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fix(ci): persist all cargo-llvm-cov env vars for E2E coverage (#559)

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* fix(ci): persist all cargo-llvm-cov env vars for E2E coverage

Newer cargo-llvm-cov versions output CARGO_ENCODED_RUSTFLAGS instead of
RUSTFLAGS from show-env. The workflow was cherry-picking specific vars
(RUSTFLAGS, LLVM_PROFILE_FILE, etc.) to persist to $GITHUB_ENV, so
CARGO_ENCODED_RUSTFLAGS was never set during the build step, producing a
non-instrumented binary and zero .profraw files.

Replace the manual echo lines with `cargo llvm-cov show-env >> $GITHUB_ENV`
to forward all vars (including CARGO_ENCODED_RUSTFLAGS, CARGO_INCREMENTAL,
etc.) regardless of cargo-llvm-cov version.

Also forward CARGO_ENCODED_RUSTFLAGS in the E2E conftest subprocess env.

[skip-regression-check]

Co-Authored-By: Claude Opus 4.6 <[email protected]>

* fix(ci): address PR review — prefix-based env forwarding, split clean step

- conftest.py: replace explicit env var list with prefix-based matching
  (CARGO_LLVM_COV*, LLVM_*) plus specific vars (CARGO_ENCODED_RUSTFLAGS,
  CARGO_INCREMENTAL) to stay resilient to cargo-llvm-cov changes.
- coverage.yml: move `cargo llvm-cov clean` to its own step so the env
  vars from show-env (persisted via $GITHUB_ENV) are active when clean runs.

[skip-regression-check]

Co-Authored-By: Claude Opus 4.6 <[email protected]>

---------

Co-authored-by: Claude Opus 4.6 <[email protected]>
This commit is contained in:
Illia Polosukhin
2026-03-05 01:44:03 +00:00
committed by GitHub
co-authored by Claude Opus 4.6
parent 3615967f92
commit a1f0208956
2 changed files with 13 additions and 13 deletions
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.github/workflows/coverage.yml
+7 -8
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@@ -102,14 +102,13 @@ jobs:
- name: Set up coverage instrumentation
run: |
source <(cargo llvm-cov show-env --export-prefix)
# Persist env vars for subsequent steps
echo "RUSTFLAGS=${RUSTFLAGS}" >> "$GITHUB_ENV"
echo "LLVM_PROFILE_FILE=${LLVM_PROFILE_FILE}" >> "$GITHUB_ENV"
echo "CARGO_LLVM_COV=1" >> "$GITHUB_ENV"
echo "CARGO_LLVM_COV_SHOW_ENV=1" >> "$GITHUB_ENV"
echo "CARGO_LLVM_COV_TARGET_DIR=${CARGO_LLVM_COV_TARGET_DIR}" >> "$GITHUB_ENV"
cargo llvm-cov clean --workspace
# Append ALL env vars from show-env (including CARGO_ENCODED_RUSTFLAGS,
# CARGO_INCREMENTAL, LLVM_PROFILE_FILE, etc.) so the build step
# compiles an instrumented binary regardless of cargo-llvm-cov version.
cargo llvm-cov show-env >> "$GITHUB_ENV"
- name: Clean coverage workspace
run: cargo llvm-cov clean --workspace
- name: Build instrumented binary
run: cargo build --no-default-features --features libsql