alice.pds.demo.boltless.dev
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1package xrpc
2
3import (
4 "fmt"
5 "net/http"
6 "runtime/debug"
7
8 "tangled.org/core/api/tangled"
9 "tangled.org/core/consts"
10)
11
12// version is set during build time.
13var version string
14
15var knotCapabilities = []string{
16 string(consts.CapKnotACL),
17 string(consts.CapKeepCommit),
18}
19
20func (x *Xrpc) Version(w http.ResponseWriter, r *http.Request) {
21 if version == "" {
22 info, ok := debug.ReadBuildInfo()
23 if !ok {
24 http.Error(w, "failed to read build info", http.StatusInternalServerError)
25 return
26 }
27
28 modVer := info.Main.Version
29 if modVer == "" || modVer == "(devel)" {
30 modVer = "(devel)"
31 }
32
33 var sha string
34 var modified bool
35 for _, setting := range info.Settings {
36 switch setting.Key {
37 case "vcs.revision":
38 sha = setting.Value
39 case "vcs.modified":
40 modified = setting.Value == "true"
41 }
42 }
43
44 if sha == "" {
45 version = modVer
46 } else if modified {
47 version = fmt.Sprintf("%s (%s with modifications)", modVer, sha)
48 } else {
49 version = fmt.Sprintf("%s (%s)", modVer, sha)
50 }
51 }
52
53 response := tangled.KnotVersion_Output{
54 Version: version,
55 Capabilities: knotCapabilities,
56 }
57
58 x.writeJson(w, response)
59}