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serve.go
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serve.go
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// Copyright 2024 Jelly Terra
// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0
// that can be found in the LICENSE file and https://mozilla.org/MPL/2.0/.
package main
import (
"fmt"
"github.com/fsnotify/fsnotify"
. "github.com/webpagine/go-pagine/structure"
"log"
"net/http"
"os"
)
func Serve(addr string, site *Site, publicDir string) error {
watcher, err := fsnotify.NewWatcher()
if err != nil {
return err
}
defer watcher.Close()
fileRelativePaths, err := site.Root.IterateFilesAsRelative()
if err != nil {
return err
}
for _, relativePath := range fileRelativePaths {
err = watcher.Add(site.Root.AbsolutePathOf(relativePath))
if err != nil {
return err
}
}
done := make(chan struct{}, 1)
defer close(done)
// Handle file changes.
go func() {
gen := func() {
err := func() error {
report, err := site.GenerateAll(publicDir)
if err != nil {
return err
}
PrintReport(report)
return nil
}()
if err != nil {
fmt.Fprintln(os.Stderr, err)
}
fmt.Println("Executed full generation.")
}
gen()
for {
select {
case <-watcher.Events:
// TODO Incremental generation.
// Full generation.
log.Println("Detected file change.")
gen()
case <-done:
return
}
}
}()
err = http.ListenAndServe(addr, http.FileServer(http.Dir(publicDir)))
if err != nil {
return err
}
return nil
}