plugeth/cmd/geth/logtestcmd_active.go
jwasinger 28e7371701
all: replace log15 with slog (#28187)
This PR replaces Geth's logger package (a fork of [log15](https://github.com/inconshreveable/log15)) with an implementation using slog, a logging library included as part of the Go standard library as of Go1.21.

Main changes are as follows:
* removes any log handlers that were unused in the Geth codebase.
* Json, logfmt, and terminal formatters are now slog handlers.
* Verbosity level constants are changed to match slog constant values.  Internal translation is done to make this opaque to the user and backwards compatible with existing `--verbosity` and `--vmodule` options.
* `--log.backtraceat` and `--log.debug` are removed.

The external-facing API is largely the same as the existing Geth logger.  Logger method signatures remain unchanged.

A small semantic difference is that a `Handler` can only be set once per `Logger` and not changed dynamically.  This just means that a new logger must be instantiated every time the handler of the root logger is changed.

----
For users of the `go-ethereum/log` module. If you were using this module for your own project, you will need to change the initialization. If you previously did 
```golang
log.Root().SetHandler(log.LvlFilterHandler(log.LvlInfo, log.StreamHandler(os.Stderr, log.TerminalFormat(true))))
```
You now instead need to do 
```golang
log.SetDefault(log.NewLogger(log.NewTerminalHandlerWithLevel(os.Stderr, log.LevelInfo, true)))
```
See more about reasoning here: https://github.com/ethereum/go-ethereum/issues/28558#issuecomment-1820606613
2023-11-29 08:33:50 +01:00

176 lines
6.9 KiB
Go

//go:build integrationtests
// Copyright 2023 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package main
import (
"errors"
"fmt"
"math"
"math/big"
"time"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/internal/debug"
"github.com/ethereum/go-ethereum/log"
"github.com/holiman/uint256"
"github.com/urfave/cli/v2"
)
var logTestCommand = &cli.Command{
Action: logTest,
Name: "logtest",
Usage: "Print some log messages",
ArgsUsage: " ",
Description: `
This command is only meant for testing.
`}
type customQuotedStringer struct {
}
func (c customQuotedStringer) String() string {
return "output with 'quotes'"
}
// logTest is an entry point which spits out some logs. This is used by testing
// to verify expected outputs
func logTest(ctx *cli.Context) error {
// clear field padding map
debug.ResetLogging()
{ // big.Int
ba, _ := new(big.Int).SetString("111222333444555678999", 10) // "111,222,333,444,555,678,999"
bb, _ := new(big.Int).SetString("-111222333444555678999", 10) // "-111,222,333,444,555,678,999"
bc, _ := new(big.Int).SetString("11122233344455567899900", 10) // "11,122,233,344,455,567,899,900"
bd, _ := new(big.Int).SetString("-11122233344455567899900", 10) // "-11,122,233,344,455,567,899,900"
log.Info("big.Int", "111,222,333,444,555,678,999", ba)
log.Info("-big.Int", "-111,222,333,444,555,678,999", bb)
log.Info("big.Int", "11,122,233,344,455,567,899,900", bc)
log.Info("-big.Int", "-11,122,233,344,455,567,899,900", bd)
}
{ //uint256
ua, _ := uint256.FromDecimal("111222333444555678999")
ub, _ := uint256.FromDecimal("11122233344455567899900")
log.Info("uint256", "111,222,333,444,555,678,999", ua)
log.Info("uint256", "11,122,233,344,455,567,899,900", ub)
}
{ // int64
log.Info("int64", "1,000,000", int64(1000000))
log.Info("int64", "-1,000,000", int64(-1000000))
log.Info("int64", "9,223,372,036,854,775,807", int64(math.MaxInt64))
log.Info("int64", "-9,223,372,036,854,775,808", int64(math.MinInt64))
}
{ // uint64
log.Info("uint64", "1,000,000", uint64(1000000))
log.Info("uint64", "18,446,744,073,709,551,615", uint64(math.MaxUint64))
}
{ // Special characters
log.Info("Special chars in value", "key", "special \r\n\t chars")
log.Info("Special chars in key", "special \n\t chars", "value")
log.Info("nospace", "nospace", "nospace")
log.Info("with space", "with nospace", "with nospace")
log.Info("Bash escapes in value", "key", "\u001b[1G\u001b[K\u001b[1A")
log.Info("Bash escapes in key", "\u001b[1G\u001b[K\u001b[1A", "value")
log.Info("Bash escapes in message \u001b[1G\u001b[K\u001b[1A end", "key", "value")
colored := fmt.Sprintf("\u001B[%dmColored\u001B[0m[", 35)
log.Info(colored, colored, colored)
err := errors.New("this is an 'error'")
log.Info("an error message with quotes", "error", err)
}
{ // Custom Stringer() - type
log.Info("Custom Stringer value", "2562047h47m16.854s", common.PrettyDuration(time.Duration(9223372036854775807)))
var c customQuotedStringer
log.Info("a custom stringer that emits quoted text", "output", c)
}
{ // Lazy eval
log.Info("Lazy evaluation of value", "key", log.Lazy{Fn: func() interface{} { return "lazy value" }})
}
{ // Multi-line message
log.Info("A message with wonky \U0001F4A9 characters")
log.Info("A multiline message \nINFO [10-18|14:11:31.106] with wonky characters \U0001F4A9")
log.Info("A multiline message \nLALA [ZZZZZZZZZZZZZZZZZZ] Actually part of message above")
}
{ // Miscellaneous json-quirks
// This will check if the json output uses strings or json-booleans to represent bool values
log.Info("boolean", "true", true, "false", false)
// Handling of duplicate keys.
// This is actually ill-handled by the current handler: the format.go
// uses a global 'fieldPadding' map and mixes up the two keys. If 'alpha'
// is shorter than beta, it sometimes causes erroneous padding -- and what's more
// it causes _different_ padding in multi-handler context, e.g. both file-
// and console output, making the two mismatch.
log.Info("repeated-key 1", "foo", "alpha", "foo", "beta")
log.Info("repeated-key 2", "xx", "short", "xx", "longer")
}
{ // loglevels
log.Debug("log at level debug")
log.Trace("log at level trace")
log.Info("log at level info")
log.Warn("log at level warn")
log.Error("log at level error")
}
{
// The current log formatter has a global map of paddings, storing the
// longest seen padding per key in a map. This results in a statefulness
// which has some odd side-effects. Demonstrated here:
log.Info("test", "bar", "short", "a", "aligned left")
log.Info("test", "bar", "a long message", "a", 1)
log.Info("test", "bar", "short", "a", "aligned right")
}
{
// This sequence of logs should be output with alignment, so each field becoems a column.
log.Info("The following logs should align so that the key-fields make 5 columns")
log.Info("Inserted known block", "number", 1_012, "hash", common.HexToHash("0x1234"), "txs", 200, "gas", 1_123_123, "other", "first")
log.Info("Inserted new block", "number", 1, "hash", common.HexToHash("0x1235"), "txs", 2, "gas", 1_123, "other", "second")
log.Info("Inserted known block", "number", 99, "hash", common.HexToHash("0x12322"), "txs", 10, "gas", 1, "other", "third")
log.Warn("Inserted known block", "number", 1_012, "hash", common.HexToHash("0x1234"), "txs", 200, "gas", 99, "other", "fourth")
}
{ // Various types of nil
type customStruct struct {
A string
B *uint64
}
log.Info("(*big.Int)(nil)", "<nil>", (*big.Int)(nil))
log.Info("(*uint256.Int)(nil)", "<nil>", (*uint256.Int)(nil))
log.Info("(fmt.Stringer)(nil)", "res", (fmt.Stringer)(nil))
log.Info("nil-concrete-stringer", "res", (*time.Time)(nil))
log.Info("error(nil) ", "res", error(nil))
log.Info("nil-concrete-error", "res", (*customError)(nil))
log.Info("nil-custom-struct", "res", (*customStruct)(nil))
log.Info("raw nil", "res", nil)
log.Info("(*uint64)(nil)", "res", (*uint64)(nil))
}
{ // Logging with 'reserved' keys
log.Info("Using keys 't', 'lvl', 'time', 'level' and 'msg'", "t", "t", "time", "time", "lvl", "lvl", "level", "level", "msg", "msg")
}
return nil
}
// customError is a type which implements error
type customError struct{}
func (c *customError) Error() string { return "" }