135 lines
4.1 KiB
Go
135 lines
4.1 KiB
Go
package hcl2template
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import (
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"fmt"
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"github.com/hashicorp/hcl/v2"
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"github.com/hashicorp/hcl/v2/gohcl"
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"github.com/hashicorp/packer/packer"
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"github.com/zclconf/go-cty/cty"
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)
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// ProvisionerBlock references a detected but unparsed post processor
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type PostProcessorBlock struct {
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PType string
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PName string
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OnlyExcept OnlyExcept
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KeepInputArtifact *bool
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HCL2Ref
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}
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func (p *PostProcessorBlock) String() string {
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return fmt.Sprintf(buildPostProcessorLabel+"-block %q %q", p.PType, p.PName)
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}
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func (p *Parser) decodePostProcessor(block *hcl.Block) (*PostProcessorBlock, hcl.Diagnostics) {
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var b struct {
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Name string `hcl:"name,optional"`
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Only []string `hcl:"only,optional"`
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Except []string `hcl:"except,optional"`
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KeepInputArtifact *bool `hcl:"keep_input_artifact,optional"`
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Rest hcl.Body `hcl:",remain"`
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}
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diags := gohcl.DecodeBody(block.Body, nil, &b)
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if diags.HasErrors() {
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return nil, diags
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}
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postProcessor := &PostProcessorBlock{
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PType: block.Labels[0],
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PName: b.Name,
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OnlyExcept: OnlyExcept{Only: b.Only, Except: b.Except},
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HCL2Ref: newHCL2Ref(block, b.Rest),
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KeepInputArtifact: b.KeepInputArtifact,
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}
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diags = diags.Extend(postProcessor.OnlyExcept.Validate())
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if diags.HasErrors() {
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return nil, diags
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}
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if !p.PostProcessorsSchemas.Has(postProcessor.PType) {
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diags = append(diags, &hcl.Diagnostic{
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Summary: fmt.Sprintf("Unknown "+buildPostProcessorLabel+" type %q", postProcessor.PType),
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Subject: block.LabelRanges[0].Ptr(),
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Detail: fmt.Sprintf("known "+buildPostProcessorLabel+"s: %v", p.PostProcessorsSchemas.List()),
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Severity: hcl.DiagError,
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})
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return nil, diags
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}
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return postProcessor, diags
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}
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func (cfg *PackerConfig) startPostProcessor(source SourceBlock, pp *PostProcessorBlock, ectx *hcl.EvalContext) (packer.PostProcessor, hcl.Diagnostics) {
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// ProvisionerBlock represents a detected but unparsed provisioner
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var diags hcl.Diagnostics
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postProcessor, err := cfg.postProcessorsSchemas.Start(pp.PType)
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if err != nil {
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diags = append(diags, &hcl.Diagnostic{
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Summary: fmt.Sprintf("Failed loading %s", pp.PType),
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Subject: pp.DefRange.Ptr(),
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Detail: err.Error(),
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})
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return nil, diags
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}
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flatProvisinerCfg, moreDiags := decodeHCL2Spec(pp.Rest, ectx, postProcessor)
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diags = append(diags, moreDiags...)
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err = postProcessor.Configure(source.builderVariables(), flatProvisinerCfg)
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if err != nil {
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diags = append(diags, &hcl.Diagnostic{
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Severity: hcl.DiagError,
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Summary: fmt.Sprintf("Failed preparing %s", pp),
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Detail: err.Error(),
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Subject: pp.DefRange.Ptr(),
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})
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return nil, diags
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}
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return postProcessor, diags
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}
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type postProcessorsPrepare struct {
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cfg *PackerConfig
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postProcessorBlock []*PostProcessorBlock
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src SourceRef
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}
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// HCL2PostProcessorsPrepare is used by the CoreBuild at the runtime, after running the build and before running the post-processors,
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// to interpolate any build variable by decoding and preparing it.
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func (pp *postProcessorsPrepare) HCL2PostProcessorsPrepare(builderArtifact packer.Artifact) ([]packer.CoreBuildPostProcessor, hcl.Diagnostics) {
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src := pp.cfg.Sources[pp.src.Ref()]
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generatedData := make(map[string]interface{})
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if builderArtifact != nil {
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artifactStateData := builderArtifact.State("generated_data")
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if artifactStateData != nil {
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for k, v := range artifactStateData.(map[interface{}]interface{}) {
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generatedData[k.(string)] = v
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}
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}
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}
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variables := make(Variables)
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for k, v := range generatedData {
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if value, ok := v.(string); ok {
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variables[k] = &Variable{
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DefaultValue: cty.StringVal(value),
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Type: cty.String,
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}
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}
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}
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variablesVal, _ := variables.Values()
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generatedVariables := map[string]cty.Value{
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sourcesAccessor: cty.ObjectVal(map[string]cty.Value{
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"type": cty.StringVal(src.Type),
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"name": cty.StringVal(src.Name),
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}),
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buildAccessor: cty.ObjectVal(variablesVal),
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}
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return pp.cfg.getCoreBuildPostProcessors(src, pp.postProcessorBlock, pp.cfg.EvalContext(generatedVariables))
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}
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