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spf13/cobraでもできる簡単CLIツール / Fukuoka.go #11
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Ken’ichiro Oyama
June 14, 2018
Technology
4
990
spf13/cobraでもできる簡単CLIツール / Fukuoka.go #11
Fukuoka.go #11 LT
Ken’ichiro Oyama
June 14, 2018
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Transcript
খࢁ݈Ұ(.01FQBCP *OD 'VLVPLBHP TQGDPCSBͰͰ͖Δ ؆୯$-*πʔϧ
γχΞΤϯδχΞ খࢁ݈Ұ!L-P8 ϗεςΟϯάࣄۀ෦ϗεςΟϯάάϧʔϓϚωʔδυΫϥυνʔϜ IUUQTHJUIVCDPNL-P8
.Z$-*UPPMT w BXTQFD w LPNB w PDUPQVCMJTI w PDUPQBDLBHF w
DFSUNBO w TDPOC w UNQGL w SFDJQF w CVO w LVNPNF w CBDLMPHDQ w EFWMPDBM
.Z$-*UPPMT w BXTQFD w LPNB w PDUPQVCMJTI w PDUPQBDLBHF w
DFSUNBO w TDPOC w UNQGL w SFDJQF w CVO w LVNPNF w CBDLMPHDQ w EFWMPDBM PQUQBSTF $BLF4IFMM /PEF #BTI
*5IPS
5IPS w5IPSJTBUPPMLJUGPSCVJMEJOHQPXFSGVMDPNNBOEMJOFJOUFSGBDFT *UJTVTFEJO#VOEMFS 7BHSBOU 3BJMTBOEPUIFST wIUUQXIBUJTUIPSDPN w3VCZͷϑϧελοΫͳ$-*ϥΠϒϥϦ wҾΦϓγϣϯͷΈָཱ͕ͯͰػೳͷ࣮ʹूதͰ͖Δ wศརʹ࡞ΒΕ͍͗ͯͯ͢ɺ3VCZΛॻ͍͍ͯΔͱ͍͏ΑΓ5IPS Λॻ͍͍ͯΔ
ͱ͜ΖͰ࠷ۙ(PΛ֮͑·ͨ͠
.Z$-*UPPMT XSJUUFOJO(P
DHSQT wDHSQTJTBTFUPGDPNNBOETGPSDIFDLJOHDHSPVQT wIUUQTHJUIVCDPNL-P8DHSQT wେྔͷDHSPVQ͕࡞͞ΕΔڥͰɺQFDPͳͲͱ࿈ܞͯ͠ޮతʹ DHSPVQใΛऔΓѻ͏ͨΊͷίϚϯυ > cgrps stat
$(cgrps ls | peco) > ps u --pid $(cgrps ls | peco | cgrps pids | xargs)
UCMT wUCMTJTB$*'SJFOEMZUPPMGPSEPDVNFOUBEBUBCBTF XSJUUFOJO(P wIUUQTHJUIVCDPNL-P8UCMT w.BSLEPXO ('. ܗࣜͰσʔλϕʔευΩϡϝϯτΛੜͯ͘͠ΕΔί Ϛϯυ w$*ʹΈࠐΜͰυΩϡϝϯτͷߋ৽ΛνΣοΫ͢ΔίϚϯυ͋Δ
> tbls doc postgres://user:pass@hostname:5432/dbname ./dbdoc
None
(PͰ$-*πʔϧΛ࡞Δ
(PͰ$-*πʔϧΛ࡞Δ w$-*ϥΠϒϥϦʢϑϨʔϜϫʔΫʣΛ͏ wͨͩϥΠϒϥϦΛ͏ͷͰͳ͘δΣωϨʔτπʔϧΛͬͯߴʹ ϓϩτλΠϓΛ࡞Δ UDOLTNHDMJ VSGBWFDMJ NJUDIFMMIDMJ HPDNE
&YBNQMF IUUQTTQFBLFSEFDLDPNUDOLTNLPNBOEPSBJOUVSVOJUVJUFZVSVUPLJOJQVGBMTFZVSVLPUPOVNCFSZBQDBTJB TMJEF
TQGDPCSB
Cobra is both a library for creating powerful
modern CLI applications as well as a program to generate applications and command files.
TQGDPCSB w,VCFOFUFT.PCZ %PDLFS ɺ0QFO4IJGUͳͲͰΘΕ͍ͯΔ $-*ϥΠϒϥϦʢϑϨʔϜϫʔΫʣͰ͋ΓδΣωϨʔτπʔϧ wDPCSBͷܗΛDPCSBΛͬͯߴʹϓϩτλΠϓΛ࡞Δ TQGDPCSB TQGDPCSB
None
Πϯετʔϧ͔ΒίϚϯυ࡞ͷྫ
/> go get github.com/spf13/cobra/cobra /> cobra init github.com/k1LoW/fukgo
/> cd $GOPATH/src/github.com/k1LoW/fukgo fukgo/> cobra add hello fukgo/> go build fukgo/> ./cobra 1 2 3 4 5 6
؆୯
DPCSBίϚϯυ wDPCSBJOJUTQGDPCSBTQGWJQFSΛͬͨ$-*πʔϧͷܗΛ ࡞͢ΔίϚϯυ wTQGWJQFSʜDPOpHϑΝΠϧΛಡΈࠐΉͨΊͷػߏΛఏڙ͢Δϥ ΠϒϥϦʢඞཁͳ͍߹WJQFSGBMTFʣ wDPCSBBEEαϒίϚϯυͷܗΛՃ࡞͢ΔίϚϯυ
ੜ͞Εͨιʔεͷߏ GVLHP ᵓᴷᴷ-*$&/4& ᵓᴷᴷDNE ᴹᵓᴷᴷIFMMPHPʜGVLHPIFMMPίϚϯυͷίʔυ ᴹᵋᴷᴷSPPUHPʜGVLHPίϚϯυͷίʔυ ᵋᴷᴷNBJOHP
ίʔυͷઆ໌ׂѪ ͨͿΜݟͨΒ͙͢Θ͔Δ ͘Β͍ʹΘ͔Γ͍͢
TQGDPCSBͰͰ͖Δ͜ͱ wίϚϯυ͚ͩͷελΠϧαϒίϚϯυΛ࣋ͭελΠϧ࣮Մೳ wUIPSHFNͰαϒίϚϯυͷελΠϧҎ֎ͷ࣮ݱ͕͍͠ wTQGDPCSBͷ߹DNESPPUHPΛҭͯΕྑ͍ wIFMQίϚϯυͷࣗಈ࡞Φϓγϣϯͷ؆୯੍ޚͳͲଞͷ$-*ϥΠ ϒϥϦͱಉ༷ʹՄೳ wTQGWJQFSͱͷ࿈ܞͰઃఆϑΝΠϧͱͷ࿈ܞՄೳ
ଞͷ$-*ϥΠϒϥϦͰͰ͖Δ͜ͱ Ͱ͖ͦ͏
Ͳͷ$-*ϥΠϒϥϦͰेʹྑ͍ ΈͰબΜͰ
*TQGDPCSB
5IBOLZPV ࠷৽ͷ࠾༻ใΛνΣοΫˠ !QC@SFDSVJU