115 lines
3.2 KiB
Go
115 lines
3.2 KiB
Go
package hcl2template
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import (
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"fmt"
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"time"
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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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)
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// ProvisionerBlock references a detected but unparsed provisioner
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type ProvisionerBlock struct {
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PType string
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PName string
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PauseBefore time.Duration
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MaxRetries int
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Timeout time.Duration
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HCL2Ref
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}
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func (p *ProvisionerBlock) String() string {
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return fmt.Sprintf(buildProvisionerLabel+"-block %q %q", p.PType, p.PName)
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}
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func (p *Parser) decodeProvisioner(block *hcl.Block) (*ProvisionerBlock, hcl.Diagnostics) {
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var b struct {
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Name string `hcl:"name,optional"`
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PauseBefore string `hcl:"pause_before,optional"`
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MaxRetries int `hcl:"max_retries,optional"`
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Timeout string `hcl:"timeout,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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provisioner := &ProvisionerBlock{
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PType: block.Labels[0],
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PName: b.Name,
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MaxRetries: b.MaxRetries,
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HCL2Ref: newHCL2Ref(block, b.Rest),
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}
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if b.PauseBefore != "" {
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pauseBefore, err := time.ParseDuration(b.PauseBefore)
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if err != nil {
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return nil, append(diags, &hcl.Diagnostic{
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Summary: "Failed to parse pause_before duration",
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Detail: err.Error(),
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})
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}
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provisioner.PauseBefore = pauseBefore
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}
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if b.Timeout != "" {
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timeout, err := time.ParseDuration(b.Timeout)
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if err != nil {
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return nil, append(diags, &hcl.Diagnostic{
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Summary: "Failed to parse timeout duration",
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Detail: err.Error(),
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})
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}
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provisioner.Timeout = timeout
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}
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if !p.ProvisionersSchemas.Has(provisioner.PType) {
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diags = append(diags, &hcl.Diagnostic{
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Summary: fmt.Sprintf("Unknown "+buildProvisionerLabel+" type %q", provisioner.PType),
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Subject: block.LabelRanges[0].Ptr(),
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Detail: fmt.Sprintf("known "+buildProvisionerLabel+"s: %v", p.ProvisionersSchemas.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 provisioner, diags
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}
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func (p *Parser) startProvisioner(source *SourceBlock, pb *ProvisionerBlock, ectx *hcl.EvalContext, generatedVars map[string]string) (packer.Provisioner, hcl.Diagnostics) {
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var diags hcl.Diagnostics
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provisioner, err := p.ProvisionersSchemas.Start(pb.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", pb.PType),
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Subject: pb.HCL2Ref.LabelsRanges[0].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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flatProvisionerCfg, moreDiags := decodeHCL2Spec(pb.HCL2Ref.Rest, ectx, provisioner)
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diags = append(diags, moreDiags...)
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if diags.HasErrors() {
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return nil, diags
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}
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// manipulate generatedVars from builder to add to the interfaces being
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// passed to the provisioner Prepare()
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// configs := make([]interface{}, 2)
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// configs = append(, flatProvisionerCfg)
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// configs = append(configs, generatedVars)
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err = provisioner.Prepare(source.builderVariables(), flatProvisionerCfg, generatedVars)
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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", pb),
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Detail: err.Error(),
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Subject: pb.HCL2Ref.DefRange.Ptr(),
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})
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return nil, diags
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}
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return provisioner, diags
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}
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