WIP: not working!

this is an attempt to solve
coop-cloud/organising#213, but turns
out it's quite difficult.
https://stackoverflow.com/questions/52774830

cli/app/app.go

@@ -31,6 +31,7 @@ to scaling apps up and spinning them down.
 		appLogsCommand,
 		appCpCommand,
 		appRunCommand,
+		appEditCommand,
 		appRollbackCommand,
 		appSecretCommand,
 		appVolumeCommand,

cli/app/edit.go

@@ -0,0 +1,95 @@
+package app
+
+import (
+	"fmt"
+	"os"
+	"strings"
+
+	"coopcloud.tech/abra/cli/internal"
+	"coopcloud.tech/abra/pkg/config"
+	"coopcloud.tech/abra/pkg/upstream/container"
+	"github.com/docker/cli/cli/command"
+	"github.com/docker/docker/api/types"
+	"github.com/sirupsen/logrus"
+	"github.com/urfave/cli/v2"
+)
+
+var appEditCommand = &cli.Command{
+	Name:    "edit-file",
+	Aliases: []string{"e", "edit"},
+	Usage:   "Edit a file in the container",
+	Description: `
+This command allows you to edit files inside a runnning container. This is 
+usually discouraged but sometimes necessary. Syntax:
+	
+	abra app edit-file <app> <service> <file>
+
+	i.e.
+	abra app edit-file traefik_example_com app /etc/passwd
+
+It will automatically get the ownership and access rights of the file using
+stat inside the container and then run chmod and chown after sending the file.
+	`,
+	Action: func(c *cli.Context) error {
+		app := internal.ValidateApp(c)
+
+		service := c.Args().Get(1)
+		file := c.Args().Get(2)
+		if file == "" {
+			logrus.Fatal("missing <file> argument")
+		} else if service == "" {
+			logrus.Fatal("missing <service> argument")
+		}
+		splitpath := strings.Split(file, "/")
+		filename := splitpath[len(splitpath)-1]
+		editDir := fmt.Sprintf("%s/tmp/edits/%s_%s", config.ABRA_DIR, app.Name, service)
+		if err := os.MkdirAll(editDir, 0755); err != nil {
+			logrus.Fatal(err)
+		}
+		fmt.Println("Success!!")
+		fmt.Println(editDir)
+		err := internal.ConfigureAndCp(c, app, file, editDir, service, false)
+		if err != nil {
+			logrus.Fatal(err)
+		}
+
+		// pull stuff from stat
+		cmd := []string{"stat", "-c", "%a", file}
+		execCreateOpts := types.ExecConfig{
+			AttachStderr: true,
+			AttachStdin:  true,
+			AttachStdout: true,
+			Cmd:          cmd,
+			Detach:       false,
+			Tty:          true,
+		}
+
+		// FIXME: an absolutely monumental hack to instantiate another command-line
+		// client withing our command-line client so that we pass something down
+		// the tubes that satisfies the necessary interface requirements. We should
+		// refactor our vendored container code to not require all this cruft.  For
+		// now, It Works.
+		dcli, err := command.NewDockerCli()
+		if err != nil {
+			logrus.Fatal(err)
+		}
+
+		if err := container.RunExec(dcli, cl, containers[0].ID, &execCreateOpts); err != nil {
+			logrus.Fatal(err)
+		}
+		return nil
+
+	},
+	BashComplete: func(c *cli.Context) {
+		appNames, err := config.GetAppNames()
+		if err != nil {
+			logrus.Warn(err)
+		}
+		if c.NArg() > 0 {
+			return
+		}
+		for _, a := range appNames {
+			fmt.Println(a)
+		}
+	},
+}