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
|
// Command usql is the universal command-line interface for SQL databases.
package main
//go:generate go run gen.go
import (
"context"
"errors"
"fmt"
"io"
"os"
"strings"
"github.com/xo/usql/drivers"
"github.com/xo/usql/handler"
"github.com/xo/usql/internal"
"github.com/xo/usql/rline"
"github.com/xo/usql/text"
)
func main() {
// get available drivers and known build tags
available, known := drivers.Available(), internal.KnownBuildTags()
// report if database is supported
if len(os.Args) == 2 &&
strings.HasPrefix(os.Args[1], "--has-") &&
strings.HasSuffix(os.Args[1], "-support") {
n := os.Args[1][6 : len(os.Args[1])-8]
if v, ok := known[n]; ok {
n = v
}
var out int
if _, ok := available[n]; ok {
out = 1
}
fmt.Fprint(os.Stdout, out)
return
}
// run
if err := New(os.Args).ExecuteContext(context.Background()); err != nil && err != io.EOF && err != rline.ErrInterrupt {
var he *handler.Error
if !errors.As(err, &he) {
fmt.Fprintf(os.Stderr, "error: %v\n", err)
}
var e *drivers.Error
if errors.As(err, &e) && e.Err == text.ErrDriverNotAvailable {
m := make(map[string]string, len(known))
for k, v := range known {
m[v] = k
}
tag := e.Driver
if t, ok := m[tag]; ok {
tag = t
}
rev := "latest"
if text.CommandVersion == "0.0.0-dev" || strings.Contains(text.CommandVersion, "-") {
rev = "master"
}
fmt.Fprintf(os.Stderr, "\ntry:\n\n go install -tags 'most %s' github.com/xo/usql@%s\n\n", tag, rev)
}
switch estr := err.Error(); {
case err == text.ErrWrongNumberOfArguments,
strings.HasPrefix(estr, "unknown flag:"),
strings.HasPrefix(estr, "unknown shorthand flag:"),
strings.HasPrefix(estr, "bad flag syntax:"),
strings.HasPrefix(estr, "flag needs an argument:"):
fmt.Fprintln(os.Stderr, text.CommandHelpHint)
}
os.Exit(1)
}
}
|
