[Windows] Custom fabric function setup & Powershell Profile editing

[Gerkinfeltser]

Hey all, I've been learning alot about how Windows Powershell works as I use LLMs & thought this might be of use to others.
A couple of notes: I'm on Windows 10, though I assume it works the same on other versions of Windows Powershell (details on where & how to save the function are at the end of this post). Also, Windows Powershell is different than cmd.exe so this won't work if you're just using the default Windows command prompt! Also, It's definitely still a WIP as I'm learning as I'm going...

The fabric-yt function

I wanted to reduce the amount of typing to do basic fabric stuff so I setup a custom fabric calling function for my Powershell profile.
The function does a few things I find useful when dealing with YouTube videos, which is my most common usage of fabric at this time.
The function does the following:

• Prepends the following to the output of fabric:
  • The provided youtube url
  • The fabric pattern command used to generate the output. (It defaults to summarize if none is provided.)
  • The time the function was called & the duration of the combined yt & fabric response.
• Automatically uses fabric's -c (context) flag
• Allows for optionally choosing a pattern (and will default to summarize if not provided).
• Outputs the prepended information & fabric response to a markdown file in the user's temp directory. (NOTE: I'd rather this gets removed automatically but haven't devoted any time to doing that as I assume this will open another can of worms.)
• Opens the created markdown file in VS Code.

fabric-yt

function fabric-yt {
    param (
        [string]$url,
        [string]$param = 'summarize'
    )

    # Get the current timestamp
    $startTime = Get-Date

    # Get the transcript and metadata using yt
    $transcript = yt $url

    # Use fabric to generate the summary
    $summary = $transcript | fabric -p $param -c

    # Get the end timestamp and calculate the duration
    $endTime = Get-Date
    $duration = $endTime - $startTime

    # Format the duration as a readable string
    $durationString = "{0:D2}:{1:D2}:{2:D2}.{3:D3}" -f $duration.Hours, $duration.Minutes, $duration.Seconds, $duration.Milliseconds

    # Prepend the YouTube URL, parameter, timestamp, and generation time to the summary
    $output = @(
        "YouTube URL: $url"
        "Parameter: $param"
        "Timestamp: $startTime"
        "Generation Time: $durationString"
        ""
        $summary
    ) -join "`r`n"

    # Create a temporary file with .md extension
    $tempFile = [System.IO.Path]::GetTempFileName()
    $tempFile = [System.IO.Path]::ChangeExtension($tempFile, ".md")

    # Write the output to the temporary file with UTF-8 encoding
    $output | Out-File -FilePath $tempFile -Encoding utf8

    # Open the temporary file in VS Code
    code $tempFile
}

Example usage:

After editing your Powershell profile (as outlined below) you can run the function like this for a fabric summarize:

fabric-yt https://www.youtube.com/watch?v=4zRmGKsHYTQ

This will run fabric's extract_wisdom

fabric-yt https://www.youtube.com/watch?v=4zRmGKsHYTQ extract_wisdom

This is what the [heavily-abridged] response looks like:

YouTube URL: https://www.youtube.com/watch?v=4zRmGKsHYTQ
Parameter: extract_wisdom
Timestamp: 06/21/2024 09:54:39
Generation Time: 00:00:32.843

# SUMMARY: 
Daniel is discussing his upcoming augmented AI course, "Human 3.0," and shares his thoughts on AI, ratings, and the future of hiring.

# IDEAS:
...

Here is how to setup the alias on a Powershell profile

1. Open a Powershell instance via the normal methods.
   1a) (Optional) See the Powershell profile in use:

echo $PROFILE

2. Edit the profile in VS Code (the .ps1 file that opens is where you'd add the custom function from above)

code $PROFILE

3. After edited, source the newly edited profile

. $PROFILE

4. You should now be able to invoke the function like so:

fabric-yt https://www.youtube.com/watch?v=4zRmGKsHYTQ extract_wisdom

Hope this helps someone else out, or at least saves you a few keystrokes! :D