Allow default for --output flag.

Signed-off-by: sudipto baral <[email protected]>
docker · Jan 15, 2025 · ac35c4e · ac35c4e
1 parent 5c5bc51
commit ac35c4e
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/commands/build.go b/commands/build.go
@@ -585,6 +585,10 @@ func buildCmd(dockerCli command.Cli, rootOpts *rootOptions, debugConfig *debug.D
 	if v := os.Getenv("DOCKER_DEFAULT_PLATFORM"); v != "" {
 		platformsDefault = []string{v}
 	}
+	var outputDefault []string
+	if v := os.Getenv("DOCKER_DEFAULT_OUTPUT"); v != "" {
+		outputDefault = []string{v}
+	}
 
 	flags := cmd.Flags()
 
@@ -616,7 +620,7 @@ func buildCmd(dockerCli command.Cli, rootOpts *rootOptions, debugConfig *debug.D
 
 	flags.StringArrayVar(&options.noCacheFilter, "no-cache-filter", []string{}, "Do not cache specified stages")
 
-	flags.StringArrayVarP(&options.outputs, "output", "o", []string{}, `Output destination (format: "type=local,dest=path")`)
+	flags.StringArrayVarP(&options.outputs, "output", "o", outputDefault, `Output destination (format: "type=local,dest=path")`)
 
 	flags.StringArrayVar(&options.platforms, "platform", platformsDefault, "Set target platform for build")