Export standard log levels from Logging stdlib.

Author: fredrikekre

NEWS.md

@@ -71,6 +71,10 @@ Standard library changes
 
 #### DelimitedFiles
 
+#### Logging
+* The standard log levels `BelowMinLevel`, `Debug`, `Info`, `Warn`, `Error`,
+  and `AboveMaxLevel` are now exported from the Logging stdlib ([#40980]).
+
 
 Deprecated or removed
 ---------------------

stdlib/Logging/src/Logging.jl

@@ -72,7 +72,13 @@ export
     global_logger,
     disable_logging,
     SimpleLogger,
-    ConsoleLogger
+    ConsoleLogger,
+    BelowMinLevel,
+    Debug,
+    Info,
+    Warn,
+    Error,
+    AboveMaxLevel
 
 include("ConsoleLogger.jl")
 

stdlib/Logging/test/runtests.jl

@@ -259,4 +259,16 @@ end
 
 end
 
+module ExportedLoggingNames
+    using Logging
+    f() = (BelowMinLevel, Debug, Info, Warn, Error, AboveMaxLevel, LogLevel)
+end
+
+@testset "Exported names" begin
+    import .ExportedLoggingNames
+    @test ExportedLoggingNames.f() ==
+          (Logging.BelowMinLevel, Logging.Debug, Logging.Info, Logging.Warn,
+           Logging.Error, Logging.AboveMaxLevel, Logging.LogLevel)
+end
+
 end

stdlib/Test/src/logging.jl

@@ -1,8 +1,6 @@
 # This file is a part of Julia. License is MIT: https://julialang.org/license
 
-using Logging
-import Logging: Info,
-    shouldlog, handle_message, min_enabled_level, catch_exceptions
+using Logging: Logging, AbstractLogger, LogLevel, Info, with_logger
 import Base: occursin
 
 #-------------------------------------------------------------------------------
@@ -30,22 +28,23 @@ mutable struct TestLogger <: AbstractLogger
     shouldlog_args
 end
 
-TestLogger(; min_level=Info, catch_exceptions=false) = TestLogger(LogRecord[], min_level, catch_exceptions, nothing)
-min_enabled_level(logger::TestLogger) = logger.min_level
+TestLogger(; min_level=Info, catch_exceptions=false) =
+    TestLogger(LogRecord[], min_level, catch_exceptions, nothing)
+Logging.min_enabled_level(logger::TestLogger) = logger.min_level
 
-function shouldlog(logger::TestLogger, level, _module, group, id)
+function Logging.shouldlog(logger::TestLogger, level, _module, group, id)
     logger.shouldlog_args = (level, _module, group, id)
     true
 end
 
-function handle_message(logger::TestLogger, level, msg, _module,
-                        group, id, file, line; kwargs...)
+function Logging.handle_message(logger::TestLogger, level, msg, _module,
+                                group, id, file, line; kwargs...)
     @nospecialize
     push!(logger.logs, LogRecord(level, msg, _module, group, id, file, line, kwargs))
 end
 
 # Catch exceptions for the test logger only if specified
-catch_exceptions(logger::TestLogger) = logger.catch_exceptions
+Logging.catch_exceptions(logger::TestLogger) = logger.catch_exceptions
 
 function collect_test_logs(f; kwargs...)
     logger = TestLogger(; kwargs...)