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Addd Eject function to use from "pulumi convert" (#630)
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,155 @@ | ||
| // Copyright 2016-2018, Pulumi Corporation. | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
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| package convert | ||
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| import ( | ||
| "bytes" | ||
| "fmt" | ||
| "log" | ||
| "os" | ||
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| "github.com/hashicorp/hcl/v2" | ||
| "github.com/spf13/afero" | ||
|
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| "github.com/pulumi/pulumi-terraform-bridge/v3/pkg/tf2pulumi/il" | ||
| "github.com/pulumi/pulumi/pkg/v3/codegen/hcl2/syntax" | ||
| "github.com/pulumi/pulumi/pkg/v3/codegen/pcl" | ||
| "github.com/pulumi/pulumi/pkg/v3/codegen/schema" | ||
| "github.com/pulumi/pulumi/sdk/v3/go/common/resource/plugin" | ||
| "github.com/pulumi/pulumi/sdk/v3/go/common/util/contract" | ||
| "github.com/pulumi/pulumi/sdk/v3/go/common/workspace" | ||
| ) | ||
|
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| type EjectOptions struct { | ||
| // AllowMissingProperties, if true, allows code-gen to continue even if the input configuration does not include. | ||
| // values for required properties. | ||
| AllowMissingProperties bool | ||
| // AllowMissingProviders, if true, allows code-gen to continue even if resource providers are missing. | ||
| AllowMissingProviders bool | ||
| // AllowMissingVariables, if true, allows code-gen to continue even if the input configuration references missing | ||
| // variables. | ||
| AllowMissingVariables bool | ||
| // AllowMissingComments allows binding to succeed even if there are errors extracting comments from the source. | ||
| AllowMissingComments bool | ||
| // AnnotateNodesWithLocations is true if the generated source code should contain comments that annotate top-level | ||
| // nodes with their original source locations. | ||
| AnnotateNodesWithLocations bool | ||
| // FilterResourceNames, if true, removes the property indicated by ResourceNameProperty from all resources in the | ||
| // graph. | ||
| FilterResourceNames bool | ||
| // ResourceNameProperty sets the key of the resource name property that will be removed if FilterResourceNames is | ||
| // true. | ||
| ResourceNameProperty string | ||
| // Root, when set, overrides the default filesystem used to load the source Terraform module. | ||
| Root afero.Fs | ||
| // Optional package cache. | ||
| PackageCache *pcl.PackageCache | ||
| // Optional plugin host. | ||
| PluginHost plugin.Host | ||
| // Optional Loader. | ||
| Loader schema.Loader | ||
| // Optional source for provider schema information. | ||
| ProviderInfoSource il.ProviderInfoSource | ||
| // Optional logger for diagnostic information. | ||
| Logger *log.Logger | ||
| // SkipResourceTypechecking, if true, allows code-gen to continue even if resource inputs fail to typecheck. | ||
| SkipResourceTypechecking bool | ||
| // The target SDK version. | ||
| TargetSDKVersion string | ||
| // The version of Terraform targeteds by the input configuration. | ||
| TerraformVersion string | ||
| } | ||
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| // logf writes a formatted message to the configured logger, if any. | ||
| func (o EjectOptions) logf(format string, arguments ...interface{}) { | ||
| if o.Logger != nil { | ||
| o.Logger.Printf(format, arguments...) | ||
| } | ||
| } | ||
|
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| // Eject converts a Terraform module at the provided location into a Pulumi module. | ||
| func Eject(dir string, loader schema.ReferenceLoader) (*workspace.Project, *pcl.Program, error) { | ||
| if loader == nil { | ||
| panic("must provide a non-nil loader") | ||
| } | ||
|
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| opts := EjectOptions{ | ||
| Root: afero.NewBasePathFs(afero.NewOsFs(), dir), | ||
| Loader: loader, | ||
| } | ||
|
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| tfFiles, program, diags, err := internalEject(opts) | ||
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| d := Diagnostics{All: diags, files: tfFiles} | ||
| diagWriter := d.NewDiagnosticWriter(os.Stderr, 0, true) | ||
| if len(diags) != 0 { | ||
| err := diagWriter.WriteDiagnostics(diags) | ||
| if err != nil { | ||
| return nil, nil, err | ||
| } | ||
| } | ||
| if err != nil { | ||
| return nil, nil, fmt.Errorf("failed to load Terraform configuration, %v", err) | ||
| } | ||
|
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| project := &workspace.Project{ | ||
| Name: "tf2pulumi", | ||
| } | ||
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| return project, program, nil | ||
| } | ||
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| func internalEject(opts EjectOptions) ([]*syntax.File, *pcl.Program, hcl.Diagnostics, error) { | ||
| // Set default options where appropriate. | ||
| if opts.ProviderInfoSource == nil { | ||
| opts.ProviderInfoSource = il.PluginProviderInfoSource | ||
| } | ||
|
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| // Attempt to load the config as TF11 first. If this succeeds, use TF11 semantics unless either the config | ||
| // or the options specify otherwise. | ||
| generatedFiles, tf11Err := convertTF11(opts) | ||
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| var tf12Files []*syntax.File | ||
| var diagnostics hcl.Diagnostics | ||
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| if tf11Err == nil { | ||
| // Parse the config. | ||
| parser := syntax.NewParser() | ||
| for filename, contents := range generatedFiles { | ||
| err := parser.ParseFile(bytes.NewReader(contents), filename) | ||
| contract.Assert(err == nil) | ||
| } | ||
| tf12Files, diagnostics = parser.Files, append(diagnostics, parser.Diagnostics...) | ||
| if diagnostics.HasErrors() { | ||
| return tf12Files, nil, diagnostics, nil | ||
| } | ||
| } else { | ||
| tf12Files, diagnostics = parseTF12(opts) | ||
| if diagnostics.HasErrors() { | ||
| return tf12Files, nil, diagnostics, nil | ||
| } | ||
| } | ||
|
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| tf12Files, program, programDiags, err := convertTF12(tf12Files, opts) | ||
| if err != nil { | ||
| return nil, nil, nil, err | ||
| } | ||
|
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| diagnostics = append(diagnostics, programDiags...) | ||
| if diagnostics.HasErrors() { | ||
| return tf12Files, nil, diagnostics, nil | ||
| } | ||
| return tf12Files, program, diagnostics, nil | ||
| } |
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