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// Copyright © 2013 Steve Francia <spf@spf13.com>.
//
// Licensed under the Simple Public 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://opensource.org/licenses/Simple-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.
package main
import (
"./hugolib"
"flag"
"fmt"
"github.com/howeyc/fsnotify"
"net/http"
"os"
"path/filepath"
"runtime/pprof"
"sync"
"time"
)
const (
cfgFiledefault = "config.yaml"
)
var (
baseUrl = flag.String("b", "", "hostname (and path) to the root eg. http://spf13.com/")
cfgfile = flag.String("c", cfgFiledefault, "config file (default is path/config.yaml)")
checkMode = flag.Bool("k", false, "analyze content and provide feedback")
draft = flag.Bool("d", false, "include content marked as draft")
help = flag.Bool("h", false, "show this help")
path = flag.String("p", "", "filesystem path to read files relative from")
verbose = flag.Bool("v", false, "verbose output")
version = flag.Bool("version", false, "which version of hugo")
cpuprofile = flag.Int("cpuprofile", 0, "Number of times to create the site and profile it")
watchMode = flag.Bool("w", false, "watch filesystem for changes and recreate as needed")
server = flag.Bool("s", false, "run a (very) simple web server")
port = flag.String("port", "1313", "port to run web server on, default :1313")
)
func usage() {
PrintErr("usage: hugo [flags]", "")
flag.PrintDefaults()
os.Exit(2)
}
func main() {
flag.Usage = usage
flag.Parse()
if *help {
usage()
}
config := hugolib.SetupConfig(cfgfile, path)
config.BuildDrafts = *draft
if *baseUrl != "" {
config.BaseUrl = *baseUrl
} else if *server {
config.BaseUrl = "http://localhost:" + *port
}
if *version {
fmt.Println("Hugo Static Site Generator v0.8")
}
if *cpuprofile != 0 {
f, err := os.Create("/tmp/hugo-cpuprofile")
if err != nil {
panic(err)
}
pprof.StartCPUProfile(f)
defer pprof.StopCPUProfile()
for i := 0; i < *cpuprofile; i++ {
_ = buildSite(config)
}
}
if *checkMode {
site := hugolib.NewSite(config)
site.Analyze()
os.Exit(2)
}
if *watchMode {
fmt.Println("Watching for changes. Press ctrl+c to stop")
_ = buildSite(config)
err := NewWatcher(config, *port, *server)
if err != nil {
fmt.Println(err)
}
}
_ = buildSite(config)
if *server {
serve(*port, config)
}
}
func serve(port string, config *hugolib.Config) {
fmt.Println("Web Server is available at http://localhost:" + port)
fmt.Println("Press ctrl+c to stop")
panic(http.ListenAndServe(":"+port, http.FileServer(http.Dir(config.PublishDir))))
}
func buildSite(config *hugolib.Config) *hugolib.Site {
startTime := time.Now()
site := hugolib.NewSite(config)
site.Build()
site.Stats()
fmt.Printf("in %v ms\n", int(1000 * time.Since(startTime).Seconds()))
return site
}
func watchChange(c *hugolib.Config) {
fmt.Println("Change detected, rebuilding site\n")
buildSite(c)
}
func NewWatcher(c *hugolib.Config, port string, server bool) error {
watcher, err := fsnotify.NewWatcher()
var wg sync.WaitGroup
if err != nil {
return err
fmt.Println(err)
}
defer watcher.Close()
wg.Add(1)
go func() {
for {
select {
case ev := <-watcher.Event:
var _ = ev
watchChange(c)
// TODO add newly created directories to the watch list
case err := <-watcher.Error:
if err != nil {
fmt.Println("error:", err)
}
}
}
}()
for _, d := range getDirList(c) {
if d != "" {
_ = watcher.Watch(d)
}
}
if server {
go serve(port, c)
}
wg.Wait()
return nil
}
func getDirList(c *hugolib.Config) []string {
var a []string
walker := func(path string, fi os.FileInfo, err error) error {
if err != nil {
PrintErr("Walker: ", err)
return nil
}
if fi.IsDir() {
a = append(a, path)
}
return nil
}
filepath.Walk(c.GetAbsPath(c.SourceDir), walker)
filepath.Walk(c.GetAbsPath(c.LayoutDir), walker)
return a
}
func PrintErr(str string, a ...interface{}) {
fmt.Fprintln(os.Stderr, str, a)
}
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