Goでのチーム開発とコード管理の悩み/Team development and code management in Go

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GoͰͷνʔϜ։ൃͱ  ίʔυ؅ཧͷ೰Έ ୈ2ճ ؔ੢golangษڧձ Kentaro Kawano

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About Me • Kentaro Kawano/@kawaken • γφδʔϚʔέςΟϯά, TechScore • Go, Python, Rails, swift

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Goྺ • ݸਓ – 1.2͔Β͞ΘΓॳΊͨ – CLIπʔϧͳͲͷ࡞੒͕த৺ – WebΞϓϦ͸࡞ͬͯͳ͔ͬͨ • ࢓ࣄ – σʔλ࡞੒ɺνϟοτ༻πʔϧͳͲ – 9݄͔Βຊ֨తʹϓϩδΣΫτʹಋೖ

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νʔϜ։ൃͷ೰Έ

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GoͷϨϕϧ্͛ • ֶश͕ඞਢ – ৮ͬͯΔਓগͳ͍ – Go Quiz Έ͍ͨͳڭࡐΛ΄΅೔Ͱఏڙ • ໰୊࡞Δͷ͠ΜͲ͔ͬͨ – ि1ճ30෼ͷ؆୯ͳษڧձ – ॻ੶

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৘ใऩू • Blog, GoCon, Advent Calendar ͳͲ • ଞࣾࣄྫ͸͋Γ͕͍ͨ – ࢀߟʹͳΔ͠ʮGo૿͑ͯΔײʯ͸େࣄ

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։ൃ؀ڥߏங • ϝϯόʔͷ؀ڥ – جຊ͓೚ͤ • Ҏલ͸VirtualBoxͷΠϝʔδΛ഑෍ – Α͘࢖͏πʔϧͷΠϯετʔϧεΫϦϓτΛ࡞ ੒ • golang.org/x/tools/cmd/ʙ • golint,gocode ͳͲίʔυؔ࿈ͷπʔϧ • gom,fresh,gooseͳͲͷϓϩδΣΫτͰ࢖͏πʔϧ

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CI/CD؀ڥ • ৽͘͠ߏங – طଘ؀ڥͷྲྀ༻Ͱ͸্ख͍͔͘ͳ͍͜ͱ΋ • ίʔυԽΛ໨ࢦ͢ʢʙ as a Codeʣ – drone.io(Docker),Ansible,TerraformͳͲ • ੩తϑΝΠϧͷѻ͍͕ఆ·ͬͯͳ͍ – go-bindata? • ϗοτσϓϩΠ͕ະݕূ – ಈ࡞֬ೝͰ͖ͯͳ͍

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ϨϏϡʔ • gofmt,golintͳͲπʔϧͰࠣ຤ͳ෦෼͸ճආ – CIͰ΋νΣοΫͰ͖Δ • εΩϧ͕ίʔυʹݱΕ΍͍͢ؾ͕͢Δ – εΩϧࠩͰͲ͏ͯ͠΋ѱ͍ํ͕໨ཱͭ • جຊతͳ෦෼ͷهड़͕૿͑Δ͔Βʁ – ڭҭେࣄͰ͢ͶɺΈ͍ͨͳҙࣝͷߴ·Γ • Go Β͍͠ίʔυͱ͸Կ͔ʁ – ·ͩΑ͘Θ͔Βͳ͍ – มͳίʔυʹ͸ͳΓʹ͍͘

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ίʔυ؅ཧͷ೰Έ

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ϥΠϒϥϦͷબ୒ • ރΕͯΔɺϝϯς͞Εͯͳ͍ͷ൑அ͕೉͠ ͍ • ୯७ͳϕϯνϚʔΫ͚ͩͰ͸Θ͔Βͳ͍ – MiddlewareɺηΩϡϦςΟରࡦɺηογϣϯ ؅ཧͳͲ • ໎ͬͨΒඪ४ʹدͤΔʢϜϦʹ࠾༻͠ͳ ͍ʣ

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Gin • Gin࠷଎ʂΈ͍ͨͳهࣄ΋͋Δ • ࠾༻ࣄྫ΋ݟ͔͚Δ • ϝϯς͞Ε͍ͯΔͷʁΈ͍ͨͳIssue΋͋ͬͨ • contribͷϓϧϦΫ͕์ஔ͞Ε͍ͯͨΓ… • ࢖͍ͬͯΔਓ͸ଟͦ͏͚ͩͲɺຊ౰ʹେৎ෉ ͔ʁ – ࠷ѱࣗ෼ͨͪͰϝϯς͢Δͱ͍͏֮ޛͰ࠾༻

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ύοέʔδߏ੒ • SCMʹ͸GitLabΛ࢖༻ – αϒύοέʔδͷ go get ͕Ͱ͖ͳ͍ • ݸผͷϦϙδτϦΛ࡞ͬͯରԠ • ࣮૷্ͷෆ౎߹͸ͳ͍ • CIͷઃఆͳͲ͕खؒ

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Gom • master ʹ໰୊͕͋Δͱɺϒϥϯνͷ੾Γସ ͕͑Ͱ͖ͳ͍ – gin-gonic/contrib/sessions – aws/aws-sdk-go • ࠷ۙɺҰ࣌తʹmaster͕ϏϧυΤϥʔʹ • Ұ࣌తʹforkͯ͠मਖ਼ • मਖ਼ΛϓϧϦΫ͍͕ͨ͠ख͔ͭͣ…

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σʔλϕʔεؔ࿈ • database/sqlͱlib/pqͰؤுͬͯΔ • drone/sqlgenΛ࢖ͬͯΈͨ – JSONܕͰ࢖͍ํ͕߹Θͳ͔ͬͨ • Ϟσϧؔ࿈ͷίʔυδΣωϨʔλΛࣗ࡞ – ERਤ͔ΒϞσϧ࡞੒ • ݕࡧػೳͳͲͰSQLͷ૊Έཱͯʹۤ࿑ – ΫΤϦϏϧμ͸࠾༻ͯ͠΋ྑ͔͔ͬͨ΋…

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໊લ෇͚໰୊ • ৑௕ͰࣅͨΑ͏ͳ໊લͷఆ͕ٛ૿͑Δ – ϦΫΤετύϥϝʔλอ࣋༻ͷstruct • HogeRequestParams • FugaRequestParams – ίʔυ஋؅ཧ༻ͷconst • ܕ໊Λઌʹ͚ͭͯճආ – ABSuccess – XYSuccess – ڞ௨Խ΋Ͱ͖ͳ͍… • ύοέʔδΛࡉ͔͘͢Δ͔͠ͳ͍ʁ

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ςετؔ࿈ • testifyΛ࢖ͬͯassertion͸؆୯ʹॻ͚ΔΑ͏ • go test – ./... Λ͚ͭͳ͍ͱμϝ • αϒύοέʔδͷςετ͕εϧʔ͞Ε͍ͯͨ – -race ΋͚ͭΔ • ඇಉظॲཧͰո͍͠ͱ͜Ζ͕ݕग़Ͱ͖Δ • ݁Ռ͕Θ͔Γʹ͍͘ͷͰͲ͏ʹ͔͍ͨ͠

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GOͷײ૝

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ֶशίετߴ͘ͳ͍ • ߴ͘ͳ͍ͱݟࠐΜͰ͚ͨͲɺ࣮ࡍߴ͘ͳ͍ • ֮͑Δ͜ͱ͕ଟ͘ͳ͍ • goroutineपΓͰͪΐͬͱϋϚͬͨఔ౓ – ࢖͍ํͷ໰୊ – syncύοέʔδͰղܾͰ͖Δͱࢥ͏ • มͳ҉໧஌͕ͳ͍

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։ൃޮ཰΋ѱ͘ͳ͍ • Railsͱൺֱͯ͠ – ίʔυΛॻ͘ྔ͸૿͑ͨͱࢥ͏ – มͳϋϚΓํ͠ͳ͍ – ͙͢ʹಈ͘Ϟϊ͸Ͱ͖ͳ͍ • ؀ڥ੔උʹ͕͔͔࣌ؒͬͨ – ࠷ॳͳͷͰ࢓ํͳ͍ – ͔࣍Β͸୹ॖͰ͖Δ࣌ؒ • ࠓ·Ͱͱൺ΂ͯḮ৭ͳ͍ޮ཰ͰਐΜͰ͍Δ – ࠷ॳͷํ͸௿໎͚ͯͨ͠Ͳ৐Γ੾ͬͨ

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ӡ༻͸͜Ε͔Β • ࣮ࡍ΍ͬͯΈͳ͍ͱΘ͔Βͳ͍ • ίετ࡟ݮʹͭͳ͕ͬͨΒͱ͍͏ظ଴ – AWSͷΠϯελϯεΛখ͍͞Ϟϊʹม͑Δͱ͔ – ࠓޙͷόʔδϣϯΞοϓରԠͷෛՙ

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͓ΘΓ ͝੩ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠