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sccache - Shared Compilation Cache

sccache is a ccache-like compiler caching tool. It is used as a compiler
wrapper and avoids compilation when possible, storing cached results
either on local disk or in one of several cloud storage backends.

sccache includes support for caching the compilation of Assembler, C/C++
code, Rust, as well as NVIDIA's CUDA using nvcc, and clang, AMD's ROCm
HIP.

sccache also provides icecream-style distributed compilation (automatic
packaging of local toolchains) for all supported compilers (including
Rust). The distributed compilation system includes several security
features that icecream lacks such as authentication, transport layer
encryption, and sandboxed compiler execution on build servers. See the
distributed quickstart guide for more information.

Running sccache is like running ccache: prefix your compilation commands
with it, like so:

  sccache gcc -o foo.o -c foo.c

If you want to use sccache for caching Rust builds you can define
build.rustc-wrapper in the cargo configuration file. For example, you
can set it globally in $HOME/.cargo/config.toml by adding:

  [build]
  rustc-wrapper = "/path/to/sccache"

Note that you need to use cargo 1.40 or newer for this to work.

Alternatively you can use the environment variable RUSTC_WRAPPER:

  export RUSTC_WRAPPER=/path/to/sccache
  cargo build

This requires: rust-opt

Maintained by: Alan Alberghini
Keywords: ccache,distributed compiler
ChangeLog: sccache