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
|
package account
import (
"errors"
"fmt"
"os"
"path/filepath"
"sync"
"time"
"git.sr.ht/~rjarry/aerc/widgets"
mboxer "git.sr.ht/~rjarry/aerc/worker/mbox"
"git.sr.ht/~rjarry/aerc/worker/types"
)
type ExportMbox struct{}
func init() {
register(ExportMbox{})
}
func (ExportMbox) Aliases() []string {
return []string{"export-mbox"}
}
func (ExportMbox) Complete(aerc *widgets.Aerc, args []string) []string {
if acct := aerc.SelectedAccount(); acct != nil {
if path := acct.SelectedDirectory(); path != "" {
if f := filepath.Base(path); f != "" {
return []string{f + ".mbox"}
}
}
}
return nil
}
func (ExportMbox) Execute(aerc *widgets.Aerc, args []string) error {
if len(args) != 2 {
return exportFolderUsage(args[0])
}
filename := args[1]
acct := aerc.SelectedAccount()
if acct == nil {
return errors.New("No account selected")
}
store := acct.Store()
if store == nil {
return errors.New("No message store selected")
}
aerc.PushStatus("Exporting to "+filename, 10*time.Second)
go func() {
file, err := os.Create(filename)
if err != nil {
acct.Logger().Println(args[0], err.Error())
aerc.PushError(err.Error())
return
}
defer file.Close()
var mu sync.Mutex
var ctr uint32
var retries int
done := make(chan bool)
uids := make([]uint32, len(store.Uids()))
copy(uids, store.Uids())
t := time.Now()
for len(uids) > 0 {
if retries > 0 {
if retries > 10 {
errorMsg := fmt.Sprintln(args[0], "too many retries:", retries, "; stopping export")
acct.Logger().Println(errorMsg)
aerc.PushError(errorMsg)
break
}
sleeping := time.Duration(retries * 1e9 * 2)
acct.Logger().Println(args[0], "sleeping for", sleeping, "before retrying; retries:", retries)
time.Sleep(sleeping)
}
acct.Logger().Println(args[0], "fetching", len(uids), "for export")
acct.Worker().PostAction(&types.FetchFullMessages{
Uids: uids,
}, func(msg types.WorkerMessage) {
switch msg := msg.(type) {
case *types.Done:
acct.Logger().Println(args[0], "done")
done <- true
case *types.Error:
errMsg := fmt.Sprintln(args[0], "error encountered:", msg.Error.Error())
acct.Logger().Println(errMsg)
aerc.PushError(errMsg)
done <- false
case *types.FullMessage:
mu.Lock()
mboxer.Write(file, msg.Content.Reader, "", t)
for i, uid := range uids {
if uid == msg.Content.Uid {
uids = append(uids[:i], uids[i+1:]...)
break
}
}
ctr++
mu.Unlock()
}
})
if ok := <-done; ok {
break
}
retries++
}
statusInfo := fmt.Sprintf("Exported %d of %d messages to %s.", ctr, len(store.Uids()), filename)
aerc.PushStatus(statusInfo, 10*time.Second)
acct.Logger().Println(args[0], statusInfo)
}()
return nil
}
func exportFolderUsage(cmd string) error {
return fmt.Errorf("Usage: %s <filename>", cmd)
}
|
