Kyle Isom
525c3f0b4f
Client orchestrates the two-step push/pull protocol: manifest exchange followed by chunked blob streaming. Push detects server-newer (returns ErrServerNewer) and up-to-date states. Pull computes missing blobs locally and streams only what's needed. Prune delegates to server RPC. 6 integration tests via in-process bufconn server. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
sgard — Shimmering Clarity Gardener
A dotfiles manager that checkpoints files into a portable repository and restores them on demand.
The repository is a single directory that can live anywhere — local disk, USB drive, NFS mount — making it portable between machines.
Installation
Homebrew:
brew tap kisom/homebrew-tap
brew install sgard
From source:
git clone https://github.com/kisom/sgard && cd sgard
go build -o sgard ./cmd/sgard
Or install into $GOBIN:
go install github.com/kisom/sgard/cmd/sgard@latest
NixOS (flake):
nix profile install github:kisom/sgard
Or add to your flake inputs and include sgard.packages.${system}.default
in your packages.
Binaries are also available on the releases page.
Quick start
# Initialize a repo (default: ~/.sgard)
sgard init
# Track some dotfiles
sgard add ~/.bashrc ~/.gitconfig ~/.ssh/config
# Checkpoint current state
sgard checkpoint -m "initial"
# Check what's changed
sgard status
# Restore from the repo
sgard restore
Use --repo to put the repository somewhere else, like a USB drive:
sgard init --repo /mnt/usb/dotfiles
sgard add ~/.bashrc --repo /mnt/usb/dotfiles
sgard restore --repo /mnt/usb/dotfiles
Commands
| Command | Description |
|---|---|
init |
Create a new repository |
add <path>... |
Track files, directories, or symlinks |
remove <path>... |
Stop tracking files |
checkpoint [-m msg] |
Re-hash tracked files and update the manifest |
restore [path...] [-f] |
Restore files to their original locations |
status |
Show which tracked files have changed |
diff <path> |
Show content diff between stored and current file |
list |
List all tracked files |
verify |
Check blob store integrity against manifest hashes |
version |
Print the version |
How it works
sgard stores files in a content-addressable blob store keyed by SHA-256. A YAML manifest tracks each file's original path, hash, type, permissions, and timestamp.
~/.sgard/
manifest.yaml # human-readable manifest
blobs/
a1/b2/a1b2c3d4... # file contents stored by hash
On restore, sgard compares the manifest timestamp against the file's
mtime. If the manifest is newer, the file is restored without prompting.
Otherwise, sgard asks for confirmation (--force skips the prompt).
Paths under $HOME are stored as ~/... in the manifest, making it
portable across machines with different usernames.
See ARCHITECTURE.md for full design details.