ebiten/_docs/gen.go
2016-10-21 00:12:31 +09:00

348 lines
7.7 KiB
Go

// Copyright 2014 Hajime Hoshi
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build ignore
package main
import (
"fmt"
"html/template"
"io/ioutil"
"log"
"os"
"os/exec"
"path/filepath"
"regexp"
"strconv"
"strings"
"github.com/hajimehoshi/ebiten/internal"
)
func execute(command string, args ...string) error {
cmd := exec.Command(command, args...)
stderr, err := cmd.StderrPipe()
if err != nil {
return err
}
if err := cmd.Start(); err != nil {
return err
}
msg, err := ioutil.ReadAll(stderr)
if err != nil {
return err
}
if err := cmd.Wait(); err != nil {
return fmt.Errorf("%v: %s", err, string(msg))
}
return nil
}
var (
copyright = ""
stableVersion = ""
devVersion = ""
)
func init() {
year, err := internal.LicenseYear()
if err != nil {
panic(err)
}
copyright = fmt.Sprintf("© %d Hajime Hoshi", year)
}
func init() {
b, err := exec.Command("git", "tag").Output()
if err != nil {
panic(err)
}
lastStableVersion := ""
lastCommitTime := 0
for _, tag := range strings.Split(string(b), "\n") {
m := regexp.MustCompile(`^v(\d.+)$`).FindStringSubmatch(tag)
if m == nil {
continue
}
t, err := exec.Command("git", "log", tag, "-1", "--format=%ct").Output()
if err != nil {
panic(err)
}
tt, err := strconv.Atoi(strings.TrimSpace(string(t)))
if err != nil {
panic(err)
}
if lastCommitTime >= tt {
continue
}
lastCommitTime = tt
lastStableVersion = m[1]
}
// See the HEAD commit time
stableVersion = lastStableVersion
}
func init() {
b, err := exec.Command("git", "show", "master:version.txt").Output()
if err != nil {
panic(err)
}
devVersion = strings.TrimSpace(string(b))
}
func comment(text string) template.HTML {
// http://www.w3.org/TR/html-markup/syntax.html#comments
// The text part of comments has the following restrictions:
// * must not start with a ">" character
// * must not start with the string "->"
// * must not contain the string "--"
// * must not end with a "-" character
for strings.HasPrefix(text, ">") {
text = text[1:]
}
for strings.HasPrefix(text, "->") {
text = text[2:]
}
text = strings.Replace(text, "--", "", -1)
for strings.HasSuffix(text, "-") {
text = text[:len(text)-1]
}
return template.HTML("<!--\n" + text + "\n-->")
}
func safeHTML(text string) template.HTML {
return template.HTML(text)
}
type example struct {
Name string
ThumbWidth int
ThumbHeight int
}
func (e *example) Width() int {
return e.ThumbWidth * 2
}
func (e *example) Height() int {
return e.ThumbHeight * 2
}
const commentForBlocks = `// Please read examples/blocks/main.go and examples/blocks/blocks/*.go
// NOTE: If Gamepad API is available in your browswer, you can use gamepads. Try it out!`
func (e *example) Source() string {
if e.Name == "blocks" {
return commentForBlocks
}
path := filepath.Join(os.Getenv("GOPATH"), "src", "github.com", "hajimehoshi", "ebiten", "examples", e.Name, "main.go")
b, err := ioutil.ReadFile(path)
if err != nil {
panic(err)
}
str := regexp.MustCompile("(?s)^.*?\n\n").ReplaceAllString(string(b), "")
str = strings.Replace(str, "\t", " ", -1)
return str
}
func versions() string {
return fmt.Sprintf("v%s (dev: v%s)", stableVersion, devVersion)
}
var examples = []example{
{"alphablending", 320, 240},
{"audio", 320, 240},
{"font", 320, 240},
{"hsv", 320, 240},
{"hue", 320, 240},
{"gamepad", 320, 240},
{"infinitescroll", 320, 240},
{"keyboard", 320, 240},
{"life", 320, 240},
{"masking", 320, 240},
{"mosaic", 320, 240},
{"noise", 320, 240},
{"paint", 320, 240},
{"perspective", 320, 240},
{"piano", 320, 240},
{"rotate", 320, 240},
{"sprites", 320, 240},
{"blocks", 256, 240},
}
func clear() error {
if err := filepath.Walk("public", func(path string, info os.FileInfo, err error) error {
if err != nil {
return err
}
if m, _ := regexp.MatchString("~$", path); m {
return nil
}
// Remove auto-generated html files.
m, err := regexp.MatchString(".html$", path)
if err != nil {
return err
}
if m {
return os.Remove(path)
}
// Remove example resources that are copied.
m, err = regexp.MatchString("^public/examples/_resources/images$", path)
if err != nil {
return err
}
if m {
if err := os.RemoveAll(path); err != nil {
return err
}
return filepath.SkipDir
}
return nil
}); err != nil {
return err
}
return nil
}
func outputMain() error {
f, err := os.Create("public/index.html")
if err != nil {
return err
}
defer f.Close()
funcs := template.FuncMap{
"comment": comment,
"safeHTML": safeHTML,
}
const templatePath = "index.tmpl.html"
name := filepath.Base(templatePath)
t, err := template.New(name).Funcs(funcs).ParseFiles(templatePath)
if err != nil {
return err
}
data := map[string]interface{}{
"Copyright": copyright,
"StableVersion": stableVersion,
"DevVersion": devVersion,
"Examples": examples,
}
return t.Funcs(funcs).Execute(f, data)
}
func outputExampleImages() error {
// TODO: Using cp command might not be portable.
// Use io.Copy instead.
const dir = "public/examples"
if err := os.MkdirAll(dir, 0755); err != nil {
return err
}
return execute("cp", "-R", "../examples/_resources/images", "public/examples/_resources/images")
}
func outputExampleContent(e *example) error {
const dir = "public/examples"
if err := os.MkdirAll(dir, 0755); err != nil {
return err
}
f, err := os.Create(filepath.Join(dir, e.Name+".content.html"))
if err != nil {
return err
}
defer f.Close()
funcs := template.FuncMap{
"comment": comment,
"safeHTML": safeHTML,
}
const templatePath = "examplecontent.tmpl.html"
name := filepath.Base(templatePath)
t, err := template.New(name).Funcs(funcs).ParseFiles(templatePath)
if err != nil {
return err
}
data := map[string]interface{}{
"Copyright": copyright,
"Example": e,
}
if err := t.Funcs(funcs).Execute(f, data); err != nil {
return err
}
out := filepath.Join(dir, e.Name+".js")
path := "github.com/hajimehoshi/ebiten/examples/" + e.Name
if err := execute("gopherjs", "build", "--tags", "example", "-m", "-o", out, path); err != nil {
return err
}
return nil
}
func outputExample(e *example) error {
const dir = "public/examples"
if err := os.MkdirAll(dir, 0755); err != nil {
return err
}
f, err := os.Create(filepath.Join(dir, e.Name+".html"))
if err != nil {
return err
}
defer f.Close()
funcs := template.FuncMap{
"comment": comment,
"safeHTML": safeHTML,
}
const templatePath = "example.tmpl.html"
name := filepath.Base(templatePath)
t, err := template.New(name).Funcs(funcs).ParseFiles(templatePath)
if err != nil {
return err
}
data := map[string]interface{}{
"Copyright": copyright,
"Example": e,
}
return t.Funcs(funcs).Execute(f, data)
}
func main() {
// Do not call temporarily.
// TODO: Uncomment this out after 1.4 stable is released.
// docs/examples/_resource/images/arcade.png should also be remove.
/*if err := clear(); err != nil {
log.Fatal(err)
}*/
if err := outputMain(); err != nil {
log.Fatal(err)
}
if err := outputExampleImages(); err != nil {
log.Fatal(err)
}
for _, e := range examples {
if err := outputExampleContent(&e); err != nil {
log.Fatal(err)
}
if err := outputExample(&e); err != nil {
log.Fatal(err)
}
}
}