Cargo / Add Dependency No Default Features
Add Dependency No Default Features
Includes a dependency without its default features in Cargo.toml.
cargo add <dependency> --no-default-features cargo add <dependency> --no-default-features #!/bin/bash
# Add Dependency No Default Features
cargo add {{dependency}} --no-default-features import subprocess
# Add Dependency No Default Features
# Make sure to replace <placeholders> with actual values
def run_command():
cmd = [
"cargo",
"add",
"<dependency>",
"--no-default-features"
]
try:
print(f"Executing: {' '.join(cmd)}")
subprocess.run(cmd, check=True)
except subprocess.CalledProcessError as e:
print(f"Error: {e}")
except FileNotFoundError:
print("Error: cargo not found. Please install it first.")
if __name__ == "__main__":
run_command() When To Use
When requiring only a subset of functionality from a dependency to minimize footprint.
Pro Tip
Use `--features` to manually include only the required features for precision and efficiency.
Terminal Output
Expected runtime feedback
$ cargo add serde --no-default-features
Updating crates.io index
\ Updating serde v1.0.130 -> v1.0.130
Adding dependency to Cargo.toml
```
[dependencies]
serde = { version = "1.0.130", default-features = false }
``` Anatomy of Output
Understanding the result
Added 'futures' v3.0.0 without default features. Dependency Added Confirms successful addition without default features.
Updated Cargo.toml reflecting changes. Cargo.toml Updated Indicates the modifications made.
Compiling futures v3.0.0... Compilation Process Shows the status of ongoing dependency compilation.
Power User Variants
Optimized versions
cargo add futures --no-default-features Add futures without any default functionality.
cargo add futures --no-default-features --features feature_a Include specific features while excluding defaults.
Troubleshooting
Common pitfalls
error: 'futures' has no features available.
Solution: Check for available features in the documentation.
error: package not found in `Cargo.toml`.
Solution: Ensure the dependency is correctly specified.
error: failed to compile 'futures'.
Solution: Refer to compilation logs for specifics.
Command Breakdown
What each part is doing
-
cargo - Base Command
- The executable that performs this operation. Here it runs Cargo before the shell applies any redirect operators.
-
<dependency> - dependency
- The value supplied for dependency.
-
--no-default-features - Command Option
- Tool-specific option used by this command invocation.
How To Run
Execution path
- Step 1
Run the command: `cargo add serde --no-default-features`
- Step 2
Check `Cargo.toml` to verify the dependency was added correctly.
Alternative Approaches
Comparable commands in other tools
Alternative package management tools for the same job.