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cargo-build(1)

NAME

Cargo构建-编译当前包

SYNOPSIS

cargo build [options]

DESCRIPTION

编译本地包及其所有依赖项。

OPTIONS

Package Selection

默认情况下，如果未提供包选择选项，则选择的包取决于选择的清单文件（如果需要，则基于当前工作目录）--manifest-path未给出）。如果清单是工作区的根目录，则会选择工作区默认成员，否则只会选择清单定义的包。

可以使用workspace.default-members输入根清单。如果未设置，虚拟工作区将包括所有工作区成员（相当于传递）--workspace)，非虚拟工作区将只包括根箱子本身。

-p spec...
--package spec...
Build only the specified packages. See cargo-pkgid(1) for the SPEC format. This flag may be specified multiple times and supports common Unix glob patterns like *, ? and []. However, to avoid your shell accidentally expanding glob patterns before Cargo handles them, you must use single quotes or double quotes around each pattern.
--workspace
Build all members in the workspace.
--all
Deprecated alias for --workspace.
--exclude SPEC...
Exclude the specified packages. Must be used in conjunction with the --workspace flag. This flag may be specified multiple times and supports common Unix glob patterns like *, ? and []. However, to avoid your shell accidentally expanding glob patterns before Cargo handles them, you must use single quotes or double quotes around each pattern.

Target Selection

当没有给出目标选择选项时，cargo build将生成所选包的所有二进制和库目标。如果有二进制文件，则跳过它们required-features这些都不见了。

传递目标选择标志将只生成指定的目标。

注意--bin, --example, --test和--bench标志还支持常见的Unix全局模式，如*, ?和[]但是，为了避免您的shell在Cargo处理glob模式之前意外地扩展glob模式，您必须在每个glob模式周围使用单引号或双引号。

--lib
Build the package's library.
--bin name...
Build the specified binary. This flag may be specified multiple times and supports common Unix glob patterns.
--bins
Build all binary targets.
--example name...
Build the specified example. This flag may be specified multiple times and supports common Unix glob patterns.
--examples
Build all example targets.
--test name...
Build the specified integration test. This flag may be specified multiple times and supports common Unix glob patterns.
--tests
Build all targets in test mode that have the test = true manifest flag set. By default this includes the library and binaries built as unittests, and integration tests. Be aware that this will also build any required dependencies, so the lib target may be built twice (once as a unittest, and once as a dependency for binaries, integration tests, etc.). Targets may be enabled or disabled by setting the test flag in the manifest settings for the target.
--bench name...
Build the specified benchmark. This flag may be specified multiple times and supports common Unix glob patterns.
--benches
Build all targets in benchmark mode that have the bench = true manifest flag set. By default this includes the library and binaries built as benchmarks, and bench targets. Be aware that this will also build any required dependencies, so the lib target may be built twice (once as a benchmark, and once as a dependency for binaries, benchmarks, etc.). Targets may be enabled or disabled by setting the bench flag in the manifest settings for the target.
--all-targets
Build all targets. This is equivalent to specifying --lib --bins --tests --benches --examples.

Feature Selection

功能标志允许您控制启用哪些功能。如果未提供任何功能选项，则default为每个选定的软件包激活该功能。

查看the features documentation更多细节。

--features features
Space or comma separated list of features to activate. Features of workspace members may be enabled with package-name/feature-name syntax. This flag may be specified multiple times, which enables all specified features.
--all-features
Activate all available features of all selected packages.
--no-default-features
Do not activate the default feature of the selected packages.

Compilation Options

--target triple
Build for the given architecture. The default is the host architecture. The general format of the triple is <arch><sub>-<vendor>-<sys>-<abi>. Run rustc --print target-list for a list of supported targets.

This may also be specified with the build.target config value.

Note that specifying this flag makes Cargo run in a different mode where the target artifacts are placed in a separate directory. See the build cache documentation for more details.

-r
--release
Build optimized artifacts with the release profile. See also the --profile option for choosing a specific profile by name.
--profile name
Build with the given profile. See the the reference for more details on profiles.
--ignore-rust-version
Build the target even if the selected Rust compiler is older than the required Rust version as configured in the project's rust-version field.

Output Options

--target-dir directory
Directory for all generated artifacts and intermediate files. May also be specified with the CARGO_TARGET_DIR environment variable, or the build.target-dir config value. Defaults to target in the root of the workspace.
--out-dir directory
Copy final artifacts to this directory.

This option is unstable and available only on the nightly channel and requires the -Z unstable-options flag to enable. See rust-lang/cargo#6790 for more information.

Display Options

-v
--verbose
Use verbose output. May be specified twice for "very verbose" output which includes extra output such as dependency warnings and build script output. May also be specified with the term.verbose config value.
-q
--quiet
Do not print cargo log messages. May also be specified with the term.quiet config value.
--color when
Control when colored output is used. Valid values:

  • auto (default): Automatically detect if color support is available on the terminal.
  • always: Always display colors.
  • never: Never display colors.

May also be specified with the term.color config value.

--message-format fmt
The output format for diagnostic messages. Can be specified multiple times and consists of comma-separated values. Valid values:

  • human (default): Display in a human-readable text format. Conflicts with short and json.
  • short: Emit shorter, human-readable text messages. Conflicts with human and json.
  • json: Emit JSON messages to stdout. See the reference for more details. Conflicts with human and short.
  • json-diagnostic-short: Ensure the rendered field of JSON messages contains the "short" rendering from rustc. Cannot be used with human or short.
  • json-diagnostic-rendered-ansi: Ensure the rendered field of JSON messages contains embedded ANSI color codes for respecting rustc's default color scheme. Cannot be used with human or short.
  • json-render-diagnostics: Instruct Cargo to not include rustc diagnostics in in JSON messages printed, but instead Cargo itself should render the JSON diagnostics coming from rustc. Cargo's own JSON diagnostics and others coming from rustc are still emitted. Cannot be used with human or short.
--build-plan
Outputs a series of JSON messages to stdout that indicate the commands to run the build.

This option is unstable and available only on the nightly channel and requires the -Z unstable-options flag to enable. See rust-lang/cargo#5579 for more information.

Manifest Options

--manifest-path path
Path to the Cargo.toml file. By default, Cargo searches for the Cargo.toml file in the current directory or any parent directory.
--frozen
--locked
Either of these flags requires that the Cargo.lock file is up-to-date. If the lock file is missing, or it needs to be updated, Cargo will exit with an error. The --frozen flag also prevents Cargo from attempting to access the network to determine if it is out-of-date.

These may be used in environments where you want to assert that the Cargo.lock file is up-to-date (such as a CI build) or want to avoid network access.

--offline
Prevents Cargo from accessing the network for any reason. Without this flag, Cargo will stop with an error if it needs to access the network and the network is not available. With this flag, Cargo will attempt to proceed without the network if possible.

Beware that this may result in different dependency resolution than online mode. Cargo will restrict itself to crates that are downloaded locally, even if there might be a newer version as indicated in the local copy of the index. See the cargo-fetch(1) command to download dependencies before going offline.

May also be specified with the net.offline config value.

Common Options

+toolchain
If Cargo has been installed with rustup, and the first argument to cargo begins with +, it will be interpreted as a rustup toolchain name (such as +stable or +nightly). See the rustup documentation for more information about how toolchain overrides work.
-h
--help
Prints help information.
-Z flag
Unstable (nightly-only) flags to Cargo. Run cargo -Z help for details.

Miscellaneous Options

-j N
--jobs N
Number of parallel jobs to run. May also be specified with the build.jobs config value. Defaults to the number of CPUs.
--future-incompat-report
Displays a future-incompat report for any future-incompatible warnings produced during execution of this command

See cargo-report(1)

ENVIRONMENT

查看the reference有关Cargo读取的环境变量的详细信息。

EXIT STATUS

  • 0：Cargo成功。
  • 101：Cargo未能完成。

EXAMPLES

  1. 构建本地包及其所有依赖项：

    Cargo建造

  2. 通过优化构建：

    Cargo建造——放行

SEE ALSO

cargo(1), cargo-rustc(1)