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c98f352dc8
If a module has multiple terraform.required_version constraints, any
failures would point at the last constraint in the error diagnostics. If
an earlier constraint was the actual problem, this leads to confusing
errors like this:
Error: Unsupported Terraform Core version
on main.tf line 6, in terraform:
6: required_version = ">= 0.13.0"
This configuration does not support Terraform version 0.13.0.
The error was due to storing the declaration range of the constraint as
a pointer to the contents of a loop variable, which was later
overwritten in later iterations of the loop. Instead we now use HCL's
handy Ptr() method to create a direct pointer to the range struct.
63 lines
2.1 KiB
Go
63 lines
2.1 KiB
Go
package terraform
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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/terraform/tfdiags"
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"github.com/hashicorp/terraform/configs"
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tfversion "github.com/hashicorp/terraform/version"
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)
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// CheckCoreVersionRequirements visits each of the modules in the given
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// configuration tree and verifies that any given Core version constraints
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// match with the version of Terraform Core that is being used.
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//
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// The returned diagnostics will contain errors if any constraints do not match.
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// The returned diagnostics might also return warnings, which should be
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// displayed to the user.
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func CheckCoreVersionRequirements(config *configs.Config) tfdiags.Diagnostics {
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if config == nil {
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return nil
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}
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var diags tfdiags.Diagnostics
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module := config.Module
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for _, constraint := range module.CoreVersionConstraints {
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if !constraint.Required.Check(tfversion.SemVer) {
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switch {
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case len(config.Path) == 0:
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diags = diags.Append(&hcl.Diagnostic{
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Severity: hcl.DiagError,
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Summary: "Unsupported Terraform Core version",
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Detail: fmt.Sprintf(
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"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.",
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tfversion.String(),
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),
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Subject: constraint.DeclRange.Ptr(),
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})
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default:
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diags = diags.Append(&hcl.Diagnostic{
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Severity: hcl.DiagError,
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Summary: "Unsupported Terraform Core version",
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Detail: fmt.Sprintf(
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"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.",
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config.Path, config.SourceAddr, tfversion.String(),
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),
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Subject: constraint.DeclRange.Ptr(),
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})
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}
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}
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}
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for _, c := range config.Children {
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childDiags := CheckCoreVersionRequirements(c)
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diags = diags.Append(childDiags)
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}
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return diags
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}
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