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setup.go
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setup.go
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package main
import (
"errors"
"time"
"github.com/gin-contrib/zap"
"github.com/gin-gonic/gin"
"github.com/jessevdk/go-flags"
"github.com/mattn/go-colorable"
log "go.uber.org/zap"
"go.uber.org/zap/zapcore"
)
var (
// ErrGotHelp returned after showing requested help
ErrGotHelp = errors.New("help printed")
// ErrBadArgs returned after showing command args error message
ErrBadArgs = errors.New("option error printed")
)
// setupConfig loads flags from args (if given) or command flags and ENV otherwise
func setupConfig(args ...string) (*Config, error) {
cfg := &Config{}
p := flags.NewParser(cfg, flags.Default) // HelpFlag | PrintErrors | PassDoubleDash
var err error
if len(args) == 0 {
_, err = p.Parse()
} else {
_, err = p.ParseArgs(args)
}
if err != nil {
//fmt.Printf("Args error: %#v", err)
if e, ok := err.(*flags.Error); ok && e.Type == flags.ErrHelp {
return nil, ErrGotHelp
}
return nil, ErrBadArgs
}
return cfg, nil
}
// setupLog creates logger
func setupLog(cfg *Config, r *gin.Engine) *log.SugaredLogger {
var l *log.Logger
if gin.IsDebugging() {
//l, _ = log.NewDevelopment()
aa := log.NewDevelopmentEncoderConfig()
aa.EncodeLevel = zapcore.CapitalColorLevelEncoder
l = log.New(zapcore.NewCore(
zapcore.NewConsoleEncoder(aa),
zapcore.AddSync(colorable.NewColorableStdout()),
zapcore.DebugLevel,
),
log.AddCaller(),
)
} else {
l, _ = log.NewProduction()
}
r.Use(ginzap.Ginzap(l, time.RFC3339, false))
// Logs all panic to error log
// - stack means whether output the stack info.
r.Use(ginzap.RecoveryWithZap(l, true))
return l.Sugar()
}