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93 lines
2.5 KiB
93 lines
2.5 KiB
2 years ago
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# This command prepares the required environment variables
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def-env activate-virtualenv [] {
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def is-string [x] {
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($x | describe) == 'string'
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}
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def has-env [name: string] {
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$name in (env).name
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}
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let is_windows = ((sys).host.name | str downcase) == 'windows'
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let virtual_env = '/home/arthur/Documents/drive_sync/venv'
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let bin = 'bin'
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let path_sep = ':'
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let path_name = if $is_windows {
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if (has-env 'Path') {
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'Path'
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} else {
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'PATH'
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}
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} else {
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'PATH'
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}
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let old_path = (
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if $is_windows {
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if (has-env 'Path') {
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$env.Path
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} else {
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$env.PATH
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}
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} else {
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$env.PATH
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} | if (is-string $in) {
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# if Path/PATH is a string, make it a list
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$in | split row $path_sep | path expand
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} else {
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$in
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}
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)
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let venv_path = ([$virtual_env $bin] | path join)
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let new_path = ($old_path | prepend $venv_path | str collect $path_sep)
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# Creating the new prompt for the session
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let virtual_prompt = if ('' == '') {
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$'(char lparen)($virtual_env | path basename)(char rparen) '
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} else {
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'() '
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}
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# Back up the old prompt builder
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let old_prompt_command = if (has-env 'VIRTUAL_ENV') && (has-env '_OLD_PROMPT_COMMAND') {
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$env._OLD_PROMPT_COMMAND
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} else {
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if (has-env 'PROMPT_COMMAND') {
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$env.PROMPT_COMMAND
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} else {
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''
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}
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}
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# If there is no default prompt, then only the env is printed in the prompt
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let new_prompt = if (has-env 'PROMPT_COMMAND') {
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if ($old_prompt_command | describe) == 'block' {
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{ $'($virtual_prompt)(do $old_prompt_command)' }
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} else {
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{ $'($virtual_prompt)($old_prompt_command)' }
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}
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} else {
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{ $'($virtual_prompt)' }
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}
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# Environment variables that will be batched loaded to the virtual env
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let new_env = {
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$path_name : $new_path
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VIRTUAL_ENV : $virtual_env
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_OLD_VIRTUAL_PATH : ($old_path | str collect $path_sep)
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_OLD_PROMPT_COMMAND : $old_prompt_command
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PROMPT_COMMAND : $new_prompt
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VIRTUAL_PROMPT : $virtual_prompt
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}
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# Activate the environment variables
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load-env $new_env
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}
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# Activate the virtualenv
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activate-virtualenv
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alias pydoc = python -m pydoc
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alias deactivate = source '/home/arthur/Documents/drive_sync/venv/bin/deactivate.nu'
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