diff options
Diffstat (limited to 'internal/options')
| -rw-r--r-- | internal/options/option.go | 5 | ||||
| -rw-r--r-- | internal/options/process.go | 224 |
2 files changed, 4 insertions, 225 deletions
diff --git a/internal/options/option.go b/internal/options/option.go index a43dd49..b7fe818 100644 --- a/internal/options/option.go +++ b/internal/options/option.go @@ -14,6 +14,7 @@ type Link struct { type NixOption struct { Option string + Source string Declarations []Link Default *NixValue `json:",omitempty"` @@ -24,4 +25,6 @@ type NixOption struct { Type string } -type NixOptions []NixOption +func (*NixOption) BleveType() string { + return "option" +} diff --git a/internal/options/process.go b/internal/options/process.go deleted file mode 100644 index 4e7c664..0000000 --- a/internal/options/process.go +++ /dev/null @@ -1,224 +0,0 @@ -package options - -import ( - "encoding/json" - "fmt" - "io" - "log/slog" - "net/url" - "os" - "reflect" - - "github.com/bcicen/jstream" - "github.com/mitchellh/mapstructure" - "github.com/pkg/errors" -) - -type nixValueJSON struct { - Type string `mapstructure:"_type"` - Text string -} - -type linkJSON struct { - Name string - URL string `json:"url"` -} - -type nixOptionJSON struct { - Declarations []linkJSON - Default *nixValueJSON - Description string - Example *nixValueJSON - Loc []string - ReadOnly bool - RelatedPackages string - Type string -} - -func ValueTypeToString(valueType jstream.ValueType) string { - switch valueType { - case jstream.Unknown: - return "unknown" - case jstream.Null: - return "null" - case jstream.String: - return "string" - case jstream.Number: - return "number" - case jstream.Boolean: - return "boolean" - case jstream.Array: - return "array" - case jstream.Object: - return "object" - } - - return "very strange" -} - -func makeGitHubFileURL(userRepo string, ref string, subPath string) string { - url, _ := url.JoinPath("https://github.com/", userRepo, "blob", ref, subPath) - - return url -} - -// make configurable? -var channelRepoMap = map[string]string{ - "nixpkgs": "NixOS/nixpkgs", - "nix-darwin": "LnL7/nix-darwin", - "home-manager": "nix-community/home-manager", -} - -func MakeChannelLink(channel string, ref string, subPath string) (*Link, error) { - if channelRepoMap[channel] == "" { - return nil, fmt.Errorf("don't know what repository relates to channel <%s>", channel) - } - - return &Link{ - Name: fmt.Sprintf("<%s/%s>", channel, subPath), - URL: makeGitHubFileURL(channelRepoMap[channel], ref, subPath), - }, nil -} - -func convertNixValue(nj *nixValueJSON) *NixValue { - if nj == nil { - return nil - } - switch nj.Type { - case "", "literalExpression": - return &NixValue{ - Text: nj.Text, - } - case "literalMD": - return &NixValue{ - Markdown: Markdown(nj.Text), - } - default: - slog.Warn("got unexpected NixValue type", "type", nj.Type, "text", nj.Text) - - return nil - } -} - -func Process(inpath string, outpath string, channel string, revision string) error { - infile, err := os.Open(inpath) - if err != nil { - return errors.WithMessagef(err, "failed to open input file %s", inpath) - } - defer infile.Close() - outfile, err := os.Create(outpath) - if err != nil { - return errors.WithMessagef(err, "failed to open output file %s", outpath) - } - if outpath != "/dev/stdout" { - defer outfile.Close() - } - - dec := jstream.NewDecoder(infile, 1).EmitKV() - var optJSON nixOptionJSON - ms, err := mapstructure.NewDecoder(&mapstructure.DecoderConfig{ - ErrorUnused: true, - ZeroFields: true, - Result: &optJSON, - Squash: true, - DecodeHook: mapstructure.TextUnmarshallerHookFunc(), - }) - if err != nil { - return errors.WithMessage(err, "could not create mapstructure decoder") - } - - _, err = outfile.WriteString("[\n") - if err != nil { - return errors.WithMessage(err, "could not write to output") - } - for mv := range dec.Stream() { - if err := dec.Err(); err != nil { - return errors.WithMessage(err, "could not decode JSON") - } - if mv.ValueType != jstream.Object { - return errors.Errorf("unexpected object type %s", ValueTypeToString(mv.ValueType)) - } - kv := mv.Value.(jstream.KV) - x := kv.Value.(map[string]interface{}) - - var decls []*Link - for _, decl := range x["declarations"].([]interface{}) { - optJSON = nixOptionJSON{} - - switch decl := reflect.ValueOf(decl); decl.Kind() { - case reflect.String: - s := decl.String() - link, err := MakeChannelLink(channel, revision, s) - if err != nil { - return errors.WithMessagef(err, - "could not make a channel link for channel %s, revision %s and subpath %s", - channel, revision, s, - ) - } - decls = append(decls, link) - case reflect.Map: - v := decl.Interface().(map[string]interface{}) - link := Link{ - Name: v["name"].(string), - URL: v["url"].(string), - } - decls = append(decls, &link) - default: - println("kind", decl.Kind().String()) - panic("unexpected object type") - } - } - if len(decls) > 0 { - x["declarations"] = decls - } - - err = ms.Decode(x) // stores in optJSON - if err != nil { - return errors.WithMessagef(err, "failed to decode option %#v", x) - } - - var decs = make([]Link, len(optJSON.Declarations)) - for i, d := range optJSON.Declarations { - decs[i] = Link(d) - } - - opt := NixOption{ - Option: kv.Key, - Declarations: decs, - Default: convertNixValue(optJSON.Default), - Description: Markdown(optJSON.Description), - Example: convertNixValue(optJSON.Example), - RelatedPackages: Markdown(optJSON.RelatedPackages), - Loc: optJSON.Loc, - Type: optJSON.Type, - } - - b, err := json.MarshalIndent(opt, "", " ") - if err != nil { - return errors.WithMessagef(err, "failed to encode option %#v", opt) - } - - _, err = outfile.Write(b) - if err != nil { - return errors.WithMessage(err, "failed to write to output") - } - _, err = outfile.WriteString(",\n") - if err != nil { - return errors.WithMessage(err, "failed to write to output") - } - } - - if outpath != "/dev/stdout" { - _, err = outfile.Seek(-2, io.SeekCurrent) - if err != nil { - return errors.WithMessage(err, "could not write to output") - } - } - - _, err = outfile.WriteString("\n]\n") - if err != nil { - return errors.WithMessage(err, "could not write to output") - } - - return nil -} |