CARGO-UPDATE(1) General Commands Manual CARGO-UPDATE(1)
NAME
cargo-update - Update dependencies as recorded in the local lock file
SYNOPSIS
cargo update [options]
DESCRIPTION
This command will update dependencies in the Cargo.lock file to the
latest version. If the Cargo.lock file does not exist, it will be
created with the latest available versions.
OPTIONS
Update Options
-p spec..., --package spec...
Update only the specified packages. This flag may be specified
multiple times. See cargo-pkgid(1) for the SPEC format.
If packages are specified with the -p flag, then a conservative
update of the lockfile will be performed. This means that only the
dependency specified by SPEC will be updated. Its transitive
dependencies will be updated only if SPEC cannot be updated without
updating dependencies. All other dependencies will remain locked at
their currently recorded versions.
If -p is not specified, all dependencies are updated.
--aggressive
When used with -p, dependencies of spec are forced to update as
well. Cannot be used with --precise.
--precise precise
When used with -p, allows you to specify a specific version number
to set the package to. If the package comes from a git repository,
this can be a git revision (such as a SHA hash or tag).
-w, --workspace
Attempt to update only packages defined in the workspace. Other
packages are updated only if they don't already exist in the
lockfile. This option is useful for updating Cargo.lock after
you've changed version numbers in Cargo.toml.
--dry-run
Displays what would be updated, but doesn't actually write the
lockfile.
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
<https://doc.rust-lang.org/cargo/reference/config.html>.
-q, --quiet
Do not print cargo log messages. May also be specified with the
term.quiet config value
<https://doc.rust-lang.org/cargo/reference/config.html>.
--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
<https://doc.rust-lang.org/cargo/reference/config.html>.
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
<https://doc.rust-lang.org/cargo/reference/config.html>.
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
<https://rust-lang.github.io/rustup/overrides.html> for more
information about how toolchain overrides work.
--config KEY=VALUE or PATH
Overrides a Cargo configuration value. The argument should be in
TOML syntax of KEY=VALUE, or provided as a path to an extra
configuration file. This flag may be specified multiple times. See
the command-line overrides section
<https://doc.rust-lang.org/cargo/reference/config.html#command-line-overrides>
for more information.
-h, --help
Prints help information.
-Z flag
Unstable (nightly-only) flags to Cargo. Run cargo -Z help for
details.
ENVIRONMENT
See the reference
<https://doc.rust-lang.org/cargo/reference/environment-variables.html>
for details on environment variables that Cargo reads.
EXIT STATUS
• 0: Cargo succeeded.
• 101: Cargo failed to complete.
EXAMPLES
1. Update all dependencies in the lockfile:
cargo update
2. Update only specific dependencies:
cargo update -p foo -p bar
3. Set a specific dependency to a specific version:
cargo update -p foo --precise 1.2.3
SEE ALSO
cargo(1), cargo-generate-lockfile(1)
CARGO-UPDATE(1)
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