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34 lines
866 B
Go
34 lines
866 B
Go
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package expander
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import "sort"
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// Expand expands variables into the Yaml configuration using a
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// ${key} template parameter with limited support for bash string functions.
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func Expand(config []byte, envs map[string]string) []byte {
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return []byte(
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ExpandString(string(config), envs),
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)
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}
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// ExpandString injects the variables into the Yaml configuration string using
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// a ${key} template parameter with limited support for bash string functions.
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func ExpandString(config string, envs map[string]string) string {
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if envs == nil || len(envs) == 0 {
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return config
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}
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keys := []string{}
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for k := range envs {
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keys = append(keys, k)
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}
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sort.Sort(sort.Reverse(sort.StringSlice(keys)))
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expanded := config
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for _, k := range keys {
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v := envs[k]
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for _, substitute := range substitutors {
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expanded = substitute(expanded, k, v)
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}
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}
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return expanded
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}
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