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ci: Switch to Swatinem/rust-cache@v2 (#1113)

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Fixed #1038

sccache is not very effective at caching dependencies, the external
C/C++ is recompiled in every ci and it takes a lot of time.

Compilation of other Rust dependencies also takes quite some time and
sccache is not helping at all, so I decided to switch to
`Swatinem/rust-cache@v2`.

The downside of the new caching method is that a new cache conntaining
part of the `.cargo/` and `target/` will be created whenver
`Cargo.lock`/`Cargo.toml` changes, but it can still reuse the old cache
to create new caching.

This is acceptable given that `sccache` often fails to reuse
cache due to rate limiting from GHA, since it is not designed for use
like a s3 object pool, and `sccache` will create a lot of new cache
artifacts for a given branch that cannot be reused in main and would
have to cleanup via a cronjob.

Edit:

rust 1.70 uses llvm 16.0, however ubuntu-latest still uses llvm 15.0
As such, during release-build, cross-lang-lto failed due to llvm is too
old.

Temporarily disable linker-plugin-lto to fix this.

Signed-off-by: Jiahao XU <Jiahao_XU@outlook.com>
This commit is contained in:
Jiahao XU 2023-06-02 14:03:29 +10:00 • committed by GitHub
parent 9ecfce4104
commit b69c082160
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 22 additions and 55 deletions
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@ -128,10 +128,12 @@ rustc-icf := if for-release != "" {
# Only enable linker-plugin-lto for release
# Also disable this on windows since it uses msvc.
#
# Temporarily disable this on linux due to mismatch llvm version
# } else if target-os == "linux" {
# "-C linker-plugin-lto "
linker-plugin-lto := if for-release == "" {
""
} else if target-os == "linux" {
"-C linker-plugin-lto "
} else {
""
}
@ -169,7 +171,10 @@ toolchain components="":
{{ if target != "" { "rustup target add " + target } else { "" } }}
print-env:
echo "env RUSTFLAGS='$RUSTFLAGS', CARGO='$CARGO'"
@echo "env RUSTFLAGS='$RUSTFLAGS', CARGO='$CARGO'"
print-rustflags:
@echo "$RUSTFLAGS"
build: print-env
{{cargo-bin}} build {{cargo-build-args}}