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High ҙࣝ Android
mootoh
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FAQ
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: ϝϧΧϦͬͯ͏
ΞϓϦͯ͠Δ͠
Δ͜ͱͳ͍Μ͡Όͳ͍ͷ?
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A: ·ͩ·ͩ·ͩ·ͩ
·ͩ·ͩ·ͩ·ͩ
͋Δ
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2016/02~
• νϟϨϯδ
• Χϧνϟʔ
• ະདྷ
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2016
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Stats
% git diff --shortstat `git log --pretty=%H --since 'last year' | tail -n 1`
→ 2,029 files changed, +385,707, -170,628 ■■■■
% git log --pretty=%H --since 'last year' | wc -l
→ 4,049 commits
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Team of 4 in "#
#
"
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Team of 4→7 in "#$
$
#
"
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ެ҆9՝
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“զʑͷؒʹɺνʔϜϓϨʔͳͲͱ͍͏
߹ͷΑ͍ݴ͍༁ଘࡏͤΜɻ
͋Δͱ͢ΕελϯυϓϨʔ͔Βੜ͡Δɺ
νʔϜϫʔΫ͚ͩͩɻ”
— ߥרେี, 2002
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ެ҆9՝Ϟσϧ
• ߈֪ػಈୂ S.A.C
• ཱࣗͨ͠ଟ༷ͳϝϯόʔ
• ݸʑͷ؍͔ΒϓϩμΫτ/৫ͷվળΛ
࣮ફ͢Δ
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FAQ
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: ̓ਓΤϯδχΞ͍Ε
ेͰ͠ΐ
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A: ·ΔͰΓͳ͍
•
#, ", $ ͦΕͧΕʹ͔Ε͍ͯΔ
• ϓϩδΣΫτ͋ͨΓ 1~2ਓ
• ͬͱ͍ΕΕΔ͜ͱΛ૿ͤΔ
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Challenges
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No content
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ଠฏ༸Λ·͙ͨ Code Review
" PR
# Review
" Revise
# Review # LGTM
" Revise " Merge
☀ ☀ ☀ ☀
PR ͷཹ͕࣌ؒ͘ͳΔ → ϦϦʔε
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Solution A
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6:30am standup meeting
•
" ϝϯόʔ͕Έͳ༮ࣇ࣋ͪͩͬͨ
→ ڧ੍ૣى͖
• # ʹ༏͍͠ (ன)
• Նͩͬͨ → ே໌Δ͍ͷͰૣى͖͍͢͠
→ ࢼ͠ʹͬͯΈΑ͏
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݁Ռ:
•
• Sync ͷճ͕૿͑ͨ͜ͱʹΑΓɺϨϏϡʔͷޮ
্͕͕ͬͨ
•
• ࢠ͕6am ʹى͖ΔͷͰग़੮Ͱ͖ͳ͍
• ҙਤͷ֬ೝͳͲͰ͖Δ͕ PR ϕʔεͳͷͰ async
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Solution B
https://screenhero.com
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ScreenHero
• ϦϞʔτϖΞϓϩ
• protected void synchronized review { … }
• ࣌ؒ߹ΘͤΔඞཁ͕͋Δ
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݁Ռ
• ίϛϡχέʔγϣϯͷଳҬ͕͍
• ͍͚
• ॏ͍ϨϏϡʔͷ࣌ʹཱͭ
• PR Ͱ2-3ΓऔΓͯͯ͠Β͕͔ͪ͋ͳ͍ →
ͭͳ͍Ͱνϟνϟͬͱղܾ
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#
"
$
Or…
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ۃ Meeting
•
ཱྀ͍͍ͩͨඅ30~100ສ
• ͍͍ͩͨڑ
•
פ͍⛄️
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ݟ
• ૣى͖Ωπ͍͕ʹཱͭ
• ෳࡶʹԠͯ͡ίϛϡχέʔγϣϯͷଳҬΛม͑Δ
• ͕࣌ࠩൃੜ͠ͳ͍Α͏ʹνʔϜΛ͚Δͷ
• ۃΛఘΊͳ͍❄
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Challenges
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https://commons.wikimedia.org/wiki/File:Adobe_guadalupe_wine_barrel.jpg
ख़
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ख़ίʔυ
• ϓϩμΫτ։ൃΛ࠷ͰલʹਐΊ͖ͯͨ
• 3ख़ (࣌)
• ݹΊͷςΫϊϩδ
• (ಛʹ)৽͍͠ϝϯόʔʹͱͬͯมߋͮ͠Β͍
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ݹΊͷςΫϊϩδ 34
• Networking:
• HttpUrlConnection / Apache HttpClient
with ൿͷϨγϐ
• Async Operation:
• Callback Interface / EventBus
• Singletons
• Giant Activities
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→एฦΓ 5
• Networking: okhttp
• Async Operation: RxJava
• Singletons: Dagger2
• Giant Activities: MVVM
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ϦϑΝΫλϦϯά͍͕ͨ͠…
• Ҋ݅։ൃͰύπύπ
• ϦϑΝΫλϦϯά͢Δ͜ͱͰσάϨ͢Δ͜ͱ
͕͋ͬͨ
• QA ͔Βͷ৴པஷۚ㽊
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࡞ઓ⚽
• Ҋ݅ͷεέδϡʔϧʹ৫ΓࠐΉ
• ϦϑΝΫλͨ͠ํ͕ૣ͍ূڌΛੵ͢Δ
• ςετͰσάϨΛࢭ͠ɺ৴པΛஷΊΔ
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ݟ
• ৽͍͠ػೳ࣮Λ͢ΔલʹϦϑΝΫλϦϯά
• εέδϡʔϧʹ৫ΓࠐΉ
• ͡Θ͡Θ͛Δ
• ಆ͍ଓ͚ΔɺఘΊͳ͍
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Challenges
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#
"
1 → 8 0 → 1
Product Phase
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$ #
"
0 → 1 8 → 10 1 → 8
Product Phase
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Repository # " + $
• ONE OK REPOSITORY
• flavor Ͱ͚͍ͯͨ
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• มߋͮ͠Β͍
• isJP(), isUS(), isUK()
• #͚ͷมߋΛ͍͚ͨͩ͠ͳͷʹ"ͷίʔυΛؾʹ͠ͳ͍ͱ͍͚ͳ͍
• ࣌ࠩ (ઌड़)
• QA େม
• Өڹൣғ: #͚ͷมߋ͚ͩͲɺ΄Μͱʹ"յΕͯͳ͍?
• Region ͝ͱͰ phase ͕ҟͳΔ
• ༏ઌ։ൃελΠϧҟͳΔ
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Solutions
• ͻͱ·ͣ Branch Λ͚ͨ ⎇
• Fork ͨ͠ΒΔͷࠔ
• ͬͱ Region ͕૿͑ͨΒ?
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Challenges
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ID ج൫
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ID ج൫
• Single Sign On తͳͷ
• Mercari <-> Souzoh
• iOS / Android ͷϥΠϒϥϦॻ͘͜ͱʹͳͬͨ
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ݸਓతνϟϨϯδ
• Kotlin
• ຊମΞϓϦʹಋೖ᪳ΘΕΔ͕ϥΠϒϥϦʹͳΒ
• gRPC
• HTTP/2, Protobuf, ΫϩεϓϥοτϑΥʔϜ
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gRPC "#
•
#-"Ͱ gRPC ௨৴͢Δͱ͞ΔσόΠε͕
•
" Ͱ͕ൃੜ͠ͳ͍
• ϥΠϒϥϦͷԞਂ͍ͱ͜Ζʹ͕͋Γͦ͏
• ී௨ͷ௨৴͕ͳ͍
• ͔͕࣌ؒ͠͠ͳ͍⌛
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gRPC-gateway ?
• gRPC ͷαʔϏεʹ RESTful JSON API ͰΞΫ
ηεͰ͖Δ
• ී௨ͷ HTTPS ΞΫηεͭͳ͕Δ
• ճආ
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ݟ
• Kotlin
•
ϥΠϒϥϦɺςετͳͲ͔Β߈ΊΔ → μϝʔδগͳ͍
•
ϨϏϡʔ͞ΕͮΒ͍
• gRPC
• REST ಀ͕͛ͩʹཱͭ
• ίϯτϦϏϡʔγϣϯͰ͖Δ༨༟Λ͓ͯ͘͠
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Future
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·ͩ·ͩ·ͩ·ͩ·ͩ·ͩ͋Δ
• ܻҧ͍ʹͨ͘͞Μͷ A/B ςετΛ
؆୯ʹճͤΔΈ
• ଞ Region ্ཱͪ͛
• Inter-Region ചങ
• 3D ग़ɺ VR γϣοϐϯά (ໝ)
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Wrap Up
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Wrap up
• ·ͩ·ͩνϟϨϯδ͕͋Δ
• ٕज़త & ϓϩμΫτత
• ެ҆̕՝Ϟσϧ
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“و༷ɺ͍͍Λ͍ͯ͠Δͳɻ
ࠓ͔Βࢲͷ෦ԼʹͳΕɻ”
— ಽૉࢠ, 2004
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