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Merge pull request #4 from grycap/devel
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,129 @@ | ||
| /* | ||
| Copyright (C) GRyCAP - I3M - UPV | ||
| 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. | ||
| */ | ||
|
|
||
| package cmd | ||
|
|
||
| import ( | ||
| "bytes" | ||
| "encoding/base64" | ||
| "errors" | ||
| "fmt" | ||
| "io" | ||
| "os" | ||
|
|
||
| "github.com/grycap/oscar-cli/pkg/config" | ||
| "github.com/grycap/oscar-cli/pkg/service" | ||
| "github.com/spf13/cobra" | ||
| ) | ||
|
|
||
| func serviceRunFunc(cmd *cobra.Command, args []string) error { | ||
| // Read the config file | ||
| conf, err := config.ReadConfig(configPath) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| cluster, err := getCluster(cmd, conf) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| // Parse input (only --input or --text-input are allowed) (AND one of them is required) | ||
| inputFile, _ := cmd.Flags().GetString("input") | ||
| textInput, _ := cmd.Flags().GetString("text-input") | ||
| outputFile, _ := cmd.Flags().GetString("output") | ||
| if inputFile == "" && textInput == "" { | ||
| return errors.New("you must specify \"--input\" or \"--text-input\" flag") | ||
| } | ||
| if inputFile != "" && textInput != "" { | ||
| return errors.New("you only can specify one of \"--input\" or \"--text-input\" flags") | ||
| } | ||
|
|
||
| var inputReader io.Reader = bytes.NewBufferString(textInput) | ||
|
|
||
| if inputFile != "" { | ||
| // Open the file | ||
| file, err := os.Open(inputFile) | ||
| defer file.Close() | ||
| if err != nil { | ||
| return fmt.Errorf("unable to read the file \"%s\"", inputFile) | ||
| } | ||
| // Set the file as the inputReader | ||
| inputReader = file | ||
| } | ||
|
|
||
| // Make pipe to encode file stream | ||
| reader, writer := io.Pipe() | ||
| encoder := base64.NewEncoder(base64.StdEncoding, writer) | ||
|
|
||
| // Copy the file to the encoder in a goroutine to avoid blocking the execution | ||
| go func() { | ||
| _, err := io.Copy(encoder, inputReader) | ||
| encoder.Close() | ||
| if err != nil { | ||
| writer.CloseWithError(err) | ||
| } | ||
| writer.Close() | ||
| }() | ||
|
|
||
| // Make the request | ||
| resBody, err := service.RunService(conf.Oscar[cluster], args[0], reader) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer resBody.Close() | ||
|
|
||
| // Decode the result body | ||
| decoder := base64.NewDecoder(base64.StdEncoding, resBody) | ||
|
|
||
| // Parse output (store file if --output is set) | ||
| var out io.Writer = os.Stdout | ||
|
|
||
| // Create the file if --output is set | ||
| if outputFile != "" { | ||
| outFile, err := os.Create(outputFile) | ||
| if err != nil { | ||
| return fmt.Errorf("unable to create the file \"%s\"", outputFile) | ||
| } | ||
| defer outFile.Close() | ||
| out = outFile | ||
| } | ||
|
|
||
| // Copy the decoder stream into out | ||
| _, err = io.Copy(out, decoder) | ||
| if err != nil { | ||
| return errors.New("unable to copy the response") | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func makeServiceRunCmd() *cobra.Command { | ||
| serviceRunCmd := &cobra.Command{ | ||
| Use: "run SERVICE_NAME {--input | --text-input}", | ||
| Short: "Invoke a service synchronously (a Serverless backend in the cluster is required)", | ||
| Args: cobra.ExactArgs(1), | ||
| Aliases: []string{"invoke", "r"}, | ||
| RunE: serviceRunFunc, | ||
| } | ||
|
|
||
| serviceRunCmd.Flags().StringP("cluster", "c", "", "set the cluster") | ||
| serviceRunCmd.Flags().StringP("input", "i", "", "input file for the request") | ||
| serviceRunCmd.Flags().StringP("text-input", "t", "", "text input string for the request") | ||
| serviceRunCmd.Flags().StringP("output", "o", "", "file path to store the output") | ||
|
|
||
| return serviceRunCmd | ||
| } |
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