drawer/CLAUDE.md

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project

drawer is a Rust project (edition 2024). Entry point is src/main.rs.

Dependencies

• tar — reading and writing tarballs in memory
• flate2 — gzip compression, paired with tar
• age — encryption/decryption using SSH keys (RSA or Ed25519) loaded from disk
• clap — command line argument parsing (derive API), used for subcommands and flags
• ssh-key — generating new Ed25519 SSH keys
• rand — OsRng entropy source for key generation

drawer is a command line tool for managing projects.

A drawer is a single directory with related files for a project. Drawer files always end in the .drawer extension, like foo.drawer. To create a drawer file from a directory, the contents are tarred, gzip-compressed, and encrypted in memory before being written to disk. To open a drawer file, it is decrypted and the tarball is expanded into a directory.

The drawer tool has three subcommands. open and close require a key (an SSH private key), the path to which can be given by either the $DRAWER_KEY environment variable or -i.

open

Decrypt and expand a drawer file into a directory. Takes a drawer file (required) and a target path (optional, defaults to a directory named after the drawer file stem). Prints a message when the target path is inferred. Fails if the target exists and is non-empty, unless -f is passed.

close

Compress and encrypt a directory into a drawer file. Takes a drawer file (required) and a source directory (optional, defaults to the directory named after the drawer file stem). Prints a message when the source path is inferred. Fails if the drawer file would be written inside the source directory.

key

Generate a new Ed25519 SSH key and write it to a file. Takes a filename (required). Fails if the file already exists or the parent directory does not exist.

Examples:

• drawer close -i ~/.keys/mykey ~/Documents/blah.drawer ~/Documents/blah — create ~/Documents/blah.drawer from ~/Documents/blah
• drawer close -i ~/.keys/mykey ~/Documents/blah.drawer — same, inferring source directory from drawer name
• drawer open ~/Documents/blah.drawer — open into ./blah using $DRAWER_KEY
• drawer key ~/.keys/mykey — generate a new SSH key at ~/.keys/mykey

Implementation plan

The implementation of this project will happen in several phases. Claude will do the primary coding for each phase, then the user (me) will review the code, write tests, and possibly make changes, before proceeding with the next phase.

At to time should Claude delete or modify any tests whatsoever.

The implementation plans for each phase are in markdown files under the plans/ directory. Claude should read these but should not modify them.

Commands

cargo build          # compile
cargo run            # build and run
cargo test           # run all tests
cargo test <name>    # run a single test by name
cargo clippy         # lint
cargo fmt            # format