export macros

cmd/carapace/cmd/action/completer.go

@@ -0,0 +1,38 @@
+package action
+
+import (
+	"encoding/json"
+
+	"github.com/rsteube/carapace"
+	"github.com/rsteube/carapace/pkg/style"
+)
+
+func ActionCompleters() carapace.Action {
+	return carapace.ActionCallback(func(c carapace.Context) carapace.Action {
+		return carapace.ActionExecCommand("carapace", "--list", "--format", "json")(func(output []byte) carapace.Action {
+			var completers []struct {
+				Name        string
+				Description string
+				Spec        string
+				Overlay     string
+			}
+			if err := json.Unmarshal(output, &completers); err != nil {
+				return carapace.ActionMessage(err.Error())
+			}
+
+			vals := make([]string, 0, len(completers))
+			for _, completer := range completers {
+				s := style.Default
+				if completer.Spec != "" {
+					s = style.Blue
+				}
+				if completer.Overlay != "" {
+					s = style.Of(s, style.Underlined)
+				}
+
+				vals = append(vals, completer.Name, completer.Description, s)
+			}
+			return carapace.ActionStyledValuesDescribed(vals...)
+		})
+	})
+}

cmd/carapace/cmd/codegen.go

@@ -0,0 +1,23 @@
+package cmd
+
+import (
+	"github.com/rsteube/carapace"
+	"github.com/spf13/cobra"
+)
+
+var codegenCmd = &cobra.Command{
+	Use:   "--scrape [spec]",
+	Short: "",
+	Args:  cobra.MinimumNArgs(1),
+	Run: func(cmd *cobra.Command, args []string) {
+		scrape(args[0])
+	},
+}
+
+func init() {
+	carapace.Gen(codegenCmd).Standalone()
+
+	carapace.Gen(codegenCmd).PositionalCompletion(
+		carapace.ActionFiles(".yaml"),
+	)
+}

cmd/carapace/cmd/completers/completers.go

@@ -18,6 +18,8 @@ var (
 )
 
 func Names() []string {
+	names = append(names, "carapace") // TODO add here or in generate?
+
 	unique := make(map[string]string)
 	for _, name := range names {
 		unique[name] = name

cmd/carapace/cmd/invoke.go

@@ -0,0 +1,163 @@
+package cmd
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"github.com/rsteube/carapace"
+	"github.com/rsteube/carapace-bin/cmd/carapace/cmd/action"
+	"github.com/rsteube/carapace-bin/cmd/carapace/cmd/completers"
+	"github.com/rsteube/carapace-bridge/pkg/actions/bridge"
+	"github.com/spf13/cobra"
+)
+
+var invokeCmd = &cobra.Command{
+	Use:   "invoke",
+	Short: "",
+	Args:  cobra.MinimumNArgs(1),
+	Run: func(cmd *cobra.Command, args []string) {
+		if overlayPath, err := overlayPath(args[0]); err == nil && len(args) > 2 { // and arg[1] is a known shell
+			cmd := &cobra.Command{
+				DisableFlagParsing: true,
+				CompletionOptions: cobra.CompletionOptions{
+					DisableDefaultCmd: true,
+				},
+			}
+
+			// TODO yuck
+			command := args[0]
+			shell := args[1]
+			args[0] = "_carapace"
+			args[1] = "export"
+			os.Args[1] = "_carapace"
+			os.Args[2] = "export"
+			os.Setenv("CARAPACE_LENIENT", "1")
+
+			carapace.Gen(cmd).PositionalAnyCompletion(
+				carapace.ActionCallback(func(c carapace.Context) carapace.Action {
+					batch := carapace.Batch()
+					specPath, err := completers.SpecPath(command)
+					if err != nil {
+						batch = append(batch, carapace.ActionImport([]byte(invokeCompleter(command))))
+					} else {
+						out, err := specCompletion(specPath, args[1:]...)
+						if err != nil {
+							return carapace.ActionMessage(err.Error())
+						}
+
+						batch = append(batch, carapace.ActionImport([]byte(out)))
+					}
+
+					batch = append(batch, overlayCompletion(overlayPath, args[1:]...))
+					return batch.ToA()
+				}),
+			)
+
+			cmd.SetArgs(append([]string{"_carapace", shell}, args[2:]...))
+			cmd.Execute()
+		} else {
+			if specPath, err := completers.SpecPath(args[0]); err == nil {
+				out, err := specCompletion(specPath, args[1:]...)
+				if err != nil {
+					fmt.Fprintln(cmd.ErrOrStderr(), err.Error())
+					return
+				}
+
+				// TODO revert the patching from specCompletion to use the integrated version for overlay to work (should move this somewhere else - best in specCompletion)
+				// TODO only patch completion script
+				out = strings.Replace(out, fmt.Sprintf("--spec '%v'", specPath), args[0], -1)
+				out = strings.Replace(out, fmt.Sprintf("'--spec', '%v'", specPath), fmt.Sprintf("'%v'", args[0]), -1) // xonsh callback
+				fmt.Fprint(cmd.OutOrStdout(), out)
+			} else {
+				fmt.Print(invokeCompleter(args[0]))
+			}
+		}
+	},
+}
+
+func init() {
+	carapace.Gen(invokeCmd).Standalone()
+	invokeCmd.Flags().SetInterspersed(false)
+
+	carapace.Gen(invokeCmd).PositionalCompletion(
+		action.ActionCompleters(),
+		bridge.ActionCarapaceBin("_carapace", "export", "", "_carapace").Shift(1).
+			Filter("macro", "style"),
+		carapace.ActionCallback(func(c carapace.Context) carapace.Action {
+			switch c.Args[1] {
+			case "bash",
+				"bash-ble",
+				"elvish",
+				"export",
+				"fish",
+				"ion",
+				"nushell",
+				"oil",
+				"powershell",
+				"tcsh",
+				"xonsh",
+				"zsh":
+				return carapace.ActionValues(c.Args[0])
+			default:
+				return carapace.ActionValues()
+			}
+		}),
+	)
+
+	carapace.Gen(invokeCmd).PositionalAnyCompletion(
+		carapace.ActionCallback(func(c carapace.Context) carapace.Action {
+			switch c.Args[1] {
+			case "bash",
+				"bash-ble",
+				"elvish",
+				"export",
+				"fish",
+				"ion",
+				"nushell",
+				"oil",
+				"powershell",
+				"tcsh",
+				"xonsh",
+				"zsh":
+				return bridge.ActionCarapaceBin(c.Args[0]).Shift(3)
+			default:
+				return carapace.ActionValues()
+			}
+		}),
+	)
+}
+
+func invokeCompleter(completer string) string {
+	old := os.Stdout
+	r, w, _ := os.Pipe()
+	os.Stdout = w
+
+	outC := make(chan string)
+	// copy the output in a separate goroutine so printing can't block indefinitely
+	go func() {
+		var buf bytes.Buffer
+		io.Copy(&buf, r)
+		outC <- buf.String()
+	}()
+
+	os.Args[1] = "_carapace"
+	executeCompleter(completer)
+
+	w.Close()
+	out := <-outC
+	os.Stdout = old
+
+	executable, err := os.Executable()
+	if err != nil {
+		panic(err.Error()) // TODO exit with error message
+	}
+	executableName := filepath.Base(executable)
+	patched := strings.Replace(string(out), fmt.Sprintf("%v _carapace", executableName), fmt.Sprintf("%v %v", executableName, completer), -1)      // general callback
+	patched = strings.Replace(patched, fmt.Sprintf("'%v', '_carapace'", executableName), fmt.Sprintf("'%v', '%v'", executableName, completer), -1) // xonsh callback
+	return patched
+
+}

cmd/carapace/cmd/invoke_test.go

@@ -0,0 +1,44 @@
+package cmd
+
+import (
+	"testing"
+
+	"github.com/rsteube/carapace"
+	"github.com/rsteube/carapace/pkg/sandbox"
+	"github.com/rsteube/carapace/pkg/style"
+)
+
+func TestInvokeFlags(t *testing.T) {
+	sandbox.Package(t, "github.com/rsteube/carapace-bin/cmd/carapace")(func(s *sandbox.Sandbox) {
+		s.Run("tail", "export", "tail", "--fo").
+			Expect(carapace.ActionStyledValuesDescribed(
+				"--follow", "output appended data as the file grows", style.Yellow,
+			).Tag("flags").
+				NoSpace('.').
+				Usage("carapace [flags] [COMPLETER] [bash|elvish|fish|nushell|oil|powershell|tcsh|xonsh|zsh]")) // TODO fix usage
+
+		s.Run("tail", "export", "tail", "--follow=").
+			Expect(carapace.ActionValues(
+				"name",
+				"descriptor",
+			).Prefix("--follow=").
+				Usage("output appended data as the file grows"))
+	})
+}
+
+func TestInvokePositional(t *testing.T) {
+	sandbox.Package(t, "github.com/rsteube/carapace-bin/cmd/carapace")(func(s *sandbox.Sandbox) {
+		s.Run("git", "export", "git", "checko").
+			Expect(carapace.Batch(
+				carapace.ActionValuesDescribed(
+					"checkout", "Switch branches or restore working tree files",
+				).Style(style.Blue).
+					Tag("main commands"),
+				carapace.ActionValuesDescribed(
+					"checkout-index", "Copy files from the index to the working tree",
+				).Style(style.Of(style.Dim, style.Yellow)).
+					Tag("low-level manipulator commands"),
+			).ToA().
+				Usage("carapace [flags] [COMPLETER] [bash|elvish|fish|nushell|oil|powershell|tcsh|xonsh|zsh]")) // TODO fix usage
+	})
+}

cmd/carapace/cmd/list.go

@@ -0,0 +1,75 @@
+package cmd
+
+import (
+	"encoding/json"
+	"fmt"
+	"strconv"
+
+	"github.com/rsteube/carapace"
+	"github.com/rsteube/carapace-bin/cmd/carapace/cmd/completers"
+	"github.com/rsteube/carapace/pkg/style"
+	"github.com/spf13/cobra"
+)
+
+var listCmd = &cobra.Command{
+	Use:   "--list",
+	Short: "",
+	Run: func(cmd *cobra.Command, args []string) {
+		switch cmd.Flag("format").Value.String() {
+		case "json":
+			printCompletersJson()
+		default:
+			printCompleters()
+		}
+	},
+}
+
+func init() {
+	carapace.Gen(listCmd).Standalone()
+
+	listCmd.Flags().String("format", "plain", "output format")
+
+	carapace.Gen(listCmd).FlagCompletion(carapace.ActionMap{
+		"format": carapace.ActionValues("plain", "json").StyleF(func(s string, sc style.Context) string {
+			return style.ForPathExt("."+s, sc)
+		}),
+	})
+
+}
+func printCompleters() {
+	maxlen := 0
+	for _, name := range completers.Names() {
+		if len := len(name); len > maxlen {
+			maxlen = len
+		}
+	}
+
+	for _, name := range completers.Names() {
+		fmt.Printf("%-"+strconv.Itoa(maxlen)+"v %v\n", name, completers.Description(name))
+	}
+}
+
+func printCompletersJson() {
+	// TODO move to completers package
+	type _completer struct {
+		Name        string
+		Description string
+		Spec        string `json:",omitempty"`
+		Overlay     string `json:",omitempty"`
+	}
+
+	_completers := make([]_completer, 0)
+	for _, name := range completers.Names() {
+		specPath, _ := completers.SpecPath(name)       // TODO handle error (log?)
+		overlayPath, _ := completers.OverlayPath(name) // TODO handle error (log?)
+		_completers = append(_completers, _completer{
+			Name:        name,
+			Description: completers.Description(name),
+			Spec:        specPath,
+			Overlay:     overlayPath,
+		})
+	}
+	if m, err := json.Marshal(_completers); err == nil { // TODO handle error (log?)
+		fmt.Println(string(m))
+	}
+}