Macbook
92 lines
3.2 KiB
Nu
92 lines
3.2 KiB
Nu
# virtualenv activation module:
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# - Activate with `overlay use activate.nu`
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# - Deactivate with `deactivate`, as usual
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#
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# To customize the overlay name, call `overlay use activate.nu as foo`, but then `deactivate` won't work —
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# you'd need to run `overlay hide foo` manually. Do not activate with `use activate.nu *`; that does not
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# create an overlay and deactivation will fail.
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module warning {
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export-env {
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const file = path self
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error make -u {
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msg: $"`($file | path basename)` is meant to be used with `overlay use`, not `source`"
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}
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}
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}
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use warning
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export-env {
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let nu_ver = (version | get version | split row '.' | take 2 | each { into int })
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if $nu_ver.0 == 0 and $nu_ver.1 < 106 {
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error make {
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msg: 'virtualenv Nushell activation requires Nushell 0.106 or greater.'
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}
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}
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def is-string [x] {
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($x | describe) == 'string'
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}
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def has-env [...names] {
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$names | each {|n| $n in $env } | all {|i| $i }
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}
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def is-env-true [name: string] {
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if (has-env $name) {
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let val = ($env | get --optional $name)
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if ($val | describe) == 'bool' {
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$val
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} else {
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not ($val | is-empty)
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}
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} else {
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false
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}
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}
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let virtual_env = __VIRTUAL_ENV__
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let bin = __BIN_NAME__
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let path_name = if (has-env 'Path') { 'Path' } else { 'PATH' }
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let venv_path = ([$virtual_env $bin] | path join)
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let new_path = ($env | get $path_name | prepend $venv_path)
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let virtual_env_prompt = if (__VIRTUAL_PROMPT__ | is-empty) {
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($virtual_env | path basename)
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} else {
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__VIRTUAL_PROMPT__
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}
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let old_pkg_config_path = if (has-env 'PKG_CONFIG_PATH') { $env.PKG_CONFIG_PATH } else { '' }
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let new_pkg_config_path = $'($virtual_env)/lib/pkgconfig:($old_pkg_config_path)'
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let new_env = { $path_name: $new_path VIRTUAL_ENV: $virtual_env VIRTUAL_ENV_PROMPT: $virtual_env_prompt PKG_CONFIG_PATH: $new_pkg_config_path }
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if (has-env 'TCL_LIBRARY') {
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let $new_env = $new_env | insert TCL_LIBRARY __TCL_LIBRARY__
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}
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if (has-env 'TK_LIBRARY') {
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let $new_env = $new_env | insert TK_LIBRARY __TK_LIBRARY__
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}
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let old_prompt_command = if (has-env 'PROMPT_COMMAND') { $env.PROMPT_COMMAND } else { '' }
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let new_env = if (is-env-true 'VIRTUAL_ENV_DISABLE_PROMPT') {
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$new_env
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} else {
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let virtual_prefix = $'(char lparen)($virtual_env_prompt)(char rparen) '
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let new_prompt = if (has-env 'PROMPT_COMMAND') {
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if ('closure' in ($old_prompt_command | describe)) {
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{|| $'($virtual_prefix)(do $old_prompt_command)' }
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} else {
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{|| $'($virtual_prefix)($old_prompt_command)' }
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}
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} else {
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{|| $'($virtual_prefix)' }
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}
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$new_env | merge { PROMPT_COMMAND: $new_prompt VIRTUAL_PREFIX: $virtual_prefix }
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}
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load-env $new_env
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}
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export alias pydoc = python -m pydoc
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# If deactivate errors "not an active overlay": activate with `overlay use activate.nu` not `use activate.nu *`; for custom names use `overlay hide NAME`
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export alias deactivate = overlay hide activate
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