lib/Initialize-JenkinsUpdateCache.ps1
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function Initialize-JenkinsUpdateCache { [CmdLetBinding(SupportsShouldProcess = $true)] [OutputType([System.IO.FileInfo])] param ( [parameter( Position = 1, Mandatory = $false)] [System.String] $Uri = 'http://updates.jenkins-ci.org/update-center.json', [parameter( Position = 2, Mandatory = $true)] [ValidateNotNullOrEmpty()] [ValidateScript( { Test-Path -Path $_ })] [System.String] $Path, [parameter( Position = 3, Mandatory = $true)] [ValidateNotNullOrEmpty()] [System.String] $CacheUri, [parameter( Position = 4, Mandatory = $false)] [ValidateNotNullOrEmpty()] [System.String[]] $Include, [parameter( Position = 5, Mandatory = $false)] [ValidateNotNullOrEmpty()] [System.String[]] $Exclude, [Switch] $UpdateCore, [Switch] $Force ) if ($CacheUri.EndsWith('/')) { $CacheUri = $CacheUri.Substring(0, $CacheUri.Length - 1) } # if # Download the Remote Update Center JSON Write-Verbose -Message $($LocalizedData.DownloadingRemoteUpdateListMessage -f $Uri) Set-JenkinsTLSSupport $remotePluginJSON = Invoke-WebRequest ` -Uri $Uri ` -UseBasicParsing $result = $remotePluginJSON.Content -match 'updateCenter.post\(\r?\n(.*)\r?\n\);' if (-not $result) { $ExceptionParameters = @{ errorId = 'UpdateListBadFormatError' errorCategory = 'InvalidArgument' errorMessage = $($LocalizedData.UpdateListBadFormatError -f ` 'remote', $Uri) } New-JenkinsException @ExceptionParameters } $remoteJSON = ConvertFrom-Json -InputObject $Matches[1] # Generate an array of the Remote plugins and versions Write-Verbose -Message $($LocalizedData.ProcessingRemoteUpdateListMessage -f $Uri) $remotePlugins = [System.Collections.ArrayList] @() $remotePluginList = ($remoteJSON.Plugins | Get-Member -MemberType NoteProperty).Name foreach ($plugin in $remotePluginList) { if ($Include) { $addIt = $false # Includes only the entries that match the $Include array foreach ($item in $Include) { if ($plugin -like $item) { $addIt = $true } } } elseif ($Exclude) { # Excludes the entries that match the $Exclude array $addIt = $true foreach ($item in $Exclude) { if ($plugin -notlike $item) { $addIt = $false } } } # if if ($addIt) { $null = $remotePlugins.Add( $remoteJSON.Plugins.$plugin ) } } # foreach $localUpdateListPath = Join-Path -Path $Path -ChildPath 'update-center.json' if (Test-Path -Path $localUpdateListPath) { $localPluginJSON = Get-Content -Path $localUpdateListPath -Raw $result = $localPluginJSON -match 'updateCenter.post\(\r?\n(.*)\r?\n\);' if (-not $result) { $exceptionParameters = @{ errorId = 'UpdateListBadFormatError' errorCategory = 'InvalidArgument' errorMessage = $($LocalizedData.UpdateListBadFormatError -f ` 'local', $localUpdateListPath) } New-JenkinsException @exceptionParameters } $localJSON = ConvertFrom-Json -InputObject $Matches[1] # Generate an array of the Remote plugins and versions Write-Verbose -Message $($LocalizedData.ProcessingLocalUpdateListMessage -f $localUpdateListPath) $localPlugins = [System.Collections.ArrayList] @() $localPluginList = ($LocalJSON.Plugins | Get-Member -MemberType NoteProperty).Name foreach ($plugin in $localPluginList) { if ($Include) { $addIt = $false # Includes only the entries that match the $Include array foreach ($item in $Include) { if ($plugin -like $item) { $addIt = $true } } } elseif ($Exclude) { # Excludes the entries that match the $Exclude array $addIt = $true foreach ($item in $Exclude) { if ($plugin -notlike $item) { $addIt = $false } } } # if if ($addIt) { $null = $localPlugins.Add( $localJSON.Plugins.$plugin ) } } # foreach } else { $localPlugins = [System.Collections.ArrayList] @() } # if <# Now perform the comparison between the plugins that exist and the ones that need to be downloaded and download any missing ones. Step down the list of remote plugins in reverse so that we can remove elements from the array. #> $cacheUpdated = $false for ($pluginNumber = $RemotePlugins.Count - 1; $pluginNumber -ge 0; $pluginNumber--) { $remotePlugin = $RemotePlugins[$pluginNumber] Write-Verbose -Message $($LocalizedData.ProcessingPluginMessage -f $remotePlugin.name, $remotePlugin.version ) $pluginFilename = Split-Path -Path $remotePlugin.url -Leaf # Find out if the plugin already exists. $needsUpdate = $true $foundPlugin = $null foreach ($localPlugin in $LocalPlugins) { if ($localPlugin.name -eq $remotePlugin.name) { $foundPlugin = $localPlugin if ($localPlugin.version -eq $remotePlugin.version) { # TODO: Add hash check to validate cached file $needsUpdate = $false break } # if } # if } # foreach if ($foundPlugin) { Write-Verbose -Message $($LocalizedData.ExistingPluginFoundMessage -f $foundPlugin.name, $foundPlugin.version) } if ($needsUpdate) { $downloadOK = $false if ($Force -or $PSCmdlet.ShouldProcess(` $remotePlugin.name, ` $($LocalizedData.UpdateJenkinsPluginMessage -f $remotePlugin.name, $remotePlugin.verion))) { # A new version of the plugin needs to be downloaded $PluginFilePath = Join-Path -Path $Path -ChildPath $pluginFilename if (Test-Path -Path $PluginFilePath) { # The plugin file already exists so remove it Write-Verbose -Message $($LocalizedData.RemovingPluginFileMessage -f $PluginFilePath) $null = Remove-Item -Path $PluginFilePath -Force } # if Write-Verbose -Message $($LocalizedData.DownloadingPluginMessage -f $remotePlugin.name, $remotePlugin.url, $PluginFilePath) # Download the plugin try { Invoke-WebRequest ` -Uri $remotePlugin.url ` -UseBasicParsing ` -OutFile $PluginFilePath ` -ErrorAction Stop $downloadOK = $true } catch { Write-Error -Exception $_ } # try if ($downloadOk) { $cacheUpdated = $true } # if } # if if ($downloadOk) { if ($foundPlugin) { # The plugin already exists so remove the entry before adding a new one $null = $localPlugins.Remove($foundPlugin) } # if # Add the plugin to the local plugins list $remotePlugin.url = "$CacheUri/$pluginFilename" $null = $localPlugins.Add( $remotePlugin ) # Report that the file was downloaded Get-ChildItem -Path $pluginFilePath } # if } # if } # foreach if ($cacheUpdated) { # Generate new Local Plugin JSON object $newPlugins = New-Object PSCustomObject foreach ($plugin in $localPlugins | Sort-Object -Property name) { $null = Add-Member ` -InputObject $newPlugins ` -Type NoteProperty ` -Name $plugin.name ` -Value $plugin } # foreach $remoteJSON.plugins = $newPlugins } # if if ($UpdateCore) { # Need to see if the Jenkins Core needs to be updated $coreFilename = Split-Path -Path $remoteJSON.Core.url -Leaf if (($localJSON.Core.version -ne $remoteJSON.Core.version) -or ` ($localJSON.Core.url -ne "$CacheUri/$coreFilename")) { $downloadOK = $false if ($Force -or $PSCmdlet.ShouldProcess(` $remoteJSON.Core.version, ` $($LocalizedData.UpdateJenkinsCoreMessage -f $remoteJSON.Core.version))) { # A new version of the plugin needs to be downloaded $coreFilePath = Join-Path -Path $Path -ChildPath $coreFilename if (Test-Path -Path $coreFilePath) { # The plugin file already exists so remove it Write-Verbose -Message $($LocalizedData.RemovingJenkinsCoreFileMessage -f $coreFilePath) $null = Remove-Item -Path $coreFilePath -Force } # if Write-Verbose -Message $($LocalizedData.DownloadingJenkinsCoreMessage -f $remoteJSON.Core.url, $coreFilePath) try { Invoke-WebRequest ` -Uri $remoteJSON.Core.url ` -UseBasicParsing ` -OutFile $coreFilePath ` -ErrorAction Stop $downloadOK = $true } catch { Write-Error -Exception $_ } # try if ($downloadOk) { # Update the Cache List file $remoteJSON.Core.Url = "$CacheUri/$coreFilename" $cacheUpdated = $true # Report that the file was downloaded Get-ChildItem -Path $coreFilePath } # if } # if } else { Write-Verbose -Message $($LocalizedData.ExistingJenkinsCoreFoundMessage -f $remoteJSON.Core.version) } # if } # if if ($cacheUpdated) { # Convert the JSON object into JSON $newJSON = ConvertTo-Json -InputObject $remoteJSON -Compress # Create the new Local Plugin JSON file content $localPluginJSON = "updateCenter.post(`n$newJSON`n);" if ($Force -or $PSCmdlet.ShouldProcess(` $localUpdateListPath, ` $($LocalizedData.CreateJenkinsUpdateListMessage -f $localUpdateListPath))) { # Write out the new Local Update List file if (Test-Path -Path $localUpdateListPath) { $null = Remove-Item -Path $localUpdateListPath -Force } # if $null = Set-Content -Path $localUpdateListPath -Value $localPluginJSON -NoNewline } # if } # if } # Initialize-JenkinsUpdateCache |