functions/Find-DbaCommand.ps1
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#ValidationTags#Messaging,FlowControl,Pipeline,CodeStyle# function Find-DbaCommand { <# .SYNOPSIS Finds dbatools commands searching through the inline help text .DESCRIPTION Finds dbatools commands searching through the inline help text, building a consolidated json index and querying it because Get-Help is too slow .PARAMETER Tag Finds all commands tagged with this auto-populated tag .PARAMETER Author Finds all commands tagged with this author .PARAMETER MinimumVersion Finds all commands tagged with this auto-populated minimum version .PARAMETER MaximumVersion Finds all commands tagged with this auto-populated maximum version .PARAMETER Rebuild Rebuilds the index .PARAMETER Pattern Searches help for all commands in dbatools for the specified pattern and displays all results .PARAMETER Confirm Confirms overwrite of index .PARAMETER WhatIf Displays what would happen if the command is run .PARAMETER EnableException By default, when something goes wrong we try to catch it, interpret it and give you a friendly warning message. This avoids overwhelming you with "sea of red" exceptions, but is inconvenient because it basically disables advanced scripting. Using this switch turns this "nice by default" feature off and enables you to catch exceptions with your own try/catch. .NOTES Tags: Find, Help, Command Author: Simone Bizzotto (@niphold) Website: https://dbatools.io Copyright: (c) 2018 by dbatools, licensed under MIT License: MIT https://opensource.org/licenses/MIT .LINK https://dbatools.io/Find-DbaCommand .EXAMPLE PS C:\> Find-DbaCommand "snapshot" For lazy typers: finds all commands searching the entire help for "snapshot" .EXAMPLE PS C:\> Find-DbaCommand -Pattern "snapshot" For rigorous typers: finds all commands searching the entire help for "snapshot" .EXAMPLE PS C:\> Find-DbaCommand -Tag copy Finds all commands tagged with "copy" .EXAMPLE PS C:\> Find-DbaCommand -Tag copy,user Finds all commands tagged with BOTH "copy" and "user" .EXAMPLE PS C:\> Find-DbaCommand -Author chrissy Finds every command whose author contains our beloved "chrissy" .EXAMPLE PS C:\> Find-DbaCommand -Author chrissy -Tag copy Finds every command whose author contains our beloved "chrissy" and it tagged as "copy" .EXAMPLE PS C:\> Find-DbaCommand -Pattern snapshot -Rebuild Finds all commands searching the entire help for "snapshot", rebuilding the index (good for developers) #> [CmdletBinding(SupportsShouldProcess = $true)] param ( [String]$Pattern, [String[]]$Tag, [String]$Author, [String]$MinimumVersion, [String]$MaximumVersion, [switch]$Rebuild, [Alias('Silent')] [switch]$EnableException ) begin { function Get-DbaTrimmedString($Text) { return $Text.Trim() -replace '(\r\n){2,}', "`n" } $tagsRex = ([regex]'(?m)^[\s]{0,15}Tags:(.*)$') $authorRex = ([regex]'(?m)^[\s]{0,15}Author:(.*)$') $minverRex = ([regex]'(?m)^[\s]{0,15}MinimumVersion:(.*)$') $maxverRex = ([regex]'(?m)^[\s]{0,15}MaximumVersion:(.*)$') function Get-DbaHelp([String]$commandName) { $thishelp = Get-Help $commandName -Full $thebase = @{ } $thebase.CommandName = $commandName $thebase.Name = $thishelp.Name $alias = Get-Alias -Definition $commandName -ErrorAction SilentlyContinue $thebase.Alias = $alias.Name -Join ',' ## fetch the description $thebase.Description = $thishelp.Description.Text ## fetch examples $thebase.Examples = Get-DbaTrimmedString -Text ($thishelp.Examples | Out-String -Width 200) ## fetch help link $thebase.Links = ($thishelp.relatedLinks).NavigationLink.Uri ## fetch the synopsis $thebase.Synopsis = $thishelp.Synopsis ## fetch the syntax $thebase.Syntax = Get-DbaTrimmedString -Text ($thishelp.Syntax | Out-String -Width 600) ## store notes $as = $thishelp.AlertSet | Out-String -Width 600 ## fetch the tags $tags = $tagsrex.Match($as).Groups[1].Value if ($tags) { $thebase.Tags = $tags.Split(',').Trim() } ## fetch the author $author = $authorRex.Match($as).Groups[1].Value if ($author) { $thebase.Author = $author.Trim() } ## fetch MinimumVersion $MinimumVersion = $minverRex.Match($as).Groups[1].Value if ($MinimumVersion) { $thebase.MinimumVersion = $MinimumVersion.Trim() } ## fetch MaximumVersion $MaximumVersion = $maxverRex.Match($as).Groups[1].Value if ($MaximumVersion) { $thebase.MaximumVersion = $MaximumVersion.Trim() } ## fetch Parameters $parameters = $thishelp.parameters.parameter $command = Get-Command $commandName $params = @() foreach ($p in $parameters) { $paramAlias = $command.parameters[$p.Name].Aliases $paramDescr = Get-DbaTrimmedString -Text ($p.Description | Out-String -Width 200) $params += , @($p.Name, $paramDescr, ($paramAlias -Join ','), ($p.Required -eq $true), $p.PipelineInput, $p.DefaultValue) } $thebase.Params = $params [pscustomobject]$thebase } function Get-DbaIndex() { if ($Pscmdlet.ShouldProcess($dest, "Recreating index")) { $dbamodule = Get-Module -Name dbatools $allCommands = $dbamodule.ExportedCommands.Values | Where-Object CommandType -EQ 'Function' $helpcoll = New-Object System.Collections.Generic.List[System.Object] foreach ($command in $allCommands) { $x = Get-DbaHelp "$command" $helpcoll.Add($x) } # $dest = Get-DbatoolsConfigValue -Name 'Path.TagCache' -Fallback "$(Resolve-Path $PSScriptRoot\..)\dbatools-index.json" $dest = "$moduleDirectory\bin\dbatools-index.json" $helpcoll | ConvertTo-Json -Depth 4 | Out-File $dest -Encoding UTF8 } } $moduleDirectory = (Get-Module -Name dbatools).ModuleBase } process { $Pattern = $Pattern.TrimEnd("s") $idxFile = "$moduleDirectory\bin\dbatools-index.json" if (!(Test-Path $idxFile) -or $Rebuild) { Write-Message -Level Verbose -Message "Rebuilding index into $idxFile" $swRebuild = [system.diagnostics.stopwatch]::StartNew() Get-DbaIndex Write-Message -Level Verbose -Message "Rebuild done in $($swRebuild.ElapsedMilliseconds)ms" } $consolidated = Get-Content -Raw $idxFile | ConvertFrom-Json $result = $consolidated if ($Pattern.Length -gt 0) { $result = $result | Where-Object { $_.PsObject.Properties.Value -like "*$Pattern*" } } if ($Tag.Length -gt 0) { foreach ($t in $Tag) { $result = $result | Where-Object Tags -Contains $t } } if ($Author.Length -gt 0) { $result = $result | Where-Object Author -Like "*$Author*" } if ($MinimumVersion.Length -gt 0) { $result = $result | Where-Object MinimumVersion -GE $MinimumVersion } if ($MaximumVersion.Length -gt 0) { $result = $result | Where-Object MaximumVersion -LE $MaximumVersion } Select-DefaultView -InputObject $result -Property CommandName, Synopsis } } |