Git ハンズオン Part 1 / Git Handson Part 1

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Git ϋϯζΦϯ Part 1 # גࣜձࣾΤΞʔΫϩʔθοτ ࣾ಺ษڧձ Vol.3 @takasp 2018೥9݄25೔

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͜ͷࢿྉ͸ɺ ɾGit ͕ΠϯετʔϧࡁΈͰ͋Δ͜ͱ ɾGitHub ͷΞΧ΢ϯτΛ͍࣋ͬͯΔ͜ͱ Λલఏͱ͍ͯ͠·͢ɻ

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࿩͢͜ͱ • Git ͷ֓ཁ • Git ͷίϚϯυ • Git ͷίϚϯυΛ࢖ͬͨϋϯζΦϯ

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ຊ೔ѻ͏ Git ίϚϯυ • git add • git commit • git push • git branch • git status • git merge • git init • git log • git clone • git pull • git diff • git conﬁg • git checkout

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Git ͷ֓ཁ

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Git ͱ͸ • มߋཤྺΛه࿥ɾ௥੻͢ΔͨΊͷ  ෼ࢄܕόʔδϣϯ؅ཧγεςϜʢVCSʣ • Linux Χʔωϧͷιʔείʔυ؅ཧʹ  ༻͍ΔͨΊʹϦʔφεɾτʔόϧζʹΑͬͯ  ։ൃ͞Εͨ

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ϑΝΠϧΛ؅ཧ͢Δ • ԿΛ؅ཧ͍ͨ͠ͷ͔ʁ • ୭͕ʁ • ͍ͭʁ • ͲͷϑΝΠϧΛʁ • ԿΛมߋͨ͠ʁ JOEFY@࠷ऴ൛IUNM JOEFY@࠷ऴ൛IUNM JOEFY@OFXIUNM JOEFY@OFXIUNM JOEFY@IUNM JOEFY@IUNM JOEFY@IUNM JOEFYIUNM

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Git Λ࢖ͬͨྲྀΕ 1 )5.-ϑΝΠϧ Λ௥Ճ commit1 HEAD ద੾ͳίϛοτ  ϝοηʔδΛ͚ͭΔ HEAD:  ݱࡏΛࢦࣔ͢͠࡞ۀঢ়ଶ commit:  มߋͷཤྺΛه࿥ͨ͠΋ͷ

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Git Λ࢖ͬͨྲྀΕ 1 2 )5.-ϑΝΠϧ Λ௥Ճ JNHλάΛ௥Ճ commit1 commit2 HEAD ίϛοτΛ௥Ճͨ͠ ίϛοτΛ௥Ճ͢Δͱ  HEAD͕ਐΉ

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Git Λ࢖ͬͨྲྀΕ 1 2 3 )5.-ϑΝΠϧ Λ௥Ճ JNHλάΛ௥Ճ UJUMFΛมߋ commit1 commit2 commit3 HEAD ίϛοτΛ௥Ճͨ͠ ߋʹHEAD͕ਐΉ

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Git Λ࢖ͬͨྲྀΕ 1 2 3 4 )5.-ϑΝΠϧ Λ௥Ճ JNHλάΛ௥Ճ UJUMFΛมߋ DTTΛमਖ਼ HEAD commit1 commit2 commit3 commit4 ίϛοτΛաڈʹ ḪΔ͜ͱ΋Ͱ͖Δ

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ϒϥϯν 1 2 3 4 merge merge:  ϒϥϯνಉ࢜Λ ݁߹͢Δػೳ 2 5 feature ϒϥϯν΍ ﬁx ϒϥϯν ϝΠϯͷϒϥϯν branch:  ཤྺΛࢬ෼͔Εͤͯ͞ ه࿥͢Δػೳ

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෼ࢄܕͱूதܕ தԝϦϙδτϦ ϦϞʔτϦϙδτϦ ूதܕ ෼ࢄܕ ొ࿥ ొ࿥ औಘ औಘ ొ࿥ औಘ ίϛοτ ొ࿥ औಘ ίϛοτ ϩʔΧϧ  ϦϙδτϦ ϩʔΧϧ  ϦϙδτϦ

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ϦϙδτϦ ϦϞʔτϦϙδτϦ ϩʔΧϧϦϙδτϦ ϩʔΧϧϦϙδτϦ ϩʔΧϧϦϙδτϦ ϦϞʔτϦϙδτϦʹ  ࡞ۀऀ͕ΞΫηεͯ͠ɺ ϩʔΧϧϦϙδτϦΛ  ௨ͯ͠΍ΓͱΓ͢Δ ϦϙδτϦ:  όʔδϣϯ؅ཧΛ ߦ͏৔ॴ

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ओཁͳ Git ϗεςΟϯάαʔϏε

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ίϚϯυϥΠϯͰ֮͑Α͏ • ࠷ऴతʹ GUI Λ࢖ͬͯ΋ྑ͍͕ɺ  ಺෦Ͱ࢖ΘΕΔίϚϯυͷҙຯ͕෼͔ͬͯ  ࢖Θͳ͍ͱɺԿΛ͢Δͷ͔෼͔Γʹ͍͘ • ಺෦Ͱ࢖ΘΕΔίϚϯυͱ GUI ͷ໊শ͕  ҟͳΔ͜ͱ͕͋Δ • ωοτͰௐ΂ΔͱίϚϯυ͕ग़ͯ͘Δ

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࠷௿ݶ͓͖͍֮͑ͯͨ  Linux ίϚϯυ • pwd (print working directory) : ݱࡏͷσΟϨΫτϦΛදࣔ͢Δ • cd (change directory) : ଞͷσΟϨΫτϦʹҠಈ͢Δ • ls (list) : ݱࡏͷσΟϨΫτϦͷσΟϨΫτϦ΍ϑΝΠϧΛදࣔ͢Δ • mkdir (make directory) : σΟϨΫτϦΛ࡞੒͢Δ • mv (move) : ϑΝΠϧΛҠಈ͢Δ • cp (copy) : ϑΝΠϧΛίϐʔ͢Δ • rm (remove) : ϑΝΠϧ΍σΟϨΫτϦΛ࡟আ͢Δ

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ࣄલ४උ

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git config Ͱઃఆ͠Α͏ • Ϣʔβʔ৘ใΛઃఆ͢Δ • editor ͷઃఆʢVisual Studio Code Ͱىಈ͢Δྫʣ • ઃఆΛ֬ೝ͢Δ  git config --global user.name takasp  git config --global user.email [email protected] git config --global core.editor "code --wait" git config --global --list

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ϩʔΧϧϦϙδτϦΛ࡞੒͢Δ • λʔϛφϧ͔Β೚ҙͷσΟϨΫτϦΛ࡞੒͠ ͯҠಈ͢Δ    • ϩʔΧϧϦϙδτϦΛ࡞੒͢Δ mkdir git-handson01  cd git-handson01 git init

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ίϛοτ͢ΔྲྀΕΛ֮͑Α͏

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ίϛοτ͢ΔྲྀΕ ϩʔΧϧϦϙδτϦ ϩʔΧϧϦϙδτϦʹ ίϛοτ͢Δ εςʔδʹҠಈ͢Δ ϑΝΠϧΛมߋ͢Δ

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ϑΝΠϧΛ࡞੒͢Δ • ҎԼͷςΩετΛؚΉ README.md ϑΝΠϧ Λ࡞੒͢Δ # Git  ॳΊͯͷ Git ϑΝΠϧͰ͢ɻ ൒֯εϖʔε 2 ݸΛ  ޙΖʹೖΕ͓ͯ͘ͱվߦʹͳΔ  (markdown ه๏)

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ঢ়ଶΛ֬ೝ͢Δ • git status ίϚϯυͰݱࡏͷঢ়ଶΛ֬ೝ͢Δ • ͢ΔͱҎԼͷΑ͏ͳද͕ࣔ͞ΕΔ git status README.md ϑΝΠϧ͕௥੻͞Ε͍ͯͳ͍ ݱࡏ master ϒϥϯνʹ͍Δ ࠔͬͨΒ͙͢ʹHJUTUBUVTΛ͢Δ͜ͱʂ  ݱࡏʹର͢Δඞཁͳ͜ͱΛڭ͑ͯ͘ΕΔ

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௥Ճͨ͠ϑΝΠϧΛεςʔδʹ Ҡಈ͢Δ • git add ίϚϯυͰϑΝΠϧΛ௥Ճ͢Δ git add README.md εςʔδʹҠಈ͍ͨ͠ ϑΝΠϧ໊Λࢦఆ͢Δ

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ঢ়ଶΛ֬ೝ͢Δ • ࠶ͼ git status ίϚϯυͰঢ়ଶΛ֬ೝ͢Δ • ͢ΔͱҎԼͷΑ͏ͳද͕ࣔ͞ΕΔ git status README.md ϑΝΠϧ͕ίϛοτର৅ʹͳͬͨ

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ίϛοτ͢Δ • git commit ίϚϯυͰίϛοτ͢Δ git commit -m 'READMEΛ௥Ճͨ͠' NΦϓγϣϯ͸ίϛοτϝοηʔδΛࢦఆ͢Δ NΦϓγϣϯΛࢦఆ͠ͳ͍৔߹͸ɺ  DPSFFEJUPSͰઃఆͨ͠ΤσΟλΛىಈ͢Δ ίϛοτ  ϝοηʔδΛ  ࢦఆ͢Δ

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ঢ়ଶΛ֬ೝ͢Δ • ࠶ͼ git status ίϚϯυͰঢ়ଶΛ֬ೝ͢Δ • ͢ΔͱҎԼͷΑ͏ͳද͕ࣔ͞ΕΔ git status ίϛοτର৅͕ͳ͘ͳͬͨ͜ͱ͕Θ͔Δ

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ίϛοτΛ֬ೝ͢Δ • git log ίϚϯυͰίϛοτϩάΛ֬ೝ͢Δ • ͢ΔͱҎԼͷΑ͏ͳද͕ࣔ͞ΕΔ git log ίϛοτϝοηʔδͱ  ୭͕͍ͭίϛοτ͔͕ͨ͠Θ͔Δ

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࠶౓ϑΝΠϧΛมߋ͢Δ • README.md ʹҎԼͷςΩετΛ௥Ճ͢Δ # Git  ॳΊͯͷ Git ϑΝΠϧͰ͢ɻ   ଓ͍ͯ௥ՃͷίϛοτΛߦ͍·͢ɻ ௥ՃߦͷςΩετ ൒֯εϖʔε 2 ݸΛ  ޙΖʹೖΕΔ

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ࠩ෼Λ֬ೝ͢Δ • git diff ίϚϯυͰࠩ෼Λ֬ೝ͢Δ Ҏલͷ README.md ͱ ݱࡏมߋͨ͠ README.md ͷࠩ෼Λදࣔͯ͘͠ΕΔ

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࠶౓εςʔδʹ௥Ճͯ͠  ίϛοτ͢Δ • ࠶౓ git add ίϚϯυͰεςʔδʹ௥Ճ͠ɺ git commit ίϚϯυͰίϛοτ͢Δ git add README.md  git commit -m 'READMEʹίϛοτจΛ௥Ճͨ͠'

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ίϛοτΛ֬ೝ͢Δ • ࠶౓ git log ίϚϯυͰίϛοτϩάΛ  ֬ೝ͢Δ • ͢ΔͱҎԼͷΑ͏ͳද͕ࣔ͞ΕΔ ίϛοτ͕௥Ճ͞Ε͍ͯΔ͜ͱ͕ Θ͔Δ

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git add ίϚϯυͷิ଍ • git add . ͰΧϨϯτσΟϨΫτϦҎԼͷϑΝΠϧશͯ ΛεςʔδʹҠಈ͢Δ  • -A ·ͨ͸ --all ΦϓγϣϯͰมߋͨ͠ϑΝΠϧ΍৽نͰ ࡞੒ͨ͠ϑΝΠϧΛશͯεςʔδʹҠಈ͢Δ • εςʔδʹҠಈ͍ͨ͠ϑΝΠϧΛ֬ೝ͍ͨ͠৔߹͸ɺ git status Ͱ֬ೝ͠ͳ͕Β֤ϑΝΠϧΛҠಈ͢Δͱྑ͍ git add . ϐϦΦυ͸ΧϨϯτσΟϨΫτϦΛҙຯ͢Δ

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git commit ίϚϯυͷิ଍ • git commit . ͰσΟϨΫτϦ഑Լͷط஌ͷ  ϑΝΠϧΛશͯίϛοτ͢Δ   ※ ৽نϑΝΠϧ͸ؚ·ͳ͍ • git commit -a ط஌ͷϑΝΠϧΛશͯίϛοτ͢Δ  ˞ ৽نϑΝΠϧ͸ؚ·ͳ͍ • git commit -am '' Ͱมߋͷ͋ΔϑΝΠϧΛίϛοτ ϝοηʔδ෇͖ͰίϛοτͰ͖Δ

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͜Ε·Ͱͷ·ͱΊ ͦͷ1 • git init : ϩʔΧϧϦϙδτϦΛ࡞੒͢Δ • git add : εςʔδϯάʹϑΝΠϧΛ௥Ճ͢Δ • git commit : ͦͷ࣌఺Λه࿥͢Δ • git diff : ࠩ෼ΛݟΔ • git status : ݱࡏͷঢ়ଶΛݟΔ • git log : ݱࡏͷίϛοτϩάΛݟΔ

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ϒϥϯνΛ࡞੒ͯ͠  Ϛʔδͯ͠ΈΑ͏

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ϒϥϯν࡞੒ͯ͠Ϛʔδ͢ΔྲྀΕ 1 2 3 merge 2 3 task ϒϥϯν master ϒϥϯν

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ϒϥϯνΛ࡞੒͢Δ • git branch ίϚϯυͰϒϥϯνΛ࡞੒͢Δ git branch task1 ࡞੒͍ͨ͠ϒϥϯν໊Λ ࢦఆ͢Δ

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• git branch ίϚϯυͰϒϥϯνΛ֬ೝ͢Δ • ͢ΔͱҎԼͷΑ͏ͳද͕ࣔ͞ΕΔ ࡞੒ͨ͠ϒϥϯνΛ֬ೝ͢Δ git branch task1 ϒϥϯν͕࡞੒͞Ε͍ͯΔ͜ͱ͕Θ͔Δ

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࡞੒ͨ͠ϒϥϯνʹ੾Γସ͑Δ • git checkout ίϚϯυͰϒϥϯνΛ  ੾Γସ͑Δ git checkout task1 ੾Γସ͍͑ͨϒϥϯν໊Λ ࢦఆ͢Δ

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• git branch ίϚϯυͰϒϥϯνΛ֬ೝ͢Δ • ͢ΔͱҎԼͷΑ͏ͳද͕ࣔ͞ΕΔ • ΋͘͠͸ git status ίϚϯυͰ΋֬ೝͰ͖Δ  ੾Γସ͑ͨϒϥϯνΛ֬ೝ͢Δ git branch task1 ϒϥϯν੾ΓସΘ͍ͬͯΔ͜ͱ͕Θ͔Δ task1 ϒϥϯνͰ͋Δ͜ͱ͕Θ͔Δ

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master ϒϥϯνʹ໭Δ • git checkout ίϚϯυͰ master ϒϥϯνʹ  ੾Γସ͑Δ git checkout master master ϒϥϯνΛࢦఆ͢Δ

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ϒϥϯνΛ࡞੒ͯ͠੾Γସ͑Δ • git checkout ίϚϯυͰϒϥϯνΛ࡞੒ͯ͠  ੾Γସ͑Δ git checkout -b task2 ࡞ۀΛ࢝ΊΔͱ͖͸ɺ  checkout ίϚϯυͱ  -b ΦϓγϣϯΛ  Α͘࢖͏ Cࢦఆͨ͠ϒϥϯνΛ࡞੒ͯ͠੾Γସ͑Δ

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ϑΝΠϧΛมߋ͢Δ • README.md ʹҎԼͷςΩετΛ௥Ճ͢Δ # Git  ॳΊͯͷ Git ϑΝΠϧͰ͢ɻ   ଓ͍ͯ௥ՃͷίϛοτΛߦ͍·͢ɻ   ଓ͍ͯϚʔδΛߦ͍·͢ɻ ௥ՃߦͷςΩετ ൒֯εϖʔε 2 ݸΛ  ޙΖʹೖΕΔ

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εςʔδʹ௥Ճͯ͠ίϛοτ͢Δ • git commit -am ίϚϯυͰίϛοτ͢Δ git commit -am 'READMEʹϚʔδจΛ௥Ճͨ͠'

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master ϒϥϯνʹ໭Δ • git checkout ίϚϯυͰ master ϒϥϯνʹ  ੾Γସ͑Δ git checkout master

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master ϒϥϯνʹมߋΛ  Ϛʔδ͢Δ • git merge ίϚϯυͰ master ϒϥϯνʹ  task2 ϒϥϯνΛ౷߹͢Δ git merge task2 ϚʔδݩͷϒϥϯνΛࢦఆ͢Δͱ ݱࡏͷϒϥϯνʹϚʔδ͞ΕΔ

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ίϛοτΛ֬ೝ͢Δ • git log ίϚϯυͰίϛοτϩάΛ֬ೝ͢Δ • ͢ΔͱҎԼͷΑ͏ͳද͕ࣔ͞ΕΔ          task2 ͷίϛοτ͕  ௥Ճ͞Ε͍ͯΔ͜ͱ͕Θ͔Δ

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͜Ε·Ͱͷ·ͱΊ ͦͷ2 • git branch : ϒϥϯνΛ࡞੒ͨ͠Γɺϒϥϯν Λ֬ೝͨ͠Γ͢Δ • git checkout : ϒϥϯνΛ੾Γସ͑Δ • git merge : ϒϥϯνಉ࢜ΛϚʔδ͢Δ

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ϦϞʔτϦϙδτϦͱ  ࿈ܞͯ͠ΈΑ͏

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ϦϞʔτϦϙδτϦͱ࿈ܞ͢ΔྲྀΕ ϩʔΧϧϦϙδτϦ ϦϞʔτϦϙδτϦ ϓογϡ ϓϧ ϩʔΧϧϦϙδτϦʹ ίϛοτ͢Δ

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ϦϞʔτϦϙδτϦΛ࡞੒͢Δ • GitHub ͷτοϓϖʔδʹΞΫηεͯ͠ɺNew repository ͔ΒϦϙδτϦΛ࡞੒͢Δ New repository Λ  ΫϦοΫ

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Create repository Λ  ΫϦοΫ git-handson ͱ  ೖྗ

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push ίϚϯυΛ  ίϐʔͯ͠λʔϛφϧ  ͔Β࣮ߦ͢Δ 

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push ͯ͠ϒϥ΢βΛ ߋ৽͢Δͱϓογϡ͕ ׬͍ྃͯ͠Δ

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git pull • νʔϜ։ൃ͍ͯ͠Δ৔߹ʹɺϦϞʔτϦϙδτϦ͕  ߋ৽͞ΕΔͷͰมߋΛऔΓࠐΉͨΊʹ git pull ίϚϯυͰ ϦϞʔτϦϙδτϦ͔ΒϩʔΧϧϦϙδτϦʹมߋΛ  औΓࠐΉ࣌ʹ࢖༻͢Δ  ˞ checkout ͢Δͱ͖͸ݱࡏͷϒϥϯνΛݩʹϒϥϯνΛ ࡞੒͢ΔͷͰ git pull Λͯ͠࠷৽ʹ͓ͯ͘͠ඞཁ͕͋Δ    git pull origin master origin : ϦϞʔτϦϙδτϦͷผ໊

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git clone • ϦϞʔτϦϙδτϦ͕࡞੒͞Ε͍ͯΔ৔߹ʹ git clone ίϚϯυͰϦϞʔτϦϙδτϦΛ ϩʔΧϧʹऔಘ͢Δ࣌ʹ࢖༻͢Δ  git clone https://github.com/takasp/example.git ϦϙδτϦͷ URL Λࢦఆ͢Δ

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GitHub Ͱͷ࣮ࡍͷ࡞ۀϑϩʔ master ϒϥϯν feature ϒϥϯνͳͲ ᶃ pull ͯ͠  ࠷৽ʹ͢Δ ᶅ ίϛοτ͢Δ ᶆ GitHub ʹ  push ͢Δ ᶄ checkout ͢Δ ᶇ Pull Request Λ౤͛Δ NBTUFSϒϥϯνΛ  ࠷৽ʹͨ͠ঢ়ଶͰ  NBTUFSϒϥϯν͔Β  DIFDLPVU͠ͳ͍ͱ  ݹ͍··ͳͷͰ஫ҙ

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͜Ε·Ͱͷ·ͱΊ ͦͷ3 • git push : ϦϞʔτϦϙδτϦʹϓογϡ͢Δ • git pull : ϦϞʔτϦϙδτϦ͔ΒมߋΛऔಘ ͢Δ • git clone : ϦϞʔτϦϙδτϦ͔ΒϩʔΧϧʹ ϦϙδτϦΛऔಘ͢Δ

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ԋश

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ԋश • άϧʔϓΛ࡞Γ·͢ • νʔϜ಺ͷҰਓ͕ GitHub ্ʹϦϙδτϦΛ  ࡞੒ͯ͠ɺΫϩʔϯ͠·͢ • Git ͷίϚϯυͷҙຯΛҰͭͣͭௐ΂·ͱΊͯɺ  ίϛοτɺϓογϡ͠߹͍·͠ΐ͏

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͍͞͝ʹ

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Git ͸։ൃ͢Δ্Ͱͷ  σϑΝΫτελϯμʔυ

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Կࣄ΋खΛಈ͔͞ͳ͍ͱ  ֮͑ΒΕͳ͍ͷͰɺ  ࣗ෼ͷखΛಈ͔֮ͯ͑͠Α͏

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·ͱΊ

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·ͱΊ • Git ͷ֓ཁ΍ Git Λ࢖ͬͨྲྀΕΛ཈͑ͨ • Git ͷίϚϯυʹ৮Εͨ • Git Λ࢖ͬͯखΛಈ͔ͯ͠Έͨ • ։ൃ͢Δ্Ͱ Git ͸σϑΝΫτελϯμʔυ

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Part 1 ͓ΘΓ

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Appendix

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ࢀߟจݙ • Git͕ɺ͓΋͠Ζ͍΄ͲΘ͔Δجຊͷ࢖͍ํ33 • https://ja.wikipedia.org/wiki/Git • https://git-scm.com/book/ja/v1/࢖͍࢝ΊΔ-࠷ॳͷGitͷߏ੒ • https://qiita.com/uasi/items/69368c17c79e99aaddbf • https://qiita.com/takeo-asai/items/9bc7e25cd94cd8c9adee • http://www-creators.com/archives/2106 • http://kimromi.hatenablog.jp/entry/2015/08/04/082357