opentofu/configs/provider.go
Martin Atkins 4e5efa498a configs: Parser.LoadConfigDir
This method wraps LoadConfigFile to load all of the .tf and .tf.json files
in a given directory and then bundle them together into a Module object.

This function also deals with the distinction between primary and override
files, first appending together the primary files in lexicographic order
by filename, and then merging in override files in the same order.

The merging behavior is not fully implemented as of this commit, and so
will be expanded in future commits.
2018-02-15 15:56:37 -08:00

101 lines
2.5 KiB
Go

package configs
import (
"fmt"
"github.com/hashicorp/hcl2/gohcl"
"github.com/hashicorp/hcl2/hcl"
"github.com/hashicorp/hcl2/hcl/hclsyntax"
)
// Provider represents a "provider" block in a module or file. A provider
// block is a provider configuration, and there can be zero or more
// configurations for each actual provider.
type Provider struct {
Name string
NameRange hcl.Range
Alias string
AliasRange *hcl.Range // nil if no alias set
Version VersionConstraint
Config hcl.Body
DeclRange hcl.Range
}
func decodeProviderBlock(block *hcl.Block) (*Provider, hcl.Diagnostics) {
content, config, diags := block.Body.PartialContent(providerBlockSchema)
provider := &Provider{
Name: block.Labels[0],
NameRange: block.LabelRanges[0],
Config: config,
DeclRange: block.DefRange,
}
if attr, exists := content.Attributes["alias"]; exists {
valDiags := gohcl.DecodeExpression(attr.Expr, nil, &provider.Alias)
diags = append(diags, valDiags...)
provider.AliasRange = attr.Expr.Range().Ptr()
if !hclsyntax.ValidIdentifier(provider.Alias) {
diags = append(diags, &hcl.Diagnostic{
Severity: hcl.DiagError,
Summary: "Invalid provider configuration alias",
Detail: fmt.Sprintf("An alias must be a valid name. %s", badIdentifierDetail),
})
}
}
if attr, exists := content.Attributes["version"]; exists {
var versionDiags hcl.Diagnostics
provider.Version, versionDiags = decodeVersionConstraint(attr)
diags = append(diags, versionDiags...)
}
return provider, diags
}
func (p *Provider) moduleUniqueKey() string {
if p.Alias != "" {
return fmt.Sprintf("%s.%s", p.Name, p.Alias)
}
return p.Name
}
// ProviderRequirement represents a declaration of a dependency on a particular
// provider version without actually configuring that provider. This is used in
// child modules that expect a provider to be passed in from their parent.
type ProviderRequirement struct {
Name string
Requirement VersionConstraint
}
func decodeRequiredProvidersBlock(block *hcl.Block) ([]*ProviderRequirement, hcl.Diagnostics) {
attrs, diags := block.Body.JustAttributes()
var reqs []*ProviderRequirement
for name, attr := range attrs {
req, reqDiags := decodeVersionConstraint(attr)
diags = append(diags, reqDiags...)
if !diags.HasErrors() {
reqs = append(reqs, &ProviderRequirement{
Name: name,
Requirement: req,
})
}
}
return reqs, diags
}
var providerBlockSchema = &hcl.BodySchema{
Attributes: []hcl.AttributeSchema{
{
Name: "alias",
},
{
Name: "version",
},
},
}