193dad46e6
Mainly redefine or reused what Terraform did. * allow to used `variables`, `variable` and `local` blocks * import the following functions and their docs from Terraform: abs, abspath, basename, base64decode, base64encode, bcrypt, can, ceil, chomp, chunklist, cidrhost, cidrnetmask, cidrsubnet, cidrsubnets, coalesce, coalescelist, compact, concat, contains, convert, csvdecode, dirname, distinct, element, file, fileexists, fileset, flatten, floor, format, formatdate, formatlist, indent, index, join, jsondecode, jsonencode, keys, length, log, lookup, lower, max, md5, merge, min, parseint, pathexpand, pow, range, reverse, rsadecrypt, setintersection, setproduct, setunion, sha1, sha256, sha512, signum, slice, sort, split, strrev, substr, timestamp, timeadd, title, trim, trimprefix, trimspace, trimsuffix, try, upper, urlencode, uuidv4, uuidv5, values, yamldecode, yamlencode, zipmap.
85 lines
1.9 KiB
Go
85 lines
1.9 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/packer/packer"
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)
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// SourceBlock references an HCL 'source' block.
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type SourceBlock struct {
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// Type of source; ex: virtualbox-iso
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Type string
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// Given name; if any
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Name string
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block *hcl.Block
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}
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func (p *Parser) decodeSource(block *hcl.Block) (*SourceBlock, hcl.Diagnostics) {
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source := &SourceBlock{
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Type: block.Labels[0],
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Name: block.Labels[1],
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block: block,
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}
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var diags hcl.Diagnostics
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if !p.BuilderSchemas.Has(source.Type) {
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diags = append(diags, &hcl.Diagnostic{
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Summary: "Unknown " + buildSourceLabel + " type " + source.Type,
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Subject: block.LabelRanges[0].Ptr(),
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Detail: fmt.Sprintf("known builders: %v", p.BuilderSchemas.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 source, diags
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}
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func (p *Parser) startBuilder(source *SourceBlock, ectx *hcl.EvalContext) (packer.Builder, hcl.Diagnostics, []string) {
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var diags hcl.Diagnostics
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builder, err := p.BuilderSchemas.Start(source.Type)
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if err != nil {
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diags = append(diags, &hcl.Diagnostic{
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Summary: "Failed to load " + sourceLabel + " type",
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Detail: err.Error(),
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Subject: &source.block.LabelRanges[0],
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})
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return builder, diags, nil
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}
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decoded, moreDiags := decodeHCL2Spec(source.block.Body, ectx, builder)
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diags = append(diags, moreDiags...)
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if moreDiags.HasErrors() {
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return nil, diags, nil
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}
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generatedVars, warning, err := builder.Prepare(decoded)
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moreDiags = warningErrorsToDiags(source.block, warning, err)
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diags = append(diags, moreDiags...)
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return builder, diags, generatedVars
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}
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func (source *SourceBlock) Ref() SourceRef {
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return SourceRef{
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Type: source.Type,
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Name: source.Name,
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}
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}
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type SourceRef struct {
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Type string
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Name string
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}
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// NoSource is the zero value of sourceRef, representing the absense of an
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// source.
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var NoSource SourceRef
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func (r SourceRef) String() string {
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return fmt.Sprintf("%s.%s", r.Type, r.Name)
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}
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