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7c260f88d1
* feat: Create provisioner abstraction Creates a provisioner abstraction that takes prior art from the Terraform plugin system. It's safe to assume this code will change a lot when it becomes integrated with provisionerd. Closes #10. * Ignore generated files in diff view * Check for unstaged file changes * Install protoc-gen-go * Use proper drpc plugin version * Fix serve closed pipe * Install sqlc with curl for speed * Fix install command * Format CI action * Add linguist-generated and closed pipe test * Cleanup code from comments * Add dRPC comment * Add Terraform installer for cross-platform * Build provisioner tests on Linux only
66 lines
2.1 KiB
Go
66 lines
2.1 KiB
Go
package terraform
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import (
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"context"
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"encoding/json"
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"os"
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"github.com/coder/coder/provisionersdk/proto"
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"github.com/hashicorp/terraform-config-inspect/tfconfig"
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"golang.org/x/xerrors"
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)
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// Parse extracts Terraform variables from source-code.
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func (t *terraform) Parse(ctx context.Context, request *proto.Parse_Request) (*proto.Parse_Response, error) {
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module, diags := tfconfig.LoadModule(request.Directory)
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if diags.HasErrors() {
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return nil, xerrors.Errorf("load module: %w", diags.Err())
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}
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parameters := make([]*proto.ParameterSchema, 0, len(module.Variables))
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for _, v := range module.Variables {
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schema, err := convertVariableToParameter(v)
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if err != nil {
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return nil, xerrors.Errorf("convert variable %q: %w", v.Name, err)
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}
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parameters = append(parameters, schema)
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}
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return &proto.Parse_Response{
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ParameterSchemas: parameters,
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}, nil
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}
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// Converts a Terraform variable to a provisioner parameter.
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func convertVariableToParameter(variable *tfconfig.Variable) (*proto.ParameterSchema, error) {
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schema := &proto.ParameterSchema{
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Name: variable.Name,
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Description: variable.Description,
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Sensitive: variable.Sensitive,
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ValidationValueType: variable.Type,
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}
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if variable.Default != nil {
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defaultData, err := json.Marshal(variable.Default)
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if err != nil {
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return nil, xerrors.Errorf("parse variable %q default: %w", variable.Name, err)
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}
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schema.DefaultValue = string(defaultData)
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}
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if len(variable.Validations) > 0 && variable.Validations[0].Condition != nil {
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// Terraform can contain multiple validation blocks, but it's used sparingly
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// from what it appears.
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validation := variable.Validations[0]
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filedata, err := os.ReadFile(variable.Pos.Filename)
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if err != nil {
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return nil, xerrors.Errorf("read file %q: %w", variable.Pos.Filename, err)
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}
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schema.ValidationCondition = string(filedata[validation.Condition.Range().Start.Byte:validation.Condition.Range().End.Byte])
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schema.ValidationError = validation.ErrorMessage
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schema.ValidationTypeSystem = proto.ParameterSchema_HCL
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}
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return schema, nil
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}
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