Refactor function names and fix installing 7zip locally if already globally available

[r15ch13]

Fixes:

• Prevents installing 7zip/lessmsi/innounp locally if they are already available globally

Additions:

• Get-HelperPath
• Test-HelperInstalled
• Get-LessmsiPath Get-HelperPath -Helper Lessmsi
• Test-LessmsiInstalled Test-HelperInstalled -Helper Lessmsi
• Get-InnounpPath Get-HelperPath -Helper Innounp
• Test-InnounpInstalled Test-HelperInstalled -Helper Innounp
• Get-HelperPath -Helper Dark
• Test-HelperInstalled -Helper Dark

Added tests for:

• Get-AppFilePath
• Get-HelperPath
• Test-HelperInstalled
• Test-Aria2Enabled
• Test-CommandAvailable

Refactors:

• aria2_path > Get-HelperPath -Helper Aria2
• aria2_installed > Test-HelperInstalled -Helper Aria2
• aria2_enabled > Test-Aria2Enabled
• 7zip_path > Get-HelperPath -Helper 7zip
• 7zip_installed > Test-HelperInstalled -Helper 7zip
• Expand-7ZipArchive > Expand-7zipArchive
• Test-7ZipRequirement > Test-7zipRequirement
• Expand-MSIArchive > Expand-MsiArchive
• Test-LessMSIRequirement > Test-LessmsiRequirement
• file_path > Get-AppFilePath

[r15ch13]

@Ash258 and @niheaven

se35710 (discord): i have 7zip installed via scoop globally, and now when i installed something via scoop, scoop installed it again "locally". should i report an issue?

@se35710 this should fix this issue

[niheaven]

Consider Test-CommandAvailable, and will we think about external installation of these tools? That is, test if they are installed (internal or external), call with file_path, if error fallback to cmdname (7z.exe, lessmsi.exe, innounp.exe, like 7zip_using_external do).

PS. I could test it tomorrow~

[r15ch13]

Since these are essential for Scoop to work, I would rather not use external versions because these can cause issues. Older 7zip versions have already caused some issues.

[niheaven]

Okay, got it.

Since Get-xxxPath return filepath string, it could substitute those string in Expand-xxx function, couldn't it? i.e. & Get-7zipPath x "$Path" -o"$DestinationPath", will it works?

[niheaven]

& (Get-7zipPath) x "$Path" -o"$DestinationPath" (-split $Switches) -y | Out-File $LogLocation

Above cmd works, and I suggest changing them so, for further scoop refactoring.

[niheaven]

Some minor fixes

[niheaven]

LGTM