uv/crates/uv/tests/help.rs

844 lines
34 KiB
Rust

use common::{uv_snapshot, TestContext};
mod common;
#[test]
fn help() {
let context = TestContext::new_with_versions(&[]);
// The `uv help` command should show the long help message
uv_snapshot!(context.filters(), context.help(), @r###"
success: true
exit_code: 0
----- stdout -----
An extremely fast Python package manager.
Usage: uv [OPTIONS] <COMMAND>
Commands:
run Run a command or script
init Create a new project
add Add dependencies to the project
remove Remove dependencies from the project
sync Update the project's environment
lock Update the project's lockfile
tree Display the project's dependency tree
tool Run and install commands provided by Python packages
python Manage Python versions and installations
pip Manage Python packages with a pip-compatible interface
venv Create a virtual environment
cache Manage uv's cache
version Display uv's version
generate-shell-completion Generate shell completion
help Display documentation for a command
Cache options:
-n, --no-cache Avoid reading from or writing to the cache, instead using a temporary
directory for the duration of the operation [env: UV_NO_CACHE=]
--cache-dir [CACHE_DIR] Path to the cache directory [env: UV_CACHE_DIR=]
Python options:
--python-preference <PYTHON_PREFERENCE>
Whether to prefer uv-managed or system Python installations [possible values:
only-managed, managed, system, only-system]
--no-python-downloads
Disable automatic downloads of Python
Global options:
-q, --quiet Do not print any output
-v, --verbose... Use verbose output
--color <COLOR_CHOICE> 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 [env: UV_NATIVE_TLS=]
--offline Disable network access
--no-progress Hide all progress outputs
--config-file <CONFIG_FILE> The path to a `uv.toml` file to use for configuration [env:
UV_CONFIG_FILE=]
--no-config Avoid discovering configuration files (`pyproject.toml`,
`uv.toml`) [env: UV_NO_CONFIG=]
-h, --help Display the concise help for this command
-V, --version Display the uv version
Use `uv help <command>` for more information on a specific command.
----- stderr -----
"###);
}
#[test]
fn help_flag() {
let context = TestContext::new_with_versions(&[]);
uv_snapshot!(context.filters(), context.command().arg("--help"), @r###"
success: true
exit_code: 0
----- stdout -----
An extremely fast Python package manager.
Usage: uv [OPTIONS] <COMMAND>
Commands:
run Run a command or script
init Create a new project
add Add dependencies to the project
remove Remove dependencies from the project
sync Update the project's environment
lock Update the project's lockfile
tree Display the project's dependency tree
tool Run and install commands provided by Python packages
python Manage Python versions and installations
pip Manage Python packages with a pip-compatible interface
venv Create a virtual environment
cache Manage uv's cache
version Display uv's version
help Display documentation for a command
Cache options:
-n, --no-cache Avoid reading from or writing to the cache, instead using a temporary
directory for the duration of the operation [env: UV_NO_CACHE=]
--cache-dir [CACHE_DIR] Path to the cache directory [env: UV_CACHE_DIR=]
Python options:
--python-preference <PYTHON_PREFERENCE>
Whether to prefer uv-managed or system Python installations [possible values:
only-managed, managed, system, only-system]
--no-python-downloads
Disable automatic downloads of Python
Global options:
-q, --quiet Do not print any output
-v, --verbose... Use verbose output
--color <COLOR_CHOICE> 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 [env: UV_NATIVE_TLS=]
--offline Disable network access
--no-progress Hide all progress outputs
--config-file <CONFIG_FILE> The path to a `uv.toml` file to use for configuration [env:
UV_CONFIG_FILE=]
--no-config Avoid discovering configuration files (`pyproject.toml`,
`uv.toml`) [env: UV_NO_CONFIG=]
-h, --help Display the concise help for this command
-V, --version Display the uv version
Use `uv help` for more details.
----- stderr -----
"###);
}
#[test]
fn help_short_flag() {
let context = TestContext::new_with_versions(&[]);
uv_snapshot!(context.filters(), context.command().arg("-h"), @r###"
success: true
exit_code: 0
----- stdout -----
An extremely fast Python package manager.
Usage: uv [OPTIONS] <COMMAND>
Commands:
run Run a command or script
init Create a new project
add Add dependencies to the project
remove Remove dependencies from the project
sync Update the project's environment
lock Update the project's lockfile
tree Display the project's dependency tree
tool Run and install commands provided by Python packages
python Manage Python versions and installations
pip Manage Python packages with a pip-compatible interface
venv Create a virtual environment
cache Manage uv's cache
version Display uv's version
help Display documentation for a command
Cache options:
-n, --no-cache Avoid reading from or writing to the cache, instead using a temporary
directory for the duration of the operation [env: UV_NO_CACHE=]
--cache-dir [CACHE_DIR] Path to the cache directory [env: UV_CACHE_DIR=]
Python options:
--python-preference <PYTHON_PREFERENCE>
Whether to prefer uv-managed or system Python installations [possible values:
only-managed, managed, system, only-system]
--no-python-downloads
Disable automatic downloads of Python
Global options:
-q, --quiet Do not print any output
-v, --verbose... Use verbose output
--color <COLOR_CHOICE> 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 [env: UV_NATIVE_TLS=]
--offline Disable network access
--no-progress Hide all progress outputs
--config-file <CONFIG_FILE> The path to a `uv.toml` file to use for configuration [env:
UV_CONFIG_FILE=]
--no-config Avoid discovering configuration files (`pyproject.toml`,
`uv.toml`) [env: UV_NO_CONFIG=]
-h, --help Display the concise help for this command
-V, --version Display the uv version
Use `uv help` for more details.
----- stderr -----
"###);
}
#[test]
fn help_subcommand() {
let context = TestContext::new_with_versions(&[]);
uv_snapshot!(context.filters(), context.help().arg("python"), @r###"
success: true
exit_code: 0
----- stdout -----
Manage Python versions and installations
Generally, uv first searches for Python in a virtual environment, either
active or in a `.venv` directory in the current working directory or
any parent directory. If a virtual environment is not required, uv will
then search for a Python interpreter. Python interpreters are found by
searching for Python executables in the `PATH` environment variable.
On Windows, the `py` launcher is also invoked to find Python
executables.
By default, uv will download Python if a version cannot be found. This
behavior can be disabled with the `--python-downloads` option.
The `--python` option allows requesting a different interpreter.
The following Python version request formats are supported:
- `<version>` e.g. `3`, `3.12`, `3.12.3`
- `<version-specifier>` e.g. `>=3.12,<3.13`
- `<implementation>` e.g. `cpython` or `cp`
- `<implementation>@<version>` e.g. `cpython@3.12`
- `<implementation><version>` e.g. `cpython3.12` or `cp312`
- `<implementation><version-specifier>` e.g. `cpython>=3.12,<3.13`
- `<implementation>-<version>-<os>-<arch>-<libc>` e.g.
`cpython-3.12.3-macos-aarch64-none`
Additionally, a specific system Python interpreter can often be
requested with:
- `<executable-path>` e.g. `/opt/homebrew/bin/python3`
- `<executable-name>` e.g. `mypython3`
- `<install-dir>` e.g. `/some/environment/`
When the `--python` option is used, normal discovery rules apply but
discovered interpreters are checked for compatibility with the request,
e.g., if `pypy` is requested, uv will first check if the virtual
environment contains a PyPy interpreter then check if each executable in
the path is a PyPy interpreter.
uv supports discovering CPython, PyPy, and GraalPy interpreters.
Unsupported interpreters will be skipped during discovery. If an
unsupported interpreter implementation is requested, uv will exit with
an error.
Usage: uv python [OPTIONS] <COMMAND>
Commands:
list List the available Python installations
install Download and install Python versions
find Search for a Python installation
pin Pin to a specific Python version
dir Show the uv Python installation directory
uninstall Uninstall Python versions
Cache options:
-n, --no-cache
Avoid reading from or writing to the cache, instead using a temporary directory for the
duration of the operation
[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=]
Python options:
--python-preference <PYTHON_PREFERENCE>
Whether to prefer uv-managed or system Python installations.
By default, uv prefers using Python versions it manages. However, it will use system
Python installations if a uv-managed Python is not installed. This option allows
prioritizing or ignoring system Python installations.
Possible values:
- only-managed: Only use managed Python installations; never use system Python
installations
- managed: Prefer managed Python installations over system Python installations
- system: Prefer system Python installations over managed Python installations
- only-system: Only use system Python installations; never use managed Python
installations
--no-python-downloads
Disable automatic downloads of Python
Global 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>)
--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
--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=]
--offline
Disable network access.
When disabled, uv will only use locally cached data and locally available files.
--no-progress
Hide all progress outputs.
For example, spinners or progress bars.
--config-file <CONFIG_FILE>
The path to a `uv.toml` file to use for configuration.
While uv configuration can be included in a `pyproject.toml` file, it is not allowed in
this context.
[env: UV_CONFIG_FILE=]
--no-config
Avoid discovering configuration files (`pyproject.toml`, `uv.toml`).
Normally, configuration files are discovered in the current directory, parent directories,
or user configuration directories.
[env: UV_NO_CONFIG=]
-h, --help
Display the concise help for this command
-V, --version
Display the uv version
Use `uv help python <command>` for more information on a specific command.
----- stderr -----
"###);
}
#[test]
fn help_subsubcommand() {
let context = TestContext::new_with_versions(&[]);
uv_snapshot!(context.filters(), context.help().arg("python").arg("install"), @r###"
success: true
exit_code: 0
----- stdout -----
Download and install Python versions.
Multiple Python versions may be requested.
Supports CPython and PyPy.
CPython distributions are downloaded from the `python-build-standalone` project.
Python versions are installed into the uv Python directory, which can be retrieved with `uv python
dir`. A `python` executable is not made globally available, managed Python versions are only used in
uv commands or in active virtual environments.
See `uv help python` to view supported request formats.
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.
See `uv help python` to view supported request formats.
Options:
-r, --reinstall
Reinstall the requested Python version, if it's already installed.
By default, uv will exit successfully if the version is already installed.
Cache options:
-n, --no-cache
Avoid reading from or writing to the cache, instead using a temporary directory for the
duration of the operation
[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=]
Python options:
--python-preference <PYTHON_PREFERENCE>
Whether to prefer uv-managed or system Python installations.
By default, uv prefers using Python versions it manages. However, it will use system
Python installations if a uv-managed Python is not installed. This option allows
prioritizing or ignoring system Python installations.
Possible values:
- only-managed: Only use managed Python installations; never use system Python
installations
- managed: Prefer managed Python installations over system Python installations
- system: Prefer system Python installations over managed Python installations
- only-system: Only use system Python installations; never use managed Python
installations
--no-python-downloads
Disable automatic downloads of Python
Global 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>)
--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
--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=]
--offline
Disable network access.
When disabled, uv will only use locally cached data and locally available files.
--no-progress
Hide all progress outputs.
For example, spinners or progress bars.
--config-file <CONFIG_FILE>
The path to a `uv.toml` file to use for configuration.
While uv configuration can be included in a `pyproject.toml` file, it is not allowed in
this context.
[env: UV_CONFIG_FILE=]
--no-config
Avoid discovering configuration files (`pyproject.toml`, `uv.toml`).
Normally, configuration files are discovered in the current directory, parent directories,
or user configuration directories.
[env: UV_NO_CONFIG=]
-h, --help
Display the concise help for this command
-V, --version
Display the uv version
----- stderr -----
"###);
}
#[test]
fn help_flag_subcommand() {
let context = TestContext::new_with_versions(&[]);
uv_snapshot!(context.filters(), context.command().arg("python").arg("--help"), @r###"
success: true
exit_code: 0
----- stdout -----
Manage Python versions and installations
Usage: uv python [OPTIONS] <COMMAND>
Commands:
list List the available Python installations
install Download and install Python versions
find Search for a Python installation
pin Pin to a specific Python version
dir Show the uv Python installation directory
uninstall Uninstall Python versions
Cache options:
-n, --no-cache Avoid reading from or writing to the cache, instead using a temporary
directory for the duration of the operation [env: UV_NO_CACHE=]
--cache-dir [CACHE_DIR] Path to the cache directory [env: UV_CACHE_DIR=]
Python options:
--python-preference <PYTHON_PREFERENCE>
Whether to prefer uv-managed or system Python installations [possible values:
only-managed, managed, system, only-system]
--no-python-downloads
Disable automatic downloads of Python
Global options:
-q, --quiet Do not print any output
-v, --verbose... Use verbose output
--color <COLOR_CHOICE> 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 [env: UV_NATIVE_TLS=]
--offline Disable network access
--no-progress Hide all progress outputs
--config-file <CONFIG_FILE> The path to a `uv.toml` file to use for configuration [env:
UV_CONFIG_FILE=]
--no-config Avoid discovering configuration files (`pyproject.toml`,
`uv.toml`) [env: UV_NO_CONFIG=]
-h, --help Display the concise help for this command
-V, --version Display the uv version
Use `uv help python` for more details.
----- stderr -----
"###);
}
#[test]
fn help_flag_subsubcommand() {
let context = TestContext::new_with_versions(&[]);
uv_snapshot!(context.filters(), context.command().arg("python").arg("install").arg("--help"), @r###"
success: true
exit_code: 0
----- stdout -----
Download and install Python versions
Usage: uv python install [OPTIONS] [TARGETS]...
Arguments:
[TARGETS]... The Python version(s) to install
Options:
-r, --reinstall Reinstall the requested Python version, if it's already installed
Cache options:
-n, --no-cache Avoid reading from or writing to the cache, instead using a temporary
directory for the duration of the operation [env: UV_NO_CACHE=]
--cache-dir [CACHE_DIR] Path to the cache directory [env: UV_CACHE_DIR=]
Python options:
--python-preference <PYTHON_PREFERENCE>
Whether to prefer uv-managed or system Python installations [possible values:
only-managed, managed, system, only-system]
--no-python-downloads
Disable automatic downloads of Python
Global options:
-q, --quiet Do not print any output
-v, --verbose... Use verbose output
--color <COLOR_CHOICE> 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 [env: UV_NATIVE_TLS=]
--offline Disable network access
--no-progress Hide all progress outputs
--config-file <CONFIG_FILE> The path to a `uv.toml` file to use for configuration [env:
UV_CONFIG_FILE=]
--no-config Avoid discovering configuration files (`pyproject.toml`,
`uv.toml`) [env: UV_NO_CONFIG=]
-h, --help Display the concise help for this command
-V, --version Display the uv version
----- stderr -----
"###);
}
#[test]
fn help_unknown_subcommand() {
let context = TestContext::new_with_versions(&[]);
uv_snapshot!(context.filters(), context.help().arg("foobar"), @r###"
success: false
exit_code: 2
----- stdout -----
----- stderr -----
error: There is no command `foobar` for `uv`. Did you mean one of:
run
init
add
remove
sync
lock
tree
tool
python
pip
venv
cache
version
generate-shell-completion
"###);
uv_snapshot!(context.filters(), context.help().arg("foo").arg("bar"), @r###"
success: false
exit_code: 2
----- stdout -----
----- stderr -----
error: There is no command `foo bar` for `uv`. Did you mean one of:
run
init
add
remove
sync
lock
tree
tool
python
pip
venv
cache
version
generate-shell-completion
"###);
}
#[test]
fn help_unknown_subsubcommand() {
let context = TestContext::new_with_versions(&[]);
uv_snapshot!(context.filters(), context.help().arg("python").arg("foobar"), @r###"
success: false
exit_code: 2
----- stdout -----
----- stderr -----
error: There is no command `foobar` for `uv python`. Did you mean one of:
list
install
find
pin
dir
uninstall
"###);
}
#[test]
fn help_with_global_option() {
let context = TestContext::new_with_versions(&[]);
uv_snapshot!(context.filters(), context.help().arg("--no-cache"), @r###"
success: true
exit_code: 0
----- stdout -----
An extremely fast Python package manager.
Usage: uv [OPTIONS] <COMMAND>
Commands:
run Run a command or script
init Create a new project
add Add dependencies to the project
remove Remove dependencies from the project
sync Update the project's environment
lock Update the project's lockfile
tree Display the project's dependency tree
tool Run and install commands provided by Python packages
python Manage Python versions and installations
pip Manage Python packages with a pip-compatible interface
venv Create a virtual environment
cache Manage uv's cache
version Display uv's version
generate-shell-completion Generate shell completion
help Display documentation for a command
Cache options:
-n, --no-cache Avoid reading from or writing to the cache, instead using a temporary
directory for the duration of the operation [env: UV_NO_CACHE=]
--cache-dir [CACHE_DIR] Path to the cache directory [env: UV_CACHE_DIR=]
Python options:
--python-preference <PYTHON_PREFERENCE>
Whether to prefer uv-managed or system Python installations [possible values:
only-managed, managed, system, only-system]
--no-python-downloads
Disable automatic downloads of Python
Global options:
-q, --quiet Do not print any output
-v, --verbose... Use verbose output
--color <COLOR_CHOICE> 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 [env: UV_NATIVE_TLS=]
--offline Disable network access
--no-progress Hide all progress outputs
--config-file <CONFIG_FILE> The path to a `uv.toml` file to use for configuration [env:
UV_CONFIG_FILE=]
--no-config Avoid discovering configuration files (`pyproject.toml`,
`uv.toml`) [env: UV_NO_CONFIG=]
-h, --help Display the concise help for this command
-V, --version Display the uv version
Use `uv help <command>` for more information on a specific command.
----- stderr -----
"###);
}
#[test]
fn help_with_help() {
let context = TestContext::new_with_versions(&[]);
uv_snapshot!(context.filters(), context.help().arg("--help"), @r###"
success: true
exit_code: 0
----- stdout -----
Display documentation for a command
Usage: uv help [OPTIONS] [COMMAND]...
Options:
--no-pager Disable pager when printing help
----- stderr -----
"###);
}
#[test]
fn help_with_version() {
let context = TestContext::new_with_versions(&[]);
uv_snapshot!(context.filters(), context.help().arg("--version"), @r###"
success: true
exit_code: 0
----- stdout -----
uv [VERSION] ([COMMIT] DATE)
----- stderr -----
"###);
}
#[test]
fn help_with_no_pager() {
let context = TestContext::new_with_versions(&[]);
// We can't really test whether the --no-pager option works with a snapshot test.
// It's still nice to have a test for the option to confirm the option exists.
uv_snapshot!(context.filters(), context.help().arg("--no-pager"), @r###"
success: true
exit_code: 0
----- stdout -----
An extremely fast Python package manager.
Usage: uv [OPTIONS] <COMMAND>
Commands:
run Run a command or script
init Create a new project
add Add dependencies to the project
remove Remove dependencies from the project
sync Update the project's environment
lock Update the project's lockfile
tree Display the project's dependency tree
tool Run and install commands provided by Python packages
python Manage Python versions and installations
pip Manage Python packages with a pip-compatible interface
venv Create a virtual environment
cache Manage uv's cache
version Display uv's version
generate-shell-completion Generate shell completion
help Display documentation for a command
Cache options:
-n, --no-cache Avoid reading from or writing to the cache, instead using a temporary
directory for the duration of the operation [env: UV_NO_CACHE=]
--cache-dir [CACHE_DIR] Path to the cache directory [env: UV_CACHE_DIR=]
Python options:
--python-preference <PYTHON_PREFERENCE>
Whether to prefer uv-managed or system Python installations [possible values:
only-managed, managed, system, only-system]
--no-python-downloads
Disable automatic downloads of Python
Global options:
-q, --quiet Do not print any output
-v, --verbose... Use verbose output
--color <COLOR_CHOICE> 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 [env: UV_NATIVE_TLS=]
--offline Disable network access
--no-progress Hide all progress outputs
--config-file <CONFIG_FILE> The path to a `uv.toml` file to use for configuration [env:
UV_CONFIG_FILE=]
--no-config Avoid discovering configuration files (`pyproject.toml`,
`uv.toml`) [env: UV_NO_CONFIG=]
-h, --help Display the concise help for this command
-V, --version Display the uv version
Use `uv help <command>` for more information on a specific command.
----- stderr -----
"###);
}