New approach to setup user-env on UNIX

[edassis]

An 'env' file is created now, heavily inspired by the rust's cargo approach (See #65), located in '~/.config/godotenv/env'. It's generated by GodotEnv and contains commands in 'sh' syntax to set up the user shell.

The new 'env' file is responsible for:

• Prepend the GodotEnv bin folder path into PATH;
• 'Export' GODOT env-var pointing to Godot symlink.

We expect all POSIX compatible shells (or able to interpret 'sh' syntax in some way, like fish shell) to be able to load the new GodotEnv's env file.

An auxiliary file was added to set up the 'fish' shell too.

Note

In the main branch, GodotEnv tryes to configure "PATH" and "GODOT" env-vars using heuristcs to detect the user default shell. But it showed itself cumbersome and only supported bash and zsh shells. The new approach uses sh shell when necessary (for GetUserEnv() basically) and is indiferrent about the user's default shell, what I think it's a big plus.

Although, with the changes in this PR, currently GodotEnv users will have PATH and GODOT exports in their shell rc file and those will not be cleaned up automatically. I thought in making a note about it in the release telling people to just removes those lines. We could do some logic trying to detect it and clean them, but for the sake of making the code simple I prefered to not do it (what your thoughts?), and in case the user not removes them it will not affect the GodotEnv's functionality.

Fixes #65

Let me know what you think.

---

The relevant commit it's the last one (has the same title as this PR), the others commits are from PR #93 waiting for merge. (rebased onto main)

[jolexxa]

If this is based off of #93, can you change the target branch to point into it? Then, when we merge #93, the target branch will auto-change to main. This should make the diff cleaner in the meantime if I am not mistaken.

[edassis]

I tried to adjust the base branch, but as the fix/msgs_windows its on my fork, I cant reference it in this PR. But, after merging the other PR, I think the diff here will adjust itself too.

[jolexxa]

@edassis okay, didn't realize it couldn't be done from a fork. Makes sense. We'll get #93 merged in and then I'll review this.

[jolexxa]

and in case the user not removes them it will not affect the GodotEnv's functionality.

That sounds perfectly fine. Now that #93 is merged, I'll take a closer look at this.

[jolexxa]

@edassis Oh, this might need to be re-based off main since you had updated the other PR since this one was branched off that. Or at least updated however you prefer.

[edassis]

Did a rebase onto main. I don't know why the CI is failing for the PR. The one started from my branch seems fine: https://github.com/edassis/GodotEnv/actions/workflows/install_test.yaml

The install test failed at the checksum verification. Could it be a network instability on the Github CI? It's possible to force a rerun?

[edassis]

As discussed, removed the fish env setup and prepared a message telling the user that maybe he will need to adjust GODOT and PATH manually depending on his shell. The message only shows on UNIX systems:

Windows

Linux

[jolexxa]

🥳 ty!