forked from tmc/grpcutil
/
main.go
80 lines (75 loc) · 2.63 KB
/
main.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
package main
import (
"flag"
"io/ioutil"
"log"
"os"
"strings"
"github.com/btcsuite/golangcrypto/ssh/terminal"
"github.com/golang/protobuf/proto"
"github.com/pkg/errors"
"github.com/tmc/grpcutil/protoc-gen-tstypes/gentstypes"
)
var (
flagVerbose = flag.Int("v", 0, "verbosity level")
flagDeclareNamespace = flag.Bool("declare_namespace", true, "if true, generate a namespace declaration")
flagAsyncIterators = flag.Bool("async_iterators", false, "if true, user async iterators")
flagEnumsAsInts = flag.Bool("int_enums", false, "if true, generate numeric enums")
flagOriginalNames = flag.Bool("original_names", false, "if true, use original proto file field names, otherwise convert to lowerCamelCase")
flagOutputFilenamePattern = flag.String("outpattern", "{{.Dir}}/{{.Descriptor.GetPackage | default \"none\"}}.{{.BaseName}}.d.ts", "output filename pattern")
flagDumpDescriptor = flag.Bool("dump_request_descriptor", false, "if true, dump request descriptor")
)
func main() {
g := gentstypes.New()
if terminal.IsTerminal(0) {
flag.Usage()
log.Fatalln("stdin appears to be a tty device. This tool is meant to be invoked via the protoc command via a --tstypes_out directive.")
}
data, err := ioutil.ReadAll(os.Stdin)
if err != nil {
log.Fatalln(errors.Wrap(err, "reading input"))
}
if err := proto.Unmarshal(data, g.Request); err != nil {
log.Fatalln(errors.Wrap(err, "parsing input"))
}
if len(g.Request.FileToGenerate) == 0 {
log.Fatalln(errors.Wrap(err, "no files to generate"))
}
parseFlags(g.Request.Parameter)
g.GenerateAllFiles(&gentstypes.Parameters{
AsyncIterators: *flagAsyncIterators,
DeclareNamespace: *flagDeclareNamespace,
Verbose: *flagVerbose,
OutputNamePattern: *flagOutputFilenamePattern,
EnumsAsInt: *flagEnumsAsInts,
OriginalNames: *flagOriginalNames,
DumpRequestDescriptor: *flagDumpDescriptor,
})
data, err = proto.Marshal(g.Response)
if err != nil {
log.Fatalln(errors.Wrap(err, "failed to marshal output proto"))
}
_, err = os.Stdout.Write(data)
if err != nil {
log.Fatalln(errors.Wrap(err, "failed to write output proto"))
}
}
func parseFlags(s *string) {
if s == nil {
return
}
for _, p := range strings.Split(*s, ",") {
spec := strings.SplitN(p, "=", 2)
if len(spec) == 1 {
if err := flag.CommandLine.Set(spec[0], ""); err != nil {
log.Fatalln("Cannot set flag", p, err)
}
continue
}
name, value := spec[0], spec[1]
// TODO: consider supporting package mapping (M flag)
if err := flag.CommandLine.Set(name, value); err != nil {
log.Fatalln("Cannot set flag", p)
}
}
}