doc generation: refactor to allow multi-stage processing
Signed-off-by: Andrea Luzzardi <aluzzardi@gmail.com>
This commit is contained in:
Andrea Luzzardi
parent
b8f9c0ee67
commit
ee8bcfafaa
@ -4,7 +4,6 @@ import (
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"context"
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"encoding/json"
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"fmt"
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"io"
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"io/fs"
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"os"
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"path"
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@ -32,25 +31,217 @@ const (
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textPadding = " "
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)
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// types used for json generation
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type ValueJSON struct {
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type Value struct {
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Name string
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Type string
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Description string
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}
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type FieldJSON struct {
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type Field struct {
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Name string
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Description string
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Inputs []ValueJSON
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Outputs []ValueJSON
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Inputs []Value
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Outputs []Value
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}
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type PackageJSON struct {
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type Package struct {
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Name string
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Description string
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Fields []FieldJSON
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Fields []Field
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}
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func Parse(ctx context.Context, packageName string, val *compiler.Value) *Package {
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lg := log.Ctx(ctx)
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parseValues := func(field string, values []*compiler.Value) []Value {
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val := []Value{}
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for _, i := range values {
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v := Value{}
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v.Name = strings.TrimPrefix(
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i.Path().String(),
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field+".",
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)
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v.Type = common.FormatValue(i)
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v.Description = common.ValueDocOneLine(i)
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val = append(val, v)
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}
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return val
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}
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fields, err := val.Fields(cue.Definitions(true))
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if err != nil {
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lg.Fatal().Err(err).Msg("cannot get fields")
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}
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pkg := &Package{}
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// Package Name + Description
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pkg.Name = packageName
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pkg.Description = common.ValueDocFull(val)
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// Package Fields
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for _, f := range fields {
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field := Field{}
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if !f.Selector.IsDefinition() {
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// not a definition, skipping
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continue
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}
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name := f.Label()
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v := f.Value
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if v.Cue().IncompleteKind() != cue.StructKind {
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// not a struct, skipping
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continue
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}
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// Field Name + Description
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field.Name = name
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field.Description = common.ValueDocOneLine(v)
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// Inputs
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inp := environment.ScanInputs(ctx, v)
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field.Inputs = parseValues(field.Name, inp)
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// Outputs
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out := environment.ScanOutputs(ctx, v)
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field.Outputs = parseValues(field.Name, out)
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pkg.Fields = append(pkg.Fields, field)
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}
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return pkg
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}
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func (p *Package) Format(f string) string {
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switch f {
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case textFormat:
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return p.Text()
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case jsonFormat:
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return p.JSON()
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case markdownFormat:
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return p.Markdown()
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default:
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panic(f)
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}
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}
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func (p *Package) JSON() string {
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data, err := json.MarshalIndent(p, "", " ")
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if err != nil {
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panic(err)
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}
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return fmt.Sprintf("%s\n", data)
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}
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func (p *Package) Text() string {
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w := &strings.Builder{}
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fmt.Fprintf(w, "Package %s\n", p.Name)
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fmt.Fprintf(w, "\n%s\n", p.Description)
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printValuesText := func(values []Value) {
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tw := tabwriter.NewWriter(w, 0, 4, len(textPadding), ' ', 0)
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for _, i := range values {
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fmt.Fprintf(tw, "\t\t%s\t%s\t%s\n",
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i.Name, i.Type, terminalTrim(i.Description))
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}
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tw.Flush()
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}
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// Package Fields
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for _, field := range p.Fields {
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fmt.Fprintf(w, "\n%s\n\n%s%s\n", field.Name, textPadding, field.Description)
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if len(field.Inputs) == 0 {
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fmt.Fprintf(w, "\n%sInputs: none\n", textPadding)
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} else {
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fmt.Fprintf(w, "\n%sInputs:\n", textPadding)
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printValuesText(field.Inputs)
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}
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if len(field.Outputs) == 0 {
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fmt.Fprintf(w, "\n%sOutputs: none\n", textPadding)
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} else {
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fmt.Fprintf(w, "\n%sOutputs:\n", textPadding)
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printValuesText(field.Outputs)
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}
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}
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return w.String()
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}
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func terminalTrim(msg string) string {
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// If we're not running on a terminal, return the whole string
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size, _, err := term.GetSize(1)
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if err != nil {
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return msg
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}
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// Otherwise, trim to fit half the terminal
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size /= 2
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for utf8.RuneCountInString(msg) > size {
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msg = msg[0:len(msg)-4] + "…"
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}
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return msg
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}
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func (p *Package) Markdown() string {
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w := &strings.Builder{}
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fmt.Fprintf(w, "---\nsidebar_label: %s\n---\n\n",
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filepath.Base(p.Name),
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)
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fmt.Fprintf(w, "# %s\n", mdEscape(p.Name))
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if p.Description != "-" {
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fmt.Fprintf(w, "\n%s\n", mdEscape(p.Description))
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}
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printValuesMarkdown := func(values []Value) {
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tw := tabwriter.NewWriter(w, 0, 4, len(textPadding), ' ', 0)
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fmt.Fprintf(tw, "| Name\t| Type\t| Description \t|\n")
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fmt.Fprintf(tw, "| -------------\t|:-------------:\t|:-------------:\t|\n")
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for _, i := range values {
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fmt.Fprintf(tw, "|*%s*\t| `%s`\t|%s\t|\n",
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i.Name,
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mdEscape(i.Type),
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mdEscape(i.Description),
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)
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}
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tw.Flush()
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}
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// Package Fields
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for _, field := range p.Fields {
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fmt.Fprintf(w, "\n## %s\n\n", field.Name)
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if field.Description != "-" {
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fmt.Fprintf(w, "%s\n\n", mdEscape(field.Description))
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}
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fmt.Fprintf(w, "### %s Inputs\n\n", mdEscape(field.Name))
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if len(field.Inputs) == 0 {
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fmt.Fprintf(w, "_No input._\n")
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} else {
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printValuesMarkdown(field.Inputs)
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}
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fmt.Fprintf(w, "\n### %s Outputs\n\n", mdEscape(field.Name))
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if len(field.Outputs) == 0 {
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fmt.Fprintf(w, "_No output._\n")
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} else {
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printValuesMarkdown(field.Outputs)
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}
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}
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return w.String()
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}
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func mdEscape(s string) string {
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escape := []string{"|", "<", ">"}
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for _, c := range escape {
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s = strings.ReplaceAll(s, c, `\`+c)
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}
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return s
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}
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var docCmd = &cobra.Command{
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@ -94,7 +285,8 @@ var docCmd = &cobra.Command{
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if err != nil {
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lg.Fatal().Err(err).Msg("cannot compile code")
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}
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PrintDoc(ctx, os.Stdout, packageName, val, format)
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p := Parse(ctx, packageName, val)
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fmt.Printf("%s", p.Format(format))
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},
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}
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@ -107,34 +299,6 @@ func init() {
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}
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}
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func mdEscape(s string) string {
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escape := []string{"|", "<", ">"}
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for _, c := range escape {
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s = strings.ReplaceAll(s, c, `\`+c)
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}
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return s
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}
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func terminalTrim(msg string) string {
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// If we're not running on a terminal, return the whole string
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size, _, err := term.GetSize(1)
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if err != nil {
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return msg
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}
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// Otherwise, trim to fit half the terminal
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size /= 2
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for utf8.RuneCountInString(msg) > size {
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msg = msg[0:len(msg)-4] + "…"
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}
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return msg
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}
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func formatLabel(name string, val *compiler.Value) string {
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label := val.Path().String()
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return strings.TrimPrefix(label, name+".")
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}
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func loadCode(packageName string) (*compiler.Value, error) {
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sources := map[string]fs.FS{
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stdlib.Path: stdlib.FS,
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@ -148,165 +312,6 @@ func loadCode(packageName string) (*compiler.Value, error) {
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return src, nil
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}
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// printValuesText (text) formats an array of Values on stdout
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func printValuesText(iw io.Writer, libName string, values []*compiler.Value) {
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w := tabwriter.NewWriter(iw, 0, 4, len(textPadding), ' ', 0)
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for _, i := range values {
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docStr := terminalTrim(common.ValueDocOneLine(i))
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fmt.Fprintf(w, "\t\t%s\t%s\t%s\n",
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formatLabel(libName, i), common.FormatValue(i), docStr)
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}
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w.Flush()
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}
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// printValuesMarkdown (markdown) formats an array of Values on stdout
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func printValuesMarkdown(iw io.Writer, libName string, values []*compiler.Value) {
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w := tabwriter.NewWriter(iw, 0, 4, len(textPadding), ' ', 0)
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fmt.Fprintf(w, "| Name\t| Type\t| Description \t|\n")
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fmt.Fprintf(w, "| -------------\t|:-------------:\t|:-------------:\t|\n")
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for _, i := range values {
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fmt.Fprintf(w, "|*%s*\t| `%s`\t|%s\t|\n",
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formatLabel(libName, i),
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mdEscape(common.FormatValue(i)),
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mdEscape(common.ValueDocOneLine(i)))
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}
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w.Flush()
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}
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// printValuesJson fills a struct for json output
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func valuesToJSON(libName string, values []*compiler.Value) []ValueJSON {
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val := []ValueJSON{}
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for _, i := range values {
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v := ValueJSON{}
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v.Name = formatLabel(libName, i)
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v.Type = common.FormatValue(i)
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v.Description = common.ValueDocOneLine(i)
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val = append(val, v)
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}
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return val
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}
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func PrintDoc(ctx context.Context, w io.Writer, packageName string, val *compiler.Value, format string) {
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lg := log.Ctx(ctx)
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fields, err := val.Fields(cue.Definitions(true))
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if err != nil {
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lg.Fatal().Err(err).Msg("cannot get fields")
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}
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packageJSON := &PackageJSON{}
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// Package Name + Description
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switch format {
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case textFormat:
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fmt.Fprintf(w, "Package %s\n", packageName)
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fmt.Fprintf(w, "\n%s\n", common.ValueDocFull(val))
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case markdownFormat:
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fmt.Fprintf(w, "---\nsidebar_label: %s\n---\n\n",
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filepath.Base(packageName),
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)
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fmt.Fprintf(w, "# %s\n", mdEscape(packageName))
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comment := common.ValueDocFull(val)
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if comment == "-" {
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break
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}
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fmt.Fprintf(w, "\n%s\n", mdEscape(comment))
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case jsonFormat:
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packageJSON.Name = packageName
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comment := common.ValueDocFull(val)
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if comment != "-" {
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packageJSON.Description = comment
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}
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}
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// Package Fields
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for _, field := range fields {
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fieldJSON := FieldJSON{}
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if !field.Selector.IsDefinition() {
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// not a definition, skipping
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continue
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}
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name := field.Label()
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v := field.Value
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if v.Cue().IncompleteKind() != cue.StructKind {
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// not a struct, skipping
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continue
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}
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// Field Name + Description
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comment := common.ValueDocOneLine(v)
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switch format {
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case textFormat:
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fmt.Fprintf(w, "\n%s\n\n%s%s\n", name, textPadding, comment)
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case markdownFormat:
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fmt.Fprintf(w, "\n## %s\n\n", name)
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if comment != "-" {
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fmt.Fprintf(w, "%s\n\n", mdEscape(comment))
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}
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case jsonFormat:
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fieldJSON.Name = name
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comment := common.ValueDocOneLine(val)
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if comment != "-" {
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fieldJSON.Description = comment
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}
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}
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// Inputs
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inp := environment.ScanInputs(ctx, v)
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switch format {
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case textFormat:
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if len(inp) == 0 {
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fmt.Fprintf(w, "\n%sInputs: none\n", textPadding)
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break
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}
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fmt.Fprintf(w, "\n%sInputs:\n", textPadding)
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printValuesText(w, name, inp)
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case markdownFormat:
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fmt.Fprintf(w, "### %s Inputs\n\n", mdEscape(name))
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if len(inp) == 0 {
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fmt.Fprintf(w, "_No input._\n")
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break
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}
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printValuesMarkdown(w, name, inp)
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case jsonFormat:
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fieldJSON.Inputs = valuesToJSON(name, inp)
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}
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// Outputs
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out := environment.ScanOutputs(ctx, v)
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switch format {
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case textFormat:
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if len(out) == 0 {
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fmt.Fprintf(w, "\n%sOutputs: none\n", textPadding)
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break
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}
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fmt.Fprintf(w, "\n%sOutputs:\n", textPadding)
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printValuesText(w, name, out)
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case markdownFormat:
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fmt.Fprintf(w, "\n### %s Outputs\n\n", mdEscape(name))
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if len(out) == 0 {
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fmt.Fprintf(w, "_No output._\n")
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break
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}
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printValuesMarkdown(w, name, out)
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case jsonFormat:
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fieldJSON.Outputs = valuesToJSON(name, out)
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packageJSON.Fields = append(packageJSON.Fields, fieldJSON)
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}
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}
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if format == jsonFormat {
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data, err := json.MarshalIndent(packageJSON, "", " ")
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if err != nil {
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lg.Fatal().Err(err).Msg("json marshal")
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}
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fmt.Fprintf(w, "%s\n", data)
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}
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}
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// walkStdlib generate whole docs from stdlib walk
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func walkStdlib(ctx context.Context, output, format string) {
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lg := log.Ctx(ctx)
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@ -327,9 +332,9 @@ func walkStdlib(ctx context.Context, output, format string) {
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return err
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}
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pkg := fmt.Sprintf("dagger.io/%s", p)
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lg.Info().Str("package", pkg).Str("format", format).Msg("generating doc")
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val, err := loadCode(pkg)
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pkgName := fmt.Sprintf("dagger.io/%s", p)
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lg.Info().Str("package", pkgName).Str("format", format).Msg("generating doc")
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val, err := loadCode(pkgName)
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if err != nil {
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if strings.Contains(err.Error(), "no CUE files") {
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lg.Warn().Str("package", p).Err(err).Msg("ignoring")
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@ -344,7 +349,8 @@ func walkStdlib(ctx context.Context, output, format string) {
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}
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defer f.Close()
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PrintDoc(ctx, f, pkg, val, format)
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pkg := Parse(ctx, pkgName, val)
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fmt.Fprintf(f, "%s", pkg.Format(format))
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return nil
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})
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