graphql-engine/cli/util/prompt.go
Kali Vara Purushotham Santhati b75ab7233e cli: fix data-race warnings
#### Issue: https://github.com/hasura/graphql-engine-mono/issues/2179

### Problem:

1. There are few warnings when tests are executed with cli if it is built with `race` flag
It is because of a race condition between stdin in migrate_delete for the prompt and stdout for other commands.

2. The integration test of the console used to behave as follows:
    ```
     - Initially there won't be any wg.adds in wait-group so the second go-routine created in console-test (integration-test)
     - It will send the interrupt signal to the channel before the server has been started
     - So practically the server won't start
    ```
3. The read and write for consoleopts.WG has been happening in different go-routines without control or lock system(reading and writing into same memory location without lock system). So there is a chance of data-race(warning for data-race while integration tests are executed)
4. Data-race errors from `promptui` package

### Solution:

1. Use `--force` flag to avoid getting the input from the prompt in `migrate_delete_test.go`
2. Introduced two fields in server and console opts to let know other go-routines whether the server has been started or not
3. To avoid data-race above which are shared b/w go-routines to know the status of servers has been operated atomically.
4. using new package https://github.com/AlecAivazis/survey

https://github.com/hasura/graphql-engine-mono/pull/2231

GitOrigin-RevId: 387eb1be74f24dda34bb3588314b5a909adac227
2021-09-07 13:34:54 +00:00

55 lines
1.2 KiB
Go

package util
import (
"github.com/AlecAivazis/survey/v2"
)
func GetYesNoPrompt(message string) (promptResp bool, err error) {
prompt := &survey.Confirm{
Message: message,
Default: true,
}
err = survey.AskOne(prompt, &promptResp)
return promptResp, err
}
func GetSelectPrompt(message string, options []string) (selection string, err error) {
prompt := &survey.Select{
Message: message,
Options: options,
}
err = survey.AskOne(prompt, &selection)
return selection, err
}
func GetInputPrompt(message string) (input string, err error) {
prompt := &survey.Input{
Message: message,
}
err = survey.AskOne(prompt, &input)
return input, err
}
func GetInputPromptWithDefault(message string, def string) (input string, err error) {
prompt := &survey.Input{
Message: message,
Default: def,
}
err = survey.AskOne(prompt, &input)
return input, err
}
func validateDirPath(a interface{}) error {
err := FSCheckIfDirPathExists(a.(string))
return err
}
func GetFSPathPrompt(message string, def string) (input string, err error) {
prompt := &survey.Input{
Message: message,
Default: def,
}
err = survey.AskOne(prompt, &input, survey.WithValidator(validateDirPath))
return input, err
}