fix(ci): hydrate script starved sys.stdin by colliding with the heredoc#230
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… the heredoc program The hydrate step ran python via `python - <<'PY'`, which reads the PROGRAM from stdin — so piping the slug list into the same stdin collided: the interpreter either sees an empty sys.stdin (CI: heredoc wins → hydrated=0, printf broken pipe → pipefail exit 1) or tries to execute the slugs as source. Never worked; the conformance workflow's first real runs both died here. Pass the slug list in a temp file (SLUGFILE) and read that instead of sys.stdin, keeping the heredoc as the program. Verified end-to-end against a stub raincloud (under-cap hydrate, over-cap skip, null-size-as-0 all correct). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Second (and root) fix for the Raincloud conformance workflow (#205) hydrate-step failure. After the null-bytes fix (#229), the step still failed with
hydrated=0 skipped=0+printf: write error: Broken pipe.Cause: the step ran
printf '%s\n' "${SLUGS[@]}" | python - <<'PY'.python -reads its program from stdin, and the<<'PY'heredoc overrides the pipe as that stdin — so Python reads the script from the heredoc,sys.stdinis then at EOF (zero slugs), and theprintfpipe has no reader (broken pipe →pipefail→ exit 1). Undefined either way (locally the pipe won and tried to execute slug names as Python). It never worked; local conformance runs always used a pre-built manifest, so this was the workflow's first real execution.Fix: write the slug list to a temp file (
SLUGFILE, cleaned up on EXIT) and read that in the program instead ofsys.stdin, keeping the heredoc as the program. Verified end-to-end against a stubraincloud— under-cap hydrate, over-cap skip, and null-byte-size-as-0 all correct, manifest written, rc 0.🤖 Generated with Claude Code