__ __ __ __ _____ _ _ _____ _ _ _
| \/ | \ \ / / | __ \ (_) | | / ____| | | | |
| \ / |_ __\ V / | |__) | __ ___ ____ _| |_ ___ | (___ | |__ ___| | |
| |\/| | '__|> < | ___/ '__| \ \ / / _` | __/ _ \ \___ \| '_ \ / _ \ | |
| | | | |_ / . \ | | | | | |\ V / (_| | || __/ ____) | | | | __/ | |
|_| |_|_(_)_/ \_\ |_| |_| |_| \_/ \__,_|\__\___| |_____/|_| |_|\___V 2.1
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For_More_Tools:
# 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 better 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