The arm64 build cross-compiled with the Rust target triple inside an
amd64 container and copied the binary out, deliberately avoiding Docker
emulation because arm64 emulation is unreliable on some BuildKit
instances.
A dedicated Ubuntu VM on an M4 Mac Mini is now available under the
ubuntu-arm64 label. Each matrix entry carries its own runner label and a
native flag, so builds can be moved between runners or between build
modes without changing the workflow structure.
Where native is set, the build-native action compiles on the host and
assembles the artefact tree, leaving Docker to package it. It builds
into a target directory outside the per-run workspace so cargo can reuse
artefacts between runs. The Dockerfile's ARTIFACTS argument selects
whether artefacts come from the builder stage or from out/ in the build
context; prepper and the final image are unchanged. Libraries are
resolved where the binary was linked, so arm64 images carry Ubuntu's
rather than Debian's.
Architecture flags are split into TARGET_MARCH, which feeds -march for
the C and C++ compilers, and TARGET_RUSTFLAGS, which is appended to
RUSTFLAGS. amd64 passes haswell to both as before; arm64 passes +crc,
which rustc does not enable by default. TARGET_CPU still drives the tag
and artefact suffix.
Replace local detect-runner-os action with external detect-versions@v1 to
reduce custom action maintenance. Add architecture detection for future
cross-platform support and namespace all cache keys with "continuwuity-"
prefix to prevent collisions with other projects on shared runners.
Updates cache mount IDs in Dockerfiles to match the new namespacing
convention, ensuring consistent cache isolation across CI and Docker builds.
The workflow was rebuilding dependencies unnecessarily despite timelord
restoring timestamps because TARGET_CPU and RUST_PROFILE weren't passed
to Docker, creating inconsistent cache keys. Now passes both arguments
for proper cache reuse.
Adds Haswell-optimised builds alongside baseline builds using -march=haswell
for PCLMUL instruction support. Recent build improvements reducing compile
times from 15-20 minutes to ~5 minutes make this additional CPU variant
feasible. Users can pull optimised images with -haswell suffix.
Updates the timelord action to fall back to git-warp-time when the cache
is completely empty, enabling timestamp restoration even on fresh builds.
When git-warp-time is used, performs an unshallow fetch to get full history,
while subsequent runs use normal fetches. Simplifies the interface by making
inputs optional with sensible defaults.
Adds binary caching for timelord-cli and git-warp-time tools to avoid
repeated installations, and updates paths to use /usr/share/rust/.cargo/bin/
for the catthehacker runner image used by the dind profile (may need updating
if/when switching to standard image).
The main timelord restore now happens inside the Dockerfile itself, as Docker
intentionally wipes all file mtimes on COPY/ADD operations.
Container failed to start when running as non-root (user 1000:1000) because
copied directories had restrictive 770 permissions, likely due to different
umask in persistent BuildKit. Non-root users couldn't access /usr/lib to
load required dynamic libraries.
Introduces prepper stage using Ubuntu to organize files into layered structure
with explicit 755 directory permissions before copying to scratch image.
Also fixes workflow syntax error and removes docker/** from paths-ignore to
ensure Docker changes trigger CI builds.
Morgan