// NewWatcher creates a new watcher to watch filesystem events.
func NewWatcher(port int) error {
if runtime.GOOS == "darwin" {
tweakLimit()
}
watcher, err := watcher.New(1 * time.Second)
var wg sync.WaitGroup
if err != nil {
fmt.Println(err)
return err
}
defer watcher.Close()
wg.Add(1)
for _, d := range getDirList() {
if d != "" {
_ = watcher.Add(d)
}
}
go func() {
for {
select {
case evs := <-watcher.Events:
jww.INFO.Println("File System Event:", evs)
staticChanged := false
dynamicChanged := false
staticFilesChanged := make(map[string]bool)
for _, ev := range evs {
ext := filepath.Ext(ev.Name)
istemp := strings.HasSuffix(ext, "~") || (ext == ".swp") || (ext == ".swx") || (ext == ".tmp") || strings.HasPrefix(ext, ".goutputstream")
if istemp {
continue
}
// renames are always followed with Create/Modify
if ev.Op&fsnotify.Rename == fsnotify.Rename {
continue
}
isstatic := strings.HasPrefix(ev.Name, helpers.GetStaticDirPath()) || (len(helpers.GetThemesDirPath()) > 0 && strings.HasPrefix(ev.Name, helpers.GetThemesDirPath()))
staticChanged = staticChanged || isstatic
dynamicChanged = dynamicChanged || !isstatic
if isstatic {
if staticPath, err := helpers.MakeStaticPathRelative(ev.Name); err == nil {
staticFilesChanged[staticPath] = true
}
}
// add new directory to watch list
if s, err := os.Stat(ev.Name); err == nil && s.Mode().IsDir() {
if ev.Op&fsnotify.Create == fsnotify.Create {
watcher.Add(ev.Name)
}
}
}
if staticChanged {
jww.FEEDBACK.Printf("Static file changed, syncing\n\n")
utils.StopOnErr(copyStatic(), fmt.Sprintf("Error copying static files to %s", helpers.AbsPathify(viper.GetString("PublishDir"))))
if !BuildWatch && !viper.GetBool("DisableLiveReload") {
// Will block forever trying to write to a channel that nobody is reading if livereload isn't initalized
// force refresh when more than one file
if len(staticFilesChanged) == 1 {
for path := range staticFilesChanged {
livereload.RefreshPath(path)
}
} else {
livereload.ForceRefresh()
}
}
}
if dynamicChanged {
fmt.Print("\nChange detected, rebuilding site\n")
const layout = "2006-01-02 15:04 -0700"
fmt.Println(time.Now().Format(layout))
utils.CheckErr(buildSite(true))
if !BuildWatch && !viper.GetBool("DisableLiveReload") {
// Will block forever trying to write to a channel that nobody is reading if livereload isn't initalized
livereload.ForceRefresh()
}
}
case err := <-watcher.Errors:
if err != nil {
fmt.Println("error:", err)
}
}
}
}()
if port > 0 {
if !viper.GetBool("DisableLiveReload") {
livereload.Initialize()
http.HandleFunc("/livereload.js", livereload.ServeJS)
http.HandleFunc("/livereload", livereload.Handler)
}
go serve(port)
}
wg.Wait()
return nil
}
// NewWatcher creates a new watcher to watch filesystem events.
func NewWatcher(port int) error {
if runtime.GOOS == "darwin" {
tweakLimit()
}
watcher, err := watcher.New(1 * time.Second)
var wg sync.WaitGroup
if err != nil {
return err
}
defer watcher.Close()
wg.Add(1)
for _, d := range getDirList() {
if d != "" {
_ = watcher.Add(d)
}
}
go func() {
for {
select {
case evs := <-watcher.Events:
jww.INFO.Println("Received System Events:", evs)
staticEvents := []fsnotify.Event{}
dynamicEvents := []fsnotify.Event{}
for _, ev := range evs {
ext := filepath.Ext(ev.Name)
istemp := strings.HasSuffix(ext, "~") ||
(ext == ".swp") ||
(ext == ".swx") ||
(ext == ".tmp") ||
(ext == ".DS_Store") ||
filepath.Base(ev.Name) == "4913" ||
strings.HasPrefix(ext, ".goutputstream") ||
strings.HasSuffix(ext, "jb_old___") ||
strings.HasSuffix(ext, "jb_bak___")
if istemp {
continue
}
// Sometimes during rm -rf operations a '"": REMOVE' is triggered. Just ignore these
if ev.Name == "" {
continue
}
// Write and rename operations are often followed by CHMOD.
// There may be valid use cases for rebuilding the site on CHMOD,
// but that will require more complex logic than this simple conditional.
// On OS X this seems to be related to Spotlight, see:
// https://github.com/go-fsnotify/fsnotify/issues/15
// A workaround is to put your site(s) on the Spotlight exception list,
// but that may be a little mysterious for most end users.
// So, for now, we skip reload on CHMOD.
if ev.Op&fsnotify.Chmod == fsnotify.Chmod {
continue
}
walkAdder := func(path string, f os.FileInfo, err error) error {
if f.IsDir() {
jww.FEEDBACK.Println("adding created directory to watchlist", path)
watcher.Add(path)
}
return nil
}
// recursively add new directories to watch list
// When mkdir -p is used, only the top directory triggers an event (at least on OSX)
if ev.Op&fsnotify.Create == fsnotify.Create {
if s, err := hugofs.SourceFs.Stat(ev.Name); err == nil && s.Mode().IsDir() {
afero.Walk(hugofs.SourceFs, ev.Name, walkAdder)
}
}
isstatic := strings.HasPrefix(ev.Name, helpers.GetStaticDirPath()) || (len(helpers.GetThemesDirPath()) > 0 && strings.HasPrefix(ev.Name, helpers.GetThemesDirPath()))
if isstatic {
staticEvents = append(staticEvents, ev)
} else {
dynamicEvents = append(dynamicEvents, ev)
}
}
if len(staticEvents) > 0 {
publishDir := helpers.AbsPathify(viper.GetString("PublishDir")) + helpers.FilePathSeparator
// If root, remove the second '/'
if publishDir == "//" {
publishDir = helpers.FilePathSeparator
}
jww.FEEDBACK.Println("\nStatic file changes detected")
const layout = "2006-01-02 15:04 -0700"
fmt.Println(time.Now().Format(layout))
if viper.GetBool("ForceSyncStatic") {
jww.FEEDBACK.Printf("Syncing all static files\n")
err := copyStatic()
if err != nil {
utils.StopOnErr(err, fmt.Sprintf("Error copying static files to %s", helpers.AbsPathify(viper.GetString("PublishDir"))))
}
} else {
staticSourceFs := getStaticSourceFs()
if staticSourceFs == nil {
jww.WARN.Println("No static directories found to sync")
return
}
syncer := fsync.NewSyncer()
syncer.NoTimes = viper.GetBool("notimes")
syncer.SrcFs = staticSourceFs
syncer.DestFs = hugofs.DestinationFS
// prevent spamming the log on changes
logger := helpers.NewDistinctFeedbackLogger()
for _, ev := range staticEvents {
// Due to our approach of layering both directories and the content's rendered output
// into one we can't accurately remove a file not in one of the source directories.
// If a file is in the local static dir and also in the theme static dir and we remove
// it from one of those locations we expect it to still exist in the destination
//
// If Hugo generates a file (from the content dir) over a static file
// the content generated file should take precedence.
//
// Because we are now watching and handling individual events it is possible that a static
// event that occupies the same path as a content generated file will take precedence
// until a regeneration of the content takes places.
//
// Hugo assumes that these cases are very rare and will permit this bad behavior
// The alternative is to track every single file and which pipeline rendered it
// and then to handle conflict resolution on every event.
fromPath := ev.Name
// If we are here we already know the event took place in a static dir
relPath, err := helpers.MakeStaticPathRelative(fromPath)
if err != nil {
fmt.Println(err)
continue
}
// Remove || rename is harder and will require an assumption.
// Hugo takes the following approach:
// If the static file exists in any of the static source directories after this event
// Hugo will re-sync it.
// If it does not exist in all of the static directories Hugo will remove it.
//
// This assumes that Hugo has not generated content on top of a static file and then removed
// the source of that static file. In this case Hugo will incorrectly remove that file
// from the published directory.
if ev.Op&fsnotify.Rename == fsnotify.Rename || ev.Op&fsnotify.Remove == fsnotify.Remove {
if _, err := staticSourceFs.Stat(relPath); os.IsNotExist(err) {
// If file doesn't exist in any static dir, remove it
toRemove := filepath.Join(publishDir, relPath)
logger.Println("File no longer exists in static dir, removing", toRemove)
hugofs.DestinationFS.RemoveAll(toRemove)
} else if err == nil {
// If file still exists, sync it
logger.Println("Syncing", relPath, "to", publishDir)
if err := syncer.Sync(filepath.Join(publishDir, relPath), relPath); err != nil {
jww.ERROR.Println(err)
}
} else {
jww.ERROR.Println(err)
}
continue
}
// For all other event operations Hugo will sync static.
logger.Println("Syncing", relPath, "to", publishDir)
if err := syncer.Sync(filepath.Join(publishDir, relPath), relPath); err != nil {
jww.ERROR.Println(err)
}
}
}
if !buildWatch && !viper.GetBool("DisableLiveReload") {
// Will block forever trying to write to a channel that nobody is reading if livereload isn't initialized
// force refresh when more than one file
if len(staticEvents) > 0 {
for _, ev := range staticEvents {
path, _ := helpers.MakeStaticPathRelative(ev.Name)
livereload.RefreshPath(path)
}
} else {
livereload.ForceRefresh()
}
}
}
if len(dynamicEvents) > 0 {
fmt.Print("\nChange detected, rebuilding site\n")
const layout = "2006-01-02 15:04 -0700"
fmt.Println(time.Now().Format(layout))
rebuildSite(dynamicEvents)
if !buildWatch && !viper.GetBool("DisableLiveReload") {
// Will block forever trying to write to a channel that nobody is reading if livereload isn't initialized
livereload.ForceRefresh()
}
}
case err := <-watcher.Errors:
if err != nil {
fmt.Println("error:", err)
}
}
}
}()
if port > 0 {
if !viper.GetBool("DisableLiveReload") {
livereload.Initialize()
http.HandleFunc("/livereload.js", livereload.ServeJS)
http.HandleFunc("/livereload", livereload.Handler)
}
go serve(port)
}
wg.Wait()
return nil
}
// NewWatcher creates a new watcher to watch filesystem events.
func NewWatcher(port int) error {
if runtime.GOOS == "darwin" {
tweakLimit()
}
watcher, err := watcher.New(1 * time.Second)
var wg sync.WaitGroup
if err != nil {
return err
}
defer watcher.Close()
wg.Add(1)
for _, d := range getDirList() {
if d != "" {
_ = watcher.Add(d)
}
}
go func() {
for {
select {
case evs := <-watcher.Events:
jww.INFO.Println("File System Event:", evs)
staticChanged := false
dynamicChanged := false
staticFilesChanged := make(map[string]bool)
for _, ev := range evs {
ext := filepath.Ext(ev.Name)
istemp := strings.HasSuffix(ext, "~") || (ext == ".swp") || (ext == ".swx") || (ext == ".tmp") || strings.HasPrefix(ext, ".goutputstream") || strings.HasSuffix(ext, "jb_old___") || strings.HasSuffix(ext, "jb_bak___")
if istemp {
continue
}
// renames are always followed with Create/Modify
if ev.Op&fsnotify.Rename == fsnotify.Rename {
continue
}
// Write and rename operations are often followed by CHMOD.
// There may be valid use cases for rebuilding the site on CHMOD,
// but that will require more complex logic than this simple conditional.
// On OS X this seems to be related to Spotlight, see:
// https://github.com/go-fsnotify/fsnotify/issues/15
// A workaround is to put your site(s) on the Spotlight exception list,
// but that may be a little mysterious for most end users.
// So, for now, we skip reload on CHMOD.
if ev.Op&fsnotify.Chmod == fsnotify.Chmod {
continue
}
isstatic := strings.HasPrefix(ev.Name, helpers.GetStaticDirPath()) || (len(helpers.GetThemesDirPath()) > 0 && strings.HasPrefix(ev.Name, helpers.GetThemesDirPath()))
staticChanged = staticChanged || isstatic
dynamicChanged = dynamicChanged || !isstatic
if isstatic {
staticFilesChanged[ev.Name] = true
}
// add new directory to watch list
if s, err := os.Stat(ev.Name); err == nil && s.Mode().IsDir() {
if ev.Op&fsnotify.Create == fsnotify.Create {
watcher.Add(ev.Name)
}
}
}
if staticChanged {
jww.FEEDBACK.Printf("Static file changed, syncing\n")
if viper.GetBool("ForceSyncStatic") {
jww.FEEDBACK.Printf("Syncing all static files\n")
err := copyStatic()
if err != nil {
fmt.Println(err)
utils.StopOnErr(err, fmt.Sprintf("Error copying static files to %s", helpers.AbsPathify(viper.GetString("PublishDir"))))
}
} else {
syncer := fsync.NewSyncer()
syncer.NoTimes = viper.GetBool("notimes")
syncer.SrcFs = hugofs.SourceFs
syncer.DestFs = hugofs.DestinationFS
publishDir := helpers.AbsPathify(viper.GetString("PublishDir")) + helpers.FilePathSeparator
if publishDir == "//" || publishDir == helpers.FilePathSeparator {
publishDir = ""
}
staticDir := helpers.GetStaticDirPath()
themeStaticDir := helpers.GetThemesDirPath()
jww.FEEDBACK.Printf("StaticDir '%s'\nThemeStaticDir '%s'\n", staticDir, themeStaticDir)
for path := range staticFilesChanged {
var publishPath string
if strings.HasPrefix(path, staticDir) {
publishPath = filepath.Join(publishDir, strings.TrimPrefix(path, staticDir))
} else if strings.HasPrefix(path, themeStaticDir) {
publishPath = filepath.Join(publishDir, strings.TrimPrefix(path, themeStaticDir))
}
jww.FEEDBACK.Printf("Syncing file '%s'", path)
if _, err := os.Stat(path); err == nil {
jww.INFO.Println("syncing from ", path, " to ", publishPath)
err := syncer.Sync(publishPath, path)
if err != nil {
jww.FEEDBACK.Printf("Error on syncing file '%s'\n", path)
}
}
}
}
if !BuildWatch && !viper.GetBool("DisableLiveReload") {
// Will block forever trying to write to a channel that nobody is reading if livereload isn't initalized
// force refresh when more than one file
if len(staticFilesChanged) == 1 {
for path := range staticFilesChanged {
livereload.RefreshPath(path)
}
} else {
livereload.ForceRefresh()
}
}
}
if dynamicChanged {
fmt.Print("\nChange detected, rebuilding site\n")
const layout = "2006-01-02 15:04 -0700"
fmt.Println(time.Now().Format(layout))
utils.CheckErr(buildSite(true))
if !BuildWatch && !viper.GetBool("DisableLiveReload") {
// Will block forever trying to write to a channel that nobody is reading if livereload isn't initalized
livereload.ForceRefresh()
}
}
case err := <-watcher.Errors:
if err != nil {
fmt.Println("error:", err)
}
}
}
}()
if port > 0 {
if !viper.GetBool("DisableLiveReload") {
livereload.Initialize()
http.HandleFunc("/livereload.js", livereload.ServeJS)
http.HandleFunc("/livereload", livereload.Handler)
}
go serve(port)
}
wg.Wait()
return nil
}