cargo-log-parser
Parse and filter cargo build logs to extract errors, warnings, and diagnostics with regex-based filt
by matbeedotcom|Open Source
Cargo Log Parser
A Claude Code skill for parsing and filtering cargo build logs. Extract errors, warnings, and diagnostics with regex-based filtering by file path, message, or error code.
Installation
Method 1: Plugin Marketplace (Recommended for Claude Code)
# Add this repo as a marketplace
/plugin marketplace add YOUR_USERNAME/cargo-log-parser
# Install the plugin
/plugin install cargo-log-parser@cargo-log-parser-marketplace
Method 2: Direct Plugin Install
# Clone and install directly
git clone https://github.com/YOUR_USERNAME/cargo-log-parser.git
/plugin add ./cargo-log-parser
Method 3: Simple Skill (Manual)
# Clone to your skills directory
git clone https://github.com/YOUR_USERNAME/cargo-log-parser.git ~/.claude/skills/cargo-log-parser
Method 4: Project-Level Skill
# Add to your project's skills
git clone https://github.com/YOUR_USERNAME/cargo-log-parser.git .claude/skills/cargo-log-parser
Usage
Once installed, Claude automatically uses this skill when you're debugging Rust/cargo build errors.
CLI Examples
# Pipe from cargo build
cargo build 2>&1 | python scripts/cargo_log_parser.py --errors
# Filter by file pattern
cargo build 2>&1 | python scripts/cargo_log_parser.py --errors --file "tests/.*"
# Filter by error message
cargo build 2>&1 | python scripts/cargo_log_parser.py --message "cannot find"
# Filter by error code
cargo build 2>&1 | python scripts/cargo_log_parser.py --code "E0425"
# Compact stream output
cargo build 2>&1 | python scripts/cargo_log_parser.py --errors --stream
# JSON output for programmatic use
cargo build 2>&1 | python scripts/cargo_log_parser.py --errors --json
Key Flags
| Flag | Description |
|---|---|
-e, --errors | Show only errors |
-w, --warnings | Show only warnings |
-f, --file PATTERN | Filter by file path regex |
-m, --message PATTERN | Filter by message regex |
-c, --code PATTERN | Filter by error code regex |
--stream | Compact one-line output |
--raw | Raw log text only |
--json | JSON output |
--group-by-file | Group by source file |
--group-by-code | Group by error code |
Common Regex Patterns
| Pattern | Matches |
|---|---|
tests/.* | Test files |
src/.* | Source files |
.*/mod\.rs | Module files |
E03\d\d | Borrow checker errors |
E04\d\d | Name resolution errors |
unused_.* | Unused warnings |
Repository Structure
cargo-log-parser/
├── .claude-plugin/
│ ├── plugin.json # Plugin manifest
│ └── marketplace.json # Marketplace config
├── SKILL.md # Skill instructions
├── scripts/
│ └── cargo_log_parser.py # The parser tool
└── README.md
License
MIT