This consolidates Rust build process for various codecs into a single top-level image that is built once and reused.
This ensures that we use same version of tools across codecs (now controlled from a single place), simplifies build configs and commands, speeds up common builds and reduces disk space taken by Docker images by reusing same one.
Additionally, this PR renames all codecs to squoosh-* to work around the https://github.com/rustwasm/wasm-pack/issues/829 (which has been already fixed on master of wasm-pack but not released in a while), as well as adds `publish = false` to Cargo.toml to avoid accidental publishing for now.
I'm planning to do similar for Emscripten in a separate PR, although abilities to share configs there are much more limited due to lack of package manager in C++.
- Store Emscripten cache inside node_modules/.em_cache. Docker image ships without LTO libs, so Emscripten has to rebuild stdlibs on every build otherwise.
- Merge webp_enc + webp_dec build scripts. Core libwebp library is same in both cases, so there's no point in storing and building two copies of it.
* Add LTO for C++ builds
This didn't have much effect on fastcomp builds, but provides further size savings with new LLVM backend we switched to in #750 (and fixes the MozJPEG size regression from the same PR).
In the future we won't need to pass `--llvm-lto 1` explicitly, but latest Emscripten Docker image doesn't contain the Emscripten version with the necessary fixes for this.
* Delete build.log
Co-authored-by: Jake Archibald <jaffathecake@gmail.com>
We've been running each Make command in a single thread, resulting in fairly slow builds for C++ codecs.
This change instead runs all `make` invocations with `-j` defaulting to number of cores (retrieved via `nproc`).
On my machine Docker uses a VM configured to 4 cores out of 8 available. This change brings total build time for C++ codecs down from 10m28s to 7m5s (~3.5 minutes difference).
Note (1): I've converted imagequant builds to use built-in `make` as well to leverage this parallelisation and future-proof build script.
Note (2): we don't need to do the same for Rust, since Cargo parallelises builds by default.
Looks like we've been stuck on Emscripten fastcomp backend, misssing out on all new optimisations between LLVM 6 and LLVM 11 and going via slow asm.js pipeline when building.
This changes Docker images for Emscripten projects to point to emscripten-upstream instead and commits the updated artifacts.
