oh-my-posh/website/docs/configuration/templates.md
2022-05-25 12:22:35 +02:00

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templates Templates Templates

Every segment has a template property to tweak the text that is displayed. Under the hood, this uses go's text/template feature extended with sprig and offers a few standard properties to work with.

Global properties

  • .Root: boolean - is the current user root/admin or not
  • .PWD: string - the current working directory
  • .Folder: string - the current working folder
  • .Shell: string - the current shell name
  • .ShellVersion: string - the current shell version
  • .UserName: string - the current user name
  • .HostName: string - the host name
  • .Code: int - the last exit code
  • .OS: string - the operating system
  • .WSL: boolean - in WSL yes/no

Environment variables

  • .Env.VarName: string - Any environment variable where VarName is the environment variable name

:::tip If you're using PowerShell, you can override a function to populate environment variables before the prompt is rendered.

function Set-EnvVar {
    $env:POSH=$(Get-Date)
}
New-Alias -Name 'Set-PoshContext' -Value 'Set-EnvVar' -Scope Global -Force

:::

Template logic

Template Description
{{.}} Root element.
{{.Var}} Variable in a struct, where Var is a variable.
{{- .Var -}} Remove extra white space surrounding the .Var variable and remove the newline. Either side is fine too.
{{ $planet := "Earth"}} {{ $planet }} Store a value in a custom variable to reference later. Note that .$ is used to reference the global/parent context, like in the full example below with $.
Hi {{if .Name}} {{.Name}} {{else}} visitor {{end}} If-else statement. If will will evaluate whether or not the argument is empty. Using the elseif conditional is also an option. The not negation is available too.
{{if and .Arg1 .Arg2}} both complete. {{else}} incomplete. {{end}} The and function compares multiple arguments to return the boolean AND (if arg1 then arg2 else arg1). Both arguments are evaluated. The or function compares multiple arguments to return the boolean OR. Similar to if arg1 then arg1 else arg2, so arg2 will never be evaluated if arg1 is false (not empty).
{{with .Var}} {{end}} With statement, where Var is a variable. It skips the block if the variable is absent.
{{range .Array}} {{end}} Range statement, where Array is an array, slice, map, or channel.
{{ lt 3 4 }} This lt comparison function evaluates to true since 3 is less than 4 (other boolean operators: eq, ne, lt, le, gt, ge).

Helper functions

Sprig

Oh My Posh has all sprig functions included, meaning you can do operations on strings, paths and a lot of other manipulations straight from your template. Have a look at their documentation for available options and how to use them.

Custom

Template Description
{{ url .UpstreamIcon .UpstreamURL }} Create a hyperlink to a website to open your default browser (needs terminal support).
{{ path .Path .Location }} Create a link to a folder to open your file explorer (needs terminal support).
{{ secondsRound 3600 }} Round seconds to a time indication. In this case the output is 1h.
{{ if glob "*.go" }}OK{{ else }}NOK{{ end }} Exposes filepath.Glob as a boolean template function.

Cross segment template properties

To use another segment's template properties in a template, you can make use of {{ .Segments.Segment }} in your template where .Segment is the name of the segment you want to use with the first letter uppercased.

If you want to for example use the git segment's .UpstreamGone property in the exit segment, you can do so like this:

"template": " {{ if .Segments.Git.UpstreamGone }}\uf7d3{{ else if gt .Code 0 }}\uf00d{{ else }}\uf00c{{ end }} "

:::warning For this to work, the segment you refer to needs to be in your config. The above example won't work if your config does not contain a git segment as Oh My Posh only populates the properties when it needs to. :::

Text decoration

You can make use of the following syntax to decorate text:

  • <b>bold</b>: renders bold as bold text
  • <u>underline</u>: renders underline as underlined text
  • <o>overline</o>: renders overline as overlined text
  • <i>italic</i>: renders italic as italic text
  • <s>strikethrough</s>: renders strikethrough as strikethrough text
  • <d>dimmed</d>: renders dimmed as dimmed text
  • <f>blink</f>: renders blink as blinking (flashing) text
  • <r>reversed</r>: renders reversed as reversed text

This can be used in templates and icons/text inside your config.

Hiding segments

To hide a whole segment including the leading and trailing symbol based on a template, the template must render into an empty string. This can be achieved with conditional statements (if). The example below will render a diamond segment, only if the environment variable POSH_ENV is not empty.

Only spaces are excluded, meaning you can still add line breaks and tabs if that is something you're after.

{
  "type": "text",
  "style": "diamond",
  "leading_diamond": " \ue0b6",
  "trailing_diamond": "\ue0b4",
  "foreground": "#ffffff",
  "background": "#d53c14",
  "template": "{{ if .Env.POSH_ENV }} \uf8c5 {{ .Env.POSH_ENV }} {{ end }}"
}