[Fall 2021] Step 3: Automate Pysa Quickstart guide for new users to quickly initialize a environment for Pysa

[0xedward]

Automate the steps in the Quickstart and add some logic to automatically handle and fix some common issues, so the automation is completed, the user has their environment set up to run Pysa (pyre analyze)

Feel free to pick whatever automation method (e.g. script, ansible, etc.) you think is best :)

Submitting a PR

We use the following linters internally, so to save everyone's time, please make sure you run the following linters locally and fix errors related to the files you modified before submitting a PR:

black && usort format . && flake8

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pip install flake8 usort black==21.4b2

[abishekvashok]

Claiming this one!

[abishekvashok]

Just to be sure, @0xedward , is this only about:

• running pyre infer -I if --pysa arg is passed
• and prompting to enter the taint_models_path if not found automatically if --pysa arg is passed

Or did I miss anything?

[0xedward]

Ah I think pyre init has some logic to set up taint_models_path. If the user has a venv activated, I think by default it sets the path to {venv_path}/lib/

Sorry I'm realizing now that this issue might be better as a script instead of a built-in command in Pyre, since the goal of the issue was to automate the setup steps in the Quickstart guide and have some automatic error handling for common issues people run into. I'll update the issue to better describe this

[abishekvashok]

Closed via https://github.com/facebook/pyre-check/commit/e7d5d7576d4829a6f01c81962f368d317ad09472