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anki/tools/coverage/coverage-rust
llama 65274b2a4e chore(ci): use prebuilt binaries for cargo-llvm-cov and cargo-nextest (#5141)
## Linked issue (required)

Refs #5134

## Summary / motivation (required)

When running ci, instead of manually compiling cargo-llvm-cov and
cargo-nextest when not cached, this pr pulls them in as prebuilt
binaries instead

## Steps to reproduce (required, use N/A if not applicable)

N/A

## How to test (required)

CI should pass, and running `./check` and `just test --coverage` should
work locally too

### Checklist (minimum)

- [x] I ran `./ninja check` or an equivalent relevant check locally.
- [ ] I added or updated tests when the change is non-trivial or
behavior changed.

### Details

Continuing from
https://github.com/ankitects/anki/issues/5134#issuecomment-4936603431,
we can avoid installing the crates globally when run locally, but in ci
it doesn't really matter so we can use install-action as per normal.
W.r.t nextest's features, all `default-no-update` does is remove its
ability to self-update. Since we're puling in prebuilt binaries during
ci there's no difference

I've left out n2 for now, as without a release workflow on its repo or
on anki's fork, we'd still have to compile it ourselves (caching it can
be unsafe, but it sort of is already cached by setup-rust-toolchain?)

## Scope

- [x] This PR is focused on one change (no unrelated edits).
2026-07-15 16:06:13 +03:00

27 lines
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#!/bin/bash
set -e
html="$1"
outdir="out/coverage/rust"
LLVMCOVPATH="out/bin"
mkdir -p $outdir $LLVMCOVPATH
if [[ "${CI:-}" == "true" ]]; then
# prebuilt binary shouldve been installed
cargo_cmd="cargo"
else
cargo_cmd="$LLVMCOVPATH/cargo-llvm-cov"
test -x "$cargo_cmd" || cargo install cargo-llvm-cov --version 0.8.4 --locked --root out
fi
ANKI_TEST_MODE=1 "$cargo_cmd" llvm-cov --workspace --locked --json --summary-only \
--output-path $outdir/coverage-summary.json --fail-under-lines 64
if [ "$html" = "--html" ]; then
ANKI_TEST_MODE=1 "$cargo_cmd" llvm-cov report --html --output-dir $outdir
echo "Rust coverage report: $outdir/html/index.html"
fi