feat: support abra upgrading

cli/cli.go

@@ -55,6 +55,7 @@ func RunApp(version, commit string) {
 			server.ServerCommand,
 			recipe.RecipeCommand,
 			VersionCommand,
+			UpgradeCommand,
 		},
 		Flags: []cli.Flag{
 			VerboseFlag,

cli/internal/command.go

@@ -0,0 +1,38 @@
+package internal
+
+import (
+	"bufio"
+	"fmt"
+	"os/exec"
+)
+
+func RunCmd(cmd *exec.Cmd) error {
+	r, err := cmd.StdoutPipe()
+	if err != nil {
+		return err
+	}
+
+	cmd.Stderr = cmd.Stdout
+	done := make(chan struct{})
+	scanner := bufio.NewScanner(r)
+
+	go func() {
+		for scanner.Scan() {
+			line := scanner.Text()
+			fmt.Println(line)
+		}
+		done <- struct{}{}
+	}()
+
+	if err := cmd.Start(); err != nil {
+		return err
+	}
+
+	<-done
+
+	if err := cmd.Wait(); err != nil {
+		return err
+	}
+
+	return nil
+}

cli/upgrade.go

@@ -0,0 +1,22 @@
+package cli
+
+import (
+	"os/exec"
+
+	"coopcloud.tech/abra/cli/internal"
+	"github.com/sirupsen/logrus"
+	"github.com/urfave/cli/v2"
+)
+
+// UpgradeCommand upgrades abra in-place.
+var UpgradeCommand = &cli.Command{
+	Name:  "upgrade",
+	Usage: "Upgrade abra",
+	Action: func(c *cli.Context) error {
+		cmd := exec.Command("bash", "-c", "curl -s https://install.abra.coopcloud.tech | bash")
+		if err := internal.RunCmd(cmd); err != nil {
+			logrus.Fatal(err)
+		}
+		return nil
+	},
+}