mirror of
https://github.com/wavetermdev/waveterm
synced 2026-05-24 09:18:27 +00:00
4956c92c55
`WriteWaveHomeConfigFile()` previously used direct `os.WriteFile`, which
can expose truncation/partial-write states to the JSON file watcher.
This change switches config persistence to temp-file + rename semantics
and serializes writes through a single process-wide lock for config file
writes.
- **Atomic file write helper**
- Added `AtomicWriteFile()` in `pkg/util/fileutil/fileutil.go`.
- Writes to `<filename>.tmp` in the same directory, then renames to the
target path.
- Performs temp-file cleanup on error paths.
- Introduced a shared suffix constant (`TempFileSuffix`) used by
implementation/tests.
- **Config write path update**
- Updated `WriteWaveHomeConfigFile()` in `pkg/wconfig/settingsconfig.go`
to:
- Use a package-level mutex (`configWriteLock`) so only one config write
runs at a time (across all config files).
- Call `fileutil.AtomicWriteFile(...)` instead of direct
`os.WriteFile(...)`.
- **Focused coverage for atomic behavior**
- Added `pkg/util/fileutil/fileutil_test.go` with tests for:
- Successful atomic write (target file contains expected payload and no
leftover `.tmp` file).
- Rename-failure path cleanup (temp file is removed).
```go
func WriteWaveHomeConfigFile(fileName string, m waveobj.MetaMapType) error {
configWriteLock.Lock()
defer configWriteLock.Unlock()
fullFileName := filepath.Join(wavebase.GetWaveConfigDir(), fileName)
barr, err := jsonMarshalConfigInOrder(m)
if err != nil {
return err
}
return fileutil.AtomicWriteFile(fullFileName, barr, 0644)
}
```
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| .. | ||
| aiusechat | ||
| authkey | ||
| baseds | ||
| blockcontroller | ||
| blocklogger | ||
| buildercontroller | ||
| eventbus | ||
| faviconcache | ||
| filebackup | ||
| filestore | ||
| genconn | ||
| gogen | ||
| ijson | ||
| jobcontroller | ||
| jobmanager | ||
| panichandler | ||
| remote | ||
| schema | ||
| secretstore | ||
| service | ||
| shellexec | ||
| streamclient | ||
| suggestion | ||
| telemetry | ||
| trimquotes | ||
| tsgen | ||
| tsunamiutil | ||
| userinput | ||
| util | ||
| utilds | ||
| vdom | ||
| waveai | ||
| waveapp | ||
| waveappstore | ||
| waveapputil | ||
| wavebase | ||
| wavejwt | ||
| waveobj | ||
| wcloud | ||
| wconfig | ||
| wcore | ||
| web | ||
| wps | ||
| wshrpc | ||
| wshutil | ||
| wsl | ||
| wslconn | ||
| wstore | ||