kato
36cb847f9e
- Recover panics to disk for diagnostics - Add 5-minute watchdog task with startup - Add -ensure flag to start detached agent - Add script to pull remote folder via API
59 lines
1.2 KiB
Go
59 lines
1.2 KiB
Go
package crashlog
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import (
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"fmt"
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"os"
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"path/filepath"
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"runtime/debug"
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"sync"
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"time"
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"tea.chunkbyte.com/kato/go-worm/lib/config"
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)
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var mu sync.Mutex
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// Recover logs a panic and re-raises after writing the crash file.
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func Recover() {
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if r := recover(); r != nil {
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_ = write("panic", fmt.Sprint(r), debug.Stack())
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panic(r)
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}
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}
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// RecordPanic writes a recovered panic without exiting (e.g. HTTP handlers).
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func RecordPanic(recovered any) {
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_ = write("panic", fmt.Sprint(recovered), debug.Stack())
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}
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// RecordError writes a fatal error before exit.
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func RecordError(err error) {
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if err == nil {
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return
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}
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_ = write("fatal", err.Error(), debug.Stack())
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}
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func write(kind, detail string, stack []byte) error {
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dir, err := config.LogsDir()
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if err != nil {
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return err
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}
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mu.Lock()
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defer mu.Unlock()
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if err := os.MkdirAll(dir, 0o700); err != nil {
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return err
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}
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name := fmt.Sprintf("crash-%s.log", time.Now().Format("2006-01-02-150405"))
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path := filepath.Join(dir, name)
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body := fmt.Sprintf(
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"time: %s\nversion: %s\nkind: %s\ndetail: %s\n\nstack:\n%s",
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time.Now().Format(time.RFC3339Nano),
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config.Version,
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kind,
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detail,
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stack,
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)
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return os.WriteFile(path, []byte(body), 0o600)
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}
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