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package application |
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import ( |
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"context" |
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"fmt" |
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"log" |
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"github.com/muonsoft/openapi-mock/internal/application/config" |
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"github.com/muonsoft/openapi-mock/internal/application/di" |
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"github.com/spf13/cobra" |
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) |
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const descriptionTemplate = `OpenAPI Mock tool with random data generation. |
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Version %s. Build at %s. |
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See documentation at https://github.com/muonsoft/openapi-mock/blob/master/docs/usage_guide.md.` |
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type Options struct { |
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SpecificationURL string |
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Version string |
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BuildTime string |
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ConfigFilename string |
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Arguments []string |
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DryRun bool |
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overrideArguments bool |
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} |
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type OptionFunc func(options *Options) |
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func Version(version string) OptionFunc { |
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return func(options *Options) { |
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options.Version = version |
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} |
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} |
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func BuildTime(buildTime string) OptionFunc { |
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return func(options *Options) { |
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options.BuildTime = buildTime |
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} |
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} |
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func Arguments(args []string) OptionFunc { |
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return func(options *Options) { |
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options.Arguments = args |
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options.overrideArguments = true |
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} |
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} |
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func Execute(options ...OptionFunc) error { |
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opts := &Options{} |
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for _, setOption := range options { |
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setOption(opts) |
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} |
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mainCommand := newMainCommand(opts) |
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if opts.overrideArguments { |
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mainCommand.SetArgs(opts.Arguments) |
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} |
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return mainCommand.Execute() |
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} |
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func newMainCommand(opts *Options) *cobra.Command { |
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mainCommand := &cobra.Command{ |
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Use: "openapi-mock", |
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Short: "OpenAPI Mock tool with random data generation", |
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Long: fmt.Sprintf(descriptionTemplate, opts.Version, opts.BuildTime), |
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} |
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mainCommand.PersistentFlags().StringVarP( |
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&opts.ConfigFilename, |
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"configuration", |
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"c", |
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"", |
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`Configuration filename in JSON/YAML format. By default configuration is loaded from 'openapi-mock.yaml', 'openapi-mock.yml' or 'openapi-mock.json'.`, |
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) |
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mainCommand.PersistentFlags().StringVarP( |
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&opts.SpecificationURL, |
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"specification-url", |
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"u", |
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"", |
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`URL or path to file with OpenAPI v3 specification. Overrides specification defined in configuration file or environment variable.`, |
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) |
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mainCommand.PersistentFlags().BoolVar(&opts.DryRun, "dry-run", false, `Dry run will not start a server`) |
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mainCommand.AddCommand( |
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newVersionCommand(opts), |
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newServeCommand(opts), |
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newValidateCommand(opts), |
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) |
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return mainCommand |
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} |
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func newVersionCommand(options *Options) *cobra.Command { |
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return &cobra.Command{ |
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Use: "version", |
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Short: "Prints application version", |
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Run: func(cmd *cobra.Command, args []string) { |
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fmt.Printf("OpenAPI Mock tool. Version %s built at %s.\n", options.Version, options.BuildTime) |
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}, |
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} |
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} |
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func newServeCommand(options *Options) *cobra.Command { |
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return &cobra.Command{ |
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Use: "serve", |
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Short: "Starts an HTTP server for generating mock responses by OpenAPI specification", |
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SilenceUsage: true, |
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SilenceErrors: true, |
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RunE: func(cmd *cobra.Command, args []string) error { |
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configuration, err := config.Load(options.ConfigFilename) |
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if err != nil { |
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return err |
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} |
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configuration.DryRun = options.DryRun |
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if options.SpecificationURL != "" { |
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configuration.SpecificationURL = options.SpecificationURL |
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} |
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factory := di.NewFactory(configuration) |
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server, err := factory.CreateHTTPServer() |
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if err != nil { |
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return err |
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} |
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if !options.DryRun { |
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err = server.Run() |
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if err != nil { |
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return err |
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} |
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} |
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return nil |
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}, |
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} |
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} |
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func newValidateCommand(options *Options) *cobra.Command { |
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return &cobra.Command{ |
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Use: "validate", |
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Short: "Validates an OpenAPI specification", |
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SilenceUsage: true, |
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SilenceErrors: true, |
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RunE: func(cmd *cobra.Command, args []string) error { |
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configuration, err := config.Load(options.ConfigFilename) |
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if err != nil { |
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return err |
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} |
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if options.SpecificationURL != "" { |
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configuration.SpecificationURL = options.SpecificationURL |
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} |
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factory := di.NewFactory(configuration) |
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loader := factory.CreateSpecificationLoader() |
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specification, err := loader.LoadFromURI(configuration.SpecificationURL) |
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if err != nil { |
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return err |
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} |
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err = specification.Validate(context.Background()) |
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if err != nil { |
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return fmt.Errorf( |
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"validation of OpenAPI specification '%s' failed: %w", |
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configuration.SpecificationURL, |
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err, |
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) |
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} |
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if !options.DryRun { |
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log.Printf("OpenAPI specification '%s' is valid", configuration.SpecificationURL) |
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} |
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return nil |
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}, |
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} |
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} |
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muonsoft /
openapi-mock
