mirror of https://github.com/docker/cli.git
Redirect powershell completion
Signed-off-by: John Howard <jhoward@microsoft.com>
This commit is contained in:
John Howard
Tibor Vass
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# Powershell completion for docker
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### Prerequisite
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# Docker.exe needs to be in your PATH.
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# If the command is not found, you will need to add a docker alias or add the docker installation folder (e.g. `%ProgramFiles%\Docker Toolbox`) to your PATH environment variable.
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### Installation (Latest stable)
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# Windows 10 / Windows Server 2016:
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# 1. Open a powershell prompt
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# 2. Run `Install-Module -Scope CurrentUser posh-docker`
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#
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# Earlier Windows versions:
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# 1. Install [PackageManagement PowerShell Modules Preview](https://www.microsoft.com/en-us/download/details.aspx?id=49186)
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# 2. Open a powershell prompt
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# 3. Run `Install-Module -Scope CurrentUser posh-docker`
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### Installation (From source)
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# Copy this file to the %userprofile%\Documents\WindowsPowerShell\Modules\posh-docker directory (create directories as needed)
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### Usage
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# After installation, execute the following line to enable autocompletion for the current powershell session:
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#
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# Import-Module posh-docker
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#
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# To make it persistent, add the above line to your profile. For example, run `notepad $PROFILE` and insert the line above.
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$global:DockerCompletion = @{}
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$script:flagRegex = "^ (-[^, =]+),? ?(--[^= ]+)?"
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function script:Get-Containers($filter)
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{
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if ($filter -eq $null)
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{
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docker ps -a --no-trunc --format "{{.Names}}"
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} else {
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docker ps -a --no-trunc --format "{{.Names}}" --filter $filter
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}
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}
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function script:Get-AutoCompleteResult
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{
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param([Parameter(ValueFromPipeline=$true)] $value)
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Process
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{
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New-Object System.Management.Automation.CompletionResult $value
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}
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}
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filter script:MatchingCommand($commandName)
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{
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if ($_.StartsWith($commandName))
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{
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$_
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}
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}
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$completion_Docker = {
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param($commandName, $commandAst, $cursorPosition)
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$command = $null
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$commandParameters = @{}
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$state = "Unknown"
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$wordToComplete = $commandAst.CommandElements | Where-Object { $_.ToString() -eq $commandName } | Foreach-Object { $commandAst.CommandElements.IndexOf($_) }
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for ($i=1; $i -lt $commandAst.CommandElements.Count; $i++)
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{
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$p = $commandAst.CommandElements[$i].ToString()
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if ($p.StartsWith("-"))
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{
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if ($state -eq "Unknown" -or $state -eq "Options")
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{
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$commandParameters[$i] = "Option"
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$state = "Options"
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}
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else
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{
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$commandParameters[$i] = "CommandOption"
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$state = "CommandOptions"
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}
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}
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else
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{
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if ($state -ne "CommandOptions")
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{
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$commandParameters[$i] = "Command"
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$command = $p
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$state = "CommandOptions"
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}
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else
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{
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$commandParameters[$i] = "CommandOther"
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}
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}
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}
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if ($global:DockerCompletion.Count -eq 0)
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{
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$global:DockerCompletion["commands"] = @{}
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$global:DockerCompletion["options"] = @()
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docker --help | ForEach-Object {
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Write-Output $_
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if ($_ -match "^ (\w+)\s+(.+)")
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{
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$global:DockerCompletion["commands"][$Matches[1]] = @{}
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$currentCommand = $global:DockerCompletion["commands"][$Matches[1]]
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$currentCommand["options"] = @()
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}
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elseif ($_ -match $flagRegex)
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{
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$global:DockerCompletion["options"] += $Matches[1]
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if ($Matches[2] -ne $null)
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{
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$global:DockerCompletion["options"] += $Matches[2]
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}
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}
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}
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}
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if ($wordToComplete -eq $null)
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{
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$commandToComplete = "Command"
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if ($commandParameters.Count -gt 0)
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{
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if ($commandParameters[$commandParameters.Count] -eq "Command")
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{
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$commandToComplete = "CommandOther"
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}
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}
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} else {
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$commandToComplete = $commandParameters[$wordToComplete]
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}
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switch ($commandToComplete)
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{
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"Command" { $global:DockerCompletion["commands"].Keys | MatchingCommand -Command $commandName | Sort-Object | Get-AutoCompleteResult }
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"Option" { $global:DockerCompletion["options"] | MatchingCommand -Command $commandName | Sort-Object | Get-AutoCompleteResult }
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"CommandOption" {
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$options = $global:DockerCompletion["commands"][$command]["options"]
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if ($options.Count -eq 0)
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{
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docker $command --help | % {
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if ($_ -match $flagRegex)
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{
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$options += $Matches[1]
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if ($Matches[2] -ne $null)
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{
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$options += $Matches[2]
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}
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}
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}
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}
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$global:DockerCompletion["commands"][$command]["options"] = $options
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$options | MatchingCommand -Command $commandName | Sort-Object | Get-AutoCompleteResult
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}
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"CommandOther" {
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$filter = $null
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switch ($command)
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{
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"start" { $filter = "status=exited" }
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"stop" { $filter = "status=running" }
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}
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Get-Containers $filter | MatchingCommand -Command $commandName | Sort-Object | Get-AutoCompleteResult
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}
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default { $global:DockerCompletion["commands"].Keys | MatchingCommand -Command $commandName }
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}
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}
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# Register the TabExpension2 function
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if (-not $global:options) { $global:options = @{CustomArgumentCompleters = @{};NativeArgumentCompleters = @{}}}
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$global:options['NativeArgumentCompleters']['docker'] = $Completion_Docker
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$function:tabexpansion2 = $function:tabexpansion2 -replace 'End\r\n{','End { if ($null -ne $options) { $options += $global:options} else {$options = $global:options}'
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@ -0,0 +1 @@
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See https://github.com/samneirinck/posh-docker
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