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cxymds
89 lines
4.1 KiB
Bash
Executable File
89 lines
4.1 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Count-floor guard for the migration-critical test gate (backlog#1153 infra-12).
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#
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# ci.yml's migration gate selects tests BY NAME SUBSTRING. A rename that drops
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# a test out of the filter silently thins the gate — potentially to zero —
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# without any CI signal (this is how the layered gate died when #878 closed).
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# This script owns the filter expression so the count check and the test run
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# cannot drift, and fails fast when the number of selected tests drops below
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# the committed floor in .config/migration-gate-floor.txt.
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#
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# NAMING CONVENTION DEPENDENCY: migration-gate tests are matched by these
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# reserved name substrings:
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#
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# data_movement, rebalance, decommission, source_cleanup, delete_marker
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#
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# Renaming a test away from all of these substrings removes it from the gate.
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# The floor equals the exact selected-test count at the time it was last
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# committed, so ANY reduction fails CI. To shrink the gate intentionally
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# (test removed or consciously renamed), update the floor file in the same PR
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# so the reduction is visible in the diff. Adding tests never requires a floor
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# bump (the floor is a lower bound), but bumping it keeps the guard tight.
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#
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# Per-pattern floors are deliberately omitted: with an exact-count total floor,
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# a single test dropping out of any pattern already fails the check, so
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# per-pattern bookkeeping would add churn without detection power.
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#
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# Usage:
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# scripts/check_migration_gate_count.sh # count check + run the gate
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# scripts/check_migration_gate_count.sh check # count check only
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# scripts/check_migration_gate_count.sh run # run the gate only
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set -euo pipefail
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cd "$(dirname "$0")/.."
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# Single source of truth for the migration-gate target and filter. The
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# test-util feature activates migration-critical tests that otherwise leave
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# their shared fixtures compiled but unused. ci.yml must invoke this script
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# instead of inlining either selection.
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MIGRATION_GATE_TARGET_ARGS=(-p rustfs-ecstore --lib --features test-util)
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MIGRATION_GATE_FILTER='test(data_movement) or test(rebalance) or test(decommission) or test(source_cleanup) or test(delete_marker)'
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FLOOR_FILE=".config/migration-gate-floor.txt"
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mode="${1:-all}"
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case "$mode" in
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all | check | run) ;;
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*)
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echo "usage: $0 [all|check|run]" >&2
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exit 2
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;;
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esac
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if [[ "$mode" == "all" || "$mode" == "check" ]]; then
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floor="$(grep -Ev '^[[:space:]]*(#|$)' "$FLOOR_FILE" | head -n1 | tr -d '[:space:]')"
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if ! [[ "$floor" =~ ^[0-9]+$ ]]; then
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echo "error: $FLOOR_FILE does not contain a numeric floor (got: '$floor')" >&2
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exit 1
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fi
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# Count via the structured JSON listing, not the human format: the
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# human format's indentation varies across nextest versions (CI's newer
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# nextest emitted a layout where no line matched '^ ', collapsing the
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# count to 0 and failing every PR). A nextest failure aborts via set -e
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# with its stderr visible; a JSON schema change makes jq fail loudly
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# rather than silently passing.
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count="$(cargo nextest list "${MIGRATION_GATE_TARGET_ARGS[@]}" -E "$MIGRATION_GATE_FILTER" --message-format json \
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| jq '[."rust-suites"[].testcases[] | select(."filter-match".status == "matches")] | length')"
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if ! [[ "$count" =~ ^[0-9]+$ ]]; then
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echo "error: could not parse nextest JSON listing (got count: '$count')" >&2
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exit 1
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fi
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if ((count < floor)); then
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echo "error: migration gate selects $count tests, below the committed floor of $floor." >&2
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echo "" >&2
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echo "The gate matches tests by name substring (data_movement / rebalance /" >&2
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echo "decommission / source_cleanup / delete_marker). A rename or removal has" >&2
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echo "thinned the selection. Either restore the test names, or — if the" >&2
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echo "reduction is intentional — update $FLOOR_FILE in this PR so the" >&2
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echo "gate change is explicit and reviewable." >&2
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exit 1
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fi
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echo "migration gate count OK: $count selected tests (floor: $floor)"
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fi
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if [[ "$mode" == "all" || "$mode" == "run" ]]; then
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cargo nextest run "${MIGRATION_GATE_TARGET_ARGS[@]}" -E "$MIGRATION_GATE_FILTER"
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fi
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