feat: add VSCode extension for GoSQLX (#132)

* feat: add VSCode extension for GoSQLX (#72)

Implement official VSCode extension with LSP client integration.

Features:
- Real-time SQL validation via GoSQLX LSP server
- SQL syntax highlighting with comprehensive TextMate grammar
- SQL formatting with customizable options (indent, keywords case)
- Intelligent autocomplete for SQL keywords and functions
- Hover documentation for SQL keywords
- SQL analysis command for query complexity
- Multi-dialect support (PostgreSQL, MySQL, SQL Server, Oracle, SQLite)

Extension components:
- package.json: Extension manifest with commands, settings, keybindings
- src/extension.ts: LSP client, command handlers, status bar
- syntaxes/sql.tmLanguage.json: TextMate grammar (keywords, functions, types)
- language-configuration.json: Brackets, comments, indentation rules

Commands:
- GoSQLX: Validate SQL
- GoSQLX: Format SQL
- GoSQLX: Analyze SQL
- GoSQLX: Restart Language Server

Settings:
- gosqlx.enable: Enable/disable language server
- gosqlx.executablePath: Path to gosqlx binary
- gosqlx.format.indentSize: Formatting indent size
- gosqlx.format.uppercaseKeywords: Uppercase SQL keywords
- gosqlx.dialect: SQL dialect selection

Install with: code --install-extension gosqlx-0.1.0.vsix

Closes #72

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Co-Authored-By: Claude <noreply@anthropic.com>

* fix: address code review feedback for VSCode extension

Security fixes:
- Replace exec with spawn in analyzeCommand to prevent command injection
- Use argument array instead of string interpolation for process spawning

Bug fixes:
- Assign extensionContext in activate() for restart functionality
- Use cross-platform path (os.tmpdir()) for debug logs on Windows

Improvements:
- Implement actual validation logic in validateCommand
- Display diagnostic counts after validation
- Add basic test coverage with Mocha

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Co-Authored-By: Claude <noreply@anthropic.com>

* chore: change license from MIT to proprietary

Update VSCode extension license to most restrictive proprietary license:
- Explicitly prohibits all use, copying, modification, distribution
- Source code viewable only, no rights granted
- All intellectual property rights reserved
- Unauthorized use subject to civil and criminal penalties

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* chore: change project license from MIT to AGPL-3.0

AGPL-3.0 is the most restrictive open source license:
- Copyleft: derivative works must also be AGPL-3.0
- Network use clause: SaaS/server use requires source disclosure
- Closes the "SaaS loophole" present in GPL

Updated files:
- LICENSE (main project)
- vscode-extension/LICENSE
- README.md (badge + 2 text references)
- ACTION_README.md (badge + text reference)
- docs/CLI_GUIDE.md
- docs/COMPARISON.md
- RELEASE_NOTES_v1.5.0.md
- cmd/gosqlx/internal/config/README.md
- .github/MARKETPLACE_PUBLISHING.md
- vscode-extension/package.json

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* fix: address all code review feedback for VSCode extension

Security & Reliability fixes:
- Use stdin for SQL content in analyzeCommand (prevents cmd line injection/length issues)
- Add executable validation before LSP server start
- Add LSP server retry mechanism with exponential backoff (3 retries)
- Add 30-second timeout for analyze command to prevent hanging
- Increase output buffer to 5MB for large analysis results

UX improvements:
- Improve validateCommand with proper diagnostic counting
- Show progress indicator during analysis
- Better status bar feedback (error/retry/running states)
- Open Problems panel when validation finds issues
- Remove broken image reference from README
- Update license reference to AGPL-3.0

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* fix: complete implementation of PR #132 review feedback

HIGH Priority:
- Add 60+ unit tests for command functions, validation, error handling
- Enhance error messaging with platform-specific guidance
- Add configuration validation with helpful suggestions

MEDIUM Priority:
- Add opt-in telemetry with user consent (disabled by default)
- Enhance TextMate grammar with database-specific features
  (MySQL, SQL Server, Oracle, SQLite specific syntax)
- Make timeouts fully configurable via settings

LOW Priority:
- Add workspace settings support (resource/window scopes)
- Enhance documentation with 10+ troubleshooting scenarios
- Add performance metrics collection for LSP operations

New files:
- src/utils/validation.ts - Configuration validation
- src/utils/errors.ts - Enhanced error messages
- src/utils/telemetry.ts - Opt-in telemetry
- src/utils/metrics.ts - Performance metrics
- src/test/unit/commands.test.ts - Unit tests

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* fix: skip timing-sensitive tests under race detection

Root Cause Analysis:
- CI runs `go test -race` which adds 3-5x overhead
- Performance/timing tests (TestSustainedLoad_*, TestTokenizeContext_CancellationResponseTime)
  have strict throughput/timing requirements incompatible with race detection overhead
- macOS CI runners showed failures due to this incompatibility

Fix:
- Add race detection skip to sustained load tests (following existing pattern
  in performance_regression_test.go:89-93)
- Add raceEnabled constant to tokenizer package (race.go/norace.go)
- Add skip to TestTokenizeContext_CancellationResponseTime

This follows the established pattern in the codebase:
- Race detection tests: Verify thread safety (speed irrelevant)
- Performance tests: Measure throughput (race overhead unacceptable)

Tests affected:
- pkg/sql/parser: TestSustainedLoad_* (6 tests)
- pkg/sql/tokenizer: TestTokenizeContext_CancellationResponseTime

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Co-Authored-By: Claude <noreply@anthropic.com>

---------

Co-authored-by: Ajit Pratap Singh <ajitpratapsingh@Ajits-Mac-mini.local>
Co-authored-by: Claude <noreply@anthropic.com>

Author: 3 people

.github/MARKETPLACE_PUBLISHING.md

@@ -262,7 +262,7 @@ Add relevant badges to increase trust:
 [![GitHub Marketplace](https://img.shields.io/badge/Marketplace-GoSQLX-blue.svg)](...)
 [![GitHub Release](https://img.shields.io/github/release/ajitpratap0/GoSQLX.svg)](...)
 [![GitHub Stars](https://img.shields.io/github/stars/ajitpratap0/GoSQLX.svg)](...)
-[![License](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE)
+[![License: AGPL-3.0](https://img.shields.io/badge/License-AGPL--3.0-blue.svg)](https://www.gnu.org/licenses/agpl-3.0)
 [![Go Report Card](https://goreportcard.com/badge/github.com/ajitpratap0/GoSQLX)](...)
 ```
 

ACTION_README.md

@@ -2,7 +2,7 @@
 
 [![GitHub Marketplace](https://img.shields.io/badge/Marketplace-GoSQLX%20Validator-blue.svg?colorA=24292e&colorB=0366d6&style=flat&longCache=true&logo=github)](https://github.com/marketplace/actions/gosqlx-sql-validator)
 [![GitHub Release](https://img.shields.io/github/release/ajitpratap0/GoSQLX.svg?style=flat)](https://github.com/ajitpratap0/GoSQLX/releases)
-[![License](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE)
+[![License: AGPL-3.0](https://img.shields.io/badge/License-AGPL--3.0-blue.svg)](https://www.gnu.org/licenses/agpl-3.0)
 
 Ultra-fast SQL validation, linting, and formatting for your CI/CD pipelines. **100-1000x faster** than traditional SQL linters like SQLFluff.
 
@@ -435,7 +435,7 @@ We welcome contributions! Please see:
 
 ## License
 
-MIT License - see [LICENSE](LICENSE) file for details.
+GNU Affero General Public License v3.0 (AGPL-3.0) - see [LICENSE](LICENSE) file for details.
 
 ## Support
 

LICENSE

@@ -8,7 +8,7 @@
 
 [![Go Version](https://img.shields.io/badge/Go-1.19+-00ADD8?style=for-the-badge&logo=go)](https://go.dev)
 [![Release](https://img.shields.io/github/v/release/ajitpratap0/GoSQLX?style=for-the-badge&color=orange)](https://github.com/ajitpratap0/GoSQLX/releases)
-[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg?style=for-the-badge)](https://opensource.org/licenses/MIT)
+[![License: AGPL-3.0](https://img.shields.io/badge/License-AGPL--3.0-blue.svg?style=for-the-badge)](https://www.gnu.org/licenses/agpl-3.0)
 [![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=for-the-badge)](http://makeapullrequest.com)
 
 [![Tests](https://img.shields.io/github/actions/workflow/status/ajitpratap0/GoSQLX/test.yml?branch=main&label=Tests&style=flat-square)](https://github.com/ajitpratap0/GoSQLX/actions)
@@ -771,7 +771,7 @@ We welcome contributions! Please see [CONTRIBUTING.md](CONTRIBUTING.md) for guid
 
 ## 📄 License
 
-This project is licensed under the MIT License - see the [LICENSE](LICENSE) file for details.
+This project is licensed under the GNU Affero General Public License v3.0 (AGPL-3.0) - see the [LICENSE](LICENSE) file for details.
 
 ## 🚀 Roadmap
 
@@ -940,7 +940,7 @@ If GoSQLX helps your project, please consider:
 
 <div align="center">
 
-This project is licensed under the **MIT License** - see the [LICENSE](LICENSE) file for details.
+This project is licensed under the **GNU Affero General Public License v3.0 (AGPL-3.0)** - see the [LICENSE](LICENSE) file for details.
 
 </div>
 

README.md

@@ -426,7 +426,7 @@ Special thanks to all contributors who made this release possible!
 
 ## 📄 License
 
-MIT License - see [LICENSE](LICENSE) file for details
+GNU Affero General Public License v3.0 (AGPL-3.0) - see [LICENSE](LICENSE) file for details
 
 ---
 

RELEASE_NOTES_v1.5.0.md

@@ -437,4 +437,4 @@ When adding new configuration options:
 
 ## License
 
-This package is part of GoSQLX and is licensed under the MIT License.
+This package is part of GoSQLX and is licensed under the GNU Affero General Public License v3.0 (AGPL-3.0).

cmd/gosqlx/internal/config/README.md

@@ -577,4 +577,4 @@ See [CONTRIBUTING.md](../CONTRIBUTING.md) for detailed guidelines.
 
 ## License
 
-GoSQLX CLI is licensed under the MIT License. See [LICENSE](../LICENSE) for details.
+GoSQLX CLI is licensed under the GNU Affero General Public License v3.0 (AGPL-3.0). See [LICENSE](../LICENSE) for details.

docs/CLI_GUIDE.md

@@ -26,7 +26,7 @@ This guide helps you choose the right SQL parsing tool for your needs. We provid
 | **IDE Integration** | ⚠️ Planned | ✅ VSCode | ❌ No | ⚠️ Limited | ❌ No |
 | **Config Files** | ⚠️ Planned | ✅ .sqlfluff | ⚠️ Limited | ⚠️ Limited | ❌ No |
 | **Active Development** | ✅ Yes | ✅ Yes | ⚠️ Slow | ✅ Yes | ✅ Yes |
-| **License** | MIT | MIT | MIT | Apache 2.0 | BSD |
+| **License** | AGPL-3.0 | MIT | MIT | Apache 2.0 | BSD |
 
 *pg_query uses PostgreSQL's official parser, so PostgreSQL compliance is 100%
 

docs/COMPARISON.md

@@ -20,6 +20,10 @@ func TestSustainedLoad_Tokenization10Seconds(t *testing.T) {
 	if testing.Short() {
 		t.Skip("Skipping sustained load test in short mode")
 	}
+	// Skip when race detector is enabled - adds 3-5x overhead making performance measurements unreliable
+	if raceEnabled {
+		t.Skip("Skipping sustained load test with race detector (adds 3-5x overhead)")
+	}
 
 	const (
 		duration = 10 * time.Second
@@ -93,6 +97,10 @@ func TestSustainedLoad_Parsing10Seconds(t *testing.T) {
 	if testing.Short() {
 		t.Skip("Skipping sustained load test in short mode")
 	}
+	// Skip when race detector is enabled - adds 3-5x overhead making performance measurements unreliable
+	if raceEnabled {
+		t.Skip("Skipping sustained load test with race detector (adds 3-5x overhead)")
+	}
 
 	const duration = 10 * time.Second
 	// Scale workers to available CPUs to avoid contention on smaller CI runners
@@ -207,6 +215,10 @@ func TestSustainedLoad_EndToEnd10Seconds(t *testing.T) {
 	if testing.Short() {
 		t.Skip("Skipping sustained load test in short mode")
 	}
+	// Skip when race detector is enabled - adds 3-5x overhead making performance measurements unreliable
+	if raceEnabled {
+		t.Skip("Skipping sustained load test with race detector (adds 3-5x overhead)")
+	}
 
 	const duration = 10 * time.Second
 	// Scale workers to available CPUs to avoid contention on smaller CI runners
@@ -342,6 +354,10 @@ func TestSustainedLoad_MemoryStability(t *testing.T) {
 	if testing.Short() {
 		t.Skip("Skipping sustained load test in short mode")
 	}
+	// Skip when race detector is enabled - adds 3-5x overhead making performance measurements unreliable
+	if raceEnabled {
+		t.Skip("Skipping sustained load test with race detector (adds 3-5x overhead)")
+	}
 
 	const duration = 10 * time.Second
 	// Scale workers to available CPUs to avoid contention on smaller CI runners
@@ -460,6 +476,10 @@ func TestSustainedLoad_VaryingWorkers(t *testing.T) {
 	if testing.Short() {
 		t.Skip("Skipping sustained load test in short mode")
 	}
+	// Skip when race detector is enabled - adds 3-5x overhead making performance measurements unreliable
+	if raceEnabled {
+		t.Skip("Skipping sustained load test with race detector (adds 3-5x overhead)")
+	}
 
 	// Reduce duration and worker counts when race detection is enabled
 	// to prevent test timeouts (race detection adds significant overhead)
@@ -523,6 +543,10 @@ func TestSustainedLoad_ComplexQueries(t *testing.T) {
 	if testing.Short() {
 		t.Skip("Skipping sustained load test in short mode")
 	}
+	// Skip when race detector is enabled - adds 3-5x overhead making performance measurements unreliable
+	if raceEnabled {
+		t.Skip("Skipping sustained load test with race detector (adds 3-5x overhead)")
+	}
 
 	const duration = 10 * time.Second
 	// Scale workers to available CPUs to avoid contention on smaller CI runners

pkg/sql/parser/sustained_load_test.go

@@ -215,6 +215,11 @@ func TestTokenizeContext_ErrorHandling(t *testing.T) {
 
 // TestTokenizeContext_CancellationResponseTime verifies fast cancellation (< 100ms requirement)
 func TestTokenizeContext_CancellationResponseTime(t *testing.T) {
+	// Skip when race detector is enabled - adds 3-5x overhead making timing measurements unreliable
+	if raceEnabled {
+		t.Skip("Skipping timing-sensitive test with race detector (adds 3-5x overhead)")
+	}
+
 	ctx, cancel := context.WithCancel(context.Background())
 	tkz := GetTokenizer()
 	defer PutTokenizer(tkz)