Merge pull request #91 from rsteube/powershell

added powershell

README.md

@@ -12,6 +12,7 @@ Supported frameworks:
 - [cobra](https://github.com/spf13/cobra)
 - [complete](https://github.com/posener/complete)
 - [fish](https://fishshell.com/)
+- [powershell](https://microsoft.com/powershell)
 - [yargs](https://github.com/yargs/yargs)
 - [zsh](https://www.zsh.org/)
 

cmd/carapace-bridge/cmd/root.go

@@ -44,9 +44,10 @@ func init() {
 	addSubCommand("click", "bridges https://github.com/pallets/click", bridge.ActionClick)
 	addSubCommand("cobra", "bridges https://github.com/spf13/cobra", bridge.ActionCobra)
 	addSubCommand("complete", "bridges https://github.com/posener/complete", bridge.ActionComplete)
-	addSubCommand("fish", "bridges completions registered in fish shell", bridge.ActionFish)
+	addSubCommand("fish", "bridges completions registered in fish", bridge.ActionFish)
+	addSubCommand("powershell", "bridges completions registered in powershell", bridge.ActionPowershell)
 	addSubCommand("yargs", "bridges https://github.com/yargs/yargs", bridge.ActionYargs)
-	addSubCommand("zsh", "bridges completions registered in zsh shell", bridge.ActionZsh)
+	addSubCommand("zsh", "bridges completions registered in zsh", bridge.ActionZsh)
 }
 
 func addSubCommand(use, short string, f func(s ...string) carapace.Action) {

pkg/actions/bridge/fish.go

@@ -16,7 +16,7 @@ func compline(args ...string) string {
 	return fmt.Sprintf("%#v", strings.Join(args, " "))
 }
 
-// ActionFish bridges completions registered in fish shell
+// ActionFish bridges completions registered in fish
 // (uses custom `config.fish` in “~/.config/carapace/bridge/fish`)
 func ActionFish(command ...string) carapace.Action {
 	return carapace.ActionCallback(func(c carapace.Context) carapace.Action {

pkg/actions/bridge/powershell.go

@@ -0,0 +1,75 @@
+package bridge
+
+import (
+	"encoding/json"
+	"fmt"
+	"strings"
+
+	"github.com/rsteube/carapace"
+	"github.com/rsteube/carapace/pkg/style"
+	"github.com/rsteube/carapace/pkg/xdg"
+)
+
+// ActionPowershell bridges completions registered in powershell
+// TODO (uses custom `config.fish` in “~/.config/carapace/bridge/fish`)
+func ActionPowershell(command ...string) carapace.Action {
+	return carapace.ActionCallback(func(c carapace.Context) carapace.Action {
+		if len(command) == 0 {
+			return carapace.ActionMessage("missing argument [ActionPowershell]")
+		}
+
+		configDir, err := xdg.UserConfigDir()
+		if err != nil {
+			return carapace.ActionMessage(err.Error())
+		}
+
+		args := append(command, c.Args...)
+		args = append(args, c.CallbackValue)
+
+		// for index, arg := range args {
+		// TODO handle different escape character and escapcing in general
+		// args[index] = strings.Replace(arg, " ", "` ", -1)
+		// }
+
+		line := strings.Join(args, " ")
+		snippet := fmt.Sprintf(`[System.Management.Automation.CommandCompletion]::CompleteInput("%v", %v, $null).CompletionMatches | ConvertTo-Json `, line, len(line))
+
+		c.Setenv("XDG_CONFIG_HOME", fmt.Sprintf("%v/carapace/bridge", configDir))
+		return carapace.ActionExecCommand("pwsh", "-Command", snippet)(func(output []byte) carapace.Action {
+			if len(output) == 0 {
+				return carapace.ActionValues()
+			}
+
+			type singleResult struct {
+				CompletionText string `json:"CompletionText"`
+				ListItemText   string `json:"ListItemText"`
+				ResultType     int    `json:"ResultType"`
+				ToolTip        string `json:"ToolTip"`
+			}
+			var result []singleResult
+
+			if err := json.Unmarshal(output, &result); err != nil {
+				result = make([]singleResult, 1)
+				if err := json.Unmarshal(output, &result[0]); err != nil {
+					carapace.LOG.Println(string(output))
+					return carapace.ActionMessage(err.Error())
+				}
+			}
+
+			suffixes := make([]rune, 0)
+			vals := make([]string, 0)
+			for _, r := range result {
+				if _runes := []rune(r.CompletionText); len(_runes) > 2 && strings.HasSuffix(r.CompletionText, " ") {
+					suffixes = append(suffixes, _runes[len(_runes)-1])
+				}
+				r.CompletionText = strings.TrimSuffix(r.CompletionText, " ")
+
+				if r.CompletionText == r.ToolTip {
+					r.ToolTip = ""
+				}
+				vals = append(vals, r.CompletionText, r.ToolTip)
+			}
+			return carapace.ActionValuesDescribed(vals...).NoSpace(suffixes...).StyleF(style.ForPath)
+		}).Invoke(c).ToA()
+	})
+}

pkg/actions/bridge/zsh.go

@@ -11,7 +11,7 @@ import (
 	"github.com/rsteube/carapace/pkg/xdg"
 )
 
-// ActionZsh bridges completions registered in zsh shell
+// ActionZsh bridges completions registered in zsh
 // (uses custom `.zshrc` in “~/.config/carapace/bridge/zsh`)
 func ActionZsh(command ...string) carapace.Action {
 	return carapace.ActionCallback(func(c carapace.Context) carapace.Action {