test-local-twoliter

Testing & Quality

Build and test local changes to twoliter before releasing

QUICK START

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Source SKILL.md: https://github.com/majiayu000/claude-skill-registry/blob/HEAD/skills/development/test-local-twoliter-cbgbt-bottlerocket-forest/SKILL.md

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Skill: Test Local Twoliter Changes

Purpose

Build twoliter from local source and configure kits to use the locally-built binary for testing changes before release.

When to Use

Making changes to twoliter source code
Testing twoliter modifications before creating a PR
Debugging twoliter behavior
Validating fixes to twoliter

Prerequisites

Twoliter repository cloned in the forest
Rust toolchain installed
At least one kit repository to test with

Procedure

1. Make changes to twoliter source

Edit files in twoliter/twoliter/src/ or twoliter/twoliter/embedded/.

2. Build twoliter

cd twoliter
cargo build --release

The binary will be at target/release/twoliter.

3. Test the changes

Override TWOLITER_DIR to point to your local build directory:

cd kits/bottlerocket-core-kit
make build TWOLITER_DIR=$FOREST_ROOT/twoliter/target/release

4. Iterate

After making more changes:

# Rebuild twoliter
cd $FOREST_ROOT/twoliter
cargo build --release

# Test again
cd kits/bottlerocket-core-kit
make build TWOLITER_DIR=$FOREST_ROOT/twoliter/target/release

Validation

Verify the local twoliter is being used by checking the path:

cd kits/bottlerocket-core-kit
make build TWOLITER_DIR=$FOREST_ROOT/twoliter/target/release 2>&1 | head -5

You should see your modified twoliter being invoked.

Common Issues

Changes not taking effect:

Ensure you ran cargo build --release after making changes
Verify the path in TWOLITER_DIR is correct
Check that the binary exists: ls -lh $FOREST_ROOT/twoliter/target/release/twoliter

Build errors in twoliter:

Run cargo check to see detailed error messages
Run cargo clippy to catch common issues
Run cargo test to verify tests pass

Kit build fails with local twoliter:

Check twoliter output for error messages
Add --log-level debug by modifying the Makefile temporarily or using the twoliter binary directly

Reverting to Released Version

To go back to using the released version, simply omit the TWOLITER_DIR override:

cd kits/bottlerocket-core-kit
make build

This uses the default tools/twoliter/twoliter from the released version.

Related Skills

update-twoliter - For updating to a new released version after testing

Notes

No file modifications needed - use TWOLITER_DIR override on command line
This is for local testing only
For variant builds, you may need to update bottlerocket/Makefile.toml similarly
The prep target will still download the official version to tools/twoliter/, but your override takes precedence