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Merge pull request #36 from nao1215/feat/delete-tui
Add text user interface for deleting s3 bucket
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
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@@ -26,3 +26,4 @@ localstack | |
| /spare | ||
| /cfn | ||
| .envrc | ||
| /t-rec* | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,113 @@ | ||
| package s3hub | ||
|
|
||
| import ( | ||
| "context" | ||
| "crypto/rand" | ||
| "fmt" | ||
| "math/big" | ||
| "time" | ||
|
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||
| tea "github.com/charmbracelet/bubbletea" | ||
| "github.com/nao1215/rainbow/app/di" | ||
| "github.com/nao1215/rainbow/app/domain/model" | ||
| "github.com/nao1215/rainbow/app/usecase" | ||
| "github.com/nao1215/rainbow/ui" | ||
| "golang.org/x/sync/errgroup" | ||
| "golang.org/x/sync/semaphore" | ||
| ) | ||
|
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| // fetchS3BucketMsg is the message that is sent when the user wants to fetch the list of the S3 buckets. | ||
| type fetchS3BucketMsg struct { | ||
| buckets model.BucketSets | ||
| } | ||
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| // fetchS3BucketListCmd fetches the list of the S3 buckets. | ||
| func fetchS3BucketListCmd(ctx context.Context, app *di.S3App) tea.Cmd { | ||
| return tea.Cmd(func() tea.Msg { | ||
| output, err := app.S3BucketLister.ListS3Buckets(ctx, &usecase.S3BucketListerInput{}) | ||
| if err != nil { | ||
| return ui.ErrMsg(err) | ||
| } | ||
| return fetchS3BucketMsg{ | ||
| buckets: output.Buckets, | ||
| } | ||
| }) | ||
| } | ||
|
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| type deleteS3BucketMsg struct { | ||
| deletedBucket model.Bucket | ||
| } | ||
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| // deleteS3BucketCmd deletes the S3 bucket. | ||
| // TODO: refactor | ||
| func deleteS3BucketCmd(ctx context.Context, app *di.S3App, bucket model.Bucket) tea.Cmd { | ||
| d, err := rand.Int(rand.Reader, big.NewInt(500)) | ||
| if err != nil { | ||
| return func() tea.Msg { | ||
| return ui.ErrMsg(fmt.Errorf("failed to start deleting s3 bucket: %w", err)) | ||
| } | ||
| } | ||
| delay := time.Millisecond * time.Duration(d.Int64()) | ||
|
|
||
| return tea.Tick(delay, func(t time.Time) tea.Msg { | ||
| output, err := app.S3ObjectsLister.ListS3Objects(ctx, &usecase.S3ObjectsListerInput{ | ||
| Bucket: bucket, | ||
| }) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
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| if len(output.Objects) != 0 { | ||
| eg, ctx := errgroup.WithContext(ctx) | ||
| sem := semaphore.NewWeighted(model.MaxS3DeleteObjectsParallelsCount) | ||
| chunks := divideIntoChunks(output.Objects, model.S3DeleteObjectChunksSize) | ||
|
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| for _, chunk := range chunks { | ||
| chunk := chunk // Create a new variable to avoid concurrency issues | ||
| // Acquire semaphore to control the number of concurrent goroutines | ||
| if err := sem.Acquire(ctx, 1); err != nil { | ||
| return err | ||
| } | ||
|
|
||
| eg.Go(func() error { | ||
| defer sem.Release(1) | ||
| if _, err := app.S3ObjectsDeleter.DeleteS3Objects(ctx, &usecase.S3ObjectsDeleterInput{ | ||
| Bucket: bucket, | ||
| S3ObjectSets: chunk, | ||
| }); err != nil { | ||
| return err | ||
| } | ||
| return nil | ||
| }) | ||
| } | ||
|
|
||
| if err := eg.Wait(); err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
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| _, err = app.S3BucketDeleter.DeleteS3Bucket(ctx, &usecase.S3BucketDeleterInput{ | ||
| Bucket: bucket, | ||
| }) | ||
| if err != nil { | ||
| return ui.ErrMsg(err) | ||
| } | ||
| return deleteS3BucketMsg{ | ||
| deletedBucket: bucket, | ||
| } | ||
| }) | ||
| } | ||
|
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| // divideIntoChunks divides a slice into chunks of the specified size. | ||
| func divideIntoChunks(slice []model.S3ObjectIdentifier, chunkSize int) [][]model.S3ObjectIdentifier { | ||
| var chunks [][]model.S3ObjectIdentifier | ||
|
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| for i := 0; i < len(slice); i += chunkSize { | ||
| end := i + chunkSize | ||
| if end > len(slice) { | ||
| end = len(slice) | ||
| } | ||
| chunks = append(chunks, slice[i:end]) | ||
| } | ||
| return chunks | ||
| } |
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