mirror of
https://github.com/restic/restic.git
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Among others, this updates minio-go, so that the new "eu-west-3" zone for AWS is supported.
87 lines
2.1 KiB
Go
87 lines
2.1 KiB
Go
// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package cldrtree
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import (
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"reflect"
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"golang.org/x/text/unicode/cldr"
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)
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// An Option configures an Index.
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type Option func(*options)
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type options struct {
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parent *Index
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name string
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alias *cldr.Common
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sharedType *typeInfo
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sharedEnums *enum
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}
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func (o *options) fill(opt []Option) {
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for _, f := range opt {
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f(o)
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}
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}
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// aliasOpt sets an alias from the given node, if the node defines one.
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func (o *options) setAlias(n Element) {
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if n != nil && !reflect.ValueOf(n).IsNil() {
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o.alias = n.GetCommon()
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}
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}
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// Enum defines a enumeration type. The resulting option may be passed for the
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// construction of multiple Indexes, which they will share the same enum values.
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// Calling Gen on a Builder will generate the Enum for the given name. The
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// optional values fix the values for the given identifier to the argument
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// position (starting at 0). Other values may still be added and will be
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// assigned to subsequent values.
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func Enum(name string, value ...string) Option {
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return EnumFunc(name, nil, value...)
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}
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// EnumFunc is like Enum but also takes a function that allows rewriting keys.
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func EnumFunc(name string, rename func(string) string, value ...string) Option {
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enum := &enum{name: name, rename: rename, keyMap: map[string]enumIndex{}}
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for _, e := range value {
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enum.lookup(e)
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}
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return func(o *options) {
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found := false
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for _, e := range o.parent.meta.b.enums {
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if e.name == enum.name {
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found = true
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break
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}
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}
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if !found {
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o.parent.meta.b.enums = append(o.parent.meta.b.enums, enum)
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}
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o.sharedEnums = enum
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}
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}
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// SharedType returns an option which causes all Indexes to which this option is
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// passed to have the same type.
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func SharedType() Option {
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info := &typeInfo{}
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return func(o *options) { o.sharedType = info }
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}
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func useSharedType() Option {
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return func(o *options) {
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sub := o.parent.meta.typeInfo.keyTypeInfo
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if sub == nil {
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sub = &typeInfo{}
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o.parent.meta.typeInfo.keyTypeInfo = sub
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}
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o.sharedType = sub
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}
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}
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