golang tokyo go tools

Transcript

1. Go Λ͸͡ΊΔʹ͋ͨͬͯ
   ஌͓͍ͬͯͯ΄͍͠πʔϧ
   2019/04/19 @golang.tokyo
   1
   The Go gopher was designed by Renee French.
   

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2. Who?
   • ެ຿һʢࢁܗݝிʣ

   →WebσβΠφʔ

   →αʔόʔαΠυΤϯδχΞ
   
   w Women Who Go Tokyoελοϑ
   !2
   ID: mom0tomo
   

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3. Women Who Go Tokyo
   Go޷͖͕ू·ͬͯɺ݄ʹҰ౓ςʔϚֶश͍ͯ͠·͢
   !3
   

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4. ΩʔΩϟοϓ൦෍͠·ͨ͠
   ٕज़ॻయ#wwg_tokyo
   !4
   

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5. ஌͓ͬͯ͘ͱ
   ໾ʹཱͭ͜ͱ
   !5
   

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6. golang.orgΛࢀর͠Α͏
   !6
   

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7. golang.orgΛࢀর͠Α͏
   golang.jp͸಺༰͕WҎલͳͷͰ஫ҙ͢Δ
   !7
   

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8. Gophers.slack.comʹࢀՃ͠Α͏
   !8
   

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9. Gophers.slack.comʹࢀՃ͠Α͏
   https://invite.slack.golangbridge.org/
   !9
   

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10. Golang WeeklyΛಡ΋͏
    !10
    

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11. !11
    ஌͍ͬͯΔͱ
    ศརͳπʔϧ
    

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12. Go ͸ίϚϯυ/πʔϧ͕ॆ࣮ͯ͠
    ͍Δ
    • go ίϚϯυ
    • go tool
    • ඪ४ɾ४ඪ४ύοέʔδͰఏڙ͞Ε͍ͯΔ
    
    • IDEʹཔΒͳͯ͘΋շదʹ։ൃͰ͖Δ
    

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13. ؀ڥม਺Λදࣔ͢Δ
    $ go env
    13
    

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14. $ go env
    GOARCH="amd64"
    GOBIN=""
    GOCACHE="/home/alex/.cache/go-build"
    GOEXE=""
    GOFLAGS=""
    GOHOSTARCH="amd64"
    GOHOSTOS="linux"
    GOOS="linux"
    GOPATH="/home/alex/go"
    GOPROXY=""
    GORACE=""
    GOROOT="/usr/local/go"
    GOTMPDIR=""
    GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
    GCCGO="gccgo"
    CC="gcc"
    CXX="g++"
    CGO_ENABLED="1"
    GOMOD=""
    CGO_CFLAGS="-g -O2"
    CGO_CPPFLAGS=""
    CGO_CXXFLAGS="-g -O2"
    CGO_FFLAGS="-g -O2"
    CGO_LDFLAGS="-g -O2"
    PKG_CONFIG="pkg-config"
    GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-
    build245740092=/tmp/go-build -gno-record-gcc-switches"
    14
    

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15. $ go env GOPATH GOROOT
    /Users/mom0tomo/dev/go
    /usr/local/go
    // ಛఆͷ؀ڥม਺Λൈ͖ग़ͯ͠දࣔ͢Δ
    15
    

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16. ίʔυΛformat͢Δ
    $ gofmt
    $ go fmt
    16
    

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17. $ gofmt .
    $ gofmt foo.go
    // Options
    // -d : diffΛඪ४ग़ྗ͢Δ
    // -l : ϑΝΠϧ໊Λඪ४ग़ྗ͢Δ
    // -w : ্ॻ͖อଘ͢Δ
    // -s : ه๏Λγϯϓϧʹ͢Δ
    // Ұཡ͸ https://godoc.org/github.com/gophersjp/go/src/cmd/gofmt
    17
    

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18. $ go fmt .
    $ go fmt foo.go
    // $ gofmt -l -w ͱಉ͡͸ͨΒ͖
    // formatͨ͠಺༰Ͱ্ॻ͖ͯ͠ϑΝΠϧ໊Λඪ४ग़ྗ͢Δ
    18
    

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19. ίʔυΛ੩తղੳͯ͠
    ଥ౰ੑΛνΣοΫ͢Δ
    $ go vet
    19
    

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20. $ go vet .
    $ go vet foo.go
    // ίʔυΛ੩తղੳͯ͠ه๏ΛνΣοΫ͢Δ
    // ίϯύΠϥʹ͸ݕ஌Ͱ͖ͳ͍΋ͷΛݟ͚ͭͯ͘ΕΔ
    20
    

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21. Ϧϯλʔʹ͔͚Δ
    $ golint
    21
    

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22. $ golint .
    $ golint foo.go
    // ίʔυ͕Effective GoͱCodeReviewCommentsʹ
    Ԋ͏͔νΣοΫ͢Δ
    22
    

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23. Thank you!
    @mom0tomo
    23
    

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