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! ςετΛॻ͔ͳ͍ͨΊͷςετ Omotesando.rb #105, Roppongi.rb #26 2025/01/09 1

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ࣗݾ঺հ • ໊લ: ਖ਼ಙ ޼(aka: ਆ଎) • GitHub: @sinsoku (ը૾ӈ্) • X: @sinsoku_listy (ը૾ӈԼ) • Railsྺ: 10೥͘Β͍ 2

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એ఻: sinsoku/rbs-trace 3

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! sinsoku/rbs-trace • ςετͷ࣮ߦ࣌ʹܕ৘ใΛऩू • ࣗಈతʹ rbs-inline ͷίϝϯτΛૠೖ 4

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! rbs-trace ͷ࿩͸4݄ࠒʁ 5

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ຊ୊: ςετॻ͍͍ͯ·͔͢ʁ 6

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! rbs-trace ͷΧόϨοδ 7

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! ࠷ۙͷrbs-traceͷ։ൃ1 • खಈͷಈ࡞֬ೝ • RuboCop ͸ rubocop:disable ͰޡຐԽ͢ • Steep ͸ steep:ignore ͰޡຐԽ͢ • v0.x ͳͷͰޓ׵ੑ΋कΒͳ͍ 1 1্݄०ʹ࣮૷ͷ໨ॲΛཱ͔ͯͨͬͨ 10

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! ࠷௿ݶͷಈ࡞֬ೝ͸͍ͨ͠2 2 ςετ͸ϦϦʔεલʹॻ͖·͢ɻͨͿΜ 11

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! Smoke tests ࣮ࡍͷRailsΞϓϦʢRedmine, MastodonʣͰಈ࡞֬ೝ͢Δɻ • tmpσΟϨΫτϦʹ git-clone ͢Δ • ։ൃதͷgemΛೖΕΔ • ςετ͕શͯ௨Ε͹ɺͨͿΜେৎ෉ʁ 12

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! sinsoku/rbs-trace#153 3 https://github.com/sinsoku/rbs-trace/pull/15 13

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⭐ ϙΠϯτ • Bundler.with_unbundled_env • RailsΞϓϦͷGemfileΛ࢖͏ͨΊ • -"fail-fast -"seed 0 • 1ͭͰ΋ࣦഊͨ͠ΒςετΛࢭΊΔ • flaky tests Λආ͚Δ 14

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✅ without rbs-trace 15

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! with rbs-trace 16

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! Τϥʔͳ͠ɺϤγʂ 17

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༨ஊ: গ͠ύϑΥʔϚϯεվળͨ͠ 18