# Project-wide cargo configuration.
#
# Routes every rustc invocation through `sccache` so cold rebuilds and
# fresh checkouts (CI, new dev box, after a `cargo clean`) replay
# previously-compiled crates from a local on-disk cache rather than
# recompiling them. Warm incremental builds still go through cargo's
# own `target/` cache, which dominates locally — sccache buys you the
# big wins on cold paths.
#
# Requires sccache on PATH. Install it once per machine:
#
#   Arch     :  pacman -S sccache
#   macOS    :  brew install sccache
#   Cargo    :  cargo install sccache --locked
#
# Without sccache the build fails with "rustc-wrapper not found". To
# bypass this config without editing the file, prepend
# `RUSTC_WRAPPER= ` (empty value) to your cargo command:
#
#   RUSTC_WRAPPER= cargo build
#
[build]
rustc-wrapper = "sccache"

# Project-local cache so the shared dev box (or a Docker volume) keeps
# the artefacts isolated per checkout instead of mixing them in
# `~/.cache/sccache`. Set with `force = false` so a developer-set
# `SCCACHE_DIR` in their shell wins — important because the sccache
# daemon, once started, sticks with whichever directory it saw first.
[env]
SCCACHE_DIR = { value = ".sccache-cache", relative = true, force = false }