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e32b649648
Adding extenal-provisoner will help us to test snapshot functionality Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
101 lines
3.2 KiB
Go
101 lines
3.2 KiB
Go
// PowerShell completions are based on the amazing work from clap:
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// https://github.com/clap-rs/clap/blob/3294d18efe5f264d12c9035f404c7d189d4824e1/src/completions/powershell.rs
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//
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// The generated scripts require PowerShell v5.0+ (which comes Windows 10, but
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// can be downloaded separately for windows 7 or 8.1).
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package cobra
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import (
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"bytes"
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"fmt"
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"io"
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"os"
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"strings"
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"github.com/spf13/pflag"
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)
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var powerShellCompletionTemplate = `using namespace System.Management.Automation
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using namespace System.Management.Automation.Language
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Register-ArgumentCompleter -Native -CommandName '%s' -ScriptBlock {
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param($wordToComplete, $commandAst, $cursorPosition)
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$commandElements = $commandAst.CommandElements
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$command = @(
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'%s'
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for ($i = 1; $i -lt $commandElements.Count; $i++) {
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$element = $commandElements[$i]
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if ($element -isnot [StringConstantExpressionAst] -or
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$element.StringConstantType -ne [StringConstantType]::BareWord -or
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$element.Value.StartsWith('-')) {
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break
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}
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$element.Value
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}
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) -join ';'
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$completions = @(switch ($command) {%s
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})
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$completions.Where{ $_.CompletionText -like "$wordToComplete*" } |
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Sort-Object -Property ListItemText
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}`
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func generatePowerShellSubcommandCases(out io.Writer, cmd *Command, previousCommandName string) {
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var cmdName string
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if previousCommandName == "" {
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cmdName = cmd.Name()
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} else {
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cmdName = fmt.Sprintf("%s;%s", previousCommandName, cmd.Name())
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}
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fmt.Fprintf(out, "\n '%s' {", cmdName)
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cmd.Flags().VisitAll(func(flag *pflag.Flag) {
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if nonCompletableFlag(flag) {
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return
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}
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usage := escapeStringForPowerShell(flag.Usage)
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if len(flag.Shorthand) > 0 {
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fmt.Fprintf(out, "\n [CompletionResult]::new('-%s', '%s', [CompletionResultType]::ParameterName, '%s')", flag.Shorthand, flag.Shorthand, usage)
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}
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fmt.Fprintf(out, "\n [CompletionResult]::new('--%s', '%s', [CompletionResultType]::ParameterName, '%s')", flag.Name, flag.Name, usage)
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})
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for _, subCmd := range cmd.Commands() {
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usage := escapeStringForPowerShell(subCmd.Short)
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fmt.Fprintf(out, "\n [CompletionResult]::new('%s', '%s', [CompletionResultType]::ParameterValue, '%s')", subCmd.Name(), subCmd.Name(), usage)
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}
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fmt.Fprint(out, "\n break\n }")
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for _, subCmd := range cmd.Commands() {
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generatePowerShellSubcommandCases(out, subCmd, cmdName)
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}
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}
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func escapeStringForPowerShell(s string) string {
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return strings.Replace(s, "'", "''", -1)
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}
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// GenPowerShellCompletion generates PowerShell completion file and writes to the passed writer.
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func (c *Command) GenPowerShellCompletion(w io.Writer) error {
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buf := new(bytes.Buffer)
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var subCommandCases bytes.Buffer
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generatePowerShellSubcommandCases(&subCommandCases, c, "")
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fmt.Fprintf(buf, powerShellCompletionTemplate, c.Name(), c.Name(), subCommandCases.String())
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_, err := buf.WriteTo(w)
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return err
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}
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// GenPowerShellCompletionFile generates PowerShell completion file.
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func (c *Command) GenPowerShellCompletionFile(filename string) error {
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outFile, err := os.Create(filename)
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if err != nil {
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return err
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}
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defer outFile.Close()
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return c.GenPowerShellCompletion(outFile)
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}
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