEcho as runEcho2 } from "http://localhost:4545/run/warn_on_deprecated_api/mod.ts";
const p = Deno.run({
cmd: [
Deno.execPath(),
"eval",
"console.log('hello world')",
],
});
await p.status();
p.close();
async function runEcho() {
const p = Deno.run({
cmd: [
Deno.execPath(),
"eval",
"console.log('hello world')",
],
});
await p.status();
p.close();
}
await runEcho();
await runEcho();
for (let i = 0; i < 10; i++) {
await runEcho();
}
await runEcho2();