mirror of
https://github.com/cheat/cheat.git
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9b92261604
Replace docopt-go with spf13/cobra, giving cheat a built-in `--completion` flag that dynamically generates shell completions for bash, zsh, fish, and powershell. This replaces the manually-maintained static completion scripts and resolves the root cause of multiple completion issues (#768, #705, #633, #632, #476). Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
123 lines
3.5 KiB
Markdown
123 lines
3.5 KiB
Markdown
# CLAUDE.md
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This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.
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## Common Development Commands
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### Building
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```bash
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# Build for your architecture
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make build
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# Build release binaries for all platforms
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make build-release
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# Install cheat to your PATH
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make install
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```
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### Testing and Quality Checks
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```bash
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# Run all tests
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make test
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go test ./...
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# Run a single test
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go test -run TestFunctionName ./internal/package_name
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# Generate test coverage report
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make coverage
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# Run linter (revive)
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make lint
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# Run go vet
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make vet
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# Format code
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make fmt
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# Run all checks (vendor, fmt, lint, vet, test)
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make check
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```
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### Development Setup
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```bash
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# Install development dependencies (revive linter, scc)
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make setup
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# Update and verify vendored dependencies
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make vendor-update
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```
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## Architecture Overview
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The `cheat` command-line tool is organized into several key packages:
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### Command Layer (`cmd/cheat/`)
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- `main.go`: Entry point, cobra command definition, flag registration, command routing
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- `cmd_*.go`: Individual command implementations (view, edit, list, search, etc.)
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- `completions.go`: Dynamic shell completion functions for cheatsheet names, tags, and paths
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- Commands are routed via a `switch` block in the cobra `RunE` handler
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### Core Internal Packages
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1. **`internal/config`**: Configuration management
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- Loads YAML config from platform-specific paths
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- Manages editor, pager, colorization settings
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- Validates and expands cheatpath configurations
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2. **`internal/cheatpath`**: Cheatsheet path management
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- Represents collections of cheatsheets on filesystem
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- Handles read-only vs writable paths
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- Supports filtering and validation
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3. **`internal/sheet`**: Individual cheatsheet handling
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- Parses YAML frontmatter for tags and syntax
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- Implements syntax highlighting via Chroma
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- Provides search functionality within sheets
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4. **`internal/sheets`**: Collection operations
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- Loads sheets from multiple cheatpaths
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- Consolidates duplicates (local overrides global)
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- Filters by tags and sorts results
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5. **`internal/display`**: Output formatting
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- Writes to stdout or pager
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- Handles text formatting and indentation
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6. **`internal/installer`**: First-run installer
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- Prompts user for initial configuration choices
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- Generates default `conf.yml` and downloads community cheatsheets
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7. **`internal/repo`**: Git repository management
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- Clones community cheatsheet repositories
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- Updates existing repositories
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### Key Design Patterns
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- **Filesystem-based storage**: Cheatsheets are plain text files
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- **Override mechanism**: Local sheets override community sheets with same name
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- **Tag system**: Sheets can be categorized with tags in frontmatter
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- **Multiple cheatpaths**: Supports personal, community, and directory-scoped sheets
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- **Directory-scoped discovery**: Walks up from cwd to find the nearest `.cheat` directory (like `.git` discovery)
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### Sheet Format
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Cheatsheets are plain text files optionally prefixed with YAML frontmatter:
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```
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---
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syntax: bash
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tags: [ networking, ssh ]
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---
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# SSH tunneling example
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ssh -L 8080:localhost:80 user@remote
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```
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### Working with the Codebase
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- Always check for `.git` directories and skip them during filesystem walks
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- Use `go-git` for repository operations, not exec'ing git commands
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- Platform-specific paths are handled in `internal/config/paths.go`
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- Color output uses ANSI codes via the Chroma library
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- Test files use the `mocks` package for test data |