feat: add app config command

TODO.md

@@ -18,7 +18,7 @@
     - [ ] `deploy` (WIP: decentral1se)
     - [x] `check`
     - [x] `version`
-    - [ ] `config` (WIP: decentral1se)
+    - [x] `config`
     - [ ] `cp`
     - [ ] `logs`
     - [x] `ps`

cli/app/config.go

@@ -1,7 +1,50 @@
 package app
 
-import "github.com/urfave/cli/v2"
+import (
+	"errors"
+	"os"
+	"os/exec"
+
+	"coopcloud.tech/abra/cli/internal"
+	"coopcloud.tech/abra/config"
+	"github.com/AlecAivazis/survey/v2"
+	"github.com/sirupsen/logrus"
+	"github.com/urfave/cli/v2"
+)
 
 var appConfigCommand = &cli.Command{
-	Name: "config",
+	Name:  "config",
+	Usage: "edit app environment config",
+	Action: func(c *cli.Context) error {
+		appName := c.Args().First()
+		if appName == "" {
+			internal.ShowSubcommandHelpAndError(c, errors.New("no app name provided"))
+		}
+
+		ed, ok := os.LookupEnv("EDITOR")
+		if !ok {
+			edPrompt := &survey.Select{
+				Message: "Which editor do you wish to use?",
+				Options: []string{"vi", "vim", "nvim", "nano", "pico", "emacs"},
+			}
+			if err := survey.AskOne(edPrompt, &ed); err != nil {
+				logrus.Fatal(err)
+			}
+		}
+
+		appFiles, err := config.LoadAppFiles("")
+		if err != nil {
+			logrus.Fatal(err)
+		}
+
+		cmd := exec.Command(ed, appFiles[appName].Path)
+		cmd.Stdin = os.Stdin
+		cmd.Stdout = os.Stdout
+		cmd.Stderr = os.Stderr
+		if err := cmd.Run(); err != nil {
+			logrus.Fatal(err)
+		}
+
+		return nil
+	},
 }