fix: obtain Postgres URL from branches get command

cmd/branches.go

@@ -82,7 +82,7 @@ var (
 			} else {
 				branchId = args[0]
 			}
-			return get.Run(ctx, branchId)
+			return get.Run(ctx, branchId, afero.NewOsFs())
 		},
 	}
 
@@ -165,6 +165,8 @@ func init() {
 	createFlags.Var(&branchRegion, "region", "Select a region to deploy the branch database.")
 	createFlags.Var(&size, "size", "Select a desired instance size for the branch database.")
 	createFlags.BoolVar(&persistent, "persistent", false, "Whether to create a persistent branch.")
+	getFlags := branchGetCmd.Flags()
+	getFlags.VarP(&utils.OutputFormat, "output", "o", "Output format of branch details.")
 	branchesCmd.AddCommand(branchCreateCmd)
 	branchesCmd.AddCommand(branchListCmd)
 	branchesCmd.AddCommand(branchGetCmd)

internal/branches/get/get.go

@@ -3,13 +3,17 @@ package get
 import (
 	"context"
 	"fmt"
+	"os"
 
 	"github.com/go-errors/errors"
+	"github.com/jackc/pgconn"
+	"github.com/spf13/afero"
 	"github.com/supabase/cli/internal/migration/list"
 	"github.com/supabase/cli/internal/utils"
+	"github.com/supabase/cli/pkg/cast"
 )
 
-func Run(ctx context.Context, branchId string) error {
+func Run(ctx context.Context, branchId string, fsys afero.Fs) error {
 	resp, err := utils.GetSupabase().V1GetABranchConfigWithResponse(ctx, branchId)
 	if err != nil {
 		return errors.Errorf("failed to retrieve preview branch: %w", err)
@@ -29,17 +33,34 @@ func Run(ctx context.Context, branchId string) error {
 		resp.JSON200.JwtSecret = &masked
 	}
 
-	table := `|HOST|PORT|USER|PASSWORD|JWT SECRET|POSTGRES VERSION|STATUS|
-|-|-|-|-|-|-|-|
+	config := pgconn.Config{
+		Host:     utils.GetSupabaseDbHost(resp.JSON200.DbHost),
+		Port:     cast.UIntToUInt16(cast.IntToUint(resp.JSON200.DbPort)),
+		User:     *resp.JSON200.DbUser,
+		Password: *resp.JSON200.DbPass,
+	}
+
+	postgresConnectionString := utils.ToPostgresURL(config)
+	if utils.OutputFormat.Value != utils.OutputPretty {
+		envs := map[string]string{
+			"POSTGRES_URL": postgresConnectionString,
+		}
+		return utils.EncodeOutput(utils.OutputFormat.Value, os.Stdout, envs)
+	}
+
+	table := `|HOST|PORT|USER|PASSWORD|JWT SECRET|POSTGRES VERSION|STATUS|POSTGRES URL|
+|-|-|-|-|-|-|-|-|
 ` + fmt.Sprintf(
-		"|`%s`|`%d`|`%s`|`%s`|`%s`|`%s`|`%s`|\n",
+		"|`%s`|`%d`|`%s`|`%s`|`%s`|`%s`|`%s`|`%s`|\n",
 		resp.JSON200.DbHost,
 		resp.JSON200.DbPort,
 		*resp.JSON200.DbUser,
 		*resp.JSON200.DbPass,
 		*resp.JSON200.JwtSecret,
 		resp.JSON200.PostgresVersion,
 		resp.JSON200.Status,
+		postgresConnectionString,
 	)
+
 	return list.RenderTable(table)
 }

pkg/cast/cast.go

@@ -10,6 +10,14 @@ func UintToInt(value uint) int {
 	return math.MaxInt
 }
 
+// UIntToUInt16 converts a uint to an uint16, handling potential overflow
+func UIntToUInt16(value uint) uint16 {
+	if value <= math.MaxUint16 {
+		return uint16(value)
+	}
+	return math.MaxUint16
+}
+
 // IntToUint converts an int to a uint, handling negative values
 func IntToUint(value int) uint {
 	if value < 0 {