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Update dependencies (#1813)
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86
vendor/github.com/spf13/viper/internal/encoding/javaproperties/codec.go
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vendored
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86
vendor/github.com/spf13/viper/internal/encoding/javaproperties/codec.go
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@ -0,0 +1,86 @@
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package javaproperties
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import (
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"bytes"
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"sort"
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"strings"
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"github.com/magiconair/properties"
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"github.com/spf13/cast"
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)
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// Codec implements the encoding.Encoder and encoding.Decoder interfaces for Java properties encoding.
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type Codec struct {
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KeyDelimiter string
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// Store read properties on the object so that we can write back in order with comments.
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// This will only be used if the configuration read is a properties file.
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// TODO: drop this feature in v2
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// TODO: make use of the global properties object optional
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Properties *properties.Properties
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}
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func (c *Codec) Encode(v map[string]interface{}) ([]byte, error) {
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if c.Properties == nil {
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c.Properties = properties.NewProperties()
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}
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flattened := map[string]interface{}{}
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flattened = flattenAndMergeMap(flattened, v, "", c.keyDelimiter())
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keys := make([]string, 0, len(flattened))
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for key := range flattened {
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keys = append(keys, key)
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}
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sort.Strings(keys)
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for _, key := range keys {
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_, _, err := c.Properties.Set(key, cast.ToString(flattened[key]))
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if err != nil {
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return nil, err
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}
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}
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var buf bytes.Buffer
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_, err := c.Properties.WriteComment(&buf, "#", properties.UTF8)
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if err != nil {
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return nil, err
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}
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return buf.Bytes(), nil
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}
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func (c *Codec) Decode(b []byte, v map[string]interface{}) error {
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var err error
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c.Properties, err = properties.Load(b, properties.UTF8)
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if err != nil {
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return err
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}
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for _, key := range c.Properties.Keys() {
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// ignore existence check: we know it's there
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value, _ := c.Properties.Get(key)
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// recursively build nested maps
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path := strings.Split(key, c.keyDelimiter())
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lastKey := strings.ToLower(path[len(path)-1])
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deepestMap := deepSearch(v, path[0:len(path)-1])
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// set innermost value
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deepestMap[lastKey] = value
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}
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return nil
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}
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func (c Codec) keyDelimiter() string {
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if c.KeyDelimiter == "" {
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return "."
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}
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return c.KeyDelimiter
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}
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