Spike - Use only conda activate, stop calling source

[luabud]

No description provided.

[kimadeline]

⚠️ Users will need to have an initialized terminal first (with conda init) or it will show this error message:

CommandNotFoundError: Your shell has not been properly configured to use 'conda activate'.
To initialize your shell, run

    $ conda init <SHELL_NAME>

Currently supported shells are:
  - bash
  - fish
  - tcsh
  - xonsh
  - zsh
  - powershell

See 'conda init --help' for more information and options.

IMPORTANT: You may need to close and restart your shell after running 'conda init'.

👉 To check if the terminal is initialized look for the CONDA_SHLVL environment variable (conda/conda#8760 (comment))

👉 To initialize conda for the user there are 2 options:

• enable conda for the current user and all future shell instances by calling conda init <shell name>, after which they might have to close and restart the terminal
• activate conda for the current shell session by calling eval "$(<settings.condaPath>) shell.<shell name> hook" (see this comment and the docs)

---

Prescribed solution

Update getActivationCommandsForInterpreter in src/client/common/terminal/environmentActivationProviders/condaActivationProvider.ts:

Replace

vscode-python/src/client/common/terminal/environmentActivationProviders/condaActivationProvider.ts

Lines 70 to 75 in f9c1f97

	const interpreterPath = await this.condaService.getCondaFileFromInterpreter(pythonPath, envInfo.name);
	if (interpreterPath) {
	const activatePath = path.join(path.dirname(interpreterPath), 'activate').fileToCommandArgument();
	const firstActivate = this.platform.isWindows ? activatePath : `source ${activatePath}`;
	return [firstActivate, `conda activate ${condaEnv.toCommandArgument()}`];
	}

with

return [`conda activate ${condaEnv.toCommandArgument()}`];

[DonJayamanne]

conda init ,

If we go down this path, we might want to prompt the user to do this. After all, this changes how their default shell behaves & it could be a big deal for those who live in the terminal world (changes to path, slows down initializing shell) .

[kimadeline]

After discussion with @brettcannon and @luabud , we're not going to introduce this change in the existing codebase, but rather use it when we refactor environment activation (tl;dr not gonna fix the old code).