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Watch the entire directory

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Instead of watching a single file watch the entire directory and
catch the .Name from the event. On any event, just reload the damn
thing. This also fixes the problem of loosing events when the inode
changes.
This commit is contained in:
Miek Gieben
2016-04-15 20:00:17 +01:00
parent aa0ba0c3b4
commit dcd05032a4
1 changed files with 4 additions and 7 deletions
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11
middleware/file/zone.go
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@@ -4,6 +4,7 @@ import (
"fmt"
"log"
"os"
"path"
"sync"
"github.com/miekg/coredns/middleware"
@@ -107,7 +108,7 @@ func (z *Zone) Reload(shutdown chan bool) error {
if err != nil {
return err
}
err = watcher.Add(z.file)
err = watcher.Add(path.Dir(z.file))
if err != nil {
return err
}
@@ -117,11 +118,7 @@ func (z *Zone) Reload(shutdown chan bool) error {
for {
select {
case event := <-watcher.Events:
if event.Op&fsnotify.Write == fsnotify.Write || event.Op&fsnotify.Rename == fsnotify.Rename {
if err := watcher.Add(z.file); err != nil {
log.Printf("[ERROR] Failed to open `%s' for `%s': %v", z.file, z.origin, err)
}
if event.Name == z.file {
reader, err := os.Open(z.file)
if err != nil {
log.Printf("[ERROR] Failed to open `%s' for `%s': %v", z.file, z.origin, err)
@@ -139,7 +136,7 @@ func (z *Zone) Reload(shutdown chan bool) error {
z.SIG = zone.SIG
z.Tree = zone.Tree
z.reloadMu.Unlock()
log.Printf("[INFO] Successfully reload zone `%s'", z.origin)
log.Printf("[INFO] Successfully reloaded zone `%s'", z.origin)
}
case <-shutdown:
watcher.Close()