forked from lukasmartinelli/pgfutter
/
pgfutter.go
148 lines (134 loc) · 3.21 KB
/
pgfutter.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
package main
import (
"log"
"os"
"path/filepath"
"strings"
"github.com/codegangsta/cli"
)
func exitOnError(err error) {
log.SetFlags(0)
if err != nil {
log.Fatalln(err)
}
}
//Parse table to copy to from given filename or passed flags
func parseTableName(c *cli.Context, filename string) string {
tableName := c.GlobalString("table")
if tableName == "" {
base := filepath.Base(filename)
ext := filepath.Ext(filename)
tableName = strings.TrimSuffix(base, ext)
}
return postgresify(tableName)
}
func main() {
app := cli.NewApp()
app.Name = "pgfutter"
app.Version = "0.3.2"
app.Usage = "Import JSON and CSV into PostgreSQL the easy way"
app.Flags = []cli.Flag{
cli.StringFlag{
Name: "dbname, db",
Value: "postgres",
Usage: "database to connect to",
EnvVar: "DB_NAME",
},
cli.StringFlag{
Name: "host",
Value: "localhost",
Usage: "host name",
EnvVar: "DB_HOST",
},
cli.StringFlag{
Name: "port",
Value: "5432",
Usage: "port",
EnvVar: "DB_PORT",
},
cli.StringFlag{
Name: "username, user",
Value: "postgres",
Usage: "username",
EnvVar: "DB_USER",
},
cli.StringFlag{
Name: "pass, pw",
Value: "",
Usage: "password",
EnvVar: "DB_PASS",
},
cli.StringFlag{
Name: "schema",
Value: "import",
Usage: "database schema",
EnvVar: "DB_SCHEMA",
},
cli.StringFlag{
Name: "table",
Usage: "destination table",
EnvVar: "DB_TABLE",
},
cli.BoolFlag{
Name: "ignore-errors",
Usage: "halt transaction on inconsistencies",
},
}
app.Commands = []cli.Command{
{
Name: "json",
Usage: "Import JSON objects into database",
Action: func(c *cli.Context) {
cli.CommandHelpTemplate = strings.Replace(cli.CommandHelpTemplate, "[arguments...]", "<json-file>", -1)
filename := c.Args().First()
if filename == "" {
cli.ShowCommandHelp(c, "json")
os.Exit(1)
}
ignoreErrors := c.GlobalBool("ignore-errors")
schema := c.GlobalString("schema")
tableName := parseTableName(c, filename)
connStr := parseConnStr(c)
err := importJSON(filename, connStr, schema, tableName, ignoreErrors)
exitOnError(err)
},
},
{
Name: "csv",
Usage: "Import CSV into database",
Flags: []cli.Flag{
cli.BoolFlag{
Name: "skip-header",
Usage: "skip header row",
},
cli.StringFlag{
Name: "fields",
Usage: "comma separated field names if no header row",
},
cli.StringFlag{
Name: "delimiter, d",
Value: ",",
Usage: "field delimiter",
},
},
Action: func(c *cli.Context) {
cli.CommandHelpTemplate = strings.Replace(cli.CommandHelpTemplate, "[arguments...]", "<csv-file>", -1)
filename := c.Args().First()
if filename == "" {
cli.ShowCommandHelp(c, "csv")
os.Exit(1)
}
ignoreErrors := c.GlobalBool("ignore-errors")
schema := c.GlobalString("schema")
tableName := parseTableName(c, filename)
skipHeader := c.Bool("skip-header")
fields := c.String("fields")
delimiter := c.String("delimiter")
connStr := parseConnStr(c)
err := importCSV(filename, connStr, schema, tableName, ignoreErrors, skipHeader, fields, delimiter)
exitOnError(err)
},
},
}
app.Run(os.Args)
}