Introduce a JSON output table mechanic

- Create JSONTable as a proxy/extension to tablewriter which can also output JSON.
- Implement machine readable output for `server list` and `recipe list`

cli/internal/new.go

@@ -7,12 +7,12 @@ import (
 	"coopcloud.tech/abra/pkg/app"
 	"coopcloud.tech/abra/pkg/config"
 	"coopcloud.tech/abra/pkg/formatter"
+	"coopcloud.tech/abra/pkg/jsontable"
 	"coopcloud.tech/abra/pkg/recipe"
 	recipePkg "coopcloud.tech/abra/pkg/recipe"
 	"coopcloud.tech/abra/pkg/secret"
 	"coopcloud.tech/abra/pkg/ssh"
 	"github.com/AlecAivazis/survey/v2"
-	"github.com/olekukonko/tablewriter"
 	"github.com/sirupsen/logrus"
 	"github.com/urfave/cli"
 )
@@ -144,7 +144,7 @@ func NewAction(c *cli.Context) error {
 	}
 
 	var secrets AppSecrets
-	var secretTable *tablewriter.Table
+	var secretTable *jsontable.JSONTable
 	if Secrets {
 		if err := ssh.EnsureHostKey(NewAppServer); err != nil {
 			logrus.Fatal(err)

cli/recipe/list.go

@@ -27,6 +27,7 @@ var recipeListCommand = cli.Command{
 	Aliases: []string{"ls"},
 	Flags: []cli.Flag{
 		internal.DebugFlag,
+		internal.MachineReadableFlag,
 		patternFlag,
 	},
 	Before: internal.SubCommandBefore,
@@ -66,10 +67,14 @@ var recipeListCommand = cli.Command{
 			}
 		}
 
-		table.SetCaption(true, fmt.Sprintf("total recipes: %v", len))
-
 		if table.NumLines() > 0 {
-			table.Render()
+			if internal.MachineReadable {
+				table.SetCaption(false, "")
+				table.JSONRender()
+			} else {
+				table.SetCaption(true, fmt.Sprintf("total recipes: %v", len))
+				table.Render()
+			}
 		}
 
 		return nil

cli/server/list.go

@@ -18,6 +18,7 @@ var serverListCommand = cli.Command{
 	Usage:   "List managed servers",
 	Flags: []cli.Flag{
 		internal.DebugFlag,
+		internal.MachineReadableFlag,
 	},
 	Before: internal.SubCommandBefore,
 	Action: func(c *cli.Context) error {
@@ -29,8 +30,11 @@ var serverListCommand = cli.Command{
 
 		tableColumns := []string{"name", "host", "user", "port"}
 		table := formatter.CreateTable(tableColumns)
-		defer table.Render()
-
+		if internal.MachineReadable {
+			defer table.JSONRender()
+		} else {
+			defer table.Render()
+		}
 		serverNames, err := config.ReadServerNames()
 		if err != nil {
 			logrus.Fatal(err)