mirror of
https://github.com/charmbracelet/harmonica.git
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Add Bubble Tea demo
This commit is contained in:
Christian Rocha
parent
4db1ed716b
commit
3332976a4c
104
examples/bubbletea/main.go
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104
examples/bubbletea/main.go
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@ -0,0 +1,104 @@
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package main
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import (
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"fmt"
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"math"
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"os"
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"strings"
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"time"
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tea "github.com/charmbracelet/bubbletea"
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"github.com/charmbracelet/harmonica"
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"github.com/charmbracelet/lipgloss"
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)
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const (
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fps = time.Second / 60
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spriteWidth = 12
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spriteHeight = 5
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frequency = 0.95
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damping = 0.98
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)
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var (
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helpStyle = lipgloss.NewStyle().
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Foreground(lipgloss.AdaptiveColor{Light: "246", Dark: "241"}).
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MarginTop(1).
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MarginLeft(2)
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spriteStyle = lipgloss.NewStyle().
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Foreground(lipgloss.Color("229")).
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Background(lipgloss.Color("69"))
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)
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type frameMsg time.Time
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func animate() tea.Cmd {
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return tea.Tick(fps, func(t time.Time) tea.Msg {
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return frameMsg(t)
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})
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}
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type model struct {
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x float64
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xVel float64
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spring harmonica.Spring
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}
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func (_ model) Init() tea.Cmd {
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return animate()
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}
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func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
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switch msg.(type) {
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case tea.KeyMsg:
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return m, tea.Quit
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// Step foreward one frame
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case frameMsg:
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const targetX = 60
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// Update x position (and velocity) with our spring.
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m.spring.Update(&m.x, &m.xVel, targetX)
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// Quit when we're basically at the target position.
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if math.Abs(m.x-targetX) < 0.01 {
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return m, tea.Quit
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}
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// Request next frame
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return m, animate()
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default:
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return m, nil
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}
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}
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func (m model) View() string {
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var out strings.Builder
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fmt.Fprint(&out, "\n")
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x := int(math.Round(m.x))
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if x < 0 {
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return ""
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}
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spriteRow := spriteStyle.Render(strings.Repeat("/", spriteWidth))
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row := strings.Repeat(" ", x) + spriteRow + "\n"
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fmt.Fprint(&out, strings.Repeat(row, spriteHeight))
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fmt.Fprint(&out, helpStyle.Render("Press any key to quit"))
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return out.String()
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}
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func main() {
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m := model{
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spring: harmonica.NewSpring(harmonica.TimeDelta(fps), frequency, damping),
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}
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if err := tea.NewProgram(m).Start(); err != nil {
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fmt.Println("Error running program:", err)
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os.Exit(1)
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}
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}
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@ -5,7 +5,12 @@ go 1.16
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replace github.com/charmbracelet/harmonica => ../
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require (
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github.com/charmbracelet/bubbletea v0.14.1 // indirect
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github.com/charmbracelet/harmonica v0.0.0-20210709144143-16876a63b30d // indirect
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github.com/charmbracelet/lipgloss v0.3.0 // indirect
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github.com/google/goterm v0.0.0-20190703233501-fc88cf888a3f // indirect
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github.com/h8gi/canvas v0.0.0-20200710004640-a6361a06ab49
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github.com/pkg/term v0.0.0-20200520122047-c3ffed290a03 // indirect
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golang.org/x/crypto v0.0.0-20201012173705-84dcc777aaee // indirect
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golang.org/x/image v0.0.0-20190523035834-f03afa92d3ff
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)
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@ -1,3 +1,9 @@
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github.com/charmbracelet/bubbletea v0.14.1 h1:pD/bM5LBEH/nDo7nKcgNUgi4uRHQhpWTIHZbG5vuSlc=
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github.com/charmbracelet/bubbletea v0.14.1/go.mod h1:b5lOf5mLjMg1tRn1HVla54guZB+jvsyV0yYAQja95zE=
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github.com/charmbracelet/lipgloss v0.3.0 h1:5MysOD6sHr4RP4jkZNWGVIul5GKoOsP12NgbgXPvAlA=
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github.com/charmbracelet/lipgloss v0.3.0/go.mod h1:VkhdBS2eNAmRkTwRKLJCFhCOVkjntMusBDxv7TXahuk=
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github.com/containerd/console v1.0.1 h1:u7SFAJyRqWcG6ogaMAx3KjSTy1e3hT9QxqX7Jco7dRc=
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github.com/containerd/console v1.0.1/go.mod h1:XUsP6YE/mKtz6bxc+I8UiKKTP04qjQL4qcS3XoQ5xkw=
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github.com/faiface/glhf v0.0.0-20181018222622-82a6317ac380 h1:FvZ0mIGh6b3kOITxUnxS3tLZMh7yEoHo75v3/AgUqg0=
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github.com/faiface/glhf v0.0.0-20181018222622-82a6317ac380/go.mod h1:zqnPFFIuYFFxl7uH2gYByJwIVKG7fRqlqQCbzAnHs9g=
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github.com/faiface/mainthread v0.0.0-20171120011319-8b78f0a41ae3 h1:baVdMKlASEHrj19iqjARrPbaRisD7EuZEVJj6ZMLl1Q=
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@ -14,11 +20,43 @@ github.com/go-gl/mathgl v0.0.0-20190416160123-c4601bc793c7 h1:THttjeRn1iiz69E875
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github.com/go-gl/mathgl v0.0.0-20190416160123-c4601bc793c7/go.mod h1:yhpkQzEiH9yPyxDUGzkmgScbaBVlhC06qodikEM0ZwQ=
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github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0 h1:DACJavvAHhabrF08vX0COfcOBJRhZ8lUbR+ZWIs0Y5g=
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github.com/golang/freetype v0.0.0-20170609003504-e2365dfdc4a0/go.mod h1:E/TSTwGwJL78qG/PmXZO1EjYhfJinVAhrmmHX6Z8B9k=
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github.com/google/goterm v0.0.0-20190703233501-fc88cf888a3f/go.mod h1:nOFQdrUlIlx6M6ODdSpBj1NVA+VgLC6kmw60mkw34H4=
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github.com/h8gi/canvas v0.0.0-20200710004640-a6361a06ab49 h1:svddC2dRqy+Y1zGH4+AvvCFZLKuPhAfEvlgYSNP4lcg=
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github.com/h8gi/canvas v0.0.0-20200710004640-a6361a06ab49/go.mod h1:7iSUKfOcA+GiWc+LpxXggMogUFIo8pm1FZcYTUmL3YY=
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github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
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github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
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github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY=
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github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
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github.com/mattn/go-runewidth v0.0.10 h1:CoZ3S2P7pvtP45xOtBw+/mDL2z0RKI576gSkzRRpdGg=
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github.com/mattn/go-runewidth v0.0.10/go.mod h1:RAqKPSqVFrSLVXbA8x7dzmKdmGzieGRCM46jaSJTDAk=
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github.com/mattn/go-runewidth v0.0.13 h1:lTGmDsbAYt5DmK6OnoV7EuIF1wEIFAcxld6ypU4OSgU=
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github.com/mattn/go-runewidth v0.0.13/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
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github.com/muesli/reflow v0.2.1-0.20210115123740-9e1d0d53df68 h1:y1p/ycavWjGT9FnmSjdbWUlLGvcxrY0Rw3ATltrxOhk=
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github.com/muesli/reflow v0.2.1-0.20210115123740-9e1d0d53df68/go.mod h1:Xk+z4oIWdQqJzsxyjgl3P22oYZnHdZ8FFTHAQQt5BMQ=
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github.com/muesli/termenv v0.8.1 h1:9q230czSP3DHVpkaPDXGp0TOfAwyjyYwXlUCQxQSaBk=
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github.com/muesli/termenv v0.8.1/go.mod h1:kzt/D/4a88RoheZmwfqorY3A+tnsSMA9HJC/fQSFKo0=
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github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
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github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
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github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
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github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
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github.com/pkg/term v0.0.0-20200520122047-c3ffed290a03/go.mod h1:Z9+Ul5bCbBKnbCvdOWbLqTHhJiYV414CURZJba6L8qA=
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github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
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github.com/rivo/uniseg v0.2.0 h1:S1pD9weZBuJdFmowNwbpi7BJ8TNftyUImj/0WQi72jY=
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github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
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golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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golang.org/x/crypto v0.0.0-20201012173705-84dcc777aaee/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
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golang.org/x/image v0.0.0-20190321063152-3fc05d484e9f/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
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golang.org/x/image v0.0.0-20190523035834-f03afa92d3ff h1:+2zgJKVDVAz/BWSsuniCmU1kLCjL88Z8/kv39xCI9NQ=
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golang.org/x/image v0.0.0-20190523035834-f03afa92d3ff/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
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golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
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golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20200916030750-2334cc1a136f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20201119102817-f84b799fce68 h1:nxC68pudNYkKU6jWhgrqdreuFiOQWj1Fs7T3VrH4Pjw=
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golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4 h1:myAQVi0cGEoqQVR5POX+8RR2mrocKqNN1hmeMqhX27k=
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golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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golang.org/x/term v0.0.0-20210422114643-f5beecf764ed h1:Ei4bQjjpYUsS4efOUz+5Nz++IVkHk87n2zBA0NxBWc0=
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golang.org/x/term v0.0.0-20210422114643-f5beecf764ed/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
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golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
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