Should exit with a non-zero error code on fatal error #70
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Currently there's a bunch of different conditions in `func main()` which cause an immediate `return` (exit) because of an error that was encountered. On golang, returning the main function causes the program to exit status code 0 (success). Rather than indicate success, failures should exit with a non-zero code so that process managers can recognise it as a failure and do something appropriate (e.g. restart if the error condition is transient). Signed-off-by: Andrew Rowson <github@growse.com>
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Currently there's a bunch of different conditions in
func main()which cause an immediatereturn(exit) because of an error that was encountered. On golang, returning the main function causes the program to exit status code 0 (success). Rather than indicate success, failures should exit with a non-zero code so that process managers can recognise it as a failure and do something appropriate (e.g. restart if the error condition is transient).