Add logging stack with slog adapter #1574
+296
−13
There are no files selected for viewing
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change | ||||
|---|---|---|---|---|---|---|
| @@ -0,0 +1,29 @@ | ||||||
| package log | ||||||
|
|
||||||
| // Level represents the log level, from debug to fatal | ||||||
| type Level struct { | ||||||
| level string | ||||||
| } | ||||||
|
|
||||||
| var ( | ||||||
| // DebugLevel causes all logs to be logged | ||||||
| DebugLevel = Level{"debug"} | ||||||
| // InfoLevel causes all logs of level info or more severe to be logged | ||||||
| InfoLevel = Level{"info"} | ||||||
| // WarnLevel causes all logs of level warn or more severe to be logged | ||||||
| WarnLevel = Level{"warn"} | ||||||
| // ErrorLevel causes all logs of level error or more severe to be logged | ||||||
| ErrorLevel = Level{"error"} | ||||||
| // FatalLevel causes only logs of level fatal to be logged | ||||||
| FatalLevel = Level{"fatal"} | ||||||
| ) | ||||||
|
|
||||||
| // String returns the string representation for Level | ||||||
| // | ||||||
| // This is useful when trying to get the string values for Level and mapping level in other external libraries. For example: | ||||||
| // ``` | ||||||
| // trace.SetLogLevel(kvp.String("loglevel", log.DebugLevel.String()) | ||||||
|
There was a problem hiding this comment. The example code in the comment contains a syntax error. It shows
Suggested change
|
||||||
| // ``` | ||||||
| func (l Level) String() string { | ||||||
| return l.level | ||||||
| } | ||||||
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,21 @@ | ||
| package log | ||
|
|
||
| import ( | ||
| "context" | ||
| "log/slog" | ||
| ) | ||
|
|
||
| type Logger interface { | ||
| Log(ctx context.Context, level Level, msg string, fields ...slog.Attr) | ||
| Debug(msg string, fields ...slog.Attr) | ||
| Info(msg string, fields ...slog.Attr) | ||
| Warn(msg string, fields ...slog.Attr) | ||
| Error(msg string, fields ...slog.Attr) | ||
| Fatal(msg string, fields ...slog.Attr) | ||
| WithFields(fields ...slog.Attr) Logger | ||
| WithError(err error) Logger | ||
| Named(name string) Logger | ||
| WithLevel(level Level) Logger | ||
| Sync() error | ||
| Level() Level | ||
| } |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| @@ -0,0 +1,62 @@ | ||||||||||
| package log | ||||||||||
|
|
||||||||||
| import ( | ||||||||||
| "context" | ||||||||||
| "log/slog" | ||||||||||
| ) | ||||||||||
|
|
||||||||||
| type NoopLogger struct{} | ||||||||||
|
|
||||||||||
| var _ Logger = (*NoopLogger)(nil) | ||||||||||
|
|
||||||||||
| func NewNoopLogger() *NoopLogger { | ||||||||||
| return &NoopLogger{} | ||||||||||
| } | ||||||||||
|
|
||||||||||
| func (l *NoopLogger) Level() Level { | ||||||||||
| return DebugLevel | ||||||||||
| } | ||||||||||
|
|
||||||||||
| func (l *NoopLogger) Log(_ context.Context, _ Level, _ string, _ ...slog.Attr) { | ||||||||||
| // No-op | ||||||||||
| } | ||||||||||
|
|
||||||||||
| func (l *NoopLogger) Debug(_ string, _ ...slog.Attr) { | ||||||||||
| // No-op | ||||||||||
| } | ||||||||||
|
|
||||||||||
| func (l *NoopLogger) Info(_ string, _ ...slog.Attr) { | ||||||||||
| // No-op | ||||||||||
| } | ||||||||||
|
|
||||||||||
| func (l *NoopLogger) Warn(_ string, _ ...slog.Attr) { | ||||||||||
| // No-op | ||||||||||
| } | ||||||||||
|
|
||||||||||
| func (l *NoopLogger) Error(_ string, _ ...slog.Attr) { | ||||||||||
| // No-op | ||||||||||
| } | ||||||||||
|
|
||||||||||
| func (l *NoopLogger) Fatal(_ string, _ ...slog.Attr) { | ||||||||||
| // No-op | ||||||||||
|
Comment on lines
+40
to
+41
There was a problem hiding this comment. The NoopLogger's Fatal method should maintain consistent behavior with the SlogLogger implementation. Since SlogLogger panics after logging a fatal message, NoopLogger should also panic to ensure consistent Fatal semantics across implementations. Otherwise, code that relies on Fatal terminating execution could continue running unexpectedly when using NoopLogger.
Suggested change
|
||||||||||
| } | ||||||||||
|
|
||||||||||
| func (l *NoopLogger) WithFields(_ ...slog.Attr) Logger { | ||||||||||
| return l | ||||||||||
| } | ||||||||||
|
|
||||||||||
| func (l *NoopLogger) WithError(_ error) Logger { | ||||||||||
| return l | ||||||||||
| } | ||||||||||
|
|
||||||||||
| func (l *NoopLogger) Named(_ string) Logger { | ||||||||||
| return l | ||||||||||
| } | ||||||||||
|
|
||||||||||
| func (l *NoopLogger) WithLevel(_ Level) Logger { | ||||||||||
| return l | ||||||||||
| } | ||||||||||
|
|
||||||||||
| func (l *NoopLogger) Sync() error { | ||||||||||
| return nil | ||||||||||
| } | ||||||||||
|
Comment on lines
+12
to
+62
There was a problem hiding this comment. The NoopLogger implementation lacks test coverage. While it's a simple no-op implementation, tests should verify that it correctly implements the Logger interface and that all methods are safe to call without side effects. Similar packages in this repository have corresponding test files. |
||||||||||
Oops, something went wrong.
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
The comment for FatalLevel states "causes only logs of level fatal to be logged" which is inconsistent with other level comments. This suggests filtering that would suppress all other logs, but FatalLevel should be described as "causes all logs of level fatal to be logged" or "causes only fatal severity logs to be logged" to maintain consistency with the pattern of the other levels.