Hilbish/cmd/docgen/docgen.go

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package main
import (
"fmt"
"path/filepath"
"go/ast"
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"go/doc"
"go/parser"
"go/token"
"strings"
"os"
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)
type EmmyPiece struct {
FuncName string
Docs []string
Params []string // we only need to know param name to put in function
}
type DocPiece struct {
Doc []string
FuncSig string
FuncName string
}
// feel free to clean this up
// it works, dont really care about the code
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func main() {
fset := token.NewFileSet()
os.Mkdir("docs", 0777)
os.Mkdir("emmyLuaDocs", 0777)
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dirs := []string{"./"}
filepath.Walk("golibs/", func (path string, info os.FileInfo, err error) error {
if !info.IsDir() {
return nil
}
dirs = append(dirs, "./" + path)
return nil
})
pkgs := make(map[string]*ast.Package)
for _, path := range dirs {
d, err := parser.ParseDir(fset, path, nil, parser.ParseComments)
if err != nil {
fmt.Println(err)
return
}
for k, v := range d {
pkgs[k] = v
}
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}
prefix := map[string]string{
"hilbish": "hl",
"fs": "f",
"commander": "c",
"bait": "b",
"terminal": "term",
}
docs := make(map[string][]DocPiece)
emmyDocs := make(map[string][]EmmyPiece)
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for l, f := range pkgs {
p := doc.New(f, "./", doc.AllDecls)
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for _, t := range p.Funcs {
mod := l
if strings.HasPrefix(t.Name, "hl") { mod = "hilbish" }
if !strings.HasPrefix(t.Name, prefix[mod]) || t.Name == "Loader" { continue }
parts := strings.Split(strings.TrimSpace(t.Doc), "\n")
funcsig := parts[0]
doc := parts[1:]
funcdoc := []string{}
em := EmmyPiece{FuncName: strings.TrimPrefix(t.Name, prefix[mod])}
for _, d := range doc {
if strings.HasPrefix(d, "---") {
emmyLine := strings.TrimSpace(strings.TrimPrefix(d, "---"))
emmyLinePieces := strings.Split(emmyLine, " ")
emmyType := emmyLinePieces[0]
if emmyType == "@param" {
em.Params = append(em.Params, emmyLinePieces[1])
}
if emmyType == "@vararg" {
em.Params = append(em.Params, "...") // add vararg
}
em.Docs = append(em.Docs, d)
} else {
funcdoc = append(funcdoc, d)
}
}
dps := DocPiece{
Doc: funcdoc,
FuncSig: funcsig,
FuncName: strings.TrimPrefix(t.Name, prefix[mod]),
}
docs[mod] = append(docs[mod], dps)
emmyDocs[mod] = append(emmyDocs[mod], em)
}
for _, t := range p.Types {
for _, m := range t.Methods {
if !strings.HasPrefix(m.Name, prefix[l]) || m.Name == "Loader" { continue }
parts := strings.Split(strings.TrimSpace(m.Doc), "\n")
funcsig := parts[0]
doc := parts[1:]
funcdoc := []string{}
em := EmmyPiece{FuncName: strings.TrimPrefix(m.Name, prefix[l])}
for _, d := range doc {
if strings.HasPrefix(d, "---") {
emmyLine := strings.TrimSpace(strings.TrimPrefix(d, "---"))
emmyLinePieces := strings.Split(emmyLine, " ")
emmyType := emmyLinePieces[0]
if emmyType == "@param" {
em.Params = append(em.Params, emmyLinePieces[1])
}
if emmyType == "@vararg" {
em.Params = append(em.Params, "...") // add vararg
}
em.Docs = append(em.Docs, d)
} else {
funcdoc = append(funcdoc, d)
}
}
dps := DocPiece{
Doc: funcdoc,
FuncSig: funcsig,
FuncName: strings.TrimPrefix(m.Name, prefix[l]),
}
docs[l] = append(docs[l], dps)
emmyDocs[l] = append(emmyDocs[l], em)
}
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}
}
for mod, v := range docs {
if mod == "main" { continue }
f, _ := os.Create("docs/" + mod + ".txt")
for _, dps := range v {
f.WriteString(dps.FuncSig + " > ")
for _, doc := range dps.Doc {
if !strings.HasPrefix(doc, "---") {
f.WriteString(doc + "\n")
}
}
f.WriteString("\n")
}
}
for mod, v := range emmyDocs {
if mod == "main" { continue }
f, _ := os.Create("emmyLuaDocs/" + mod + ".lua")
f.WriteString("--- @meta\n\nlocal " + mod + " = {}\n\n")
for _, em := range v {
var funcdocs []string
for _, dps := range docs[mod] {
if dps.FuncName == em.FuncName {
funcdocs = dps.Doc
}
}
f.WriteString("--- " + strings.Join(funcdocs, "\n--- ") + "\n")
if len(em.Docs) != 0 {
f.WriteString(strings.Join(em.Docs, "\n") + "\n")
}
f.WriteString("function " + mod + "." + em.FuncName + "(" + strings.Join(em.Params, ", ") + ") end\n\n")
}
f.WriteString("return " + mod + "\n")
}
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}