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RWC2013
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Kuniaki IGARASHI
November 21, 2013
Technology
2
760
RWC2013
「広がるRubyの学びの場」
RubyWorldConference2013
at 松江 くにびきメッセ
2013.11.21
Kuniaki IGARASHI
November 21, 2013
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Transcript
ͻΖ͕Δ3VCZͷֶͼͷ 8JEFTQSFBE3VCZ-FBSOJOH4QBDF ޒेཛྷ໌,VOJBLJ*("3"4)* 3VCZ8PSME$POGFSFODFTU0DU ! HJUIVCJHBJHB UXJUUFSJHBJHB GBDFCPPLIUUQXXXGBDFCPPLDPNLVOJBLJJHBSBTIJ
ޒेཛྷ໌ גࣜձࣾTQJDFMJGF Ұڮେֶඇৗۈߨࢣ HJUIVCJHBJHB UXJUUFSJHBJHB IUUQXXXGBDFCPPLDPNLVOJBLJJHBSBTIJ
ΤϯδχΞɺσΟϨΫλʔɺ σβΠφʔɺαϙʔτελοϑ ืूத IUUQCJUMZUNJYHPSCZ
͋ͱͰ 3BJMT ʘTQPUMJHIUTʗ ΤϯδχΞɺσΟϨΫλʔɺ σβΠφʔɺαϙʔτελοϑ ืूத
͢͜ͱ 3VCZڭҭʹ͍ͭͯͷܦݧஊ ͍͔ͭ͘ͷ3VCZͷֶͼʹ͍ͭͯͷࣄྫ ڞ௨ͷ՝ɺϙΠϯτ ! ͞ͳ͍͜ͱ ٕज़ͷਂ͍ ͜ͷൃදͰ͢͜ͱɾ͞ͳ͍͜ͱ
࠷ॳʹ࣭Ͱ͢ ͆ 2VFTUJPO
Έͳ͞Μ͕3VCZͱΓ߹ͬͨ ͖͔͚ͬͳΜͰ͔͢ʁ )PXEJEZPV NFFU3VCZ
IUUQXXXqJDLSDPNQIPUPTJHBJHB IUUQXXXqJDLSDPNQIPUPTITCU 3BJMT(JSMT 3BJMTࣉࢠ3BJMT5FSBLPZB ͦͷଞͷ౦ژͷࣄྫ ,JET3VCZJO50,:0 4UVEFOUTSC 6ϓϩάϥϛϯά͘ΒͿʢ3VCZࡾୋڭࣨʣ ! ౡࠜɺদߐͷࣄྫ
ౡࠜ3VCZ߹॓ ʙ ౡࠜେֶͰͷߨٛ ʙ দߐதֶੜ3VCZڭࣨ 3VCZ+S ৽ֶ͍͠ͼͷ͕ͨ͘͞ΜͰ͖ͨͷ͕ ͜͜ఔͷ3VCZΤίγεςϜͷϗοττϐοΫͷͭ ͦ͜Ͱ3VCZΛ࢝ΊΔਓͨ͘͞Μग़͖ͯ·ͨ͠ Ұڮେֶߨٛ-FDUVSFJO)JUPUTVCBTIJ6OJW
͏࣭ͭͰ͢ 0OFNPSFRVFTUJPO
Έͳ͞Μ3VCZΛ Ͳ͏ֶͬͯͼ·͔ͨ͠ʁ )PXEJEZPV MFBSO3VCZ
IUUQXXXqJDLSDPNQIPUPTJHBJHB IUUQXXXqJDLSDPNQIPUPTITCU 3BJMT(JSMT 3BJMTࣉࢠ Ұڮେֶߨٛ-FDUVSFJO)JUPUTVCBTIJ6OJW ͦΕͧΕͷͰͦΕͧΕͷతͱํ๏ ͭͷࣄྫʹ͍ͭͯৄ͓͘͠͠͠·͢
3VCZ3BJMT ඇৗۈߨࢣۀ Ұڮେֶ3VCZߨٛ -FDUVSFJO)JUPUTVCBTIJ6OJW
తɿϓϩάϥϛϯάاըͰ͖ΔਓࡐΛҭͯΔ จܥͷֶՊɺϓϩάϥϛϯάະܦݧऀ͚ ߨٛظؒؒɻબՊɻֶ෦ʙେֶӃ͚ɻ લظ3VCZɺޙظ3BJMTɻ ݄ΑΓࢲ͕ඇৗۈߨࢣͰ୲ ʢߨ࠲ࣗମ͔Βʣ ผ్ɺ-FXJTڭतͷ3BJMTͰͷ8FCΞϓϦߨٛ͋Γ ֶੜͷౡࠜ3VCZ߹॓ͷࢀՃ ୯Ґͱͯ͠ೝఆ
ҰڮେֶχϑςΟגࣜձࣾدෟߨٛ 3VCZߨٛ
ߨٛ࣌ؒɻ࠲ֶɺԋशɻ ֶੜਓ͔Βਓ 1$ֶੜ͕࣋ͪࠐΈ ି͠ग़͋͠Γ 5"ͱਓͰ࣭ରԠɺԋश՝ͷ࠾ 3VCZPS 3BJMT ߨٛํ๏
ࣗ࡞ࢿྉIUUQTHJUIVCDPNJHBJHBIJUPUTVCBTIJSVCZ ͨͷ͍͠3VCZୈ൛*4#/ 8FCͷࢿྉ 3VCZ3FGFSFODF.BOVBM υοτΠϯετʔϧ IUNM DTT
IUUQEPUJOTUBMMDPN $PEFDBEFNZIUUQXXXDPEFDBEFNZDPN ڭՊॻ
ࣗ࡞ࢿྉͰ͖Δ͚ͩਤΛଟ͘ɺ͔Γқ͘ IUUQTHJUIVCDPNJHBJHBIJUPUTVCBTIJSVCZ
՝ྫɿίʔυΛࣸܦ࣮ͯ͠ߦ͢Δ ͭ·͖͍ͮ͢Օॴ ΩʔϘʔυΛଧͭ z@d ΤσΟλͰϑΝΠϧΛࢦఆͨ͠ϑΥϧμʹอଘ͢Δ TIFMMͰ࣮ߦ͢Δ ελʔτ࣌ ϲ݄΄ͲͰશһίʔυΛࣸܦ࣮ͯ͠ߦͰ͖ΔΑ͏ʹͳΔ
ߨٛ༰ɹ3VCZฤ 3VCZޠͷੈքɺTIFMMޠͷੈք ࢛ଇԋࢉɺจࣈίʔυɺม ݅அɺ܁Γฦ͠ɺ.FUIPE "SSBZ )BTI 0CKFDU $MBTT *OTUBODF 8JLJQFEJBΞΫηεղੳ
UXJUUFSEBUBͷղੳ IUUQTHJUIVCDPNJHBJHBIJUPUTVCBTIJSVCZ
ߨٛ༰ɹ3BJMTฤ Ұ൪খ͞ͳ3BJMTΞϓϦͭ͘Γ DPOUSPMMFS WJFX TDBGGPMEͰͰ͖ͨͷͷղઆ ϦΫΤετ SPVUFT DPOUSPMMFS WJFX
NPEFM 3BJMTΞϓϦͷಈ͖Λ؍͢Δ $ISPNFͰϦΫΤετΛ؍ɺMPHɺQɺQSZ "DUJWF3FDPSE %# 1BB4 $4" Ͱωοτʹެ։ IUUQTHJUIVCDPNJHBJHBIJUPUTVCBTIJSVCZ
גࣜձࣾχϑςΟͷ1BB4$4" ϒϥβ͔ΒίʔυฤूՄೳ ϩʔΧϧڥෆཁ 3BJMTରԠ IUUQDTBOJGUZDPN
ؒͷՌ ൃද༰ͷྫ ɾUXJUUFSσʔλΛղੳͯ͠ͲͷӺ͕ʹ͗Θ͍ͬͯΔ͔ΛௐΔ ɾਓͰϓϨΠͰ͖ΔγϡʔςΟϯάήʔϜͷ࡞ ɾ&YDFMͱΈ߹Θͤͨμʔπಘܭࢉ ɾFMFBSOJOH8FCΞϓϦ ɾ࠲͍8FCΞϓϦ ɾͷग़ɺͷೖͷ࣌ࠁΛJ1IPOF1VTI௨ IUUQJHBSBTIJLVOJBLJOFUEJBSZIUNM ࠷ޙʹࣗͰ՝Λઃఆͯ͠िͰ࣮ɺൃද
None
ཧղ͕͍͠ͱ͜Ζ TIFMMͷੈքɺ3VCZͷੈքͷཧղ λʔϛφϧʹ3VCZͷίʔυΛॻ͍ͯ͠·͏ จ๏ΑΓΞϧΰϦζϜ͕͍͠
FBDIͷ༻ྫͱͯ͠ɺ< >ͷΛٻΊΔ खͰղ͚ΔͷಘҙUIHTVC UI TU TU )BTIۤख ࢿྉ͕ͳ͍ ϓϩάϥϚʔ͚ͷࢿྉɾຊͨ͘͞Μ͋Δ͕ɺ ϓϩάϥϛϯάΛ࢝ΊΔਓ͚ͨͷ͋·Γͳ͍ ΤϯδχΞ͕ڭ͑Δ ࠷৽ͷ3VCZքͷঢ়گʹ͋Θͤͯڭ͑ΒΕΔ ରͱͳΔֶՊͷઌੜͱೋਓࡾ٭ͩͱ૬ஊͰ͖ͯྑ͍ 5%%ڭҭʹ༗ޮ ؾ͖ͮ ˞େֶߨٛʹ͍ͭͯৄͪ͘͜͠Β͝ࢀর͍ͩ͘͞IUUQTTQFBLFSEFDLDPNJHBJHBLZVTIV
3BJMT(JSMT
ʮΑΓଟ͘ͷঁੑ͕ϓϩάϥϛϯάʹ͠ΈɺΞΠσΞ ΛܗʹͰ͖Δٕज़Λʹ͚ͭΔखॿ͚Λ͢ΔϫʔΫγϣο ϓͱͦͷίϛϡχςΟʯ ! ʹϔϧγϯΩͰ࢝·ΓɺຊͰ݄͔Β ౦ژͰݱࡏ·Ͱճ։࠵ɻ΄͔ɺژɺࡳຈͰɻ দߐ໌͔Βͷ ۚ
Ͱ։࠵ ֤ճͷࢀՃऀਓલޙ 3BJMT(JSMT
3BJMTΛ ͋·Γ ͬͨ͜ͱ͕ͳ͍ํ ϓϩάϥϛϯάΛ ͋·Γ ͬͨ͜ͱ͕ͳ͍ํ ରऀ 8FCσβΠφʔɺσΟϨΫλʔɺଞݴޠͷϓϩάϥϚͳͲ ଟ࠼ͳ৬ۀͷํɺֶੜ͕ࢀՃ
ؒͷ8PSLTIPQ ։ൃڥߏங ࣸਅߘػೳ͖ϛχϒϩάΞϓϦ 1BB4αʔϏεΛར༻ͯ͠ެ։ ༰ 8FCʹࢿྉ ຊޠ༁ ͕ެ։͞Ε͍ͯΔ ˞͜ͷ8PSLTIPQͷࡐͱࢿྉ͔Γқ͍ͷͰ͓קΊ IUUQSBJMTHJSMTKQ
"QQMJDBUJPO 4DSFFOTIPU
None
ҰॹʹࣄΛ͍ͯ͠Δಉ྅ͷϓϩάϥϚ͕ ͍ͬͯΔ͜ͱΛΓ͍ͨ ύʔτφʔͷࣄΛΓ͍ͨ ࣗͰαʔϏεΛ࡞Γ͍ͨ ࢀՃͷಈػ
3BJMT (JSMT .PSF ຖ݄ճ։࠵ ܧଓ
ίϛϡχςΟΛܗͯ͠ܧଓ։࠵ ॳճͷࢀՃऀ͕ίʔνͱͯ͠ࢀՃ Ռ
IUUQCMPHQBQJQVQFQVKJJDPN தଜҮ͞Μ!TPNBMJ IUUQTHJUIVCDPN:BZPJ,BSVUB IUUQXXXGBDFCPPLDPNZBZPJUBLFNVSB (VONB3VCZ,BJHJ !TIPLPMBUFEBZ
3BJMT5FSBLPZB IUUQSBJMTUFSBLPZBJP
ֶੜ͚ͨ3BJMTֶशϫʔΫγϣοϓ ݄ʹ౦ژʹͯୈճɺͦͷޙ݄ʹ։࠵ɻ࣍ճ݄ʹ։࠵ɻ ࢀՃऀʙਓ ֶੜࣾձਓ ɺࢣൣ ίʔν ਓ ݱࡏಛʹߴઐͷֶੜɾଔۀੜΛରʢߴઐΧϯϑΝϨϯείϛϡχςΟͱڞ࠵ʣ ࢀՃऀશࠃ͔Β 3BJMTࣉࢠ
ߴઐߴߍ େʹ͋ͨΔؒͷڭҭػؔ ʙࡀ ߴઐ ใܥͷֶՊ Ͱϓϩάϥϛϯάͷ࣮शΛଟ͘ͷ࣌ؒΛ͔͚ͯऔΓΉ ͔͠͠8FCٕज़ͷߨٛɺ3VCZͷߨٛগͳֶ͍ߍ͕΄ͱΜͲ ࠷ઌͷ8FCٕज़ΛֶͿػձΛͭ͘Γ͍ͨ !
ڭ৬һ͚ͨϫʔΫγϣοϓΛ։࠵͢Δ͜ͱඪ ಠཱߦ๏ਓࠃཱߴઐֶߍػߏڠྗΛ͓ئ͍ ࢣൣͷߍ࿈བྷ 3BJMTࣉࢠͷ։࠵ಈػ
Ͱߦ͏ϫʔΫγϣοϓ ! 3BJMT(JSMTࢿྉ େֶߨٛग़ு൛ (JU)VC1VMM3FRVFTUಓ ίʔυେتར ༰
؆୯ͳ3BJMTΞϓϦΛࢣൣ͕༻ҙ͓ͯ͘͠ ͦ͜ػೳՃ͢ΔܗͰࢀՃऀQVMMSFRVFTU ػೳ Ճئ͍ Λ͢Δ ࢣൣͦΕΛ֬ೝ͠ɺίʔυϨϏϡʔΛ͠ɺϚʔδ͢Δ (JU)VC1VMM3FRVFTUಓ
ૂ͍ ؆୯ͳػೳΛ࣮͠ɺ3BJMTͰͷ։ൃΛ࣮ફ ࢣൣ͕ώϯτΛग़ͨ͠ΓɺҰॹʹ։ൃͨ͠Γ͢Δ 044ߩݙʹॏཁͳٕज़(JUIVCQVMMSFRVFTUΛ࣮ମݧ ා͞Λͳ͘͢ɺ׳ΕΔ
(JU)VC1VMM3FRVFTUಓ $PNNJU-PH ࢣൣ͕ϕʔεʹͳΔ ΞϓϦΛ࡞ ࢀՃऀ͕৽ػೳ࣮ QVMMSFRVFTUΛૹΔ ࢣൣ͕NFSHF ‑PME ‐OFX
ࢀՃऀͷ QVMMSFRVFTU (JU)VC 1VMM3FRVFTU ಓ
(JU)VC 1VMM3FRVFTU ಓ ࢣൣͷରԠ
ίʔυେتར TFSWJDFECZ!TPSB@I
Βͳ͍ॻ͖ํ͕ग़͖ͯͯʢࢣൣʣษڧʹͳΔ ඞཁʹԠͯ͡ϦϑΝϨϯεΛࢀর͢ΔͳͲ ࢣൣαʔϏεͷ੬ऑੑ୳͠ʹۈ͠Έ͕ͪ ηΩϡϦςΟٕज़ʹ͍ͭͯղઆ ίʔυେتར
Ռ ࣗͰ࡞͍͚ͬͯΔͨΊͷجૅྗशಘ ࢣൣͱͷͭͳ͕Γ ࢀՃऀ͔Βࢣൣ 3BJMTࣉࢠɹ·ͱΊ ඪ ઌੜͷڭҭࢧԉ
IUUQXXXqJDLSDPNQIPUPTJHBJHB IUUQXXXqJDLSDPNQIPUPTITCU 3BJMT(JSMT 3BJMTࣉࢠ Ұڮେֶߨٛ-FDUVSFJO)JUPUTVCBTIJ6OJW ڞ௨ͷ՝
͓קΊͷ3BJMTڥߏஙํ๏ ͪ͜Βͷϖʔδ͕·ͱ·͍͔ͬͯͯΓ͍͢Ͱ͢ɻIUUQSBJMTHJSMTKQJOTUBMM 8JOEPXT3BJMT*OTUBMMFSIUUQSBJMTJOTUBMMFSPSH 8JOͰڥࠩʹΑΔτϥϒϧ΄΅ͳ͍ OBUJWFFYUFOTJPOHFNͷΠϯετʔϧͰҰ෦ࣦഊ͢Δͷ͋Δ .BD3BJMT*OTUBMMFSPSSCFOWIPNFCSFX τϥϒϧ͕ى͖Δͷ.BD͕ଟ͍
࣋ͪࠐΈ࣌ͷঢ়ଶ͕·ͪ·ͪ ! Α͘ى͖Δτϥϒϧ &YFD+43VOUJNF&SSPS 0QFO44-ূ໌ॻظݶΕIUUQRJJUBDPNTBUPDPDPBJUFNTCEBEFFGG τϥϒϧରԠ͜ͷϖʔδʹࣄྫ͕ू·͍ͬͯ·͢ɻIUUQTHJUIVCDPNSBJMTHJSMTKQSBJMTHJSMTKQHJUIVCDPNXJLJ5SPVCMFTIPPUJOH ՝3BJMT։ൃڥߏஙͷ͠͞
τϥϒϧൃੜ࣌ʹରԠͰ͖ΔਓͱҰॹʹڥߏங ! 7JSUVBM.BDIJOF-JOVY 7JSUVBM#PY8JO.BD-JOVYڥͰແྉͰ͑Δ7.ڥ ༻ҙ͕ͨ͠ɺࢲͷߨٛͷֶੜ͋·Γͬͯ͘Εͳ͔ͬͨ 3BJMTΠϯετʔϧࡁ*NBHFΛެ։͍ͯ͠·͢ɻIUUQTHJUIVCDPNJHBJHBIJUPUTVCBTIJSVCZ
! $4" /JGUZ1BB4 IUUQDTBOJGUZDPN 8FCϒϥβ্͚ͩͰ3BJMTΞϓϦͷ։ൃ͕Մೳ ݱࡏ3BJMTରԠ ڥߏஙͷରԠ
ڞ௨ͷϙΠϯτ
ϙΠϯτɿ ΰʔϧະདྷʹઃఆ
ΰʔϧͲ͔͜ʁ ֶߍͷ߹ ݄ ߨٛ։࢝ ݄ લظमྃ ݄ ޙظमྃ
ֶੜ ݄ ߨٛ։࢝ ݄ લظमྃ ݄ ޙظमྃ ͦͷઌʹ͘͘ଓ͘ະདྷ͕ ࣾձਓ ܧଓ͢Δɺ͍͔ͭࢥ͍ग़ͯ͠Β͏
ΰʔϧະདྷʹઃఆ
ͨͷ͠͞ ࣮ࡍʹಈ͔ͯ͠ޭମݧ ͨͷ͍͠งғؾ ܧଓ͢Δڥ ࣭Ͱ͖Δਓɺ͕ؒͦʹ͍Δ ܧଓ͢Δɺ͍͔ͭࢥ͍ग़ͯ͠Β͏ͨΊʹ
ͨͷ͠͞ɺޭମݧ ఱؾ༧ใ 1VTI௨ ! ࣗͷͨΊͷ ϓϩάϥϛϯά ! 3VCZͰߦఔ ࣌ؒఔͰ࡞Մೳ IUUQTTQFBLFSEFDLDPNJHBJHBJQIPOFQVTIOPUJpDBUJPO
3BJMT(JSMT ը૾ߘ ϛχϒϩάΞϓϦ ! ͷϫʔΫγϣοϓ Ͱ࡞ɺ1BB4Ͱެ։
ܧଓ͢Δڥ GBDFCPPLHSPVQ ࣭ɾ૬ஊ ! ܧଓ։࠵ ! ͭͳ͕Γ ίʔνͱ ࢀՃऀͱ
ϙΠϯτɿ ॴ͕͋Δͱ͍͏͜ͱͷॏཁੑ
ॴ͕͋Δ͜ͱॏཁ ࠷ॳͷͱ͔͔ͬΓ͕Ұ൪͍͠ ڥߏங࣌ͷτϥϒϧ ษڧํ๏ΛΔ
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