open-nomad/jobspec/utils.go

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package jobspec
// flattenMapSlice flattens any occurrences of []map[string]interface{} into
// map[string]interface{}.
func flattenMapSlice(m map[string]interface{}) map[string]interface{} {
newM := make(map[string]interface{}, len(m))
for k, v := range m {
var newV interface{}
switch mapV := v.(type) {
case []map[string]interface{}:
// Recurse into each map and flatten values
newMap := map[string]interface{}{}
for _, innerM := range mapV {
for innerK, innerV := range flattenMapSlice(innerM) {
newMap[innerK] = innerV
}
}
newV = newMap
case map[string]interface{}:
// Recursively flatten maps
newV = flattenMapSlice(mapV)
default:
newV = v
}
newM[k] = newV
}
return newM
}