Nimesh Kulkarni e08aa72569 cmd/docker: fail on unknown command with --version
Running "docker nonexistent --version" printed the CLI version and
exited 0, so it couldn't be used to check whether a command or plugin
is available. Without "--version" the same invocation fails with an
"unknown command" error.

When no built-in command or plugin matches, runDocker falls through to
executing the root command, and cobra handles the "--version" flag
before the root command reports the unknown command. Unset the root
command's version in that fallback, so the standard unknown-command
error is returned.

A global "--version" flag ("docker --version nonexistent") is parsed
before the command name and still prints the version, as do
"docker --version" and "docker nonexistent --help".

Signed-off-by: Nimesh Kulkarni <167794819+GitNimay@users.noreply.github.com>
2026-10-19 19:35:05 +05:30
2024-09-06 10:23:23 +02:00
2025-03-08 22:20:09 +01:00
2026-10-08 20:19:46 +02:00
2026-06-12 18:05:12 +02:00
2026-06-12 18:05:12 +02:00
2017-04-17 17:49:33 -04:00
2023-11-10 21:35:15 +01:00
2025-11-06 15:24:48 +01:00
2026-07-09 01:03:31 +02:00
2024-08-05 11:58:34 +02:00
2022-04-04 10:44:11 +02:00
2026-10-15 21:32:57 +02:00

Docker CLI

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About

This repository is the home of the Docker CLI.

Development

docker/cli is developed using Docker.

Build CLI from source:

docker buildx bake

Build binaries for all supported platforms:

docker buildx bake cross

Build for a specific platform:

docker buildx bake --set binary.platform=linux/arm64 

Build dynamic binary for glibc or musl:

USE_GLIBC=1 docker buildx bake dynbinary 

Run all linting:

docker buildx bake lint shellcheck

Run test:

docker buildx bake test

Run the unit test:

$ make -f docker.Makefile test-unit

Run the full test suite:

$ make -f docker.Makefile test

List all the available targets:

make help

In-container development environment

Start an interactive development environment:

make shell

Brought to you courtesy of our legal counsel. For more context, see the NOTICE document in this repo.

Use and transfer of Docker may be subject to certain restrictions by the United States and other governments.

It is your responsibility to ensure that your use and/or transfer does not violate applicable laws.

For more information, see https://www.bis.doc.gov

Licensing

docker/cli is licensed under the Apache License, Version 2.0. See LICENSE for the full license text.

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