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