Hide the directory column on narrow terminal

If the terminal width does not fit all the list
columns, then hide "dir" column (unless requested).

Signed-off-by: Anders F Björklund <[email protected]>

cmd/limactl/list.go

@@ -4,15 +4,19 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"io"
+	"os"
 	"os/user"
 	"reflect"
 	"sort"
 	"strings"
 	"text/tabwriter"
 	"text/template"
 
+	"github.com/cheggaaa/pb/v3/termutil"
 	"github.com/docker/go-units"
 	"github.com/lima-vm/lima/pkg/store"
+	"github.com/mattn/go-isatty"
 	"github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 )
@@ -63,6 +67,18 @@ func instanceMatches(arg string, instances []string) []string {
 	return matches
 }
 
+func terminalWidth(out io.Writer) int {
+	width := 120
+	if out == os.Stdout {
+		if isatty.IsTerminal(os.Stdout.Fd()) || isatty.IsCygwinTerminal(os.Stdout.Fd()) {
+			if w, err := termutil.TerminalWidth(); err == nil {
+				return w
+			}
+		}
+	}
+	return width
+}
+
 func listAction(cmd *cobra.Command, args []string) error {
 	quiet, err := cmd.Flags().GetBool("quiet")
 	if err != nil {
@@ -182,21 +198,27 @@ func listAction(cmd *cobra.Command, args []string) error {
 		return err
 	}
 
-	w := tabwriter.NewWriter(cmd.OutOrStdout(), 4, 8, 4, ' ', 0)
+	out := cmd.OutOrStdout()
+	w := tabwriter.NewWriter(out, 4, 8, 4, ' ', 0)
 
 	fmt.Fprint(w, "NAME\tSTATUS\tSSH")
+	cols := 5 // two for status, ssh
 	hideType := len(types) == 1 && !show
 	if !hideType {
 		fmt.Fprint(w, "\tVMTYPE")
+		cols++
 	}
 	hideArch := len(archs) == 1 && !show
 	if !hideArch {
 		fmt.Fprint(w, "\tARCH")
+		cols++
 	}
 	fmt.Fprint(w, "\tCPUS\tMEMORY\tDISK")
-	hideDir := false && !show
+	cols += 3
+	hideDir := (cols+2)*8 > terminalWidth(out) && !show
 	if !hideDir {
 		fmt.Fprint(w, "\tDIR")
+		cols += 2 // two for dir
 	}
 	fmt.Fprintln(w)