hcl

var ResolveVariableFromJSON = function.New(&function.Spec{
	Params: []function.Parameter{
		{
			Name: "filePath",
			Type: cty.String,
		}, {
			Name: "variableName",
			Type: cty.String,
		},
	},
	Type: function.StaticReturnType(cty.String),
	Impl: func(arguments []cty.Value, returnType cty.Type) (value cty.Value, err error) {
		var filePath = arguments[0].AsString()
		var variableName = arguments[1].AsString()

		if filePath, err = osext.ExpandTilde(filePath); err != nil {
			return
		}

		if filePath, err = filepath.Abs(filePath); err != nil {
			return
		}

		var variableValue string

		if variableValue, err = resolver.ResolveVariableFromJSON(filePath, variableName); err != nil {
			return
		}

		value = cty.StringVal(variableValue)

		return
	},
})

var ResolveVariableFromScript = function.New(&function.Spec{
	Params: []function.Parameter{
		{
			Name: "executable",
			Type: cty.String,
		},
		{
			Name: "filePath",
			Type: cty.String,
		}, {
			Name: "variableName",
			Type: cty.String,
		},
	},
	Type: function.StaticReturnType(cty.String),
	Impl: func(arguments []cty.Value, returnType cty.Type) (value cty.Value, err error) {
		var executable = arguments[0].AsString()
		var filePath = arguments[1].AsString()
		var variableName = arguments[2].AsString()

		if executable, err = osext.ExpandTilde(executable); err != nil {
			return
		}

		if filePath, err = osext.ExpandTilde(filePath); err != nil {
			return
		}

		if filePath, err = filepath.Abs(filePath); err != nil {
			return
		}

		var variableValue string

		if variableValue, err = resolver.ResolveVariableFromScript(executable, filePath, variableName); err != nil {
			return
		}

		value = cty.StringVal(variableValue)

		return
	},
})