Gitはなぜ難しいのか

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(JU͸ͳͥ೉͍͠ͷ͔ #kraygit01 @irohiroki

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ࠓ೔ͷτϐοΫε ϒϥοΫϘοΫεΛղ͖໌͔͢ ίϛοτ ϒϥϯν lΠϯσοΫεzͬͯԿͳͷ ฆΒΘ͍͠ίϚϯυʹ͍ͭͯ

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Ͳ͏ͯ͠όʔδϣϯ؅ཧ͢Δͷʁ Ҏલͷঢ়ଶʹ໭͍ͨ͠ มߋ఺Λ஌Γ͍ͨ ୭͕ɺͳͥมߋͨ͠ͷ͔ه࿥͍ͨ͠

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ԿΛ؅ཧ͢Δʁ ͍ͭ ୭͕ ͳͥ ͲͷϦϏδϣϯΛϕʔεʹ ͲΜͳมߋΛ͔ͨ͠

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ԿΛ؅ཧ͢Δʁ ͍ͭ ୭͕ ͳͥ ͲͷϦϏδϣϯΛϕʔεʹ ͲΜͳมߋΛ͔ͨ͠ ˠ·ͱΊͯlίϛοτzͱ͍͏σʔλʹ

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lͲΜͳมߋΛͨ͠z σΟϨΫτϦͱϑΝΠϧͷߏ੒Λอଘ lπϦʔzͱlϒϩϒz ίϛοτ͸ࠜຊͷπϦʔΛه࿥

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ͳͥϕʔεʹͨ͠ϦϏδϣϯʢ਌ʣ͕ ඞཁʁ ൪߸ Ͱ͸μϝͳͷʁ ࢬ෼͔Ε͕ՄೳʹͳΔ ̎ͭҎ্ͷ਌Λ࣋ͭʢʹϚʔδʣ΋Մೳʹ

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ίϛοτ ɾ࣌ࠁ ɾίϛολʔ ɾίϝϯτ ɾπϦʔ ɾ਌

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ίϛοτ ɾ࣌ࠁ ɾίϛολʔ ɾίϝϯτ ɾπϦʔ ɾ਌ ίϛοτ ɾ࣌ࠁ ɾίϛολʔ ɾίϝϯτ ɾπϦʔ ɾ਌

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ίϛοτ ɾ࣌ࠁ ɾίϛολʔ ɾίϝϯτ ɾπϦʔ ɾ਌ ίϛοτ ɾ࣌ࠁ ɾίϛολʔ ɾίϝϯτ ɾπϦʔ ɾ਌ πϦʔ ɾϒϩϒ ɾπϦʔ ϒϩϒ πϦʔ ɾϒϩϒ ϒϩϒ πϦʔ ɾϒϩϒ ɾπϦʔ ϒϩϒ πϦʔ ɾϒϩϒ ϒϩϒ

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ίϛοτ ɾ࣌ࠁ ɾίϛολʔ ɾίϝϯτ ɾπϦʔ ɾ਌ ίϛοτ ɾ࣌ࠁ ɾίϛολʔ ɾίϝϯτ ɾπϦʔ ɾ਌ πϦʔ ɾϒϩϒ ɾπϦʔ ϒϩϒ πϦʔ ɾϒϩϒ ϒϩϒ πϦʔ ɾϒϩϒ ɾπϦʔ ϒϩϒ πϦʔ ɾϒϩϒ ϒϩϒ 1st line 1st line 2nd line

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Ծઆɿ lίϛοτz͕ந৅త͔ͩΒ೉͍͠ʁ ίϛοτ͸ˣ͕ॻ͔ΕͨϑΝΠϧʹ͗͢ͳ͍ ίϛοτ࣌ࠁʗίϛολʔʗίϝϯτʗ਌ʗπϦʔͷ໊લʗͳͲ πϦʔ΍ϒϩϒ΋ϑΝΠϧ ίϛοτɾπϦʔɾϒϩϒΛ·ͱΊͯlΦϒδΣΫτzͱݺͼ·͢

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ΦϒδΣΫτͷಾΛ໌͔͢ ΦϒδΣΫτͷछྨ΍௕͞Λද͢ϔομΛ෇͚Δ ϋογϡʢ4)"ʣΛܭࢉ͢Δ ѹॖ͢Δʢ%FqBUFʣ HJUPCKFDUTҎԼʹ֨ೲ͢Δɻ͜ͷͱ͖ˢͷϋογϡΛ໊લʹ

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HJU͸ϑΝΠϧૢ࡞ʹ͗͢ͳ͍ DPNNJUˠHJUPCKFDUTʹอଘ QVMMˠϦϞʔτ͔ΒϩʔΧϧʹϑΝΠϧΛίϐʔ ͳͲʜ

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HJU͸ϑΝΠϧૢ࡞ʹ͗͢ͳ͍ DPNNJUˠHJUPCKFDUTʹอଘ QVMMˠϦϞʔτ͔ΒϩʔΧϧʹϑΝΠϧΛίϐʔ ͳͲʜ ҙ֎ͱ୯७

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ผ໊Ͱ͞Βʹศར DCGDGFBFFDFGFC lϒϥϯνzʹίϛοτͷ࿈ͳΓ lϒϥϯν໊zʹϒϥϯνͷઌ୺ͷίϛοτͷผ໊ ίϛοτΛੵΉͱ৽ͨͳઌ୺ʹҠಈ͢Δ

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ϒϥϯν໊͸ઌ୺ͷίϛοτͷผ໊ ίϛοτ ίϛοτ ϒϥϯν

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ϒϥϯν໊͸ઌ୺ͷίϛοτͷผ໊ ίϛοτ ίϛοτ ϒϥϯν ίϛοτ

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ϒϥϯν໊͸ઌ୺ͷίϛοτͷผ໊ ίϛοτ ίϛοτ ίϛοτ

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ϒϥϯν໊͸ઌ୺ͷίϛοτͷผ໊ ίϛοτ ίϛοτ ίϛοτ ϒϥϯν

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Ծઆɿ lϒϥϯνz͕ந৅త͔ͩΒ೉͍͠ʁ HJUSFGTIFBETσΟϨΫτϦʹϒϥϯν໊ͷϑΝΠϧ͕͋Δ ίϛοτͷຊ໊ʢ4)"ʣ͕ॻ͔ΕͯΔ

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Ծઆɿ lϒϥϯνz͕ந৅త͔ͩΒ೉͍͠ʁ HJUSFGTIFBETσΟϨΫτϦʹϒϥϯν໊ͷϑΝΠϧ͕͋Δ ίϛοτͷຊ໊ʢ4)"ʣ͕ॻ͔ΕͯΔ ͘͢͝୯७ͳϑΝΠϧ

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ΦϒδΣΫτͷผ૳ ϦϞʔτϦϙδτϦ ϩʔΧϧϦϙδτϦ ΠϯσοΫε ϫʔΫπϦʔ

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ΦϒδΣΫτͷผ૳ ϦϞʔτϦϙδτϦ ϩʔΧϧϦϙδτϦ ΠϯσοΫε ϫʔΫπϦʔ ڞ༗ (JUIVCͱ͔

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ΦϒδΣΫτͷผ૳ ϦϞʔτϦϙδτϦ ϩʔΧϧϦϙδτϦ ΠϯσοΫε ϫʔΫπϦʔ ࣗ෼༻ HJU ڞ༗ (JUIVCͱ͔

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ΦϒδΣΫτͷผ૳ ϦϞʔτϦϙδτϦ ϩʔΧϧϦϙδτϦ ΠϯσοΫε ϫʔΫπϦʔ ࣗ෼༻ HJU ڞ༗ (JUIVCͱ͔ ࡞ۀத

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ΦϒδΣΫτͷผ૳ ϦϞʔτϦϙδτϦ ϩʔΧϧϦϙδτϦ ΠϯσοΫε ϫʔΫπϦʔ ࣗ෼༻ HJU ڞ༗ (JUIVCͱ͔ ࡞ۀத ϩʔΧϧϦϙͱϫʔΫ πϦʔͷؒͷόοϑΝ

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͍ΜͰͬ͘͢ʁ ϩʔΧϧϦϙδτϦͱϫʔΫπϦʔͷؒʹ͋Δίϛ οτ̍ݸ෼ͷόοϑΝ ίϛοτ͢Δ࣌ɺΠϯσοΫεͷ಺༰͕ه࿥͞ΕΔ ίϛοτ࡞੒Λศརʹ͢Δ͘͠Έ ϫʔΫπϦʔʹࢪͨ͠มߋͷ͏ͪɺҰ෦ΛೖΕΔʗ໭͢ ίϛοτ͍ͨ͠ঢ়ଶΛগͣͭ͠࡞Δ ͖ͨͳ͍ͱ͜Ζ͸ϫʔΫπϦʔʹ࢒ͨ͠··

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ϦϞʔτϗετ ϦϞʔτϦϙδτϦ ϩʔΧϧϗετ ϦϞʔτϦϙδτϦͷίϐʔ ϩʔΧϧϦϙδτϦ ΠϯσοΫε ϫʔΫπϦʔ

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DIFDLPVU HJUDIFDLPVUίϛοτ HJUDIFDLPVUϒϥϯν HJUDIFDLPVUϑΝΠϧ HJUDIFDLPVUίϛοτϑΝΠϧ

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DIFDLPVU HJUDIFDLPVUίϛοτ HJUDIFDLPVUϒϥϯν HJUDIFDLPVUϑΝΠϧ HJUDIFDLPVUίϛοτϑΝΠϧ ϩʔΧϧϦϙˠϫʔΫπϦʔ

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DIFDLPVU HJUDIFDLPVUίϛοτ HJUDIFDLPVUϒϥϯν HJUDIFDLPVUϑΝΠϧ HJUDIFDLPVUίϛοτϑΝΠϧ ϒϥϯνҠಈ ϩʔΧϧϦϙˠϫʔΫπϦʔ

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DIFDLPVU HJUDIFDLPVUίϛοτ HJUDIFDLPVUϒϥϯν HJUDIFDLPVUϑΝΠϧ HJUDIFDLPVUίϛοτϑΝΠϧ ϒϥϯνҠಈ ϩʔΧϧϦϙˠϫʔΫπϦʔ ΠϯσοΫεˠϫʔΫπϦʔ

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DIFDLPVU HJUDIFDLPVUίϛοτ HJUDIFDLPVUϒϥϯν HJUDIFDLPVUϑΝΠϧ HJUDIFDLPVUίϛοτϑΝΠϧ ϒϥϯνҠಈ ϩʔΧϧϦϙˠϫʔΫπϦʔ ΠϯσοΫεˠϫʔΫπϦʔ ϩʔΧϧϦϙˠϫʔΫπϦʔ ʢࢦఆͨ͠ϑΝΠϧͷΈʣ

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DIFDLPVUC HJUDIFDLPVUϒϥϯν HJUDIFDLPVUC৽ϒϥϯνϒϥϯν·ͨ͸ίϛοτ ϒϥϯνΛҠಈ ίϛοτ NBTUFS ίϛοτ ίϛοτ UPQJD

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DIFDLPVUC HJUDIFDLPVUϒϥϯν HJUDIFDLPVUC৽ϒϥϯνϒϥϯν·ͨ͸ίϛοτ ϒϥϯνΛ࡞ͬͯҠಈ ϒϥϯνΛҠಈ ίϛοτ NBTUFS ίϛοτ ίϛοτ UPQJD

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DPNNJU HJUDPNNJU HJUDPNNJUB

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DPNNJU HJUDPNNJU HJUDPNNJUB ΠϯσοΫεˠϩʔΧϧϦϙ

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DPNNJU HJUDPNNJU HJUDPNNJUB ΠϯσοΫεˠϩʔΧϧϦϙ ϫʔΫπϦʔˠϩʔΧϧϦϙ

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BEESN HJUBEEϑΝΠϧ HJUSNϑΝΠϧ HJUSNDBDIFEϑΝΠϧ

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BEESN HJUBEEϑΝΠϧ HJUSNϑΝΠϧ HJUSNDBDIFEϑΝΠϧ ϫʔΫπϦʔˠΠϯσοΫε

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BEESN HJUBEEϑΝΠϧ HJUSNϑΝΠϧ HJUSNDBDIFEϑΝΠϧ ϫʔΫπϦʔͱΠϯσοΫε͔Βফ͢ ϫʔΫπϦʔˠΠϯσοΫε

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BEESN HJUBEEϑΝΠϧ HJUSNϑΝΠϧ HJUSNDBDIFEϑΝΠϧ ϫʔΫπϦʔͱΠϯσοΫε͔Βফ͢ ΠϯσοΫε͔Βফ͢ ϫʔΫπϦʔˠΠϯσοΫε

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SFTFU HJUSFTFUTPGUίϛοτ HJUSFTFUίϛοτ HJUSFTFUIBSEίϛοτ ίϛοτ NBTUFS ίϛοτ ίϛοτ

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SFTFU HJUSFTFUTPGUίϛοτ HJUSFTFUίϛοτ HJUSFTFUIBSEίϛοτ ϒϥϯνͷઌ୺Λมߋ ίϛοτ NBTUFS ίϛοτ ίϛοτ

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SFTFU HJUSFTFUTPGUίϛοτ HJUSFTFUίϛοτ HJUSFTFUIBSEίϛοτ ϒϥϯνͷઌ୺Λมߋ ίϛοτ ίϛοτ ίϛοτ

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SFTFU HJUSFTFUTPGUίϛοτ HJUSFTFUίϛοτ HJUSFTFUIBSEίϛοτ ϒϥϯνͷઌ୺Λมߋ ίϛοτ ίϛοτ ίϛοτ NBTUFS

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SFTFU HJUSFTFUTPGUίϛοτ HJUSFTFUίϛοτ HJUSFTFUIBSEίϛοτ ϒϥϯνͷઌ୺Λมߋ ϩʔΧϧϦϙˠΠϯσοΫε ίϛοτ ίϛοτ ίϛοτ NBTUFS

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SFTFU HJUSFTFUTPGUίϛοτ HJUSFTFUίϛοτ HJUSFTFUIBSEίϛοτ ϒϥϯνͷઌ୺Λมߋ ϩʔΧϧϦϙˠΠϯσοΫε ϩʔΧϧϦϙˠϫʔΫπϦʔ ίϛοτ ίϛοτ ίϛοτ NBTUFS

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GFUDIQVMMQVTI HJUGFUDI HJUQVMM HJUQVTI

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GFUDIQVMMQVTI HJUGFUDI HJUQVMM HJUQVTI ϦϞʔτϦϙˠϦϞʔτϦϙͷίϐʔ

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GFUDIQVMMQVTI HJUGFUDI HJUQVMM HJUQVTI ϦϞʔτϦϙˠϦϞʔτϦϙͷίϐʔ ϦϞʔτϦϙˠϫʔΫπϦʔʹϚʔδʢʣ

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GFUDIQVMMQVTI HJUGFUDI HJUQVMM HJUQVTI ϦϞʔτϦϙˠϦϞʔτϦϙͷίϐʔ ϦϞʔτϦϙˠϫʔΫπϦʔʹϚʔδʢʣ ϩʔΧϧϦϙˠϦϞʔτϦϙ

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·ͱΊ ίϛοτ΍ϒϥϯνͷ࣮ମΛ஌Δͱҙ֎ͱ୯७ ίϚϯυΛཧղ͢Δʹ͸ΦϒδΣΫτͷҠಈʢಛʹ ΠϯσοΫεʣΛҙࣝ͢Δ

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Questions? ϒϥϯνૢ࡞ฤʢSFCBTFNFSHFDIFSSZQJDLʣ͕ ͋ͬͨΒࢀՃ͍ͨ͠ํʁ ԋश෇͖൒೔ʢ౔೔ʣͷແྉίʔε͕͋ͬͨΒࢀՃ ͍ͨ͠ํʁ ࣭͝໰ͳͲ

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͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠ɻ Presented by @irohiroki

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ิ଍ɿ)&"% ͦͷ࣌ϕʔεʹͯ͠Δίϛοτ HJU)&"% ϒϥϯν໊·ͨ͸ຊ໊ʢ4)"ʣ͕ॻ͔ΕͯΔ ϒϥϯνͱͷҧ͍ɿ ৗʹl)&"%zͱݺ͹ΕΔ ಛఆͷίϛοτͷ࿈ͳΓΛࢦ͞ͳ͍ ϒϥϯνͷ్தΛࢦ͢͜ͱ΋Ͱ͖Δ