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Display short help menu when --help is used (#4772)

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I feel like I'm always drowning in the help output from `uv` because we
have so many options.

I basically agree with the commentary in
https://github.com/clap-rs/clap/issues/4687 that having different
behaviors for `-h` and `--help` is surprising. I think `--help` is more
obvious for users and I want to optimize for that experience.

This roughly matches the help menus in Cargo and pip.

The `uv help` command can be used for long help. In #4906 and #4909 we
improve that command.

Extends #4904 which adds test cases for the existing behavior.
This commit is contained in:
Zanie Blue 2024-07-09 13:12:01 -04:00 • committed by GitHub
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commit 0bf562f197
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5
crates/uv-cli/src/lib.rs
View file

@ -52,6 +52,7 @@ fn extra_name_with_clap_error(arg: &str) -> Result<ExtraName> {
#[command(name = "uv", author, version = uv_version::version(), long_version = crate::version::version())]
#[command(about = "An extremely fast Python package manager.")]
#[command(propagate_version = true)]
#[command(disable_help_flag = true)]
#[allow(clippy::struct_excessive_bools)]
pub struct Cli {
#[command(subcommand)]
@ -66,6 +67,10 @@ pub struct Cli {
/// The path to a `uv.toml` file to use for configuration.
#[arg(global = true, long, env = "UV_CONFIG_FILE")]
pub config_file: Option<PathBuf>,
/// Print help.
#[arg(global = true, short, long, action = clap::ArgAction::HelpShort)]
help: Option<bool>,
}
#[derive(Parser, Debug, Clone)]

250
crates/uv/tests/help.rs
View file

@ -102,7 +102,7 @@ fn help() {
[env: UV_CONFIG_FILE=]
-h, --help
Print help (see a summary with '-h')
Print help
-V, --version
Print version
@ -134,83 +134,29 @@ fn help_flag() {
Options:
-q, --quiet
Do not print any output
-v, --verbose...
Use verbose output.
You can configure fine-grained logging using the `RUST_LOG` environment variable.
(<https://docs.rs/tracing-subscriber/latest/tracing_subscriber/filter/struct.EnvFilter.html#directives>)
Use verbose output
--color <COLOR_CHOICE>
Control colors in output
[default: auto]
Possible values:
- auto: Enables colored output only when the output is going to a terminal or TTY with
support
- always: Enables colored output regardless of the detected environment
- never: Disables colored output
Control colors in output [default: auto] [possible values: auto, always, never]
--native-tls
Whether to load TLS certificates from the platform's native certificate store.
By default, `uv` loads certificates from the bundled `webpki-roots` crate. The
`webpki-roots` are a reliable set of trust roots from Mozilla, and including them in `uv`
improves portability and performance (especially on macOS).
However, in some cases, you may want to use the platform's native certificate store,
especially if you're relying on a corporate trust root (e.g., for a mandatory proxy)
that's included in your system's certificate store.
[env: UV_NATIVE_TLS=]
Whether to load TLS certificates from the platform's native certificate store [env:
UV_NATIVE_TLS=]
--offline
Disable network access, relying only on locally cached data and locally available files
--python-preference <PYTHON_PREFERENCE>
Whether to prefer using Python from uv or on the system
Possible values:
- only-managed: Only use managed Python installations; never use system Python
installations
- installed: Prefer installed Python installations, only download managed Python
installations if no system Python installation is found
- managed: Prefer managed Python installations over system Python installations, even
if fetching is required
- system: Prefer system Python installations over managed Python installations
- only-system: Only use system Python installations; never use managed Python
installations
Whether to prefer using Python from uv or on the system [possible values: only-managed,
installed, managed, system, only-system]
--python-fetch <PYTHON_FETCH>
Whether to automatically download Python when required
Possible values:
- automatic: Automatically fetch managed Python installations when needed
- manual: Do not automatically fetch managed Python installations; require explicit
installation
Whether to automatically download Python when required [possible values: automatic,
manual]
-n, --no-cache
Avoid reading from or writing to the cache
[env: UV_NO_CACHE=]
Avoid reading from or writing to the cache [env: UV_NO_CACHE=]
--cache-dir [CACHE_DIR]
Path to the cache directory.
Defaults to `$HOME/Library/Caches/uv` on macOS, `$XDG_CACHE_HOME/uv` or `$HOME/.cache/uv`
on Linux, and `{FOLDERID_LocalAppData}/uv/cache` on Windows.
[env: UV_CACHE_DIR=]
Path to the cache directory [env: UV_CACHE_DIR=]
--config-file <CONFIG_FILE>
The path to a `uv.toml` file to use for configuration
[env: UV_CONFIG_FILE=]
The path to a `uv.toml` file to use for configuration [env: UV_CONFIG_FILE=]
-h, --help
Print help (see a summary with '-h')
Print help
-V, --version
Print version
@ -263,7 +209,7 @@ fn help_short_flag() {
--config-file <CONFIG_FILE>
The path to a `uv.toml` file to use for configuration [env: UV_CONFIG_FILE=]
-h, --help
Print help (see more with '--help')
Print help
-V, --version
Print version
@ -369,7 +315,7 @@ fn help_subcommand() {
[env: UV_CONFIG_FILE=]
-h, --help
Print help (see a summary with '-h')
Print help
-V, --version
Print version
@ -479,7 +425,7 @@ fn help_subsubcommand() {
[env: UV_CONFIG_FILE=]
-h, --help
Print help (see a summary with '-h')
Print help
-V, --version
Print version
@ -511,83 +457,29 @@ fn help_flag_subcommand() {
Options:
-q, --quiet
Do not print any output
-v, --verbose...
Use verbose output.
You can configure fine-grained logging using the `RUST_LOG` environment variable.
(<https://docs.rs/tracing-subscriber/latest/tracing_subscriber/filter/struct.EnvFilter.html#directives>)
Use verbose output
--color <COLOR_CHOICE>
Control colors in output
[default: auto]
Possible values:
- auto: Enables colored output only when the output is going to a terminal or TTY with
support
- always: Enables colored output regardless of the detected environment
- never: Disables colored output
Control colors in output [default: auto] [possible values: auto, always, never]
--native-tls
Whether to load TLS certificates from the platform's native certificate store.
By default, `uv` loads certificates from the bundled `webpki-roots` crate. The
`webpki-roots` are a reliable set of trust roots from Mozilla, and including them in `uv`
improves portability and performance (especially on macOS).
However, in some cases, you may want to use the platform's native certificate store,
especially if you're relying on a corporate trust root (e.g., for a mandatory proxy)
that's included in your system's certificate store.
[env: UV_NATIVE_TLS=]
Whether to load TLS certificates from the platform's native certificate store [env:
UV_NATIVE_TLS=]
--offline
Disable network access, relying only on locally cached data and locally available files
--python-preference <PYTHON_PREFERENCE>
Whether to prefer using Python from uv or on the system
Possible values:
- only-managed: Only use managed Python installations; never use system Python
installations
- installed: Prefer installed Python installations, only download managed Python
installations if no system Python installation is found
- managed: Prefer managed Python installations over system Python installations, even
if fetching is required
- system: Prefer system Python installations over managed Python installations
- only-system: Only use system Python installations; never use managed Python
installations
Whether to prefer using Python from uv or on the system [possible values: only-managed,
installed, managed, system, only-system]
--python-fetch <PYTHON_FETCH>
Whether to automatically download Python when required
Possible values:
- automatic: Automatically fetch managed Python installations when needed
- manual: Do not automatically fetch managed Python installations; require explicit
installation
Whether to automatically download Python when required [possible values: automatic,
manual]
-n, --no-cache
Avoid reading from or writing to the cache
[env: UV_NO_CACHE=]
Avoid reading from or writing to the cache [env: UV_NO_CACHE=]
--cache-dir [CACHE_DIR]
Path to the cache directory.
Defaults to `$HOME/Library/Caches/uv` on macOS, `$XDG_CACHE_HOME/uv` or `$HOME/.cache/uv`
on Linux, and `{FOLDERID_LocalAppData}/uv/cache` on Windows.
[env: UV_CACHE_DIR=]
Path to the cache directory [env: UV_CACHE_DIR=]
--config-file <CONFIG_FILE>
The path to a `uv.toml` file to use for configuration
[env: UV_CONFIG_FILE=]
The path to a `uv.toml` file to use for configuration [env: UV_CONFIG_FILE=]
-h, --help
Print help (see a summary with '-h')
Print help
-V, --version
Print version
@ -608,96 +500,36 @@ fn help_flag_subsubcommand() {
Usage: uv python install [OPTIONS] [TARGETS]...
Arguments:
[TARGETS]...
The Python version(s) to install.
If not provided, the requested Python version(s) will be read from the `.python-versions`
or `.python-version` files. If neither file is present, uv will check if it has installed
any Python versions. If not, it will install the latest stable version of Python.
[TARGETS]... The Python version(s) to install
Options:
-f, --force
Force the installation of the requested Python, even if it is already installed
-q, --quiet
Do not print any output
-v, --verbose...
Use verbose output.
You can configure fine-grained logging using the `RUST_LOG` environment variable.
(<https://docs.rs/tracing-subscriber/latest/tracing_subscriber/filter/struct.EnvFilter.html#directives>)
Use verbose output
--color <COLOR_CHOICE>
Control colors in output
[default: auto]
Possible values:
- auto: Enables colored output only when the output is going to a terminal or TTY with
support
- always: Enables colored output regardless of the detected environment
- never: Disables colored output
Control colors in output [default: auto] [possible values: auto, always, never]
--native-tls
Whether to load TLS certificates from the platform's native certificate store.
By default, `uv` loads certificates from the bundled `webpki-roots` crate. The
`webpki-roots` are a reliable set of trust roots from Mozilla, and including them in `uv`
improves portability and performance (especially on macOS).
However, in some cases, you may want to use the platform's native certificate store,
especially if you're relying on a corporate trust root (e.g., for a mandatory proxy)
that's included in your system's certificate store.
[env: UV_NATIVE_TLS=]
Whether to load TLS certificates from the platform's native certificate store [env:
UV_NATIVE_TLS=]
--offline
Disable network access, relying only on locally cached data and locally available files
--python-preference <PYTHON_PREFERENCE>
Whether to prefer using Python from uv or on the system
Possible values:
- only-managed: Only use managed Python installations; never use system Python
installations
- installed: Prefer installed Python installations, only download managed Python
installations if no system Python installation is found
- managed: Prefer managed Python installations over system Python installations, even
if fetching is required
- system: Prefer system Python installations over managed Python installations
- only-system: Only use system Python installations; never use managed Python
installations
Whether to prefer using Python from uv or on the system [possible values: only-managed,
installed, managed, system, only-system]
--python-fetch <PYTHON_FETCH>
Whether to automatically download Python when required
Possible values:
- automatic: Automatically fetch managed Python installations when needed
- manual: Do not automatically fetch managed Python installations; require explicit
installation
Whether to automatically download Python when required [possible values: automatic,
manual]
-n, --no-cache
Avoid reading from or writing to the cache
[env: UV_NO_CACHE=]
Avoid reading from or writing to the cache [env: UV_NO_CACHE=]
--cache-dir [CACHE_DIR]
Path to the cache directory.
Defaults to `$HOME/Library/Caches/uv` on macOS, `$XDG_CACHE_HOME/uv` or `$HOME/.cache/uv`
on Linux, and `{FOLDERID_LocalAppData}/uv/cache` on Windows.
[env: UV_CACHE_DIR=]
Path to the cache directory [env: UV_CACHE_DIR=]
--config-file <CONFIG_FILE>
The path to a `uv.toml` file to use for configuration
[env: UV_CONFIG_FILE=]
The path to a `uv.toml` file to use for configuration [env: UV_CONFIG_FILE=]
-h, --help
Print help (see a summary with '-h')
Print help
-V, --version
Print version