Files
clawhdf5/scripts/check-nostd.sh
Omar Sobh 55959b4920
CI / test (push) Failing after 15s
ci: wire up CI, fix no_std build, fix stale package names in scripts
- Add .gitea/workflows/ci.yml running scripts/ci-test.sh (fmt, clippy,
  test, no_std check) on push/PR to main.
- Fix stale rustyhdf5-py/rustyhdf5-format package names in
  ci-test.sh/check-nostd.sh, which had been silently no-op'ing those
  checks (cargo warns but doesn't fail on an unknown --exclude/-p
  target).
- With those checks actually running, fix the real issues they surface:
  - clippy: useless_conversion in chunked_write.rs, byte_char_slices in
    global_heap.rs/object_header.rs.
  - cargo fmt: apply formatting across the workspace (whitespace only).
  - no_std (thumbv7em-none-eabihf) build errors in clawhdf5-format:
    core::sync::atomic::AtomicU64 doesn't exist on that target (no
    native 64-bit atomics) — switch profiling.rs's counters to
    portable-atomic, which falls back to a CAS-based emulation there
    and is a no-op wrapper elsewhere. Add missing alloc imports for
    Box (filters.rs), Vec (filters_szip.rs), and format! (dict_encoding.rs)
    on no_std paths. Replace f64::powi (std/libm-only) with a small
    local exponentiation-by-squaring helper in the scale-offset filter.
2026-08-05 10:50:13 -07:00

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#!/usr/bin/env bash
# CI check: verify clawhdf5-format compiles under no_std (thumbv7em-none-eabihf).
#
# Usage:
# ./scripts/check-nostd.sh
#
# Prerequisites:
# rustup target add thumbv7em-none-eabihf
set -euo pipefail
TARGET="thumbv7em-none-eabihf"
echo "==> Checking no_std build for clawhdf5-format (target: $TARGET)"
# Ensure the target is installed
if ! rustup target list --installed | grep -q "$TARGET"; then
echo "Installing target $TARGET ..."
rustup target add "$TARGET"
fi
# Build with no default features (no std, no flate2, no sha2)
cargo build --target "$TARGET" -p clawhdf5-format --no-default-features
echo "==> no_std build succeeded"
# Also verify the default-features (std) build still works
echo "==> Checking default-features build"
cargo build -p clawhdf5-format
echo "==> default-features build succeeded"
echo "==> All no_std checks passed"