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opt
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hc_python
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lib64
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python3.8
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site-packages
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virtualenv
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activation
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nushell
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Filename :
activate.nu
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# virtualenv activation module # Activate with `overlay use activate.nu` # Deactivate with `deactivate`, as usual # # To customize the overlay name, you can call `overlay use activate.nu as foo`, # but then simply `deactivate` won't work because it is just an alias to hide # the "activate" overlay. You'd need to call `overlay hide foo` manually. export-env { def is-string [x] { ($x | describe) == 'string' } def has-env [...names] { $names | each {|n| $n in $env } | all {|i| $i == true} } # Emulates a `test -z`, but btter as it handles e.g 'false' def is-env-true [name: string] { if (has-env $name) { # Try to parse 'true', '0', '1', and fail if not convertible let parsed = (do -i { $env | get $name | into bool }) if ($parsed | describe) == 'bool' { $parsed } else { not ($env | get -i $name | is-empty) } } else { false } } let virtual_env = '__VIRTUAL_ENV__' let bin = '__BIN_NAME__' let is_windows = ($nu.os-info.family) == 'windows' let path_name = (if (has-env 'Path') { 'Path' } else { 'PATH' } ) let venv_path = ([$virtual_env $bin] | path join) let new_path = ($env | get $path_name | prepend $venv_path) # If there is no default prompt, then use the env name instead let virtual_env_prompt = (if ('__VIRTUAL_PROMPT__' | is-empty) { ($virtual_env | path basename) } else { '__VIRTUAL_PROMPT__' }) let new_env = { $path_name : $new_path VIRTUAL_ENV : $virtual_env VIRTUAL_ENV_PROMPT : $virtual_env_prompt } let new_env = (if (is-env-true 'VIRTUAL_ENV_DISABLE_PROMPT') { $new_env } else { # Creating the new prompt for the session let virtual_prefix = $'(char lparen)($virtual_env_prompt)(char rparen) ' # Back up the old prompt builder let old_prompt_command = (if (has-env 'PROMPT_COMMAND') { $env.PROMPT_COMMAND } else { '' }) let new_prompt = (if (has-env 'PROMPT_COMMAND') { if 'closure' in ($old_prompt_command | describe) { {|| $'($virtual_prefix)(do $old_prompt_command)' } } else { {|| $'($virtual_prefix)($old_prompt_command)' } } } else { {|| $'($virtual_prefix)' } }) $new_env | merge { PROMPT_COMMAND : $new_prompt VIRTUAL_PREFIX : $virtual_prefix } }) # Environment variables that will be loaded as the virtual env load-env $new_env } export alias pydoc = python -m pydoc export alias deactivate = overlay hide activate