-
Notifications
You must be signed in to change notification settings - Fork 0
/
mod.go
170 lines (137 loc) · 5.06 KB
/
mod.go
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
package main
import (
"fmt"
"net/http"
"os"
"os/signal"
"path/filepath"
"sync"
"time"
"github.com/jessevdk/go-flags"
"github.com/nkcr/OSIA/aggregator"
"github.com/nkcr/OSIA/httpapi"
"github.com/nkcr/OSIA/instagram"
"github.com/rs/zerolog"
"github.com/tidwall/buntdb"
)
// Version contains the current or build version. This variable can be changed
// at build time with:
//
// go build -ldflags="-X 'main.Version=v1.0.0'"
//
// Version should be fetched from git: `git describe --tags`
var Version = "unknown"
// BuildTime indicates the time at which the binary has been built. Must be set
// as with Version.
var BuildTime = "unknown"
const tokenKey = "INSTAGRAM_TOKEN"
var logout = zerolog.ConsoleWriter{
Out: os.Stdout,
TimeFormat: time.RFC3339,
}
// args defines the CLI arguments. You can always use -h to see the help.
type args struct {
Interval time.Duration `short:"i" long:"interval" default:"1h" description:"Refresh interval used by the Aggregator."`
DBFilePath string `short:"d" long:"dbfilepath" default:"osia.db" description:"File path of the database."`
ImagesFolder string `short:"j" long:"imagesfolder" description:"Folder used to saved images. By default it uses $HOME/.OSIA/images."`
HTTPListen string `short:"l" long:"listen" default:"0.0.0.0:3333" description:"The listen address of the HTTP server that servers the API."`
Version bool `short:"v" long:"version" description:"Displays the version."`
}
func main() {
var args args
parser := flags.NewParser(&args, flags.Default)
remaining, err := parser.Parse()
if err != nil {
flagsErr, ok := err.(*flags.Error)
if ok && flagsErr.Type == flags.ErrHelp {
os.Exit(0)
}
fmt.Println("failed to parse arguments:", err.Error())
os.Exit(1)
}
if len(remaining) != 0 {
fmt.Printf("unknown flags: %v\n", remaining)
os.Exit(1)
}
if args.Version {
fmt.Println("OSIA", Version, "-", BuildTime)
os.Exit(0)
}
// set the default value for the imagesFolder argument
if args.ImagesFolder == "" {
homeDir, err := os.UserHomeDir()
if err != nil {
panic(fmt.Sprintf("failed to get home dir: %v", err))
}
imagesFolder := filepath.Join(homeDir, ".OSIA", "images")
args.ImagesFolder = imagesFolder
}
var logger = zerolog.New(logout).Level(zerolog.InfoLevel).
With().Timestamp().Logger().
With().Caller().Logger()
logger.Info().Msgf("hi,\n"+
"┌───────────────────────────────────────────────┐\n"+
"│ ** Open Source Instagram Aggregator **\t│\n"+
"├───────────────────────────────────────────────┤\n"+
"│ Version %s │ Build time %s\t│\n"+
"├───────────────────────────────────────────────┤\n"+
"│ Interval %s\t│\n"+
"├───────────────────────────────────────────────┤\n"+
"│ DBFilePath %s\t│\n"+
"├───────────────────────────────────────────────┤\n"+
"│ ImagesFolder %s\t│\n"+
"├───────────────────────────────────────────────┤\n"+
"│ HTTPListen %s\t│\n"+
"└───────────────────────────────────────────────┘\n",
Version, BuildTime, args.Interval.String(), args.DBFilePath,
args.ImagesFolder, args.HTTPListen)
err = os.MkdirAll(filepath.Dir(args.DBFilePath), 0744)
if err != nil {
panic(fmt.Sprintf("failed to create db dir: %v", err))
}
db, err := buntdb.Open(args.DBFilePath)
if err != nil {
panic(err)
}
defer db.Close()
err = db.CreateIndex("timestamp", "*", buntdb.IndexJSON("timestamp"))
if err != nil {
panic(err)
}
token := os.Getenv(tokenKey)
if token == "" {
panic(fmt.Sprintf("please set the %s variable", tokenKey))
}
err = os.MkdirAll(args.ImagesFolder, 0744)
if err != nil {
panic(fmt.Sprintf("failed to create config dir: %v", err))
}
client := http.DefaultClient
api := instagram.NewHTTPAPI(token, client)
agg := aggregator.NewInstagramAggregator(db, api, args.ImagesFolder, client, logger)
httpserver := httpapi.NewInstagramHTTP(args.HTTPListen, db, args.ImagesFolder, logger)
wait := sync.WaitGroup{}
wait.Add(1)
go func() {
defer wait.Done()
err = agg.Start(args.Interval)
if err != nil {
logger.Err(err).Msg("failed to start the aggregator... exiting")
os.Exit(1)
}
logger.Info().Msg("aggregator done")
}()
wait.Add(1)
go func() {
defer wait.Done()
httpserver.Start()
logger.Info().Msg("http server done")
}()
quit := make(chan os.Signal, 1)
signal.Notify(quit, os.Interrupt)
<-quit
agg.Stop()
httpserver.Stop()
wait.Wait()
logger.Info().Msg("done")
}