flagger/exported.go

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// Flagger - arbitrary CLI flags parser.
//
// Copyright (c) 2017-2019, Stanislav N. aka pztrn.
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//
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// 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:
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//
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// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
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//
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// 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.
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package flagger
import (
// stdlib
"log"
"os"
)
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var (
logger LoggerInterface
applicationName string
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)
// New creates new Flagger instance.
// If no logger will be passed - we will use default "log" module and will
// print logs to stdout.
func New(appName string, l LoggerInterface) *Flagger {
applicationName = appName
if l == nil {
lg := log.New(os.Stdout, "Flagger: ", log.LstdFlags)
logger = LoggerInterface(lg)
} else {
logger = l
}
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f := Flagger{}
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return &f
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}