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feat(install): Add PIXI_NO_PATH_UPDATE for PATH update suppression #692

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chawyehsu
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Close #686

The PR mainly adds the option of using a PIXI_NO_PATH_UPDATE environment variable to suppress PATH update, when installing pixi from install script.

Besides the option added, since the PR is about environment variable, the way of updating PATH in the PowerShell install script has also been modified from using [Environment]::SetEnvironmentVariable to set environment variable to get and update environment variable from Windows registry.

This change doesn't affect pixi installation directly and is primarily to address a potential issue that SetEnvironmentVariable expands all environment variables and this behavior may not be welcomed in some cases.

$Env:PATH
#> %USERPROFILE%\bin;

# when using `SetEnvironmentVariable` to update PATH, `%USERPROFILE%` will be expanded
#> C:\Users\userA\bin;C:\pixi\bin

# when using registry to update PATH, `%USERPROFILE%` will be kept unexpanded
#> %USERPROFILE%\bin;C:\pixi\bin

Related code are copied from ScoopInstaller/Install I'm maintaining.

Signed-off-by: Chawye Hsu <su+git@chawyehsu.com>
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@ruben-arts ruben-arts left a comment

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Thanks!

)

Set-StrictMode -Version Latest

function Publish-Env {
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Cool wasn't aware you could do this!

@ruben-arts ruben-arts merged commit ce255da into prefix-dev:main Jan 20, 2024
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@chawyehsu chawyehsu deleted the feature/install-no-path-update branch January 28, 2024 13:52
@mariusvniekerk
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This PR breaks the installer for linux in some cases where it fails with

bash: line 83: PIXI_NO_PATH_UPDATE: unbound variable

wolfv pushed a commit that referenced this pull request Jan 30, 2024
The linux installer was broken by #692 and fails currently with `bash: line 83: PIXI_NO_PATH_UPDATE: unbound variable`
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add env var option in install.sh to not update ~/.profile
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