0c34b6e781
- Remove CAS, as it no longer works for us - Remove other checks - Implement 15 minute greet timeout check - Fix chat logos - Ditch thirdparty logger, use stdlib log facility wrapper for logging
72 lines
2.1 KiB
Go
72 lines
2.1 KiB
Go
package mylog
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import (
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"errors"
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"io"
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"os"
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"sync"
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)
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const (
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// levelTrace is the most verbose level, below DEBUG.
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levelTrace Level = iota
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levelDebug
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levelInfo
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levelWarn
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levelError
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levelFatal
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)
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const (
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// stampLayout is the timestamp layout. Sub-second precision is kept on
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// purpose: the greeting sweeper reasons over 15-minute windows measured in
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// microseconds, and the previous zap configuration truncated to whole
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// seconds, which made window-edge debugging needlessly hard.
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stampLayout = "2006-01-02 15:04:05.000"
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// calldepth is reported to the stdlib logger. mylog never prints caller
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// information, so the value only has to be consistent.
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calldepth = 2
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// filePerm is the mode for a newly created log file.
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filePerm = 0o644
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)
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var (
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// errClosed is returned when ReOpen is called on a closed logger.
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errClosed = errors.New("cannot reopen a closed logger")
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// errUnknownLevel is returned for a log level name mylog does not know.
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errUnknownLevel = errors.New("unknown log level")
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// levelNames renders each level as the uppercase token written to the log.
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levelNames = map[Level]string{
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levelTrace: "TRACE",
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levelDebug: "DEBUG",
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levelInfo: "INFO",
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levelWarn: "WARN",
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levelError: "ERROR",
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levelFatal: "FATAL",
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}
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// exit is os.Exit, indirected so tests can observe the fatal path.
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exit = os.Exit
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// lock guards the package-global logger state. It is held for reading across
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// the actual write, so that a concurrent Init cannot close the destination
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// between the level check and the write.
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lock sync.RWMutex
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// current is the active logger. It is deliberately never nil: it is created
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// working at package initialisation, writing to stderr at INFO. A nil logger
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// would be the defect M2 in this codebase, and a valid default removes the
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// state entirely rather than guarding against it.
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current = newState(levelInfo, io.Writer(os.Stderr), "", nil, false)
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// standard is the singleton Logger handed to modules that expect a
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// *log.Logger. It is stateless; the package-global current does the work.
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standard Logger = &adapter{}
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)
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/* vim: set ft=go noet ai ts=4 sw=4 sts=4: */
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