Merge pull request #100 from rsteube/bash

added bash

README.md

@@ -10,6 +10,7 @@ Invokes completion of various frameworks and provides bridge actions for [carapa
 
 Supported frameworks:
 - [argcomplete](https://github.com/kislyuk/argcomplete)
+- [bash](https://www.gnu.org/software/bash/)
 - [carapace](https://github.com/rsteube/carapace)
 - [carapace-bin](https://github.com/rsteube/carapace-bin/)
 - [click](https://github.com/pallets/click)

cmd/carapace-bridge/cmd/root.go

@@ -39,6 +39,7 @@ func init() {
 	carapace.Gen(rootCmd)
 	rootCmd.AddGroup(&cobra.Group{ID: "bridge", Title: "Bridge Commands"})
 	addSubCommand("argcomplete", "bridges https://github.com/kislyuk/argcomplete", bridge.ActionArgcomplete)
+	addSubCommand("bash", "bridges completions registered in bash", bridge.ActionBash)
 	addSubCommand("carapace-bin", "bridges completions registered in carapace-bin", bridge.ActionCarapaceBin)
 	addSubCommand("carapace", "bridges https://github.com/rsteube/carapace", bridge.ActionCarapace)
 	addSubCommand("click", "bridges https://github.com/pallets/click", bridge.ActionClick)

pkg/actions/bridge/bash.go

@@ -0,0 +1,49 @@
+package bridge
+
+import (
+	_ "embed"
+	"fmt"
+	"strings"
+
+	"github.com/rsteube/carapace"
+	"github.com/rsteube/carapace/pkg/style"
+	"github.com/rsteube/carapace/pkg/xdg"
+)
+
+//go:embed bash.sh
+var bashSnippet string
+
+// ActionBash bridges completions registered in bash
+// (uses custom `.bashrc` in “~/.config/carapace/bridge/bash`)
+func ActionBash(command ...string) carapace.Action {
+	return carapace.ActionCallback(func(c carapace.Context) carapace.Action {
+		if len(command) == 0 {
+			return carapace.ActionMessage("missing argument [ActionFish]")
+		}
+
+		configDir, err := xdg.UserConfigDir()
+		if err != nil {
+			return carapace.ActionMessage(err.Error())
+		}
+
+		// replacer := strings.NewReplacer(
+		// ` `, `\ `,
+		// `"`, `\""`,
+		// )
+
+		args := append(command, c.Args...)
+		args = append(args, c.CallbackValue)
+
+		// for index, arg := range args {
+		// args[index] = replacer.Replace(arg)
+		// }
+
+		rcfile := fmt.Sprintf("%v/carapace/bridge/bash/.bashrc", configDir)
+		c.Setenv("COMP_LINE", strings.Join(args, " "))
+		c.Setenv("XDG_CONFIG_HOME", fmt.Sprintf("%v/carapace/bridge", configDir))
+		return carapace.ActionExecCommand("bash", "--rcfile", rcfile, "-i", "-c", bashSnippet, strings.Join(args, " "))(func(output []byte) carapace.Action {
+			lines := strings.Split(string(output), "\n")
+			return carapace.ActionValues(lines[:len(lines)-1]...).StyleF(style.ForPath)
+		}).Invoke(c).ToA().NoSpace([]rune("/=@:.,")...) // TODO check compopt for nospace
+	})
+}

pkg/actions/bridge/bash.sh

@@ -0,0 +1,18 @@
+#!/bin/bash -i
+# COMP_LINE="$1"
+COMP_WORDS=($COMP_LINE)
+if [ "${COMP_LINE: -1}" = " " ]; then
+  COMP_WORDS+=("")
+fi
+COMP_CWORD=$((${#COMP_WORDS[@]} - 1))
+COMP_POINT=${#COMP_LINE}
+
+$"$(complete -p "${COMP_WORDS[0]}" | sed -r 's/.* -F ([^ ]+).*/\1/')"
+
+for i in "${COMPREPLY[@]}"; do
+  if [[ -d "${i}" && "${i}" != */ ]]; then
+    echo "${i}/"
+  else
+    echo "${i}"
+  fi
+done