86 lines
2.4 KiB
Go
86 lines
2.4 KiB
Go
package tfconfig
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import (
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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/zclconf/go-cty/cty/gocty"
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)
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// ProviderRef is a reference to a provider configuration within a module.
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// It represents the contents of a "provider" argument in a resource, or
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// a value in the "providers" map for a module call.
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type ProviderRef struct {
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Name string `json:"name"`
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Alias string `json:"alias,omitempty"` // Empty if the default provider configuration is referenced
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}
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type ProviderRequirement struct {
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Source string `json:"source,omitempty"`
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VersionConstraints []string `json:"version_constraints,omitempty"`
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}
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func decodeRequiredProvidersBlock(block *hcl.Block) (map[string]*ProviderRequirement, hcl.Diagnostics) {
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attrs, diags := block.Body.JustAttributes()
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reqs := make(map[string]*ProviderRequirement)
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for name, attr := range attrs {
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expr, err := attr.Expr.Value(nil)
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if err != nil {
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diags = append(diags, err...)
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}
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switch {
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case expr.Type().IsPrimitiveType():
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var version string
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valDiags := gohcl.DecodeExpression(attr.Expr, nil, &version)
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diags = append(diags, valDiags...)
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if !valDiags.HasErrors() {
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reqs[name] = &ProviderRequirement{
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VersionConstraints: []string{version},
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}
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}
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case expr.Type().IsObjectType():
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var pr ProviderRequirement
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if expr.Type().HasAttribute("version") {
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var version string
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err := gocty.FromCtyValue(expr.GetAttr("version"), &version)
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if err == nil {
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pr.VersionConstraints = append(pr.VersionConstraints, version)
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} else {
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diags = append(diags, &hcl.Diagnostic{
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Severity: hcl.DiagError,
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Summary: "Unsuitable value type",
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Detail: "Unsuitable value: string required",
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Subject: attr.Expr.Range().Ptr(),
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})
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}
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}
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if expr.Type().HasAttribute("source") {
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var source string
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err := gocty.FromCtyValue(expr.GetAttr("source"), &source)
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if err == nil {
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pr.Source = source
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} else {
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diags = append(diags, &hcl.Diagnostic{
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Severity: hcl.DiagError,
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Summary: "Unsuitable value type",
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Detail: "Unsuitable value: string required",
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Subject: attr.Expr.Range().Ptr(),
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})
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}
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}
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reqs[name] = &pr
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default:
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diags = append(diags, &hcl.Diagnostic{
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Severity: hcl.DiagError,
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Summary: "Unsuitable value type",
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Detail: "Unsuitable value: string required",
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Subject: attr.Expr.Range().Ptr(),
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})
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}
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}
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return reqs, diags
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}
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