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fix(fnm): simplify config and respect package.json #1192

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Merged
fdncred merged 1 commit into from
Dec 11, 2025
+6 −21
Merged

fix(fnm): simplify config and respect package.json #1192

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27 changes: 6 additions & 21 deletions modules/fnm/fnm.nu
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Original file line number Diff line number Diff line change
@@ -1,25 +1,8 @@
export-env {
def fnm-env [] {
mut env_vars = {}
let pwsh_vars = (
^fnm env --shell power-shell | lines | parse "$env:{key} = \"{value}\""
)

# fnm-prefixed vars
for v in ($pwsh_vars | slice 1..) {
$env_vars = ($env_vars | insert $v.key $v.value)
}

# path
let env_used_path = ($env | columns | where { str downcase | $in == "path" } | get 0)
let path_value = ($pwsh_vars | get 0.value | split row (char esep))
$env_vars = ($env_vars | insert $env_used_path $path_value)

return $env_vars
}

if not (which fnm | is-empty) {
fnm-env | load-env
^fnm env --json | from json | load-env

$env.PATH = $env.PATH | prepend ($env.FNM_MULTISHELL_PATH | path join (if $nu.os-info.name == 'windows' {''} else {'bin'}))

$env.config = (
$env.config?
Expand All @@ -32,11 +15,13 @@ export-env {
$env.config.hooks.env_change.PWD | any { try { get __fnm_hook } catch { false } }
)
if not $__fnm_hooked {
let version_files = [.nvmrc .node-version package.json]

$env.config.hooks.env_change.PWD = (
$env.config.hooks.env_change.PWD | append {
__fnm_hook: true
code: {|before, after|
if ('FNM_DIR' in $env) and ([.nvmrc .node-version] | path exists | any {|it| $it }) {
if ('FNM_DIR' in $env) and ($version_files | path exists | any {|it| $it }) {
^fnm use
}
}
Expand Down