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* Updating the license from MPL to Business Source License Going forward, this project will be licensed under the Business Source License v1.1. Please see our blog post for more details at https://hashi.co/bsl-blog, FAQ at https://hashi.co/license-faq, and details of the license at www.hashicorp.com/bsl. * Update copyright file headers to BUSL-1.1 --------- Co-authored-by: hashicorp-copywrite[bot] <110428419+hashicorp-copywrite[bot]@users.noreply.github.com>
71 lines
1.8 KiB
Go
71 lines
1.8 KiB
Go
// Copyright (c) HashiCorp, Inc.
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// SPDX-License-Identifier: BUSL-1.1
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//go:generate packer-sdc struct-markdown
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//go:generate packer-sdc mapstructure-to-hcl2 -type DatasourceOutput,Config
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package null
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import (
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"fmt"
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"github.com/zclconf/go-cty/cty"
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"github.com/hashicorp/hcl/v2/hcldec"
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"github.com/hashicorp/packer-plugin-sdk/common"
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"github.com/hashicorp/packer-plugin-sdk/hcl2helper"
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packersdk "github.com/hashicorp/packer-plugin-sdk/packer"
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"github.com/hashicorp/packer-plugin-sdk/template/config"
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)
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type Datasource struct {
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config Config
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}
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// The Null data source is designed to demonstrate how data sources work, and
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// to provide a test plugin. It does not do anything useful; you assign an
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// input string and it gets returned as an output string.
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type Config struct {
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common.PackerConfig `mapstructure:",squash"`
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// This variable will get stored as "output" in the output spec.
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Input string `mapstructure:"input" required:"true"`
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}
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func (d *Datasource) ConfigSpec() hcldec.ObjectSpec {
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return d.config.FlatMapstructure().HCL2Spec()
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}
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func (d *Datasource) Configure(raws ...interface{}) error {
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err := config.Decode(&d.config, nil, raws...)
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if err != nil {
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return err
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}
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var errs *packersdk.MultiError
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if d.config.Input == "" {
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errs = packersdk.MultiErrorAppend(errs, fmt.Errorf("The `input` must be specified"))
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}
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if errs != nil && len(errs.Errors) > 0 {
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return errs
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}
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return nil
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}
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type DatasourceOutput struct {
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// Output will return the input variable, as output.
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Output string `mapstructure:"output"`
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}
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func (d *Datasource) OutputSpec() hcldec.ObjectSpec {
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return (&DatasourceOutput{}).FlatMapstructure().HCL2Spec()
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}
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func (d *Datasource) Execute() (cty.Value, error) {
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// Pass input variable through to output.
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output := DatasourceOutput{
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Output: d.config.Input,
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}
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return hcl2helper.HCL2ValueFromConfig(output, d.OutputSpec()), nil
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}
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