fix: relative path handling in Find-Item

[cdonnellytx]

By default if you pass a relative path to the .NET APIs, it will use [Environment]::CurrentDirectory as its base, not your actual PowerShell working directory.

The problem is that the two are almost never the same.

This changes it so that the entry path is resolved by PowerShell, not .NET.

Description

This resolves relative paths to absolute in PowerShell's working directory context instead of .NET's.

By default if you pass a relative path to the .NET APIs, it will use [Environment]::CurrentDirectory as its base, not your actual PowerShell working directory.

The problem is that the two are almost never the same.

This changes it so that the entry path is resolved by PowerShell, not .NET, by using PSCmdlet.GetResolvedProviderPathFromPSPath to resolve the path.

Related Issue

#19

Motivation and Context

It lets me specify relative paths to Find-Item.

How Has This Been Tested?

Ran Find-Item manually:

How	Example	Result
without a specified path	Find-Item	Works same as before
with a relative path	Find-Item foo	Searches $PWD\foo instead of $HOME\foo
with an absolute path	Find-Item D:\github\cdonnellytx\foo	Works same as before
with a PSPath	Find-Item 'Microsoft.PowerShell.Core\FileSystem::D:\github\cdonnellytx\foo'	Searches as if it was passed D:\github\cdonnellytx\foo

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[cdonnellytx]

Definitely not finished yet, found a fun bug wherein if the path doesn't resolve, the Path variable is never updated, and so a failed path ends up looking in $HOME anyway.

I'll fix it and will ensure there are tests before going live with this.