33 lines
767 B
Go
33 lines
767 B
Go
package function
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import (
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"os"
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"github.com/zclconf/go-cty/cty"
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"github.com/zclconf/go-cty/cty/function"
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)
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// EnvFunc constructs a function that returns a string representation of the
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// env var behind a value
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var EnvFunc = function.New(&function.Spec{
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Params: []function.Parameter{
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{
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Name: "key",
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Type: cty.String,
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AllowNull: false,
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AllowUnknown: false,
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},
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},
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Type: function.StaticReturnType(cty.String),
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Impl: func(args []cty.Value, retType cty.Type) (cty.Value, error) {
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key := args[0].AsString()
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value := os.Getenv(key)
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return cty.StringVal(value), nil
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},
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})
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// Env returns a string representation of the env var behind key.
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func Env(key cty.Value) (cty.Value, error) {
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return EnvFunc.Call([]cty.Value{key})
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}
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