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ci: drop apt and sccache from the setup action, and key the native cache on the image #82

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Merged
rubas-agent merged 3 commits into from
Oct 23, 2026
Merged

ci: drop apt and sccache from the setup action, and key the native cache on the image #82

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04cfee9
ci: drop the apt step from the setup action, the runner image has the…
rubas Oct 23, 2026
abbd553
ci: key the native build cache on the runner image
rubas Oct 23, 2026
54bf18e
ci: drop sccache; its GitHub cache backend failed the build with a 503
rubas Oct 23, 2026
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32 changes: 12 additions & 20 deletions .github/actions/setup/action.yml
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Original file line number Diff line number Diff line change
@@ -1,5 +1,5 @@
name: "Setup whisper_cpp build env"
description: "System packages, Task, Elixir/OTP, Rust toolchain, sccache, and the mix/cargo/native caches."
description: "Task, Elixir/OTP, Rust toolchain, and the mix/cargo/native caches."

inputs:
elixir-version:
Expand All @@ -23,12 +23,8 @@ inputs:
runs:
using: "composite"
steps:
- name: Install system packages
shell: bash
run: |
sudo apt-get update -qq
sudo apt-get install -y -qq cmake build-essential pkg-config libclang-dev

# No apt step: the GitHub-hosted Ubuntu image has cmake, gcc, make, pkg-config, and libclang. An apt step only adds
# the Ubuntu mirror, which took 17 to 20 minutes on the ubuntu-26.04 image on 2026-10-23.
- name: Install Task
uses: go-task/setup-task@a00fbb05ce67b35648be3c78cbc9fd85354c757e # v2.2.0
with:
Expand All @@ -48,17 +44,6 @@ runs:
toolchain: ${{ inputs.rust-toolchain }}
components: ${{ inputs.rust-components }}

- name: Install sccache
uses: mozilla-actions/sccache-action@fc920bf0ec8de6ee65d409111f7ec508035751ba # v0.0.11

- name: Enable sccache wrapping
shell: bash
run: |
echo "SCCACHE_GHA_ENABLED=true" >> "$GITHUB_ENV"
echo "RUSTC_WRAPPER=sccache" >> "$GITHUB_ENV"
echo "CC=sccache cc" >> "$GITHUB_ENV"
echo "CXX=sccache c++" >> "$GITHUB_ENV"

- name: Cache Elixir build + deps
uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
with:
Expand All @@ -79,14 +64,21 @@ runs:
restore-keys: |
${{ runner.os }}-cargo-${{ inputs.rust-toolchain }}-

# bindgen tells cargo to rebuild whisper-rs-sys when a system header changes. A target from another Ubuntu
# release names headers that are missing or newer here, so each run rebuilds whisper.cpp and saves nothing.
- name: Read the runner image
id: image
shell: bash
run: echo "os=$ImageOS" >> "$GITHUB_OUTPUT"

- name: Cache native build artifacts (Cargo target + CMake)
uses: actions/cache@55cc8345863c7cc4c66a329aec7e433d2d1c52a9 # v6.1.0
with:
path: |
native/whisper_cpp_native/target
key: ${{ runner.os }}-native-${{ inputs.rust-toolchain }}-${{ hashFiles('native/whisper_cpp_native/Cargo.lock') }}
key: ${{ steps.image.outputs.os }}-native-${{ inputs.rust-toolchain }}-${{ hashFiles('native/whisper_cpp_native/Cargo.lock') }}
restore-keys: |
${{ runner.os }}-native-${{ inputs.rust-toolchain }}-
${{ steps.image.outputs.os }}-native-${{ inputs.rust-toolchain }}-

- name: Cache integration fixtures (models)
if: ${{ inputs.cache-fixtures == 'true' }}
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