Add Get-GiteaChildItem, Config management, LFS detection. Increase usability with pipes.

PS-GiteaUtilities/PS-GiteaUtilities.psm1

@@ -1,3 +1,49 @@
+Function Set-GiteaConfiguration {
+    [CmdletBinding()]
+    param(
+        [Parameter(Mandatory)]
+        [string]$giteaURL,
+        [Parameter(Mandatory)]
+        [string]$token,
+        [string]$defaultOwner,
+        [string]$defaultRepo,
+        [string]$defaultBranch = "main"
+    )
+    
+    # Create configuration directory if it doesn't exist
+    $configDir = Join-Path -Path $env:USERPROFILE -ChildPath ".giteautils"
+    if (-not (Test-Path -Path $configDir)) {
+        New-Item -Path $configDir -ItemType Directory | Out-Null
+    }
+    
+    # Save configuration
+    $config = @{
+        giteaURL = $giteaURL
+        token = $token
+        defaultOwner = $defaultOwner
+        defaultRepo = $defaultRepo
+        defaultBranch = $defaultBranch
+    }
+    
+    $configPath = Join-Path -Path $configDir -ChildPath "config.xml"
+    $config | Export-Clixml -Path $configPath -Force
+}
+
+Function Get-GiteaConfiguration {
+    [CmdletBinding()]
+    param()
+    
+    $configPath = Join-Path -Path $env:USERPROFILE -ChildPath ".giteautils\config.xml"
+    
+    if (Test-Path -Path $configPath) {
+        return Import-Clixml -Path $configPath
+    }
+    else {
+        Write-Warning "Gitea configuration not found. Use Set-GiteaConfiguration to set up."
+        return $null
+    }
+}
+
 Function Get-GiteaFileContent {
 
     <#
@@ -42,21 +88,51 @@ Function Get-GiteaFileContent {
 
     [CmdletBinding()]
     param(
+        [Parameter(ValueFromPipelineByPropertyName)]
         [string]$giteaURL = "https://gitea.norwichct.tech",
-        [Parameter(Mandatory)]
+        [Parameter(ValueFromPipelineByPropertyName)]
         [string]$repoOwner,
-        [Parameter(Mandatory)]
+        [Parameter(ValueFromPipelineByPropertyName)]
         [string]$repoName,
+        [Parameter(ValueFromPipelineByPropertyName)]
         [string]$branch = "main",
-        [Parameter(Mandatory, ValueFromPipeline, ValueFromPipelineByPropertyName)]
+        [Parameter(ValueFromPipeline, ValueFromPipelineByPropertyName)]
         [Alias('FullName', 'Path')]
         [string[]]$filePath,
-        [Parameter(Mandatory)]
         [string]$token,
         [switch]$decode
     )
 
     begin {
+        # Use configuration if parameters aren't provided
+        if (-not $PSBoundParameters.ContainsKey('giteaURL') -or 
+            -not $PSBoundParameters.ContainsKey('repoOwner') -or 
+            -not $PSBoundParameters.ContainsKey('repoName') -or 
+            -not $PSBoundParameters.ContainsKey('branch') -or 
+            -not $PSBoundParameters.ContainsKey('token')) {
+            
+            $config = Get-GiteaConfiguration
+            if ($config) {
+                if (-not $PSBoundParameters.ContainsKey('giteaURL')) { $giteaURL = $config.giteaURL }
+                if (-not $PSBoundParameters.ContainsKey('repoOwner')) { $repoOwner = $config.defaultOwner }
+                if (-not $PSBoundParameters.ContainsKey('repoName')) { $repoName = $config.defaultRepo }
+                if (-not $PSBoundParameters.ContainsKey('branch')) { $branch = $config.defaultBranch }
+                if (-not $PSBoundParameters.ContainsKey('token')) { $token = $config.token }
+            }
+        }
+
+        # Validate that we have all required parameters
+        $missingParams = @()
+        if (-not $giteaURL) { $missingParams += "giteaURL" }
+        if (-not $repoOwner) { $missingParams += "repoOwner" }
+        if (-not $repoName) { $missingParams += "repoName" }
+        if (-not $token) { $missingParams += "token" }
+        
+        if ($missingParams.Count -gt 0) {
+            throw "Missing required parameters: $($missingParams -join ', '). Either provide them directly or set them with Set-GiteaConfiguration."
+        }
+    
+
         $results = @()
         Write-Verbose "Parameters:"
         Write-Verbose "giteaURL: $giteaURL"
@@ -123,6 +199,82 @@ Function Get-GiteaFileContent {
     }
 }
 
+Function Get-GiteaLFSConfiguration {
+    <#
+    .SYNOPSIS
+    Retrieves the LFS configuration for a Gitea repository.
+
+    .DESCRIPTION
+    This function retrieves the LFS configuration for a Gitea repository using the Gitea API. The function requires the URL of the Gitea server, the owner of the repository, the name of the repository, and a personal access token.
+    The function returns the LFS configuration details.
+    #>
+    [cmdletbinding()]
+    param(
+        [string]$giteaURL,
+        [string]$repoOwner,
+        [string]$repoName,
+        [string]$token
+    )
+
+    begin {
+        # Use configuration if parameters aren't provided
+        if (-not $PSBoundParameters.ContainsKey('giteaURL') -or 
+            -not $PSBoundParameters.ContainsKey('repoOwner') -or 
+            -not $PSBoundParameters.ContainsKey('repoName') -or 
+            -not $PSBoundParameters.ContainsKey('token')) {
+            
+            $config = Get-GiteaConfiguration
+            if ($config) {
+                if (-not $PSBoundParameters.ContainsKey('giteaURL')) { $giteaURL = $config.giteaURL }
+                if (-not $PSBoundParameters.ContainsKey('repoOwner')) { $repoOwner = $config.defaultOwner }
+                if (-not $PSBoundParameters.ContainsKey('repoName')) { $repoName = $config.defaultRepo }
+                if (-not $PSBoundParameters.ContainsKey('token')) { $token = $config.token }
+            }
+        }
+
+        # Validate that we have all required parameters
+        $missingParams = @()
+        if (-not $giteaURL) { $missingParams += "giteaURL" }
+        if (-not $repoOwner) { $missingParams += "repoOwner" }
+        if (-not $repoName) { $missingParams += "repoName" }
+        if (-not $token) { $missingParams += "token" }
+
+        if ($missingParams.Count -gt 0) {
+            throw "Missing required parameters: $($missingParams -join ', '). Either provide them directly or set them with Set-GiteaConfiguration."
+        }
+    }
+
+    process {
+        Write-Verbose "Parameters:"
+        Write-Verbose "giteaURL: $giteaURL"
+        Write-Verbose "repoOwner: $repoOwner"
+        Write-Verbose "repoName: $repoName"
+        Write-Verbose "token: $token"
+
+        $filePath = ".gitattributes"
+
+        try {
+            $LFSConfig = (Get-GiteaFileContent -filePath $filePath -giteaURL $giteaURL -repoOwner $repoOwner -repoName $repoName -branch "main" -token $token -decode -ErrorAction SilentlyContinue).content
+            $LFSConfig = $LFSConfig -replace "\r?\n", "`n" # Normalize line endings
+            # Get the extensions of files which are tracked by LFS
+            # Parse the LFS configuration file and extract extensions
+            $lfsExtensions = @()
+            foreach ($line in $LFSConfig.Split("`n")) {
+                if ($line -match '^\*\.([^\s]+)\s+filter=lfs') {
+                    $extension = "." + $matches[1]
+                    $lfsExtensions += $extension
+                }
+            }
+            $lfsExtensions = $lfsExtensions | Sort-Object -Unique
+            return $lfsExtensions
+        }
+        catch {
+            Write-Error "Failed to retrieve LFS configuration: $_"
+            return @()
+        }
+    }
+}
+
 Function Invoke-GiteaFileDownload {
     <#
     .SYNOPSIS
@@ -131,6 +283,9 @@ Function Invoke-GiteaFileDownload {
     .DESCRIPTION
     This function downloads a file from a Gitea repository using a direct download URL. The function requires the download URL and a personal access token. You can optionally specify an output path and use the force switch to overwrite existing files.
 
+    .PARAMETER giteaURL
+    The URL of the Gitea server.
+
     .PARAMETER downloadURL
     The direct download URL for the file from the Gitea server.
 
@@ -150,46 +305,279 @@ Function Invoke-GiteaFileDownload {
     .EXAMPLE
     # Example 2: Download a file to a specific location with force overwrite
     Invoke-GiteaFileDownload -downloadURL "https://gitea.example.com/api/v1/repos/owner/repo/raw/path/to/file.txt" -token "your_token" -outputPath "C:\Downloads\file.txt" -force
+    
+    .EXAMPLE
+    # Example 3: Download files in pipeline from Get-GiteaChildItem 
+    Get-GiteaChildItem -path "docs" | Where-Object { $_.type -eq 'file' } | Invoke-GiteaFileDownload
     #>
 
     [cmdletbinding()]
     param(
-        [Parameter(Mandatory)]
+        [Parameter(Mandatory, ValueFromPipelineByPropertyName)]
         [string]$downloadURL,
-        [Parameter(Mandatory)]
         [string]$token,
+        [Parameter(ValueFromPipelineByPropertyName)]
         [string]$outputPath,
         [switch]$force
     )
 
-    # If the output path is not specified, use the current directory and the file name from the download URL (everything after the last '/' and before the last character after the last '.', inclusive of the extension)
+    begin {
-    if (-not $outputPath) {
+        # Use configuration if parameters aren't provided
-        # Get the file name from the download URL
+        if (-not $PSBoundParameters.ContainsKey('token')) {
-        $outputFileName = $downloadURL.Substring($downloadURL.LastIndexOf("/") + 1)
-        # Clean the file name by removing any query string parameters and HTML encoded characters
-        $outputFileName = [System.Uri]::UnescapeDataString($outputFileName.Split("?")[0])
             
-        # Append the outputFileName to the current location
+            $config = Get-GiteaConfiguration
-        $outputPath = Join-Path -Path (Get-Location) -ChildPath $outputFileName
+            if ($config) {
+                if (-not $PSBoundParameters.ContainsKey('token')) { $token = $config.token }
+            }
+        }
+
+        # Validate that we have the required token
+        if (-not $token) {
+            throw "Missing token parameter. Either provide it directly or set it with Set-GiteaConfiguration."
+        }
+
+        Write-Verbose "Parameters:"
+        Write-Verbose "token: $token (length: $(if($token){$token.Length}else{0}))"
+        
+        # Create a WebClient to be reused
+        $webClient = New-Object System.Net.WebClient
+        $webClient.Headers.Add("Authorization", "token $token")
     }
 
-    if((Test-Path -Path $outputPath -PathType Leaf) -and (-not $force)) {
+    process {
-        Write-Error "The file '$outputPath' already exists. Use the -Force switch to overwrite the file."
+        Write-Verbose "Processing download URL: $downloadURL"
-        return $false | Out-Null
+
+        # If the output path is not specified, use the current directory and the file name from the download URL
+        $currentOutputPath = $outputPath
+        if (-not $currentOutputPath) {
+            # Get the file name from the download URL
+            $outputFileName = $downloadURL.Substring($downloadURL.LastIndexOf("/") + 1)
+            # Clean the file name by removing any query string parameters and HTML encoded characters
+            $outputFileName = [System.Uri]::UnescapeDataString($outputFileName.Split("?")[0])
+            
+            # Append the outputFileName to the current location
+            $currentOutputPath = Join-Path -Path (Get-Location) -ChildPath $outputFileName
+        }
+
+        Write-Verbose "Output path: $currentOutputPath"
+
+        if((Test-Path -Path $currentOutputPath -PathType Leaf) -and (-not $force)) {
+            Write-Error "The file '$currentOutputPath' already exists. Use the -Force switch to overwrite the file."
+            return $false
+        }
+
+        try {
+            # Create the directory structure if it doesn't exist
+            $directory = Split-Path -Path $currentOutputPath -Parent
+            if (-not (Test-Path -Path $directory -PathType Container) -and $directory) {
+                New-Item -Path $directory -ItemType Directory -Force | Out-Null
+            }
+
+            # Download the file
+            Write-Verbose "Downloading from $downloadURL to $currentOutputPath"
+            
+            # Use synchronous download
+            $webClient.DownloadFile($downloadURL, $currentOutputPath)
+            
+            Write-Verbose "File downloaded successfully to $currentOutputPath"
+            return $true
+        }
+        catch {
+            Write-Error "Failed to download file from Gitea: $_"
+            return $false
+        }
     }
 
-    $headers = @{
+    end {
-        "Authorization" = "token $token"
+        # Clean up resources
-    }
+        if ($webClient) {
-
+            $webClient.Dispose()
-    try {
+        }
-        Invoke-RestMethod -Uri $downloadURL -Method Get -Headers $headers -OutFile $outputPath
-        return $true | Out-Null
-    }
-    catch {
-        Write-Error "Failed to download file from Gitea: $_"
-        return $false | Out-Null
     }
 }
 
-Export-ModuleMember -Function Get-GiteaFileContent, Invoke-GiteaFileDownload
+Function Get-GiteaChildItem {
+    <#
+    .SYNOPSIS
+    Lists files and directories in a Gitea repository path.
+
+    .DESCRIPTION
+    This function retrieves a list of files and directories from a specified path in a Gitea repository.
+    The results can be directly piped to Get-GiteaFileContent to retrieve file contents.
+
+    .PARAMETER giteaURL
+    The URL of the Gitea server.
+
+    .PARAMETER repoOwner
+    The owner of the repository.
+
+    .PARAMETER repoName
+    The name of the repository.
+
+    .PARAMETER Path
+    The path to list items from. This parameter accepts pipeline input.
+
+    .PARAMETER branch
+    The branch to retrieve the items from. The default value is 'main'.
+
+    .PARAMETER token
+    A personal access token for the Gitea server.
+
+    .EXAMPLE
+    # List items in the root directory of a repository
+    Get-GiteaChildItem -repoOwner "owner" -repoName "repo" -Path "" -token "your_token"
+
+    .EXAMPLE
+    # List items and pipe files to Get-GiteaFileContent to get their content
+    Get-GiteaChildItem -repoOwner "owner" -repoName "repo" -Path "docs" -token "your_token" | 
+        Where-Object { $_.type -eq "file" } | 
+        Get-GiteaFileContent -token "your_token" -decode
+    #>
+
+    [CmdletBinding()]
+    param(
+        [string]$giteaURL,
+        [Parameter(ValueFromPipelineByPropertyName)]
+        [string]$repoOwner,
+        [Parameter(ValueFromPipelineByPropertyName)]
+        [string]$repoName,
+        [Parameter(ValueFromPipeline, ValueFromPipelineByPropertyName)]
+        [Alias('FullName')]
+        [string[]]$Path,
+        [Parameter(ValueFromPipelineByPropertyName)]
+        [string]$branch = "main",
+        [string]$token
+    )
+
+    begin {
+        # Initialize results array
+        # This is used to store the results of the API calls later
+        # It is initialized here to avoid re-initializing it in the process block
+        $results = @()
+
+        # Use configuration if parameters aren't provided
+        if (-not $PSBoundParameters.ContainsKey('giteaURL') -or 
+            -not $PSBoundParameters.ContainsKey('repoOwner') -or 
+            -not $PSBoundParameters.ContainsKey('repoName') -or 
+            -not $PSBoundParameters.ContainsKey('branch') -or 
+            -not $PSBoundParameters.ContainsKey('token')) {
+            
+            $config = Get-GiteaConfiguration
+            if ($config) {
+                if (-not $PSBoundParameters.ContainsKey('giteaURL')) { $giteaURL = $config.giteaURL }
+                if (-not $PSBoundParameters.ContainsKey('repoOwner')) { $repoOwner = $config.defaultOwner }
+                if (-not $PSBoundParameters.ContainsKey('repoName')) { $repoName = $config.defaultRepo }
+                if (-not $PSBoundParameters.ContainsKey('branch')) { $branch = $config.defaultBranch }
+                if (-not $PSBoundParameters.ContainsKey('token')) { $token = $config.token }
+            }
+        }
+
+        # Validate that we have all required parameters
+        $missingParams = @()
+        if (-not $giteaURL) { $missingParams += "giteaURL" }
+        if (-not $repoOwner) { $missingParams += "repoOwner" }
+        if (-not $repoName) { $missingParams += "repoName" }
+        if (-not $token) { $missingParams += "token" }
+        
+        if ($missingParams.Count -gt 0) {
+            throw "Missing required parameters: $($missingParams -join ', '). Either provide them directly or set them with Set-GiteaConfiguration."
+        }
+
+        Write-Verbose "Parameters:"
+        Write-Verbose "giteaURL: $giteaURL"
+        Write-Verbose "repoOwner: $repoOwner"
+        Write-Verbose "repoName: $repoName"
+        Write-Verbose "Path: $Path"
+        Write-Verbose "token: $token"
+        
+        $headers = @{
+            "Authorization" = "token $token"
+            "Accept" = "application/json"
+        }
+
+        # Load the GIT LFS configuration if needed
+        $lfsExtensions = Get-GiteaLFSConfiguration -giteaURL $giteaURL -repoOwner $repoOwner -repoName $repoName -token $token
+    }
+
+    process {
+        $paths = $path
+        foreach ($path in $paths) {
+            Write-Verbose "Processing path: $path"
+            $encodedPath = [System.Uri]::EscapeDataString($path)
+            Write-Verbose "Encoded path: $encodedPath"
+            $url = "$giteaURL"
+            $url += "/api/v1/repos"
+            $url += "/$repoOwner"
+            $url += "/$repoName"
+            $url += "/contents"
+            $url += "/$encodedPath"
+            $url += "?ref=$branch"
+            Write-Verbose "URL: $url"
+
+            try {
+                $response = Invoke-RestMethod -Uri $url -Method Get -Headers $headers
+                
+                # Handle both single items and arrays
+                $items = if ($response -is [array]) { $response } else { @($response) }
+                
+                foreach ($item in $items) {
+                    # Check if the name ends with any of the LFS extensions
+                    $isLFS = $false
+                    foreach ($ext in $lfsExtensions) {
+                        if ($item.name.EndsWith($ext, [System.StringComparison]::InvariantCultureIgnoreCase)) {
+                            $isLFS = $true
+                            break
+                        }
+                    }
+                    if ($isLFS) {
+                        $item.type = "lfs"
+                        $item.download_url = "$giteaURL/api/v1/repos/$repoOwner/$repoName/media/$($item.path)"
+                    }
+
+                    $results += [PSCustomObject]@{
+                        # Properties for direct pipeline binding with other functions in this module
+                        filePath = $item.path            # Maps to -filePath parameter
+                        Path = $item.path                # Also include original name (alias)
+                        repoOwner = $repoOwner           # Maps to -repoOwner parameter
+                        repoName = $repoName             # Maps to -repoName parameter
+                        giteaURL = $giteaURL             # Maps to -giteaURL parameter
+                        downloadURL = $item.download_url # Maps to -downloadURL parameter
+                        branch = $branch                 # Maps to -branch parameter
+                        
+                        # Additional useful properties
+                        type = $item.type                # 'file' or 'dir'
+                        name = $item.name
+                        size = $item.size
+                        sha = $item.sha
+                        Success = $true
+                        Error = $null
+                    }
+                }
+            }
+            catch {
+                Write-Error "Failed to retrieve '$path' from Gitea: $_"
+                $results += [PSCustomObject]@{
+                    filePath = $path
+                    Path = $path
+                    repoOwner = $repoOwner
+                    repoName = $repoName
+                    giteaURL = $giteaURL
+                    branch = $branch
+                    type = $null
+                    name = $null
+                    size = $null
+                    sha = $null
+                    downloadURL = $null
+                    Success = $false
+                    Error = $_.Exception.Message
+                }
+            }
+        }
+    }
+
+    end {
+        return $results
+    }
+}
+
+Export-ModuleMember -Function Set-GiteaConfiguration, Get-GiteaConfiguration, Get-GiteaFileContent, Invoke-GiteaFileDownload, Get-GiteaChildItem