|
| 1 | +package functions |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "fmt" |
| 6 | + "os" |
| 7 | + "path/filepath" |
| 8 | + |
| 9 | + "github.com/evanw/esbuild/pkg/api" |
| 10 | + "github.com/hashicorp/terraform-plugin-framework/function" |
| 11 | +) |
| 12 | + |
| 13 | +var _ function.Function = &K6BundleFunction{} |
| 14 | + |
| 15 | +type K6BundleFunction struct{} |
| 16 | + |
| 17 | +func NewK6BundleFunction() function.Function { |
| 18 | + return &K6BundleFunction{} |
| 19 | +} |
| 20 | + |
| 21 | +func (f *K6BundleFunction) Metadata(ctx context.Context, req function.MetadataRequest, resp *function.MetadataResponse) { |
| 22 | + resp.Name = "k6bundle" |
| 23 | +} |
| 24 | + |
| 25 | +func (f *K6BundleFunction) Definition(ctx context.Context, req function.DefinitionRequest, resp *function.DefinitionResponse) { |
| 26 | + resp.Definition = function.Definition{ |
| 27 | + Summary: "Bundle multi-file JavaScript/TypeScript k6 tests", |
| 28 | + Description: "Takes a file path to a JavaScript or TypeScript k6 test and bundles it using ESbuild. Returns the bundled JavaScript code as a string.", |
| 29 | + |
| 30 | + Parameters: []function.Parameter{ |
| 31 | + function.StringParameter{ |
| 32 | + Name: "file_path", |
| 33 | + Description: "Path to the JavaScript or TypeScript file to bundle", |
| 34 | + }, |
| 35 | + }, |
| 36 | + Return: function.StringReturn{}, |
| 37 | + } |
| 38 | +} |
| 39 | + |
| 40 | +func (f *K6BundleFunction) Run(ctx context.Context, req function.RunRequest, resp *function.RunResponse) { |
| 41 | + var filePath string |
| 42 | + |
| 43 | + resp.Error = function.ConcatFuncErrors(resp.Error, req.Arguments.Get(ctx, &filePath)) |
| 44 | + if resp.Error != nil { |
| 45 | + return |
| 46 | + } |
| 47 | + |
| 48 | + if _, err := os.Stat(filePath); os.IsNotExist(err) { |
| 49 | + resp.Error = function.ConcatFuncErrors(resp.Error, |
| 50 | + function.NewFuncError(fmt.Sprintf("File does not exist: %s", filePath))) |
| 51 | + return |
| 52 | + } |
| 53 | + |
| 54 | + absPath, err := filepath.Abs(filePath) |
| 55 | + if err != nil { |
| 56 | + resp.Error = function.ConcatFuncErrors(resp.Error, |
| 57 | + function.NewFuncError(fmt.Sprintf("Failed to get absolute path: %v", err))) |
| 58 | + return |
| 59 | + } |
| 60 | + |
| 61 | + result := api.Build(api.BuildOptions{ |
| 62 | + EntryPoints: []string{absPath}, |
| 63 | + Bundle: true, |
| 64 | + Platform: api.PlatformNode, |
| 65 | + Target: api.ES2017, |
| 66 | + Format: api.FormatCommonJS, |
| 67 | + External: []string{ |
| 68 | + "k6", |
| 69 | + "k6/*", |
| 70 | + "https", |
| 71 | + "https/*", |
| 72 | + }, |
| 73 | + Write: false, // Don't write to disk, return the content |
| 74 | + }) |
| 75 | + |
| 76 | + if len(result.Errors) > 0 { |
| 77 | + var errorMsg string |
| 78 | + for _, buildErr := range result.Errors { |
| 79 | + errorMsg += fmt.Sprintf("ESbuild error: %s\n", buildErr.Text) |
| 80 | + } |
| 81 | + resp.Error = function.ConcatFuncErrors(resp.Error, |
| 82 | + function.NewFuncError(errorMsg)) |
| 83 | + return |
| 84 | + } |
| 85 | + |
| 86 | + if len(result.OutputFiles) == 0 { |
| 87 | + resp.Error = function.ConcatFuncErrors(resp.Error, |
| 88 | + function.NewFuncError("ESbuild produced no output")) |
| 89 | + return |
| 90 | + } |
| 91 | + |
| 92 | + bundledCode := string(result.OutputFiles[0].Contents) |
| 93 | + |
| 94 | + resp.Error = function.ConcatFuncErrors(resp.Error, resp.Result.Set(ctx, bundledCode)) |
| 95 | +} |
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