1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
|
package main
import (
"flag"
"fmt"
"os"
"path/filepath"
"strings"
"sync/atomic"
"time"
"github.com/charmbracelet/bubbles/progress"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
"gitlab.com/rhogenson/ccp/internal/cp"
"gitlab.com/rhogenson/deque"
)
var f = flag.Bool("f", false, "if an existing destination file cannot be opened, remove it and try again")
type measurement struct {
t time.Time
i int64
}
type model struct {
progress progress.Model
msgs chan tea.Msg
srcs []string
dst string
max int64
current atomic.Int64
measurements deque.Deque[measurement]
copyingFiles map[string]bool
copyingFile string
errs []string
}
type (
tickMsg struct{}
maxMsg int64
fileStartMsg string
fileDoneMsg struct {
name string
err error
}
doneMsg struct{}
)
func (m *model) listen() tea.Cmd {
return func() tea.Msg {
return <-m.msgs
}
}
func tick() tea.Cmd {
return tea.Tick(10*time.Millisecond, func(time.Time) tea.Msg { return tickMsg{} })
}
func (m *model) Init() tea.Cmd {
return tea.Batch(
func() tea.Msg {
cp.Copy(m.srcs, m.dst, *f, m)
return doneMsg{}
},
m.listen(),
tick())
}
func (m *model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
switch msg := msg.(type) {
case maxMsg:
m.max = int64(msg)
return m, m.listen()
case fileStartMsg:
name := string(msg)
m.copyingFiles[name] = true
if m.copyingFile == "" {
m.copyingFile = name
}
return m, m.listen()
case fileDoneMsg:
delete(m.copyingFiles, msg.name)
if m.copyingFile == msg.name {
m.copyingFile = ""
for name := range m.copyingFiles {
m.copyingFile = name
break
}
}
if msg.err != nil {
m.errs = append(m.errs, msg.err.Error())
}
return m, m.listen()
case doneMsg:
return m, tea.Sequence(
m.progress.SetPercent(float64(m.current.Load())/float64(m.max)),
tea.Tick(500*time.Millisecond, func(time.Time) tea.Msg { return nil }),
tea.Quit)
case tickMsg:
now := time.Now()
for m.measurements.Len() > 1 && now.Sub(m.measurements.At(0).t) > 2*time.Minute {
m.measurements.PopFront()
}
n := m.current.Load()
m.measurements.PushBack(measurement{now, n})
cmds := []tea.Cmd{tick()}
if m.max > 0 {
cmds = append(cmds, m.progress.SetPercent(float64(n)/float64(m.max)))
}
return m, tea.Batch(cmds...)
case tea.WindowSizeMsg:
m.progress.Width = msg.Width - 4
return m, nil
// FrameMsg is sent when the progress bar wants to animate itself
case progress.FrameMsg:
progressModel, cmd := m.progress.Update(msg)
m.progress = progressModel.(progress.Model)
return m, cmd
default:
return m, nil
}
}
var warningStyle = lipgloss.NewStyle().Foreground(lipgloss.Color("3")).Render
func (m *model) View() string {
copying := ""
if m.copyingFile != "" {
copying = "Copying " + m.copyingFile + "..."
}
etaStr := "calculating..."
if m.max > 0 && m.measurements.Len() > 1 {
first := m.measurements.At(0)
last := m.measurements.At(m.measurements.Len() - 1)
deltaT := last.t.Sub(first.t)
delta := last.i - first.i
if delta != 0 {
etaStr = time.Duration(float64(m.max-last.i) / float64(delta) * float64(deltaT)).Round(time.Second).String()
}
}
return "\n" +
" " + copying + "\n" +
" " + m.progress.View() + "\n" +
" " + "ETA: " + etaStr + "\n\n" +
warningStyle(strings.Join(m.errs, "\n")) + "\n"
}
func (m *model) Max(n int64) {
m.msgs <- maxMsg(n)
}
func (m *model) Progress(n int64) {
m.current.Add(n)
}
func (m *model) FileStart(name string) {
m.msgs <- fileStartMsg(name)
}
func (m *model) FileDone(name string, err error) {
m.msgs <- fileDoneMsg{name, err}
}
func main() {
flag.Usage = func() {
fmt.Fprintf(os.Stderr, `Usage: ccp [OPTION]... SOURCE DEST
or: ccp [OPTION]... SOURCE... DIRECTORY
Copy SOURCE to DEST, or multiple SOURCE(s) to DIRECTORY.
`)
flag.PrintDefaults()
}
flag.Parse()
args := flag.Args()
if len(args) < 2 {
fmt.Fprintln(os.Stderr, "usage error")
os.Exit(2)
}
srcs, dst := args[:len(args)-1], args[len(args)-1]
if len(srcs) == 1 {
if stat, err := os.Stat(dst); err == nil && stat.IsDir() {
dst = filepath.Join(dst, filepath.Base(srcs[0]))
}
}
m := &model{
progress: progress.New(progress.WithDefaultGradient(), progress.WithoutPercentage()),
msgs: make(chan tea.Msg),
copyingFiles: make(map[string]bool),
srcs: srcs,
dst: dst,
}
if _, err := tea.NewProgram(m, tea.WithInput(nil), tea.WithOutput(os.Stderr)).Run(); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
if len(m.errs) > 0 {
os.Exit(1)
}
}
|
