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9c96ffecc4
Multi-segment events now log as "config: database › connect" instead of "system: config › database › connect"; single-segment events keep the generic "system: " prefix. The hub message is unchanged so the frontend log viewer still shows the full joined event.
41 lines
1.4 KiB
Go
41 lines
1.4 KiB
Go
package event
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import "runtime/debug"
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// LogPanic reports a recovered panic value together with the current stack
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// trace so that crashes which would otherwise terminate the process without any
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// output can be diagnosed. It does not stop the process; the caller decides
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// whether to exit.
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//
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// It deliberately reports through SystemError (the system log) rather than the
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// default Log: the default logger is persisted to the database via the event
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// hub (the errors and audit_logs tables), so reporting a panic through it could
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// trigger a follow-up error or panic when the database is itself the cause of
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// the crash or is unavailable. The system log writes to the console only.
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func LogPanic(r any) {
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if r == nil {
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return
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}
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// The leading "panic" segment becomes the log prefix, so this reads as
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// "panic: <value> › <stack>".
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SystemError([]string{"panic", "%v", "%s"}, r, debug.Stack())
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}
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// Recover recovers from a panic in the calling goroutine, if any, and logs it
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// with a stack trace via LogPanic. Use it as a deferred call so a crash in a
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// background task is reported instead of silently terminating the process:
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// defer event.Recover().
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func Recover() {
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if r := recover(); r != nil {
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LogPanic(r)
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}
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}
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// Safe runs fn and recovers from any panic it raises, logging it via LogPanic.
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// It lets long-running loops continue after a single iteration panics rather
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// than taking down the whole process.
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func Safe(fn func()) {
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defer Recover()
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fn()
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}
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