prevent same entry in $env.PATH

[joergsch]

if one extends PATH in env.nu and start a different shell before launching nu, one might start to collect the same path multiple times in PATH these lines construct the new value (based on home directory and the separator based on the os)

[fdncred]

Seems like this part $env.my_path = ... should be let my_path = .... I'm not sure why we'd create an env var just to add it to the $env.PATH.

[joergsch]

Seems like this part $env.my_path = ... should be let my_path = .... I'm not sure why we'd create an env var just to add it to the $env.PATH.

There is no benefit creating an additional env var.
my bad (still learning nu)

[amtoine]

thanks for adding this, that can be quite handy to not have multiple times the same path in $env.PATH for some applications 😋

just two remarks and i'd be good to go 😌

[amtoine]

@joergsch
and if you want to go extra fancy, you can define a more general custom command for this 😏

def prepend-if-not-in [element: any]: list<any> -> list<any> {
    if $element in $in { $in } else { $in | prepend $element }
}

$env.PATH = ($env.PATH | prepend-if-not-in ($nu.home-path | path join "bin"))

[amtoine]

thanks for this new section @joergsch, let's land this 🙏