a2b2e53045
For "ordinary" errors like "file not found" for some part of the config, we would prefer to log an error and exit without logging about a panic and printing a stack trace. To achieve that, we want to call `defer AuditPanic()` once, at the top of `cmd/boulder`'s main. That's so early that we haven't yet parsed the config, which means we haven't yet initialized a logger. We compromise: `AuditPanic` now calls `log.Get()`, which will retrieve the configured logger if one has been set up, or will create a default one (which logs to stderr/stdout). AuditPanic and Fail/FailOnError now cooperate: Fail/FailOnError panic with a special type, and AuditPanic checks for that type and prints a simple message before exiting when it's present. This PR also coincidentally fixes a bug: panicking didn't previously cause the program to exit with nonzero status, because it recovered the panic but then did not explicitly exit nonzero. Fixes #6933 |
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