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51eeadba3d
This commit adds 3 new HCL2 functions: * `sum`: computes the sum of a collection of numerical values * `startswith`: checks if a string has another as prefix * `endswith`: checks if a string has another as suffix
32 lines
734 B
Go
32 lines
734 B
Go
package function
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import (
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"strings"
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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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// StartsWithFunc constructs a function that checks if a string starts with
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// a specific prefix using strings.HasPrefix
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var StartsWithFunc = function.New(&function.Spec{
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Params: []function.Parameter{
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{
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Name: "str",
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Type: cty.String,
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AllowUnknown: false,
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},
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{
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Name: "prefix",
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Type: cty.String,
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},
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},
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Type: function.StaticReturnType(cty.Bool),
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RefineResult: refineNotNull,
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Impl: func(args []cty.Value, retType cty.Type) (cty.Value, error) {
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str := args[0].AsString()
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prefix := args[1].AsString()
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return cty.BoolVal(strings.HasPrefix(str, prefix)), nil
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},
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})
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