Every path-gated workflow begins with one small job -- `does this change touch
it`, or `which workspaces this change touches` for the standards build -- that
all of its real jobs declare in `needs`. All 55 of those gate jobs ran on
`linux-arm64`.
That is the one label the fleet cannot spare. Sampled while 267 runs were
queued, every waiting run had the same shape:
[waiting] linux-arm64 does this change touch it
[blocked] linux member · dataflow device, simulated
[blocked] macos member · dataflow device absent
237 runs, each holding a gate in the longest queue, and every real job blocked
behind it. Not only `linux` jobs: `macos`, `linux-hw`, `linux-arm64-hw` and
`macos-m3-ultra` jobs were blocked too. The measured effect was `linux-arm64`
263 deep against `linux` **zero**, with jetson-hub's 20 cores taking no job for
a full hour -- starved not for want of work but because the work could not be
unblocked. A gate waiting on the resource it is rationing is head-of-line
blocking, and it makes every other runner in the fleet idle on its behalf.
The gates move to `linux`. Nothing else changes: the diff is 55 `runs-on` lines
and no others, and every touched file still parses.
Why `linux` and not elsewhere. The gate is not free -- it compares
`BASE...HEAD`, which needs the merge base, so `fetch-depth: 0` is a full clone
rather than a ten-second script. `macos` is served by hosts on a Mac Studio
sitting at load 185; `linux` is a separate 20-core box that was measurably
empty. This moves a serialisation point to the least contended label; it does
not remove it, and the gate is still a single point of failure for its
workflow. The structural fix is an early-exit first step inside each job, which
costs one checkout per leg and is a larger change.
Follow-up, deliberately not bundled: jetson-hub runs at capacity 2 with 15 GB of
RAM, so 55 clones still serialise two at a time. Raising capacity helps gates
and hurts the heavy emulated-architecture jobs that share the label, so it wants
measuring on its own.
Co-Authored-By: Claude Opus 5 <[email protected]>
170 lines
7.7 KiB
YAML
170 lines
7.7 KiB
YAML
name: wai-quantum docs, course and locales
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# The WAI Quantum documentation, the circuits course and the translations:
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# - docs: wai/tools/quantum-docs/ci.sh builds the command line, the job service and
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# the Python package from this checkout, starts a service, and runs check_docs.py
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# over every page docs.json names (the READMEs and docs pages of the engine, the
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# command line, the service, Python, the Studio, the desktop app, the editors and
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# the providers, the course's lessons, the agent skill, and their translations):
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# every block marked runnable run, every shown output held to the real one, every
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# receipt a block writes verified, the Rust blocks built and run, every block that
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# cannot run checked for the commands and flags it names, every `wai-quantum …` in
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# the prose a real command, every relative link a file, every dependency shown one
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# this repository's version satisfies, and every translation holding its English
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# page's code;
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# - course: engine::course's tests (every lesson's solution passes its own exercise
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# by proof or evidence, every known wrong answer fails it for its stated reason,
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# no hint or lesson gives the solution, every locale has every text and message)
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# and the command line's course and locale tests, each required by name;
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# - locales: every key of the Studio's words in every locale, with the same
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# placeholders, each translation marked machine-assisted (no browser).
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# The Studio's course in the browser, in both languages, is in wai-quantum-studio.yml.
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concurrency:
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group: ${{ github.workflow }}-${{ github.ref }}
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cancel-in-progress: true
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on:
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push:
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branches: [main]
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paths:
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- 'wai/wai-quantum/**'
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- 'wai/wai-quantum-cli/**'
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- 'wai/wai-quantum-service/**'
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- 'wai/wai-quantum-py/**'
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- 'wai/wai-quantum-qpu/**'
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- 'wai/wai-quantum-desktop/README.md'
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- 'wai/quantum-studio/**'
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- 'wai/tools/wai-quantum-editor/README.md'
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- 'wai/tools/quantum-docs/**'
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- 'wai/CHANGELOG.md'
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- 'rust-toolchain.toml'
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- '.github/workflows/wai-quantum-docs.yml'
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pull_request:
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paths:
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- 'wai/wai-quantum/**'
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- 'wai/wai-quantum-cli/**'
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- 'wai/wai-quantum-service/**'
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- 'wai/wai-quantum-py/**'
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- 'wai/wai-quantum-qpu/**'
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- 'wai/wai-quantum-desktop/README.md'
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- 'wai/quantum-studio/**'
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- 'wai/tools/wai-quantum-editor/README.md'
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- 'wai/tools/quantum-docs/**'
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- 'wai/CHANGELOG.md'
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- 'rust-toolchain.toml'
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- '.github/workflows/wai-quantum-docs.yml'
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jobs:
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relevant:
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name: does this change touch it
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runs-on: linux
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outputs:
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run: ${{ steps.gate.outputs.run }}
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steps:
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- uses: actions/checkout@v5
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with:
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fetch-depth: 0
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- id: gate
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run: |
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set -euo pipefail
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r=$(python3 scripts/pr-touches-paths.py .github/workflows/wai-quantum-docs.yml \
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"${{ github.event.pull_request.base.sha }}" \
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"${{ github.event.pull_request.head.sha }}")
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echo "this change touches the docs, the course or the locales: $r"
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echo "run=$r" >> "$GITHUB_OUTPUT"
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docs:
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name: every command and snippet in the docs · linux
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needs: relevant
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if: needs.relevant.outputs.run == 'true'
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runs-on: linux
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timeout-minutes: 180
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steps:
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- uses: actions/checkout@v5
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- name: Install Rust 1.98.0, and uv
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shell: bash
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run: |
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export PATH="$HOME/.local/bin:$HOME/.cargo/bin:$PATH"
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command -v rustup >/dev/null 2>&1 || \
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curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --profile minimal --default-toolchain 1.98.0
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rustup toolchain install 1.98.0 --profile minimal
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rustup default 1.98.0
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command -v uv >/dev/null 2>&1 || curl -LsSf https://astral.sh/uv/install.sh | sh
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echo "$HOME/.local/bin" >> "$GITHUB_PATH"
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echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
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- name: Build, start a service, and run every page
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shell: bash
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run: |
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set -euo pipefail
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bash wai/tools/quantum-docs/ci.sh 2>&1 | tee "$RUNNER_TEMP/docs.log"
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grep -q '^every check passed$' "$RUNNER_TEMP/docs.log" || { echo "::error::a page's check failed"; exit 1; }
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course:
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name: the course and the command line's languages · linux
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needs: relevant
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if: needs.relevant.outputs.run == 'true'
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runs-on: linux
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timeout-minutes: 60
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steps:
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- uses: actions/checkout@v5
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- name: Install Rust 1.98.0
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shell: bash
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run: |
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export PATH="$HOME/.cargo/bin:$PATH"
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command -v rustup >/dev/null 2>&1 || \
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curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --profile minimal --default-toolchain 1.98.0
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rustup toolchain install 1.98.0 --profile minimal
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rustup default 1.98.0
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echo "$HOME/.cargo/bin" >> "$GITHUB_PATH"
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# A module filter is satisfied by any one test of the module, so each test is
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# required by name to have run.
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- name: Every solution passes, every wrong answer fails, every locale is whole
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shell: bash
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working-directory: wai/wai-quantum
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run: |
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set -euo pipefail
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cargo test --locked --release --features full --lib -- engine::course:: 2>&1 | tee "$RUNNER_TEMP/course.log"
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grep -qE '^test result: ok\. 9 passed; 0 failed' "$RUNNER_TEMP/course.log" || { echo "::error::the course's tests did not all pass"; exit 1; }
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for t in every_solution_passes_its_exercise_and_every_known_wrong_answer_fails_it \
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a_check_says_what_went_wrong_from_the_engine_and_never_shows_the_solution \
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no_hint_or_lesson_gives_the_solution \
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every_locale_has_every_text_and_every_message \
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the_course_reads_and_every_lesson_is_in_one_unit_with_its_files \
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the_schemas_name_the_fields_the_reader_takes \
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a_check_is_the_same_bytes_every_time \
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the_estimate_lesson_prices_the_program \
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a_locale_tag_picks_the_course_s_locale; do
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grep -q "^test engine::course::tests::$t \.\.\. ok$" "$RUNNER_TEMP/course.log" || { echo "::error::$t did not run"; exit 1; }
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done
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- name: The command line's course and its languages
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shell: bash
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working-directory: wai/wai-quantum-cli
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run: |
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set -euo pipefail
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cargo test --locked --release --bin wai-quantum -- locale:: learn:: 2>&1 | tee "$RUNNER_TEMP/cli.log"
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for t in locale::tests::the_language_is_lang_else_the_environment_s \
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locale::tests::every_key_exists_in_every_locale_and_every_summary_is_translated_from_today_s_english \
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locale::tests::a_label_is_padded_by_its_width_on_a_terminal \
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learn::tests::progress_is_kept_in_one_file_and_marks_a_pass_once; do
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grep -q "^test $t \.\.\. ok$" "$RUNNER_TEMP/cli.log" || { echo "::error::$t did not run"; exit 1; }
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done
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locales:
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name: the Studio's words in every locale · linux
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needs: relevant
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if: needs.relevant.outputs.run == 'true'
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runs-on: linux
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timeout-minutes: 15
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steps:
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- uses: actions/checkout@v5
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- uses: actions/setup-node@v4
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with:
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node-version: '22'
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- name: Every key in every locale, with its placeholders
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shell: bash
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working-directory: wai/quantum-studio
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run: |
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set -euo pipefail
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node test/locales.test.mjs | tee "$RUNNER_TEMP/locales.log"
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grep -q '^every check passed$' "$RUNNER_TEMP/locales.log" || { echo "::error::a locale is missing a key"; exit 1; }
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