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
|
package main
import (
"flag"
"fmt"
"net/url"
"os"
"github.com/Necoro/feed2imap-go/internal/feed"
"github.com/Necoro/feed2imap-go/internal/imap"
"github.com/Necoro/feed2imap-go/pkg/config"
"github.com/Necoro/feed2imap-go/pkg/log"
"github.com/Necoro/feed2imap-go/pkg/version"
)
// flags
var (
cfgFile string = "config.yml"
cacheFile string = "feed.cache"
printVersion bool = false
dryRun bool = false
buildCache bool = false
verbose bool = false
debug bool = false
)
func init() {
flag.StringVar(&cfgFile, "f", cfgFile, "configuration file")
flag.StringVar(&cacheFile, "c", cacheFile, "cache file")
flag.BoolVar(&printVersion, "version", printVersion, "print version and exit")
flag.BoolVar(&dryRun, "dry-run", dryRun, "do everything short of uploading and writing the cache")
flag.BoolVar(&buildCache, "build-cache", buildCache, "only (re)build the cache; useful after migration or when the cache is lost or corrupted")
flag.BoolVar(&verbose, "v", verbose, "enable verbose output")
flag.BoolVar(&debug, "d", debug, "enable debug output")
}
func processFeed(feed *feed.Feed, client *imap.Client, dryRun bool) {
msgs, err := feed.Messages()
if err != nil {
log.Errorf("Processing items of feed %s: %s", feed.Name, err)
return
}
if dryRun || len(msgs) == 0 {
feed.MarkSuccess()
return
}
folder := client.NewFolder(feed.Target)
if err = client.EnsureFolder(folder); err != nil {
log.Errorf("Creating folder of feed %s: %s", feed.Name, err)
return
}
if err = msgs.Upload(client, folder, feed.Reupload); err != nil {
log.Errorf("Uploading messages of feed %s: %s", feed.Name, err)
return
}
log.Printf("Uploaded %d messages to '%s' @ %s", len(msgs), feed.Name, folder)
feed.MarkSuccess()
}
func run() error {
flag.Parse()
if printVersion {
println("Feed2Imap-Go, " + version.FullVersion())
return nil
}
if debug {
log.SetDebug()
} else if verbose {
log.SetVerbose()
}
log.Printf("Starting up (%s)...", version.FullVersion())
cfg, err := config.Load(cfgFile)
if err != nil {
return err
}
if err = cfg.Validate(); err != nil {
return fmt.Errorf("Configuration invalid: %w", err)
}
state := feed.NewState(cfg)
err = state.LoadCache(cacheFile, buildCache)
if err != nil {
return err
}
state.RemoveUndue()
if state.NumFeeds() == 0 {
log.Print("Nothing to do, exiting.")
// nothing to do
return nil
}
if success := state.Fetch(); success == 0 {
return fmt.Errorf("No successful feed fetch.")
}
state.Filter()
imapUrl, err := url.Parse(cfg.Target)
if err != nil {
return fmt.Errorf("parsing 'target': %w", err)
}
var c *imap.Client
if !dryRun && !buildCache {
if c, err = imap.Connect(imapUrl); err != nil {
return err
}
defer c.Disconnect()
}
if buildCache {
state.Foreach((*feed.Feed).MarkSuccess)
} else {
state.ForeachGo(func(f *feed.Feed) {
processFeed(f, c, dryRun)
})
}
if !dryRun {
if err = state.StoreCache(cacheFile); err != nil {
return err
}
}
return nil
}
func main() {
if err := run(); err != nil {
log.Error(err)
os.Exit(1)
}
}
|
