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# Nushell Environment Config File
#
# version = "0.99.1"

def create_left_prompt [] {
    let dir = match (do --ignore-errors { $env.PWD | path relative-to $nu.home-path }) {
        null => $env.PWD
        '' => '~'
        $relative_pwd => ([~ $relative_pwd] | path join)
    }

    let path_color = (if (is-admin) { ansi red_bold } else { ansi green_bold })
    let separator_color = (if (is-admin) { ansi light_red_bold } else { ansi light_green_bold })
    let path_segment = $"($path_color)($dir)(ansi reset)"

    $path_segment | str replace --all (char path_sep) $"($separator_color)(char path_sep)($path_color)"
}

def create_right_prompt [] {
    # create a right prompt in magenta with green separators and am/pm underlined
    let time_segment = ([
        (ansi reset)
        (ansi magenta)
        (date now | format date '%x %X') # try to respect user's locale
    ] | str join | str replace --regex --all "([/:])" $"(ansi green)${1}(ansi magenta)" |
        str replace --regex --all "([AP]M)" $"(ansi magenta_underline)${1}")

    let last_exit_code = if ($env.LAST_EXIT_CODE != 0) {([
        (ansi rb)
        ($env.LAST_EXIT_CODE)
    ] | str join)
    } else { "" }

    ([$last_exit_code, (char space), $time_segment] | str join)
}

# Use nushell functions to define your right and left prompt
$env.PROMPT_COMMAND = {|| create_left_prompt }
# FIXME: This default is not implemented in rust code as of 2023-09-08.
$env.PROMPT_COMMAND_RIGHT = {|| create_right_prompt }

# The prompt indicators are environmental variables that represent
# the state of the prompt
$env.PROMPT_INDICATOR = {|| "> " }
$env.PROMPT_INDICATOR_VI_INSERT = {|| ": " }
$env.PROMPT_INDICATOR_VI_NORMAL = {|| "> " }
$env.PROMPT_MULTILINE_INDICATOR = {|| "::: " }

# If you want previously entered commands to have a different prompt from the usual one,
# you can uncomment one or more of the following lines.
# This can be useful if you have a 2-line prompt and it's taking up a lot of space
# because every command entered takes up 2 lines instead of 1. You can then uncomment
# the line below so that previously entered commands show with a single `🚀`.
# $env.TRANSIENT_PROMPT_COMMAND = {|| "🚀 " }
# $env.TRANSIENT_PROMPT_INDICATOR = {|| "" }
# $env.TRANSIENT_PROMPT_INDICATOR_VI_INSERT = {|| "" }
# $env.TRANSIENT_PROMPT_INDICATOR_VI_NORMAL = {|| "" }
# $env.TRANSIENT_PROMPT_MULTILINE_INDICATOR = {|| "" }
# $env.TRANSIENT_PROMPT_COMMAND_RIGHT = {|| "" }

# Specifies how environment variables are:
# - converted from a string to a value on Nushell startup (from_string)
# - converted from a value back to a string when running external commands (to_string)
# Note: The conversions happen *after* config.nu is loaded
$env.ENV_CONVERSIONS = {
    "PATH": {
        from_string: { |s| $s | split row (char esep) | path expand --no-symlink }
        to_string: { |v| $v | path expand --no-symlink | str join (char esep) }
    }
    "Path": {
        from_string: { |s| $s | split row (char esep) | path expand --no-symlink }
        to_string: { |v| $v | path expand --no-symlink | str join (char esep) }
    }
}

# Directories to search for scripts when calling source or use
# The default for this is $nu.default-config-dir/scripts
$env.NU_LIB_DIRS = [
    ($nu.default-config-dir | path join 'scripts') # add <nushell-config-dir>/scripts
    ($nu.data-dir | path join 'completions') # default home for nushell completions
]

# Directories to search for plugin binaries when calling register
# The default for this is $nu.default-config-dir/plugins
$env.NU_PLUGIN_DIRS = [
    ($nu.default-config-dir | path join 'plugins') # add <nushell-config-dir>/plugins
]

# To add entries to PATH (on Windows you might use Path), you can use the following pattern:
# $env.PATH = ($env.PATH | split row (char esep) | prepend '/some/path')
# An alternate way to add entries to $env.PATH is to use the custom command `path add`
# which is built into the nushell stdlib:
use std "path add"
# $env.PATH = ($env.PATH | split row (char esep))
# path add /some/path
# path add ($env.CARGO_HOME | path join "bin")
try {
  if (uname | get "operating-system") == "Darwin" {
    $env.PATH = ["/opt/homebrew/bin" "/opt/X11/bin" "/opt/local/bin" "/opt/local/sbin"] ++ $env.PATH
  }
}
path add ($env.HOME | path join ".local" "bin")
$env.PATH = ($env.PATH | uniq)

# To load from a custom file you can use:
# source ($nu.default-config-dir | path join 'custom.nu')

if (which carapace | is-not-empty) {
    $env.CARAPACE_BRIDGES = 'zsh,fish,bash,inshellisense' # optional
    mkdir ~/.cache/carapace
    carapace _carapace nushell | save --force ~/.cache/carapace.nu
}
mkdir ~/.cache/zoxide
zoxide init nushell --cmd=cd | save --force ~/.cache/zoxide.nu
starship init nu | save --force ~/.cache/starship.nu

if (not ("/var/run/docker.sock" | path exists)) and (not ((uname | get operating-system) == "Darwin")) {
    $env.DOCKER_HOST = $"unix://($env | default $"/run/($env.USER)" XDG_RUNTIME_DIR | get XDG_RUNTIME_DIR)/docker.sock"
}

$env.XDG_CACHE_HOME = $"($env.HOME)/.cache"
$env.XDG_DATA_HOME = $"($env.HOME)/.local/share"

do --env {
    let ssh_agent_file = (
        $nu.temp-path | path join $"ssh-agent-($env.USER).nuon"
    )

    if ($ssh_agent_file | path exists) {
        let ssh_agent_env = open ($ssh_agent_file)
        if (ps | where pid == ($ssh_agent_env.SSH_AGENT_PID) | is-not-empty) {
            load-env $ssh_agent_env
            return
        } else {
            rm $ssh_agent_file
        }
    }

    let ssh_agent_env = ^ssh-agent -c
        | lines
        | first 2
        | parse "setenv {name} {value};"
        | transpose --header-row
        | into record
    load-env $ssh_agent_env
    $ssh_agent_env | save --force $ssh_agent_file
}