Using the extension

[nimski]

Description

Is there a way to run Austin with sudo on MacOS using the VS Code extension? I'm able to run Austin from the terminal directly, but when attempting to run it with sudo using the following script, I get the error message austin process exited with code 1.

{
"label": "pytest with austin",
"type": "austin",
"command": ["sudo"],
"args": [
"${workspaceRoot}/.venv/bin/python",
"-m",
"pytest",
"-k",
""TEST NAME""],
"problemMatcher": []
},

Expected behavior: I'd expect Austin to run the task with sudo (the only way to run it in MacOS) and pipe it to the flamegraph viz.

Actual behavior: Exits with austin process exited with code 1.

Reproduces how often: Every time.

Versions

Version 3.3.0. MacOS 12.3 (Monterey)

Thanks for your help!

[P403n1x87]

@nimski I think you might find this comment useful:

P403n1x87/austin-vscode#24 (comment)

The idea is to allow Austin to run with sudo without password by adding a rule to the sudoers file, and then actually launch the sudo command instead of Austin itself.

[nimski]

Thanks very much @P403n1x87 . Following that example Austin indeed can run without sudo and I'm able to successfully create a profile with -o xxx.austin and load it up in the flame graph viewer. However, I'm unable to use the "austin" task to pipe it directly through the VSCode extension. If I try I get the error message: austin process exited with code 33 whereas the same command works from the VSCode terminal.

[P403n1x87]

Ah that's weird 🤔 . I have just tried with the following in .vscode/tasks.js

{
	"version": "2.0.0",
	"tasks": [
		{
			"type": "austin",
			"label": "Test Austin tasks",
			"command": [
				"sudo"
			],
			"args": [
				"python3.9",
				"-c",
				"from time import sleep; sleep(2)",
			]
		},
	]
}

and I've got the following flame graph

Could you maybe try with the absolute path to python? Error 33 normally indicates failure to fork the subprocess, so perhaps Austin is not being able to find the interpreter from VS Code for some reasons?

[nimski]

That was it! It's working well now. Thatnks for your help.