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name: Cache Rust dependencies
on:
push:
branches:
pull_request:
branches:
jobs:
build:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
# selecting a toolchain either by action or manual `rustup` calls should happen
# before the plugin, as the cache uses the current rustc version as its cache key
- run: rustup toolchain install stable --profile minimal
- uses: Swatinem/rust-cache@v2
with:
# A whitespace separated list of env-var *prefixes* who's value contributes
# to the environment cache key.
# The env-vars are matched by *prefix*, so the default `RUST` var will
# match all of `RUSTC`, `RUSTUP_*`, `RUSTFLAGS`, `RUSTDOC_*`, etc.
# default: "CARGO CC CFLAGS CXX CMAKE RUST"
env-vars: "RUSTFLAGS=-Dwarnings"
# The cargo workspaces and target directory configuration.
# These entries are separated by newlines and have the form
# `$workspace -> $target`. The `$target` part is treated as a directory
# relative to the `$workspace` and defaults to "target" if not explicitly given.
# default: ". -> target"
workspaces: "examples"
# Additional non workspace directories to be cached, separated by newlines.
cache-directories: ""
# Determines whether workspace `target` directories are cached.
# If `false`, only the cargo registry will be cached.
# default: "true"
cache-targets: "true"
# Determines if the cache should be saved even when the workflow has failed.
# default: "false"
cache-on-failure: "false"
# Determines which crates are cached.
# If `true` all crates will be cached, otherwise only dependent crates will be cached.
# Useful if additional crates are used for CI tooling.
# default: "false"
cache-all-crates: "false"
# Determines whether the cache should be saved.
# If `false`, the cache is only restored.
# Useful for jobs where the matrix is additive e.g. additional Cargo features,
# or when only runs from `master` should be saved to the cache.
# default: "true"
save-if: "true"
# Determines whether the cache should be restored.
# If `true` the cache key will be checked and the `cache-hit` output will be set
# but the cache itself won't be restored
# default: "false"
lookup-only: "false"
# Specifies what to use as the backend providing cache
# Can be set to either "github" or "buildjet"
# default: "github"
cache-provider: "github"
# Determines whether to cache the ~/.cargo/bin directory.
# default: "true"
cache-bin: "true"