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fix: fetcher does not start the pull loop when local file parsing errors occur and the first remote update fails

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This commit is contained in:
wwqgtxx 2025-04-30 13:21:42 +08:00
parent a013ac32a3
commit 61d6a9abd6
1 changed files with 14 additions and 12 deletions
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26
component/resource/fetcher.go
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@ -3,6 +3,7 @@ package resource
import (
"context"
"os"
"sync"
"time"
"github.com/metacubex/mihomo/common/utils"
@ -27,6 +28,7 @@ type Fetcher[V any] struct {
interval time.Duration
onUpdate func(V)
watcher *fswatch.Watcher
loadBufMutex sync.Mutex
}
func (f *Fetcher[V]) Name() string {
@ -46,17 +48,11 @@ func (f *Fetcher[V]) UpdatedAt() time.Time {
}
func (f *Fetcher[V]) Initial() (V, error) {
var (
buf []byte
contents V
err error
)
if stat, fErr := os.Stat(f.vehicle.Path()); fErr == nil {
// local file exists, use it first
buf, err = os.ReadFile(f.vehicle.Path())
buf, err := os.ReadFile(f.vehicle.Path())
modTime := stat.ModTime()
contents, _, err = f.loadBuf(buf, utils.MakeHash(buf), false)
contents, _, err := f.loadBuf(buf, utils.MakeHash(buf), false)
f.updatedAt = modTime // reset updatedAt to file's modTime
if err == nil {
@ -69,15 +65,18 @@ func (f *Fetcher[V]) Initial() (V, error) {
}
// parse local file error, fallback to remote
contents, _, err = f.Update()
contents, _, updateErr := f.Update()
// start the pull loop even if f.Update() failed
err := f.startPullLoop(false)
if err != nil {
return lo.Empty[V](), err
}
err = f.startPullLoop(false)
if err != nil {
return lo.Empty[V](), err
if updateErr != nil {
return lo.Empty[V](), updateErr
}
return contents, nil
}
@ -94,6 +93,9 @@ func (f *Fetcher[V]) SideUpdate(buf []byte) (V, bool, error) {
}
func (f *Fetcher[V]) loadBuf(buf []byte, hash utils.HashType, updateFile bool) (V, bool, error) {
f.loadBufMutex.Lock()
defer f.loadBufMutex.Unlock()
now := time.Now()
if f.hash.Equal(hash) {
if updateFile {