WIP: Save agent roles integration work before CHORUS rebrand

- Agent roles and coordination features
- Chat API integration testing
- New configuration and workspace management

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

vendor/github.com/ipfs/go-log/v2/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2014 Juan Batiz-Benet
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

vendor/github.com/ipfs/go-log/v2/README.md

@@ -0,0 +1,137 @@
+# go-log
+
+[![](https://img.shields.io/badge/made%20by-Protocol%20Labs-blue.svg?style=flat-square)](https://protocol.ai)
+[![](https://img.shields.io/badge/project-IPFS-blue.svg?style=flat-square)](https://ipfs.io/)
+[![GoDoc](https://pkg.go.dev/badge/github.com/ipfs/go-log/v2.svg)](https://pkg.go.dev/github.com/ipfs/go-log/v2)
+
+> The logging library used by go-ipfs
+
+go-log wraps [zap](https://github.com/uber-go/zap) to provide a logging facade. go-log manages logging
+instances and allows for their levels to be controlled individually.
+
+## Install
+
+```sh
+go get github.com/ipfs/go-log
+```
+
+## Usage
+
+Once the package is imported under the name `logging`, an instance of `EventLogger` can be created like so:
+
+```go
+var log = logging.Logger("subsystem name")
+```
+
+It can then be used to emit log messages in plain printf-style messages at seven standard levels:
+
+Levels may be set for all loggers:
+
+```go
+lvl, err := logging.LevelFromString("error")
+if err != nil {
+	panic(err)
+}
+logging.SetAllLoggers(lvl)
+```
+
+or individually:
+
+```go
+err := logging.SetLogLevel("net:pubsub", "info")
+if err != nil {
+	panic(err)
+}
+```
+
+or by regular expression:
+
+```go
+err := logging.SetLogLevelRegex("net:.*", "info")
+if err != nil {
+	panic(err)
+}
+```
+
+### Environment Variables
+
+This package can be configured through various environment variables.
+
+#### `GOLOG_LOG_LEVEL`
+
+Specifies the log-level, both globally and on a per-subsystem basis.
+
+For example, the following will set the global minimum log level to `error`, but reduce the minimum
+log level for `subsystem1` to `info` and reduce the minimum log level for `subsystem2` to debug.
+
+```bash
+export GOLOG_LOG_LEVEL="error,subsystem1=info,subsystem2=debug"
+```
+
+`IPFS_LOGGING` is a deprecated alias for this environment variable.
+
+#### `GOLOG_FILE`
+
+Specifies that logs should be written to the specified file. If this option is _not_ specified, logs are written to standard error.
+
+```bash
+export GOLOG_FILE="/path/to/my/file.log"
+```
+
+#### `GOLOG_OUTPUT`
+
+Specifies where logging output should be written. Can take one or more of the following values, combined with `+`:
+
+- `stdout` -- write logs to standard out.
+- `stderr` -- write logs to standard error.
+- `file` -- write logs to the file specified by `GOLOG_FILE`
+
+For example, if you want to log to both a file and standard error:
+
+```bash
+export GOLOG_FILE="/path/to/my/file.log"
+export GOLOG_OUTPUT="stderr+file"
+```
+
+Setting _only_ `GOLOG_FILE` will prevent logs from being written to standard error.
+
+#### `GOLOG_LOG_FMT`
+
+Specifies the log message format. It supports the following values:
+
+- `color` -- human readable, colorized (ANSI) output
+- `nocolor` -- human readable, plain-text output.
+- `json` -- structured JSON.
+
+For example, to log structured JSON (for easier parsing):
+
+```bash
+export GOLOG_LOG_FMT="json"
+```
+
+The logging format defaults to `color` when the output is a terminal, and `nocolor` otherwise.
+
+`IPFS_LOGGING_FMT` is a deprecated alias for this environment variable.
+
+#### `GOLOG_LOG_LABELS`
+
+Specifies a set of labels that should be added to all log messages as comma-separated key-value
+pairs. For example, the following add `{"app": "example_app", "dc": "sjc-1"}` to every log entry.
+
+```bash
+export GOLOG_LOG_LABELS="app=example_app,dc=sjc-1"
+```
+
+## Contribute
+
+Feel free to join in. All welcome. Open an [issue](https://github.com/ipfs/go-log/issues)!
+
+This repository falls under the IPFS [Code of Conduct](https://github.com/ipfs/community/blob/master/code-of-conduct.md).
+
+### Want to hack on IPFS?
+
+[![](https://cdn.rawgit.com/jbenet/contribute-ipfs-gif/master/img/contribute.gif)](https://github.com/ipfs/community/blob/master/CONTRIBUTING.md)
+
+## License
+
+MIT

vendor/github.com/ipfs/go-log/v2/core.go

@@ -0,0 +1,121 @@
+package log
+
+import (
+	"reflect"
+	"sync"
+
+	"go.uber.org/multierr"
+	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
+)
+
+var _ zapcore.Core = (*lockedMultiCore)(nil)
+
+type lockedMultiCore struct {
+	mu    sync.RWMutex // guards mutations to cores slice
+	cores []zapcore.Core
+}
+
+func (l *lockedMultiCore) With(fields []zapcore.Field) zapcore.Core {
+	l.mu.RLock()
+	defer l.mu.RUnlock()
+	sub := &lockedMultiCore{
+		cores: make([]zapcore.Core, len(l.cores)),
+	}
+	for i := range l.cores {
+		sub.cores[i] = l.cores[i].With(fields)
+	}
+	return sub
+}
+
+func (l *lockedMultiCore) Enabled(lvl zapcore.Level) bool {
+	l.mu.RLock()
+	defer l.mu.RUnlock()
+	for i := range l.cores {
+		if l.cores[i].Enabled(lvl) {
+			return true
+		}
+	}
+	return false
+}
+
+func (l *lockedMultiCore) Check(ent zapcore.Entry, ce *zapcore.CheckedEntry) *zapcore.CheckedEntry {
+	l.mu.RLock()
+	defer l.mu.RUnlock()
+	for i := range l.cores {
+		ce = l.cores[i].Check(ent, ce)
+	}
+	return ce
+}
+
+func (l *lockedMultiCore) Write(ent zapcore.Entry, fields []zapcore.Field) error {
+	l.mu.RLock()
+	defer l.mu.RUnlock()
+	var err error
+	for i := range l.cores {
+		err = multierr.Append(err, l.cores[i].Write(ent, fields))
+	}
+	return err
+}
+
+func (l *lockedMultiCore) Sync() error {
+	l.mu.RLock()
+	defer l.mu.RUnlock()
+	var err error
+	for i := range l.cores {
+		err = multierr.Append(err, l.cores[i].Sync())
+	}
+	return err
+}
+
+func (l *lockedMultiCore) AddCore(core zapcore.Core) {
+	l.mu.Lock()
+	defer l.mu.Unlock()
+
+	l.cores = append(l.cores, core)
+}
+
+func (l *lockedMultiCore) DeleteCore(core zapcore.Core) {
+	l.mu.Lock()
+	defer l.mu.Unlock()
+
+	w := 0
+	for i := 0; i < len(l.cores); i++ {
+		if reflect.DeepEqual(l.cores[i], core) {
+			continue
+		}
+		l.cores[w] = l.cores[i]
+		w++
+	}
+	l.cores = l.cores[:w]
+}
+
+func (l *lockedMultiCore) ReplaceCore(original, replacement zapcore.Core) {
+	l.mu.Lock()
+	defer l.mu.Unlock()
+
+	for i := 0; i < len(l.cores); i++ {
+		if reflect.DeepEqual(l.cores[i], original) {
+			l.cores[i] = replacement
+		}
+	}
+}
+
+func newCore(format LogFormat, ws zapcore.WriteSyncer, level LogLevel) zapcore.Core {
+	encCfg := zap.NewProductionEncoderConfig()
+	encCfg.EncodeTime = zapcore.ISO8601TimeEncoder
+
+	var encoder zapcore.Encoder
+	switch format {
+	case PlaintextOutput:
+		encCfg.EncodeLevel = zapcore.CapitalLevelEncoder
+		encoder = zapcore.NewConsoleEncoder(encCfg)
+	case JSONOutput:
+		encoder = zapcore.NewJSONEncoder(encCfg)
+	default:
+		encCfg.EncodeLevel = zapcore.CapitalColorLevelEncoder
+		encoder = zapcore.NewConsoleEncoder(encCfg)
+	}
+
+	return zapcore.NewCore(encoder, ws, zap.NewAtomicLevelAt(zapcore.Level(level)))
+}

vendor/github.com/ipfs/go-log/v2/levels.go

@@ -0,0 +1,30 @@
+package log
+
+import "go.uber.org/zap/zapcore"
+
+// LogLevel represents a log severity level. Use the package variables as an
+// enum.
+type LogLevel zapcore.Level
+
+var (
+	LevelDebug  = LogLevel(zapcore.DebugLevel)
+	LevelInfo   = LogLevel(zapcore.InfoLevel)
+	LevelWarn   = LogLevel(zapcore.WarnLevel)
+	LevelError  = LogLevel(zapcore.ErrorLevel)
+	LevelDPanic = LogLevel(zapcore.DPanicLevel)
+	LevelPanic  = LogLevel(zapcore.PanicLevel)
+	LevelFatal  = LogLevel(zapcore.FatalLevel)
+)
+
+// LevelFromString parses a string-based level and returns the corresponding
+// LogLevel.
+//
+// Supported strings are: DEBUG, INFO, WARN, ERROR, DPANIC, PANIC, FATAL, and
+// their lower-case forms.
+//
+// The returned LogLevel must be discarded if error is not nil.
+func LevelFromString(level string) (LogLevel, error) {
+	lvl := zapcore.InfoLevel // zero value
+	err := lvl.Set(level)
+	return LogLevel(lvl), err
+}

vendor/github.com/ipfs/go-log/v2/log.go

@@ -0,0 +1,94 @@
+// Package log is the logging library used by IPFS & libp2p
+// (https://github.com/ipfs/go-ipfs).
+package log
+
+import (
+	"time"
+
+	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
+)
+
+// StandardLogger provides API compatibility with standard printf loggers
+// eg. go-logging
+type StandardLogger interface {
+	Debug(args ...interface{})
+	Debugf(format string, args ...interface{})
+	Error(args ...interface{})
+	Errorf(format string, args ...interface{})
+	Fatal(args ...interface{})
+	Fatalf(format string, args ...interface{})
+	Info(args ...interface{})
+	Infof(format string, args ...interface{})
+	Panic(args ...interface{})
+	Panicf(format string, args ...interface{})
+	Warn(args ...interface{})
+	Warnf(format string, args ...interface{})
+}
+
+// EventLogger extends the StandardLogger interface to allow for log items
+// containing structured metadata
+type EventLogger interface {
+	StandardLogger
+}
+
+// Logger retrieves an event logger by name
+func Logger(system string) *ZapEventLogger {
+	if len(system) == 0 {
+		setuplog := getLogger("setup-logger")
+		setuplog.Error("Missing name parameter")
+		system = "undefined"
+	}
+
+	logger := getLogger(system)
+	skipLogger := logger.Desugar().WithOptions(zap.AddCallerSkip(1)).Sugar()
+
+	return &ZapEventLogger{
+		system:        system,
+		SugaredLogger: *logger,
+		skipLogger:    *skipLogger,
+	}
+}
+
+// ZapEventLogger implements the EventLogger and wraps a go-logging Logger
+type ZapEventLogger struct {
+	zap.SugaredLogger
+	// used to fix the caller location when calling Warning and Warningf.
+	skipLogger zap.SugaredLogger
+	system     string
+}
+
+// Warning is for compatibility
+// Deprecated: use Warn(args ...interface{}) instead
+func (logger *ZapEventLogger) Warning(args ...interface{}) {
+	logger.skipLogger.Warn(args...)
+}
+
+// Warningf is for compatibility
+// Deprecated: use Warnf(format string, args ...interface{}) instead
+func (logger *ZapEventLogger) Warningf(format string, args ...interface{}) {
+	logger.skipLogger.Warnf(format, args...)
+}
+
+// FormatRFC3339 returns the given time in UTC with RFC3999Nano format.
+func FormatRFC3339(t time.Time) string {
+	return t.UTC().Format(time.RFC3339Nano)
+}
+
+func WithStacktrace(l *ZapEventLogger, level LogLevel) *ZapEventLogger {
+	copyLogger := *l
+	copyLogger.SugaredLogger = *copyLogger.SugaredLogger.Desugar().
+		WithOptions(zap.AddStacktrace(zapcore.Level(level))).Sugar()
+	copyLogger.skipLogger = *copyLogger.SugaredLogger.Desugar().WithOptions(zap.AddCallerSkip(1)).Sugar()
+	return &copyLogger
+}
+
+// WithSkip returns a new logger that skips the specified number of stack frames when reporting the
+// line/file.
+func WithSkip(l *ZapEventLogger, skip int) *ZapEventLogger {
+	copyLogger := *l
+	copyLogger.SugaredLogger = *copyLogger.SugaredLogger.Desugar().
+		WithOptions(zap.AddCallerSkip(skip)).Sugar()
+	copyLogger.skipLogger = *copyLogger.SugaredLogger.Desugar().WithOptions(zap.AddCallerSkip(1)).Sugar()
+	return &copyLogger
+}

vendor/github.com/ipfs/go-log/v2/path_other.go

@@ -0,0 +1,12 @@
+//go:build !windows
+// +build !windows
+
+package log
+
+import (
+	"path/filepath"
+)
+
+func normalizePath(p string) (string, error) {
+	return filepath.Abs(p)
+}

vendor/github.com/ipfs/go-log/v2/path_windows.go

@@ -0,0 +1,36 @@
+//go:build windows
+// +build windows
+
+package log
+
+import (
+	"fmt"
+	"path/filepath"
+	"strings"
+)
+
+func normalizePath(p string) (string, error) {
+	if p == "" {
+		return "", fmt.Errorf("path empty")
+	}
+	p, err := filepath.Abs(p)
+	if err != nil {
+		return "", err
+	}
+	// Is this _really_ an absolute path?
+	if !strings.HasPrefix(p, "\\\\") {
+		// It's a drive: path!
+		// Return a UNC path.
+		p = "\\\\%3F\\" + p
+	}
+
+	// This will return file:////?/c:/foobar
+	//
+	// Why? Because:
+	//  1. Go will choke on file://c:/ because the "domain" includes a :.
+	//  2. Windows will choke on file:///c:/ because the path will be
+	//     /c:/... which is _relative_ to the current drive.
+	//
+	// This path (a) has no "domain" and (b) starts with a slash. Yay!
+	return "file://" + filepath.ToSlash(p), nil
+}

vendor/github.com/ipfs/go-log/v2/pipe.go

@@ -0,0 +1,90 @@
+package log
+
+import (
+	"io"
+
+	"go.uber.org/multierr"
+	"go.uber.org/zap/zapcore"
+)
+
+// A PipeReader is a reader that reads from the logger. It is synchronous
+// so blocking on read will affect logging performance.
+type PipeReader struct {
+	r      *io.PipeReader
+	closer io.Closer
+	core   zapcore.Core
+}
+
+// Read implements the standard Read interface
+func (p *PipeReader) Read(data []byte) (int, error) {
+	return p.r.Read(data)
+}
+
+// Close unregisters the reader from the logger.
+func (p *PipeReader) Close() error {
+	if p.core != nil {
+		loggerCore.DeleteCore(p.core)
+	}
+	return multierr.Append(p.core.Sync(), p.closer.Close())
+}
+
+// NewPipeReader creates a new in-memory reader that reads from all loggers
+// The caller must call Close on the returned reader when done.
+//
+// By default, it:
+//
+// 1. Logs JSON. This can be changed by passing the PipeFormat option.
+// 2. Logs everything that would otherwise be logged to the "primary" log
+//    output. That is, everything enabled by SetLogLevel. The minimum log level
+//    can be increased by passing the PipeLevel option.
+func NewPipeReader(opts ...PipeReaderOption) *PipeReader {
+	opt := pipeReaderOptions{
+		format: JSONOutput,
+		level:  LevelDebug,
+	}
+
+	for _, o := range opts {
+		o.setOption(&opt)
+	}
+
+	r, w := io.Pipe()
+
+	p := &PipeReader{
+		r:      r,
+		closer: w,
+		core:   newCore(opt.format, zapcore.AddSync(w), opt.level),
+	}
+
+	loggerCore.AddCore(p.core)
+
+	return p
+}
+
+type pipeReaderOptions struct {
+	format LogFormat
+	level  LogLevel
+}
+
+type PipeReaderOption interface {
+	setOption(*pipeReaderOptions)
+}
+
+type pipeReaderOptionFunc func(*pipeReaderOptions)
+
+func (p pipeReaderOptionFunc) setOption(o *pipeReaderOptions) {
+	p(o)
+}
+
+// PipeFormat sets the output format of the pipe reader
+func PipeFormat(format LogFormat) PipeReaderOption {
+	return pipeReaderOptionFunc(func(o *pipeReaderOptions) {
+		o.format = format
+	})
+}
+
+// PipeLevel sets the log level of logs sent to the pipe reader.
+func PipeLevel(level LogLevel) PipeReaderOption {
+	return pipeReaderOptionFunc(func(o *pipeReaderOptions) {
+		o.level = level
+	})
+}

vendor/github.com/ipfs/go-log/v2/setup.go

@@ -0,0 +1,400 @@
+package log
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"regexp"
+	"strings"
+	"sync"
+
+	"github.com/mattn/go-isatty"
+	"go.uber.org/zap"
+	"go.uber.org/zap/zapcore"
+)
+
+var config Config
+
+func init() {
+	SetupLogging(configFromEnv())
+}
+
+// Logging environment variables
+const (
+	// IPFS_* prefixed env vars kept for backwards compatibility
+	// for this release. They will not be available in the next
+	// release.
+	//
+	// GOLOG_* env vars take precedences over IPFS_* env vars.
+	envIPFSLogging    = "IPFS_LOGGING"
+	envIPFSLoggingFmt = "IPFS_LOGGING_FMT"
+
+	envLogging    = "GOLOG_LOG_LEVEL"
+	envLoggingFmt = "GOLOG_LOG_FMT"
+
+	envLoggingFile = "GOLOG_FILE" // /path/to/file
+	envLoggingURL  = "GOLOG_URL"  // url that will be processed by sink in the zap
+
+	envLoggingOutput = "GOLOG_OUTPUT"     // possible values: stdout|stderr|file combine multiple values with '+'
+	envLoggingLabels = "GOLOG_LOG_LABELS" // comma-separated key-value pairs, i.e. "app=example_app,dc=sjc-1"
+)
+
+type LogFormat int
+
+const (
+	ColorizedOutput LogFormat = iota
+	PlaintextOutput
+	JSONOutput
+)
+
+type Config struct {
+	// Format overrides the format of the log output. Defaults to ColorizedOutput
+	Format LogFormat
+
+	// Level is the default minimum enabled logging level.
+	Level LogLevel
+
+	// SubsystemLevels are the default levels per-subsystem. When unspecified, defaults to Level.
+	SubsystemLevels map[string]LogLevel
+
+	// Stderr indicates whether logs should be written to stderr.
+	Stderr bool
+
+	// Stdout indicates whether logs should be written to stdout.
+	Stdout bool
+
+	// File is a path to a file that logs will be written to.
+	File string
+
+	// URL with schema supported by zap. Use zap.RegisterSink
+	URL string
+
+	// Labels is a set of key-values to apply to all loggers
+	Labels map[string]string
+}
+
+// ErrNoSuchLogger is returned when the util pkg is asked for a non existant logger
+var ErrNoSuchLogger = errors.New("error: No such logger")
+
+var loggerMutex sync.RWMutex // guards access to global logger state
+
+// loggers is the set of loggers in the system
+var loggers = make(map[string]*zap.SugaredLogger)
+var levels = make(map[string]zap.AtomicLevel)
+
+// primaryFormat is the format of the primary core used for logging
+var primaryFormat LogFormat = ColorizedOutput
+
+// defaultLevel is the default log level
+var defaultLevel LogLevel = LevelError
+
+// primaryCore is the primary logging core
+var primaryCore zapcore.Core
+
+// loggerCore is the base for all loggers created by this package
+var loggerCore = &lockedMultiCore{}
+
+// GetConfig returns a copy of the saved config. It can be inspected, modified,
+// and re-applied using a subsequent call to SetupLogging().
+func GetConfig() Config {
+	return config
+}
+
+// SetupLogging will initialize the logger backend and set the flags.
+// TODO calling this in `init` pushes all configuration to env variables
+// - move it out of `init`? then we need to change all the code (js-ipfs, go-ipfs) to call this explicitly
+// - have it look for a config file? need to define what that is
+func SetupLogging(cfg Config) {
+	loggerMutex.Lock()
+	defer loggerMutex.Unlock()
+
+	config = cfg
+
+	primaryFormat = cfg.Format
+	defaultLevel = cfg.Level
+
+	outputPaths := []string{}
+
+	if cfg.Stderr {
+		outputPaths = append(outputPaths, "stderr")
+	}
+	if cfg.Stdout {
+		outputPaths = append(outputPaths, "stdout")
+	}
+
+	// check if we log to a file
+	if len(cfg.File) > 0 {
+		if path, err := normalizePath(cfg.File); err != nil {
+			fmt.Fprintf(os.Stderr, "failed to resolve log path '%q', logging to %s\n", cfg.File, outputPaths)
+		} else {
+			outputPaths = append(outputPaths, path)
+		}
+	}
+	if len(cfg.URL) > 0 {
+		outputPaths = append(outputPaths, cfg.URL)
+	}
+
+	ws, _, err := zap.Open(outputPaths...)
+	if err != nil {
+		panic(fmt.Sprintf("unable to open logging output: %v", err))
+	}
+
+	newPrimaryCore := newCore(primaryFormat, ws, LevelDebug) // the main core needs to log everything.
+
+	for k, v := range cfg.Labels {
+		newPrimaryCore = newPrimaryCore.With([]zap.Field{zap.String(k, v)})
+	}
+
+	setPrimaryCore(newPrimaryCore)
+	setAllLoggers(defaultLevel)
+
+	for name, level := range cfg.SubsystemLevels {
+		if leveler, ok := levels[name]; ok {
+			leveler.SetLevel(zapcore.Level(level))
+		} else {
+			levels[name] = zap.NewAtomicLevelAt(zapcore.Level(level))
+		}
+	}
+}
+
+// SetPrimaryCore changes the primary logging core. If the SetupLogging was
+// called then the previously configured core will be replaced.
+func SetPrimaryCore(core zapcore.Core) {
+	loggerMutex.Lock()
+	defer loggerMutex.Unlock()
+
+	setPrimaryCore(core)
+}
+
+func setPrimaryCore(core zapcore.Core) {
+	if primaryCore != nil {
+		loggerCore.ReplaceCore(primaryCore, core)
+	} else {
+		loggerCore.AddCore(core)
+	}
+	primaryCore = core
+}
+
+// SetDebugLogging calls SetAllLoggers with logging.DEBUG
+func SetDebugLogging() {
+	SetAllLoggers(LevelDebug)
+}
+
+// SetAllLoggers changes the logging level of all loggers to lvl
+func SetAllLoggers(lvl LogLevel) {
+	loggerMutex.RLock()
+	defer loggerMutex.RUnlock()
+
+	setAllLoggers(lvl)
+}
+
+func setAllLoggers(lvl LogLevel) {
+	for _, l := range levels {
+		l.SetLevel(zapcore.Level(lvl))
+	}
+}
+
+// SetLogLevel changes the log level of a specific subsystem
+// name=="*" changes all subsystems
+func SetLogLevel(name, level string) error {
+	lvl, err := LevelFromString(level)
+	if err != nil {
+		return err
+	}
+
+	// wildcard, change all
+	if name == "*" {
+		SetAllLoggers(lvl)
+		return nil
+	}
+
+	loggerMutex.RLock()
+	defer loggerMutex.RUnlock()
+
+	// Check if we have a logger by that name
+	if _, ok := levels[name]; !ok {
+		return ErrNoSuchLogger
+	}
+
+	levels[name].SetLevel(zapcore.Level(lvl))
+
+	return nil
+}
+
+// SetLogLevelRegex sets all loggers to level `l` that match expression `e`.
+// An error is returned if `e` fails to compile.
+func SetLogLevelRegex(e, l string) error {
+	lvl, err := LevelFromString(l)
+	if err != nil {
+		return err
+	}
+
+	rem, err := regexp.Compile(e)
+	if err != nil {
+		return err
+	}
+
+	loggerMutex.Lock()
+	defer loggerMutex.Unlock()
+	for name := range loggers {
+		if rem.MatchString(name) {
+			levels[name].SetLevel(zapcore.Level(lvl))
+		}
+	}
+	return nil
+}
+
+// GetSubsystems returns a slice containing the
+// names of the current loggers
+func GetSubsystems() []string {
+	loggerMutex.RLock()
+	defer loggerMutex.RUnlock()
+	subs := make([]string, 0, len(loggers))
+
+	for k := range loggers {
+		subs = append(subs, k)
+	}
+	return subs
+}
+
+func getLogger(name string) *zap.SugaredLogger {
+	loggerMutex.Lock()
+	defer loggerMutex.Unlock()
+	log, ok := loggers[name]
+	if !ok {
+		level, ok := levels[name]
+		if !ok {
+			level = zap.NewAtomicLevelAt(zapcore.Level(defaultLevel))
+			levels[name] = level
+		}
+		log = zap.New(loggerCore).
+			WithOptions(
+				zap.IncreaseLevel(level),
+				zap.AddCaller(),
+			).
+			Named(name).
+			Sugar()
+
+		loggers[name] = log
+	}
+
+	return log
+}
+
+// configFromEnv returns a Config with defaults populated using environment variables.
+func configFromEnv() Config {
+	cfg := Config{
+		Format:          ColorizedOutput,
+		Stderr:          true,
+		Level:           LevelError,
+		SubsystemLevels: map[string]LogLevel{},
+		Labels:          map[string]string{},
+	}
+
+	format := os.Getenv(envLoggingFmt)
+	if format == "" {
+		format = os.Getenv(envIPFSLoggingFmt)
+	}
+
+	var noExplicitFormat bool
+
+	switch format {
+	case "color":
+		cfg.Format = ColorizedOutput
+	case "nocolor":
+		cfg.Format = PlaintextOutput
+	case "json":
+		cfg.Format = JSONOutput
+	default:
+		if format != "" {
+			fmt.Fprintf(os.Stderr, "ignoring unrecognized log format '%s'\n", format)
+		}
+		noExplicitFormat = true
+	}
+
+	lvl := os.Getenv(envLogging)
+	if lvl == "" {
+		lvl = os.Getenv(envIPFSLogging)
+	}
+	if lvl != "" {
+		for _, kvs := range strings.Split(lvl, ",") {
+			kv := strings.SplitN(kvs, "=", 2)
+			lvl, err := LevelFromString(kv[len(kv)-1])
+			if err != nil {
+				fmt.Fprintf(os.Stderr, "error setting log level %q: %s\n", kvs, err)
+				continue
+			}
+			switch len(kv) {
+			case 1:
+				cfg.Level = lvl
+			case 2:
+				cfg.SubsystemLevels[kv[0]] = lvl
+			}
+		}
+	}
+
+	cfg.File = os.Getenv(envLoggingFile)
+	// Disable stderr logging when a file is specified
+	// https://github.com/ipfs/go-log/issues/83
+	if cfg.File != "" {
+		cfg.Stderr = false
+	}
+
+	cfg.URL = os.Getenv(envLoggingURL)
+	output := os.Getenv(envLoggingOutput)
+	outputOptions := strings.Split(output, "+")
+	for _, opt := range outputOptions {
+		switch opt {
+		case "stdout":
+			cfg.Stdout = true
+		case "stderr":
+			cfg.Stderr = true
+		case "file":
+			if cfg.File == "" {
+				fmt.Fprint(os.Stderr, "please specify a GOLOG_FILE value to write to")
+			}
+		case "url":
+			if cfg.URL == "" {
+				fmt.Fprint(os.Stderr, "please specify a GOLOG_URL value to write to")
+			}
+		}
+	}
+
+	// Check that neither of the requested Std* nor the file are TTYs
+	// At this stage (configFromEnv) we do not have a uniform list to examine yet
+	if noExplicitFormat &&
+		!(cfg.Stdout && isTerm(os.Stdout)) &&
+		!(cfg.Stderr && isTerm(os.Stderr)) &&
+		// check this last: expensive
+		!(cfg.File != "" && pathIsTerm(cfg.File)) {
+		cfg.Format = PlaintextOutput
+	}
+
+	labels := os.Getenv(envLoggingLabels)
+	if labels != "" {
+		labelKVs := strings.Split(labels, ",")
+		for _, label := range labelKVs {
+			kv := strings.Split(label, "=")
+			if len(kv) != 2 {
+				fmt.Fprint(os.Stderr, "invalid label k=v: ", label)
+				continue
+			}
+			cfg.Labels[kv[0]] = kv[1]
+		}
+	}
+
+	return cfg
+}
+
+func isTerm(f *os.File) bool {
+	return isatty.IsTerminal(f.Fd()) || isatty.IsCygwinTerminal(f.Fd())
+}
+
+func pathIsTerm(p string) bool {
+	// !!!no!!! O_CREAT, if we fail - we fail
+	f, err := os.OpenFile(p, os.O_WRONLY, 0)
+	if f != nil {
+		defer f.Close() // nolint:errcheck
+	}
+	return err == nil && isTerm(f)
+}

vendor/github.com/ipfs/go-log/v2/version.json

@@ -0,0 +1,3 @@
+{
+  "version": "v2.5.0"
+}