Crate git_cow 

Git worktrees cloned from a per-repository template checkout, sharing disk blocks until written. macOS clones whole directories with clonefile(2), Linux uses cp --reflink=always (FICLONE)

Structs

Options

What to share and how often to refresh the template from the checkout

Enums

Added

How add_or_plain made the worktree

Constants

DEFAULT_SHARE

Hidden directories that hold only build caches, so they are shared like any other ignored directory. Every other path with a hidden component is tool or agent config and stays out

Functions

add

Create wt by cloning template, refreshed to template_start and warmed from repo first. new_branch and commitish are git worktree add’s; on error nothing is left behind

add_or_plain

add_with, or git worktree add with the same wt, new_branch and commitish when cloning fails. A failed clone leaves nothing behind, so the plain add starts clean

add_with

add with your own Options

can_clone

Whether a file in src_dir clones into dst_dir: both on one volume that supports it. Probed with one small file, since filesystem names miss mount options like XFS without reflink

git

Runs git in dir and returns its trimmed stdout

remove_template

Remove template, its registration in repo, and the lock, stamp and staging files next to it. Call it only when no add or warm on this template can run: one waiting for the lock would get a deleted file, and the next caller a new one

warm

Refresh an existing template with the gitignored directories of src, a checkout or a worktree whose work merged. Shares the hidden directories in DEFAULT_SHARE

warm_with

warm with your own Options. It always warms, the interval only applies to add_with