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9d6706d48e
* Feat: vela create kubeconfig Signed-off-by: Somefive <yd219913@alibaba-inc.com> * Chore: refactor Signed-off-by: Somefive <yd219913@alibaba-inc.com>
72 lines
2.1 KiB
Go
72 lines
2.1 KiB
Go
/*
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Copyright 2021 The KubeVela Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package util
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import (
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"bytes"
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"fmt"
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"io"
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"os"
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)
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// IOStreams provides the standard names for iostreams. This is useful for embedding and for unit testing.
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// Inconsistent and different names make it hard to read and review code
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type IOStreams struct {
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// In think, os.Stdin
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In io.Reader
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// Out think, os.Stdout
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Out io.Writer
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// ErrOut think, os.Stderr
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ErrOut io.Writer
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}
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// Infonln compared to Info(), won't print new line
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func (i *IOStreams) Infonln(a ...interface{}) {
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_, _ = i.Out.Write([]byte(fmt.Sprint(a...)))
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}
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// Info print info with new line
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func (i *IOStreams) Info(a ...interface{}) {
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_, _ = i.Out.Write([]byte(fmt.Sprintln(a...)))
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}
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// Infof print info in a specified format
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func (i *IOStreams) Infof(format string, a ...interface{}) {
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_, _ = i.Out.Write([]byte(fmt.Sprintf(format, a...)))
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}
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// Errorf print error info in a specified format
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func (i *IOStreams) Errorf(format string, a ...interface{}) {
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_, _ = i.ErrOut.Write([]byte(fmt.Sprintf(format, a...)))
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}
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// Error print error info
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func (i *IOStreams) Error(a ...interface{}) {
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_, _ = i.ErrOut.Write([]byte(fmt.Sprintln(a...)))
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}
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// NewDefaultIOStreams return IOStreams with standard input/output/error
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func NewDefaultIOStreams() IOStreams {
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return IOStreams{In: os.Stdin, Out: os.Stdout, ErrOut: os.Stderr}
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}
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// NewTestIOStreams return IOStreams with empty input and combined buffered output
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func NewTestIOStreams() (IOStreams, *bytes.Buffer) {
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var buf bytes.Buffer
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return IOStreams{In: &bytes.Buffer{}, Out: &buf, ErrOut: &buf}, &buf
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}
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