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actions-rust/.gitea/actions/rust-cache/action.yml

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name: Rust Setup + Cache
description: Install Rust toolchain and cache cargo/rustup dependencies for Gitea Actions
author: eric
inputs:
toolchain:
description: Rust toolchain to install (e.g., stable, 1.75.0, nightly)
default: stable
required: false
outputs:
cache-hit:
description: "Whether a cache entry was found"
value: ${{ steps.cache.outputs.cache-hit }}
runs:
using: composite
steps:
# Gitea Actions does not have Cargo.lock by default (cargo generates it on first build),
# and hashFiles() globs don't work reliably here. Use shell hashing instead.
- name: Compute cache key
id: cache-key
shell: bash
run: |
# Hash both files; if Cargo.lock doesn't exist yet, only Cargo.toml is hashed
HASH=$(cat Cargo.toml Cargo.lock 2>/dev/null | sha256sum | cut -d' ' -f1)
echo "hash=$HASH" >> $GITHUB_OUTPUT
echo "fingerprint=$HASH" >> $GITHUB_ENV
- name: Cache cargo + rustup
id: cache
uses: https://gitea.com/actions/cache@v3
with:
path: |
~/.cargo/registry
~/.cargo/git
~/.rustup/toolchains
~/.rustup/settings.toml
target
key: rust-linux-${{ steps.cache-key.outputs.hash }}
restore-keys: rust-linux-
- name: Setup Rust
shell: bash
run: |
# If toolchain was cached, rustup will skip download — install still runs for metadata
curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs \
| sh -s -- -y --default-toolchain ${{ inputs.toolchain }}
# Add cargo bin to PATH for subsequent steps
echo "$HOME/.cargo/bin" >> $GITHUB_PATH
- name: Show cached sizes
shell: bash
run: |
echo "=== ~/.cargo ===" && du -sh ~/.cargo 2>/dev/null || echo "(empty)"
echo "=== ~/.rustup ===" && du -sh ~/.rustup 2>/dev/null || echo "(empty)"
echo "=== target ===" && du -sh target 2>/dev/null || echo "(empty)"