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Run CIFuzz only for pull requests that touch the fuzzed code (#2521)
The fuzzers build httplib.h and the targets under test/fuzzing, so a pull request that touches neither has nothing for CIFuzz to exercise. Fuzzing is by far the longest job in CI: 600 seconds of fuzzing on top of building the OSS-Fuzz image, which came to 12m20s on a recent run while every other job finished within 5m7s. Filter the trigger by path rather than shortening fuzz-seconds. OSS-Fuzz recommends 600 seconds as a minimum, and the budget is divided among all of the project's fuzz targets, so with five targets a shorter run would leave each one well under two minutes. Skipping the job for documentation-only changes cuts the wait without giving up any fuzzing on the pull requests that do reach the parsers.
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.github/workflows/cifuzz.yaml
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.github/workflows/cifuzz.yaml
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@@ -1,6 +1,16 @@
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name: CIFuzz
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name: CIFuzz
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on: [pull_request]
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# The fuzzers only build httplib.h and the targets under test/fuzzing, so a
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# pull request that touches neither has nothing for CIFuzz to exercise. Fuzzing
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# is by far the longest job in CI (10 minutes of fuzzing on top of building the
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# OSS-Fuzz image), and skipping it for documentation-only changes keeps the
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# full 600 seconds for the pull requests that do reach the parsers.
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on:
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pull_request:
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paths:
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- 'httplib.h'
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- 'test/fuzzing/**'
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- '.github/workflows/cifuzz.yaml'
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concurrency:
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concurrency:
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group: ${{ github.workflow }}-${{ github.ref || github.run_id }}
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group: ${{ github.workflow }}-${{ github.ref || github.run_id }}
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