117 lines
2.2 KiB
Go
117 lines
2.2 KiB
Go
package main
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import (
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"fmt"
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_ "html/template"
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"log"
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"net/http"
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"os"
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"path/filepath"
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"strings"
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"sync"
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txttemplate "text/template"
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"github.com/russross/blackfriday"
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fsnotify "gopkg.in/fsnotify.v1"
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)
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var SUFFIXES = [3]string{".md", ".mkd", ".markdown"}
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var toc []string
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var toc_mutex sync.Mutex
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var rootTmpl *txttemplate.Template
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var path string
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func init() {
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var err error
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rootTmpl, err = txttemplate.New("root").Parse(rootTemplate)
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if err != nil {
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log.Fatal(err)
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}
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}
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func HasMarkdownSuffix(s string) bool {
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for _, suffix := range SUFFIXES {
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if strings.HasSuffix(strings.ToLower(s), suffix) {
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return true
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}
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}
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return false
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}
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func AddWatch(w *fsnotify.Watcher) filepath.WalkFunc {
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return func(path string, info os.FileInfo, err error) error {
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if err != nil {
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return err
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}
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if info.IsDir() {
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w.Add(path)
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} else {
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if HasMarkdownSuffix(path) {
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toc_mutex.Lock()
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toc = append(toc, path)
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toc_mutex.Unlock()
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log.Println("Found", path)
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w.Add(path)
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}
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}
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return nil
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}
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}
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func WatcherEventLoop(w *fsnotify.Watcher, done chan bool) {
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for {
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select {
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case event := <-w.Events:
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log.Println("Event:", event)
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// TODO(barakmich): On directory creation, stat path if directory, and watch it.
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if HasMarkdownSuffix(event.Name) {
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}
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case err := <-w.Errors:
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log.Println("Error:", err)
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done <- true
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}
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}
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}
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func RootFunc(w http.ResponseWriter, r *http.Request) {
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toc_mutex.Lock()
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localToc := toc[:]
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toc_mutex.Unlock()
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for i, s := range localToc {
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s = strings.TrimPrefix(s, path)
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localToc[i] = "* " + s
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}
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tocmkd := strings.Join(localToc, "\n")
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bytes := blackfriday.MarkdownCommon([]byte(tocmkd))
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rootTmpl.Execute(w, string(bytes))
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}
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func main() {
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path = os.Getenv("PWD")
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if len(os.Args) > 1 {
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path = os.Args[1]
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}
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watcher, err := fsnotify.NewWatcher()
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if err != nil {
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log.Fatal(err)
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}
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defer watcher.Close()
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done := make(chan bool)
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go WatcherEventLoop(watcher, done)
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log.Println("Watching directory", path)
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err = filepath.Walk(path, AddWatch(watcher))
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if err != nil {
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log.Fatal(err)
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}
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fmt.Println(toc)
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fmt.Println(blackfriday.HTML_TOC)
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http.HandleFunc("/", RootFunc)
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http.ListenAndServe(":8080", nil)
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}
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