Local benchmarking showed that the implementation of SHA-512 in the *ring* crate
is 3x faster than the implementation of SHA-1 in the `sha1` crate. I've also
noticed that 80%+ of sccache's runtime on a fully cached build is spent hashing.
With this change I noticed a decrease from 108s to 92s when building a fully
cached LLVM from the network. Not a huge win but if the network were faster
could perhaps add up!
Closes#108
The S3 and Redis caches are optional during build time.
Enable feature "s3" and/or "redis" to build sccache with
support for those backends. Only the local disk cache
is available by default. The "all" feature enables both.
This patch is changing the current default behavior that
always has S3 support.
This cache module uses a Redis instance. To make sccache use this,
set SCCACHE_REDIS to redis://[:<passwd>@]<hostname>[:port][/<db>].
The maximum and current cache size is retrieved from the INFO and
CONFIG GET redis command.
I was sporadically receiving a segfault locally when trying to debug issues on
Windows and in tracking this down I discovered blackbeam/named_pipe#3 which
leads to segfaults locally on startup.
This switches the one use case to the relevant functionality in
`mio-named-pipes` (already pulled in as part of `tokio-process`) and then
otherwise mirrors the same logic as the Unix version, just waiting for a byte
with a timeout.
If none of the logging environment variables are supplied
sccache creates a sccache2.log file on every sccache
invocation. Means, in every directory where a compilation takes
place a logfile is left afterwards. In the happy case this file
is empty. This can be kind of messy for larger projects where
the compiler invocation is done from multiple directories.
This patch changes the logging initialization:
* SCCACHE2_LOG_LEVEL is renamed to SCCACHE_LOG_LEVEL
* sccache2.log is renamed to sccache.log
* If none of RUST_LOG or SCCACHE_LOG_LEVEL is set, no logging is initialized.
* If RUST_LOG is set, only env_logger is used - no logfile is created.
Taylor Cramer
Andre Parodi
Ted Mielczarek
Alex Crichton
Felix Obenhuber
Felix Obenhuber
Alex Newman
Yixi Zhang
Mike Hommey