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[AZ-504] Fix grep | wc -l pipefail crash in PT-08 batch counting

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scripts/run-performance-tests.sh:416-417 used `grep -o ... | wc -l`
to count `"status":"accepted"` and `"status":"rejected"` markers in
the PT-08 batch response. On the happy path (rejected=0) grep -o
exits 1, and under `set -o pipefail` + `set -e` (line 16) the
pipeline killed the script before reaching any of PT-08's reporting
code — reproducing twice in the cycle-3 perf-harness leftover
(replay #2 + #3 post-AZ-500).

Fix: neutralise grep's no-match exit locally with `|| true` on the
grep stage of each pipeline. `grep -o | wc -l` is kept (not swapped
for `grep -c`) because the PT-08 response is compact JSON — all
items live on one line, so `grep -c` would always return 1 and lose
occurrence-count semantics. An 8-line comment explains why grep
cannot fail for I/O at this code path (file is curl-written, HTTP
200 gated).

AC-1 + AC-2 verified in-place against a standalone harness under
`set -e -o pipefail` (compact-JSON, mixed-status, edge-empty
cases). AC-3 + AC-4 are Step 15 (Performance Test) obligations by
spec design — the leftover deletion (AC-4) is "in the same commit"
as the green full perf run.

Batch report: _docs/03_implementation/batch_01_cycle5_report.md.
Code review: _docs/03_implementation/reviews/batch_01_cycle5_review.md
— PASS, no findings.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
Oleksandr Bezdieniezhnykh
2026-05-12 16:32:36 +03:00
parent 8e509b550c
commit ab437a15df
4 changed files with 101 additions and 2 deletions
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scripts/run-performance-tests.sh
+10 -2
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@@ -413,8 +413,16 @@ else
continue
fi
accepted=$(grep -o '"status":"accepted"' "$PERF_TMP_DIR/pt08_resp.json" | wc -l | tr -d ' ')
rejected=$(grep -o '"status":"rejected"' "$PERF_TMP_DIR/pt08_resp.json" | wc -l | tr -d ' ')
# AZ-504: grep exits 1 on zero matches. Under `set -o pipefail` (line 16)
# that kills the assignment and crashes the script on the happy path
# (rejected=0). Neutralise the no-match case locally with `|| true` so
# the pipeline still produces a count. The response is compact JSON
# (one line, all items) so `grep -o | wc -l` is required to count
# occurrences — `grep -c` would only count matching lines (=1). The
# file is guaranteed-readable here (curl wrote it earlier in this
# iteration on the HTTP 200 branch), so grep cannot fail for I/O.
accepted=$({ grep -o '"status":"accepted"' "$PERF_TMP_DIR/pt08_resp.json" || true; } | wc -l | tr -d ' ')
rejected=$({ grep -o '"status":"rejected"' "$PERF_TMP_DIR/pt08_resp.json" || true; } | wc -l | tr -d ' ')
PT08_ACCEPTED=$((PT08_ACCEPTED + accepted))
PT08_REJECTED=$((PT08_REJECTED + rejected))