93 lines
2.7 KiB
Text
93 lines
2.7 KiB
Text
# 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 [name: string] {
|
|
$name in (env).name
|
|
}
|
|
|
|
let is_windows = ($nu.os-info.name | str downcase) == 'windows'
|
|
let virtual_env = '__VIRTUAL_ENV__'
|
|
let bin = '__BIN_NAME__'
|
|
let path_sep = (char esep)
|
|
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 ('__VIRTUAL_PROMPT__' == '') {
|
|
$'(char lparen)($virtual_env | path basename)(char rparen) '
|
|
} else {
|
|
'(__VIRTUAL_PROMPT__) '
|
|
}
|
|
|
|
# Back up the old prompt builder
|
|
let old_prompt_command = if (has-env 'VIRTUAL_ENV') and (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 loaded as the virtual env
|
|
load-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
|
|
}
|
|
}
|
|
|
|
export alias pydoc = python -m pydoc
|
|
export alias deactivate = overlay hide activate
|