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document environment variable for starship prompt (#4691)

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It would appear that starship needs an environment variable set to output the prompt correctly on a per shell basis.
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Michael Rutter 2022-03-01 23:38:35 +00:00 committed by GitHub
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docs/3rd_Party_Prompts.md
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@ -32,10 +32,11 @@ let-env PROMPT_COMMAND = { oh-my-posh --config ~/.poshthemes/M365Princess.omp.js
1. Follow the links above and install starship. 1. Follow the links above and install starship.
2. Install nerdfonts depending on your preferences. 2. Install nerdfonts depending on your preferences.
3. If you want the default ticking clock with date & time on the right prompt execut this command `hide PROMPT_COMMAND_RIGHT` 3. Set the starship shell environment variable to `nu` by running this commend `let-env STARSHIP_SHELL = "nu"`
4. If you don't want the default indicator, you can run this command `let-env PROMPT_INDICATOR = " "` 4. If you want the default ticking clock with date & time on the right prompt execut this command `hide PROMPT_COMMAND_RIGHT`
5. Set starship as your left prompt with this command `let-env PROMPT_COMMAND = { starship prompt --cmd-duration $env.CMD_DURATION_MS --status $env.LAST_EXIT_CODE | str trim }`. Note that you may not have to use `str trim` in the nushell prompt if you disable starship's default newline setting with this entry in the starship.toml file `add_newline = false`. There have been reports that this might not play nice with nushell prompts. We're still testing. 5. If you don't want the default indicator, you can run this command `let-env PROMPT_INDICATOR = " "`
6. Since nushell supports a right prompt you can also play around with starship's ability to set a right prompt. Setting the right prompt in nushell is identical to setting the left prompt however you use `PROMPT_COMMAND_RIGHT`. 6. Set starship as your left prompt with this command `let-env PROMPT_COMMAND = { starship prompt --cmd-duration $env.CMD_DURATION_MS --status $env.LAST_EXIT_CODE | str trim }`. Note that you may not have to use `str trim` in the nushell prompt if you disable starship's default newline setting with this entry in the starship.toml file `add_newline = false`. There have been reports that this might not play nice with nushell prompts. We're still testing.
7. Since nushell supports a right prompt you can also play around with starship's ability to set a right prompt. Setting the right prompt in nushell is identical to setting the left prompt however you use `PROMPT_COMMAND_RIGHT`.
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