testsAndMisc/meta
Krzysztof kuhy Rudnicki 28f2925c30 Instrument: multi-line array elements are not statements; clear arch_perf_fixes
Fourth flavour of defect (a) found this session, after multi-line quotes,
`} |` and the backslash-continued assignment. bash reports a multi-line array
assignment at its OPENING line and never emits the element lines or the
closing paren, so kcov instrumenting them inflates the denominator:

    +L3 items=('one' 'two')      # opened line 3, closed line 6
                                 # lines 4, 5, 6: never emitted

The rule is therefore symmetric with the existing multi-line-quote case: the
opening line is the statement, everything up to the closing paren is data.
_closes_array() finds that paren by recomputing quote state per candidate, so
an element like "a(b)" does not end the literal early.

Measured effect through fixes/lib/tests/run_all.sh:

  arch_perf_fixes.sh  93.48% -> 100.00%  (43/43)
  bt_audio.sh        100.00% -> 100.00%  (127/127)
  arch_perf_report.sh 100.00% -> 100.00% (59/59)
  arch_perf_probes.sh 100.00% -> 100.00% (93/93)
  ubuntu_perf_more.sh 100.00% -> 100.00% (32/32)
  bt_report.sh       100.00% -> 100.00%  (37/37)
  bt_pairing.sh      100.00% -> 100.00%  (65/65)

One gained, six held, none went DOWN. Acceptance test unchanged:
dot_resolver_install.sh 39/39 and rpi_nc_ca.sh 73/73. arch_perf_fixes.sh
therefore comes off the allowlist in the same commit, confirmed by the real
gate with no exemption.

The fail-open check, since over-detection INFLATES coverage: the old and new
predicates were diffed over every allowlisted lib plus the six cleared ones,
printing each newly excluded line WITH its text. All 91 across 10 libs are
array elements or closing parens -- common.sh's tool tables, packages.sh's
associative arrays, arch_sysctl.sh's sysctl maps, thorium_repairs.sh's four
path lists, ubuntu_perf_fixes.sh's sssd units, and so on. No statement caught.

Tests cover both directions, including three negatives: a single-line
`x=(a b)`, an element containing a parenthesis, and `x=$(echo hi)` which is a
command substitution rather than an array. Module stays at 100% branch
coverage.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-22 20:13:45 +02:00
..
lib Split lint_python.sh: output helpers and the full-mode linters 2026-08-16 23:08:02 +02:00
scripts Instrument: multi-line array elements are not statements; clear arch_perf_fixes 2026-08-22 20:13:45 +02:00
.fvmrc chore: consolidate root configs into meta/, drop unused C dir + split/pdfCentered/geo_data 2026-05-14 20:40:12 +02:00
.pre-commit-config.yaml Split modules, fix tests, fix pre-commit batching 2026-05-22 22:48:28 +02:00
lint_python.sh Resolve the symlink in lint_python.sh's SCRIPT_DIR 2026-08-16 23:13:07 +02:00
pyproject.toml Split code_tutor cli and verifier, deleting two lint suppressions 2026-08-16 17:57:38 +02:00
requirements.txt Add android_ui: drive Android apps by element, never by coordinates 2026-08-10 17:01:28 +02:00
run.sh Fail the build on any shellcheck finding; fix the 222 the old gate hid 2026-08-03 19:49:11 +02:00
shell-coverage-allowlist.txt Instrument: multi-line array elements are not statements; clear arch_perf_fixes 2026-08-22 20:13:45 +02:00