opentofu/terraform/version_required.go
Martin Atkins 39e609d5fd vendor: switch to HCL 2.0 in the HCL repository
Previously we were using the experimental HCL 2 repository, but now we'll
shift over to the v2 import path within the main HCL repository as part of
actually releasing HCL 2.0 as stable.

This is a mechanical search/replace to the new import paths. It also
switches to the v2.0.0 release of HCL, which includes some new code that
Terraform didn't previously have but should not change any behavior that
matters for Terraform's purposes.

For the moment the experimental HCL2 repository is still an indirect
dependency via terraform-config-inspect, so it remains in our go.sum and
vendor directories for the moment. Because terraform-config-inspect uses
a much smaller subset of the HCL2 functionality, this does still manage
to prune the vendor directory a little. A subsequent release of
terraform-config-inspect should allow us to completely remove that old
repository in a future commit.
2019-10-02 15:10:21 -07:00

63 lines
2.1 KiB
Go

package terraform
import (
"fmt"
"github.com/hashicorp/hcl/v2"
"github.com/hashicorp/terraform/tfdiags"
"github.com/hashicorp/terraform/configs"
tfversion "github.com/hashicorp/terraform/version"
)
// CheckCoreVersionRequirements visits each of the modules in the given
// configuration tree and verifies that any given Core version constraints
// match with the version of Terraform Core that is being used.
//
// The returned diagnostics will contain errors if any constraints do not match.
// The returned diagnostics might also return warnings, which should be
// displayed to the user.
func CheckCoreVersionRequirements(config *configs.Config) tfdiags.Diagnostics {
if config == nil {
return nil
}
var diags tfdiags.Diagnostics
module := config.Module
for _, constraint := range module.CoreVersionConstraints {
if !constraint.Required.Check(tfversion.SemVer) {
switch {
case len(config.Path) == 0:
diags = diags.Append(&hcl.Diagnostic{
Severity: hcl.DiagError,
Summary: "Unsupported Terraform Core version",
Detail: fmt.Sprintf(
"This configuration does not support Terraform version %s. To proceed, either choose another supported Terraform version or update this version constraint. Version constraints are normally set for good reason, so updating the constraint may lead to other errors or unexpected behavior.",
tfversion.String(),
),
Subject: &constraint.DeclRange,
})
default:
diags = diags.Append(&hcl.Diagnostic{
Severity: hcl.DiagError,
Summary: "Unsupported Terraform Core version",
Detail: fmt.Sprintf(
"Module %s (from %s) does not support Terraform version %s. To proceed, either choose another supported Terraform version or update this version constraint. Version constraints are normally set for good reason, so updating the constraint may lead to other errors or unexpected behavior.",
config.Path, config.SourceAddr, tfversion.String(),
),
Subject: &constraint.DeclRange,
})
}
}
}
for _, c := range config.Children {
childDiags := CheckCoreVersionRequirements(c)
diags = diags.Append(childDiags)
}
return diags
}