Files
simples3/ROADMAP.md
T
Rohan Verma ba9ef916bc feat: add multipart upload support
"Verify the multipart upload implementation works correctly by running integration tests against MinIO and validating file integrity, parallel uploads, and error handling."

Core APIs:
- Add InitiateMultipartUpload for starting multipart uploads
- Add UploadPart for uploading individual parts (5MB-5GB)
- Add CompleteMultipartUpload to finalize uploads
- Add AbortMultipartUpload to cancel and cleanup uploads
- Add ListParts to query uploaded parts

High-Level Features:
- Add FileUploadMultipart API with automatic chunking
- Add uploadPartWithRetry with exponential backoff (3 retries default)
- Add parallel upload worker pool with configurable concurrency
- Add progress callbacks for real-time upload tracking
- Add GeneratePresignedUploadPartURL for browser-based uploads

Advanced Features:
- Automatic file chunking with configurable part sizes (5MB-5GB)
- Parallel upload worker pool with configurable concurrency
- Retry logic with exponential backoff (configurable retries)
- Real-time progress tracking with upload speed calculation
- Automatic cleanup on errors via AbortMultipartUpload
- Support for resumable uploads via ListParts
- Comprehensive input validation for all parameters
- File integrity verification across all upload modes

Testing:
- Add comprehensive integration tests (500+ lines)
- Test sequential uploads (15MB, 3 parts, ~45 MB/s)
- Test parallel uploads (20MB, 4 parts, concurrency=3)
- Test small files (3MB, single part)
- Validate abort and ListParts functionality
- Test input validation and error cases
- Verify file integrity with hash comparison
- All tests passing against MinIO

Documentation:
- Update README with multipart upload examples
- Add high-level and low-level API usage
- Document browser-based multipart uploads
- Mark multipart upload implementation as complete in ROADMAP
- Update gitignore to exclude *.bin and test-output.log

Verified against MinIO with complete test coverage.
2025-11-27 02:16:16 +05:30

213 lines
6.4 KiB
Markdown

# Project Roadmap
## Current: v0.x (Pre-Stable)
### Completed Features
- File Upload (PUT via FilePut, POST multipart via FileUpload)
- File Download (GetObject)
- File Delete (DeleteObject)
- File Details (HeadObject)
- List Objects (ListObjectsV2) with pagination
- ListAll iterator (Go 1.23+) for memory-efficient iteration
- Presigned URLs (GET/PUT with expiry)
- Upload policies for browser POST uploads
- IAM Role Support (EC2 instances with IMDSv2)
- IAM token auto-renewal
- Custom Metadata
- Custom Endpoints (MinIO, DigitalOcean Spaces, etc.)
- Content-Disposition and ACL support
- Zero dependencies (stdlib only)
## v0.10.2 - Code Organization (Refactor) ✅ COMPLETED
**Scope**: Internal restructuring, no API changes
**Size**: Medium (refactor ~1064 LOC)
**Released**: Nov 26, 2025 ([v0.10.2](https://github.com/rhnvrm/simples3/releases/tag/v0.10.2))
Split simples3.go into logical modules:
- [x] `simples3.go` - Core (S3 struct, New(), config methods: SetEndpoint/SetToken/SetClient)
- [x] `iam.go` - IAM (fetchIMDSToken, fetchIAMData, NewUsingIAM, renewIAMToken, SetIAMData)
- [x] `object.go` - Object ops (FileUpload, FilePut, FileDownload, FileDelete, FileDetails)
- [x] `list.go` - List ops (List, ListAll)
- [x] `helpers.go` - Utils (encodePath, detectFileSize, getFirstString, getURL)
- [x] Ensure all tests pass after refactor
**Why**: 1064-line file hard to navigate. Clean foundation before adding features.
---
## v0.11.0 - Bucket & Object Operations ✅ COMPLETED
**Scope**: Essential bucket management + object manipulation for CLI
**Size**: Medium (5 APIs, ~400 LOC)
**Released**: Nov 26, 2025
Bucket Operations:
- [x] ListBuckets
- [x] CreateBucket (with region support)
- [x] DeleteBucket
Object Operations:
- [x] CopyObject (within/across buckets)
- [x] DeleteObjects (batch delete up to 1000 objects)
**Why**: These operations unblock CLI development (mv, sync, batch operations). Combined release for efficiency.
**Note**: DeleteObjects has a known compatibility issue with MinIO that requires further investigation. The implementation follows AWS S3 specification correctly.
---
## v0.12.0 - Multipart Upload ✅ COMPLETED
**Scope**: Large file support with parallel uploads, progress tracking, and presigned URLs
**Size**: Large (10 APIs/features, ~800 LOC)
**Released**: Nov 27, 2025
Core APIs:
- [x] InitiateMultipartUpload
- [x] UploadPart
- [x] CompleteMultipartUpload
- [x] AbortMultipartUpload
- [x] ListParts
High-Level Features:
- [x] FileUploadMultipart (automatic chunking)
- [x] uploadPartWithRetry (exponential backoff retry logic)
- [x] uploadPartsParallel (concurrent part uploads with worker pool)
- [x] Progress callbacks (real-time upload progress)
- [x] GeneratePresignedUploadPartURL (browser-based multipart uploads)
Advanced Features Implemented:
- [x] Automatic file chunking with configurable part sizes (5MB-5GB)
- [x] Parallel upload worker pool (configurable concurrency)
- [x] Retry logic with exponential backoff (3 retries default, configurable)
- [x] Real-time progress tracking with upload speed calculation
- [x] Automatic cleanup on errors (AbortMultipartUpload)
- [x] Support for resumable uploads via ListParts
- [x] Comprehensive input validation (part size, part numbers, etc.)
- [x] Integration tests with MinIO (500+ LOC)
- [x] File integrity verification across all upload modes
**Why**: Critical for large files (>100MB). Enables resumable uploads, parallel transfers, and better performance.
---
## v0.13.0 - Server-Side Encryption
**Scope**: Security basics
**Size**: Small (~150 LOC)
- [ ] SSE-S3 support (AES256)
- [ ] SSE-KMS support (key ARN)
- [ ] Encryption headers in Put/Upload/Copy
**Why**: Security is table stakes. Simple to add to existing operations.
---
## v0.14.0 - Object Tagging
**Scope**: Metadata management
**Size**: Small (4 APIs, ~200 LOC)
- [ ] PutObjectTagging
- [ ] GetObjectTagging
- [ ] DeleteObjectTagging
- [ ] Tagging support in Put/Upload/Copy
**Why**: Common requirement for organization/billing. Simple XML operations.
---
## v0.15.0 - Object Versioning
**Scope**: Version control
**Size**: Medium (5 APIs, ~300 LOC)
- [ ] PutBucketVersioning
- [ ] GetBucketVersioning
- [ ] ListObjectVersions
- [ ] GetObjectVersion
- [ ] DeleteObjectVersion (with version ID)
**Why**: Important for data safety. More complex due to version handling.
---
## v0.16.0 - ACLs & Lifecycle
**Scope**: Advanced management
**Size**: Medium (9 APIs, ~500 LOC)
ACLs:
- [ ] PutObjectAcl
- [ ] GetObjectAcl
- [ ] PutBucketAcl
- [ ] GetBucketAcl
Lifecycle:
- [ ] PutBucketLifecycle
- [ ] GetBucketLifecycle
- [ ] DeleteBucketLifecycle
**Why**: Grouped advanced features. Completes library API surface.
---
## v0.17.0 - CLI Complete
**Scope**: Full-featured CLI with all library features
**Size**: Large (~2000 LOC)
CLI (`cmd/simples3/`):
- [ ] Project structure (cobra or custom parser)
- [ ] S3 URI parsing (`s3://bucket/key`)
- [ ] Config (env vars: AWS_*, flags: --region/--profile)
- [ ] AWS credentials file support (~/.aws/credentials)
- [ ] Basic commands:
- [ ] ls (list buckets/objects)
- [ ] cp (upload/download, with multipart for large files)
- [ ] rm (delete single/batch)
- [ ] mb (make bucket)
- [ ] rb (remove bucket)
- [ ] mv (move/rename using copy+delete)
- [ ] presign (generate URL)
- [ ] sync (local ↔ S3 with diff algorithm)
- [ ] Flags:
- [ ] --recursive (cp/rm)
- [ ] --sse/--sse-kms-key-id (encryption)
- [ ] --tags (tagging)
- [ ] --version-id (versioning)
- [ ] --acl (canned ACLs)
- [ ] --delete (sync)
- [ ] --exclude/--include (patterns)
- [ ] --json (output mode)
- [ ] --dry-run
- [ ] Features:
- [ ] Progress indicators
- [ ] Parallel transfers
- [ ] Better error messages
- [ ] Subcommands:
- [ ] acl get/set
- [ ] lifecycle get/set/delete
- [ ] tags get/set/delete
**Why**: Library complete. Build full-featured CLI supporting all operations.
---
## v1.0.0 - Stable Release
**Focus**: Production-ready stability
**Size**: Documentation, tests, polish
Library:
- [ ] All tests passing with 80%+ coverage
- [ ] API documentation complete
- [ ] Performance benchmarks
- [ ] Security audit of signing/crypto code
CLI:
- [ ] CLI tests with real/mocked S3
- [ ] CLI documentation (man pages, --help)
- [ ] Installation guides (brew, apt, etc.)
- [ ] Shell completions (bash, zsh, fish)
Release:
- [ ] CHANGELOG.md complete
- [ ] Migration guide from v0.x
- [ ] Examples for all features
- [ ] API stability guarantee
**Why**: v1.0 = stability commitment. Library + CLI production-ready.