forked from volatiletech/sqlboiler
/
postgres_main.tpl
172 lines (138 loc) · 4.01 KB
/
postgres_main.tpl
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
type pgTester struct {
dbConn *sql.DB
dbName string
host string
user string
pass string
sslmode string
port int
pgPassFile string
testDBName string
}
func init() {
dbMain = &pgTester{}
}
// setup dumps the database schema and imports it into a temporary randomly
// generated test database so that tests can be run against it using the
// generated sqlboiler ORM package.
func (p *pgTester) setup() error {
var err error
p.dbName = viper.GetString("postgres.dbname")
p.host = viper.GetString("postgres.host")
p.user = viper.GetString("postgres.user")
p.pass = viper.GetString("postgres.pass")
p.port = viper.GetInt("postgres.port")
p.sslmode = viper.GetString("postgres.sslmode")
// Create a randomized db name.
p.testDBName = randomize.StableDBName(p.dbName)
if err = p.makePGPassFile(); err != nil {
return err
}
if err = p.dropTestDB(); err != nil {
return err
}
if err = p.createTestDB(); err != nil {
return err
}
dumpCmd := exec.Command("pg_dump", "--schema-only", p.dbName)
dumpCmd.Env = append(os.Environ(), p.pgEnv()...)
createCmd := exec.Command("psql", p.testDBName)
createCmd.Env = append(os.Environ(), p.pgEnv()...)
r, w := io.Pipe()
dumpCmd.Stdout = w
createCmd.Stdin = newFKeyDestroyer(rgxPGFkey, r)
if err = dumpCmd.Start(); err != nil {
return errors.Wrap(err, "failed to start pg_dump command")
}
if err = createCmd.Start(); err != nil {
return errors.Wrap(err, "failed to start psql command")
}
if err = dumpCmd.Wait(); err != nil {
fmt.Println(err)
return errors.Wrap(err, "failed to wait for pg_dump command")
}
w.Close() // After dumpCmd is done, close the write end of the pipe
if err = createCmd.Wait(); err != nil {
fmt.Println(err)
return errors.Wrap(err, "failed to wait for psql command")
}
return nil
}
func (p *pgTester) runCmd(stdin, command string, args ...string) error {
cmd := exec.Command(command, args...)
cmd.Env = append(os.Environ(), p.pgEnv()...)
if len(stdin) != 0 {
cmd.Stdin = strings.NewReader(stdin)
}
stdout := &bytes.Buffer{}
stderr := &bytes.Buffer{}
cmd.Stdout = stdout
cmd.Stderr = stderr
if err := cmd.Run(); err != nil {
fmt.Println("failed running:", command, args)
fmt.Println(stdout.String())
fmt.Println(stderr.String())
return err
}
return nil
}
func (p *pgTester) pgEnv() []string {
return []string{
fmt.Sprintf("PGHOST=%s", p.host),
fmt.Sprintf("PGPORT=%d", p.port),
fmt.Sprintf("PGUSER=%s", p.user),
fmt.Sprintf("PGPASSFILE=%s", p.pgPassFile),
}
}
func (p *pgTester) makePGPassFile() error {
tmp, err := ioutil.TempFile("", "pgpass")
if err != nil {
return errors.Wrap(err, "failed to create option file")
}
fmt.Fprintf(tmp, "%s:%d:postgres:%s", p.host, p.port, p.user)
if len(p.pass) != 0 {
fmt.Fprintf(tmp, ":%s", p.pass)
}
fmt.Fprintln(tmp)
fmt.Fprintf(tmp, "%s:%d:%s:%s", p.host, p.port, p.dbName, p.user)
if len(p.pass) != 0 {
fmt.Fprintf(tmp, ":%s", p.pass)
}
fmt.Fprintln(tmp)
fmt.Fprintf(tmp, "%s:%d:%s:%s", p.host, p.port, p.testDBName, p.user)
if len(p.pass) != 0 {
fmt.Fprintf(tmp, ":%s", p.pass)
}
fmt.Fprintln(tmp)
p.pgPassFile = tmp.Name()
return tmp.Close()
}
func (p *pgTester) createTestDB() error {
return p.runCmd("", "createdb", p.testDBName)
}
func (p *pgTester) dropTestDB() error {
return p.runCmd("", "dropdb", "--if-exists", p.testDBName)
}
// teardown executes cleanup tasks when the tests finish running
func (p *pgTester) teardown() error {
var err error
if err = p.dbConn.Close(); err != nil {
return err
}
p.dbConn = nil
if err = p.dropTestDB(); err != nil {
return err
}
return os.Remove(p.pgPassFile)
}
func (p *pgTester) conn() (*sql.DB, error) {
if p.dbConn != nil {
return p.dbConn, nil
}
var err error
p.dbConn, err = sql.Open("postgres", drivers.PostgresBuildQueryString(p.user, p.pass, p.testDBName, p.host, p.port, p.sslmode))
if err != nil {
return nil, err
}
return p.dbConn, nil
}