Updated on 26-May-16 11:23:09

update-githubgist.ps1

Function Update-GithubGist
{    
Param(
        [Parameter(Mandatory=$true)] [String] $Path,
        [Parameter(Mandatory=$true)] [String] $GistName,
        [Switch] $SecretGist = $False
)
    
    if (Test-Path -Path $Path)
    {
        $fileName = Split-Path -Path $Path -Leaf
        $contents = Get-Content -Path $Path -Raw
    }

    $Description = "Updated on $((Get-Date).tostring("dd\-MMM\-yy hh\:mm\:ss"))"
    
    $Gist = @{
                'description' = $Description
                'public' = !$SecretGist
                'files' = @{
                            "$($fileName)" = @{
                                                'content' = "$($contents)"
                                              }
                           }
    }

    if(!$Global:GitHubCred){$Global:GitHubCred = Get-Credential ''}
        
    $AuthString = "{0}:{1}" -f $Global:GitHubCred.UserName, $Global:GitHubCred.GetNetworkCredential().Password
    $AuthString = [Convert]::ToBase64String([Text.Encoding]::UTF8.GetBytes($AuthString))
    
    $Header = @{
                    'Authorization' = 'Basic ' + $AuthString
                    'Content-Type' = 'application/json'
    }


 
    $URL = $APIURL = "https://api.github.com/gists"
    $Method  = 'POST'
 
    $TargetGithubGist = Get-GithubGist -GithubUser $Global:GitHubCred.UserName -FileName $GistName
    
    if($TargetGithubGist) {

        $URL = $APIURL + "/$($TargetGithubGist.GistID)" 
        $Method = 'Patch'
    }
        Invoke-RestMethod -Uri $URL -Method $Method -Headers $Header -Body ($gist | ConvertTo-Json)
}

Update-GithubGist -Path "D:\Powershell\Scripts\update-githubgist.ps1" -GistName "Update-GithubGist" -SecretGist