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Haskell

website/docs/segments/languages/haskell.mdx

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What

Display the currently active Glasgow Haskell Compiler (GHC) version.

Sample Configuration

import Config from "@site/src/components/Config.js";

<Config data={{ type: "haskell", style: "powerline", powerline_symbol: "\uE0B0", foreground: "#906cff", background: "#100e23", template: " \ue61f {{ .Full }}", }} />

Options

NameTypeDefaultDescription
home_enabledbooleanfalsedisplay the segment in the HOME folder or not
fetch_versionbooleantruefetch the GHC version
cache_durationstringnonethe duration for which the version will be cached. The duration is a string in the format 1h2m3s and is parsed using the time.ParseDuration function from the Go standard library. To disable the cache, use none
missing_command_textstringtext to display when the command is missing
display_modestringcontext<ul><li>always: the segment is always displayed</li><li>files: the segment is only displayed when file extensions listed are present</li><li>context: displays the segment when the environment or files is active</li></ul>
version_url_templatestringa go text/template template that creates the URL of the version info / release notes
stack_ghc_modestringneverdetermines when to use stack ghc to retrieve the version information. Using stack ghc will decrease performance.<ul><li>never: never use stack ghc</li><li>package: only use stack ghc when stack.yaml is in the root of the </li><li>always: always use stack ghc</li></ul>
extensions[]string*.hs, *.lhs, stack.yaml, package.yaml, *.cabal, cabal.projectallows to override the default list of file extensions to validate
folders[]stringallows to override the list of folder names to validate
tooling[]stringghcthe tooling to use for fetching the version. Available options: ghc, stack

Template (info)

:::note default template

template
{{ if .Error }}{{ .Error }}{{ else }}{{ .Full }}{{ end }}

:::

Properties

NameTypeDescription
.Fullstringthe full version
.Majorstringmajor number
.Minorstringminor number
.Patchstringpatch number
.URLstringURL of the version info / release notes
.Errorstringerror encountered when fetching the version string
.StackGhcbooleantrue if stack ghc was used, otherwise false