93 lines
2.3 KiB
Go
93 lines
2.3 KiB
Go
/*
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Copyright The Velero Contributors.
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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 restore
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import (
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"fmt"
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"strings"
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)
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const (
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prioritySeparator = "-"
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)
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// Priorities defines the desired order of resource operations:
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// Resources in the HighPriorities list will be handled first
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// Resources in the LowPriorities list will be handled last
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// Other resources will be handled alphabetically after the high prioritized resources and before the low prioritized resources
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type Priorities struct {
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HighPriorities []string
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LowPriorities []string
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}
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// String returns a string representation of Priority.
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func (p *Priorities) String() string {
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priorities := p.HighPriorities
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if len(p.LowPriorities) > 0 {
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priorities = append(priorities, prioritySeparator)
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priorities = append(priorities, p.LowPriorities...)
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}
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return strings.Join(priorities, ",")
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}
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// Set parses the provided string to the priority object
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func (p *Priorities) Set(s string) error {
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if len(s) == 0 {
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return nil
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}
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strs := strings.Split(s, ",")
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separatorIndex := -1
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for i, str := range strs {
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if str == prioritySeparator {
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if separatorIndex > -1 {
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return fmt.Errorf("multiple priority separator %q found", prioritySeparator)
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}
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separatorIndex = i
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}
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}
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// has no separator
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if separatorIndex == -1 {
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p.HighPriorities = strs
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return nil
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}
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// start with separator
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if separatorIndex == 0 {
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// contain only separator
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if len(strs) == 1 {
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return nil
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}
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p.LowPriorities = strs[1:]
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return nil
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}
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// end with separator
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if separatorIndex == len(strs)-1 {
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p.HighPriorities = strs[:len(strs)-1]
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return nil
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}
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// separator in the middle
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p.HighPriorities = strs[:separatorIndex]
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p.LowPriorities = strs[separatorIndex+1:]
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return nil
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}
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// Type specifies the flag type
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func (p *Priorities) Type() string {
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return "stringArray"
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}
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