Initial setup

Author: Rahugg

.github/workflows/go.yml

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+name: Go CI
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    name: Build and Test
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go-version: [ '1.22.x' ]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Go ${{ matrix.go-version }}
+        uses: actions/setup-go@v4
+        with:
+          go-version: ${{ matrix.go-version }}
+          cache: true
+
+      - name: Install dependencies
+        run: go mod download
+
+      - name: Verify dependencies
+        run: go mod verify
+
+      - name: Run go vet
+        run: go vet ./...
+
+      - name: Run tests with coverage
+        run: go test ./... -v -race -coverprofile=coverage.txt -covermode=atomic
+
+      - name: Upload coverage reports to Codecov
+        uses: codecov/codecov-action@v3
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+
+      - name: Build
+        run: go build -v ./...
+
+      - name: Run golangci-lint
+        uses: golangci/golangci-lint-action@v3
+        with:
+          version: latest

.idea/.gitignore

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+# go-stacktrace
+
+`go-stacktrace` is a robust Go package for enhanced error handling, providing stack traces, error wrapping, and user-friendly error messages with optional color formatting.
+
+## Features
+
+- 🔍 Detailed stack traces for improved debugging
+- 📝 Custom user messages and payload support
+- 🎨 Colorized error output (configurable)
+- 🔄 Error wrapping with context preservation
+- 🪶 Lightweight with zero external dependencies
+- 🧪 Comprehensive test coverage
+
+## Installation
+
+```bash
+go get github.com/Rahugg/go-stacktrace
+```
+
+## Usage
+
+### Basic Error Wrapping
+
+```go
+import "github.com/Rahugg/go-stacktrace/errorhandler"
+
+func main() {
+    err := someFunction()
+    if err != nil {
+        wrappedErr := errorhandler.WrapError(
+            err,
+            "operation-failed",  // payload
+            "Failed to process request"  // user message
+        )
+        fmt.Println(errorhandler.FailOnError(wrappedErr))
+    }
+}
+```
+
+### Controlling Color Output
+
+```go
+// Disable colored output
+errorhandler.SetEnableColors(false)
+
+// Enable colored output (default)
+errorhandler.SetEnableColors(true)
+```
+
+### Error Information
+
+The wrapped error includes:
+- Original error message
+- User-friendly message
+- Custom payload (optional)
+- Stack trace
+- Color-coded output (optional)
+
+## Example Output
+
+```
+Payload: operation-failed
+Error Details
+Original Error: file not found
+User Message: Failed to process request
+
+Stack Trace
+main.someFunction
+    /path/to/file.go:25
+main.main
+    /path/to/main.go:12
+```
+
+## Features in Detail
+
+### TracedError Structure
+```go
+type TracedError struct {
+    OriginalError error
+    UserMessage   string
+    Payload       string
+    StackTrace    []uintptr
+}
+```
+
+### Available Colors
+- Red: Error messages
+- Green: User messages
+- Yellow: Payload information
+- Blue: Function names in stack trace
+- Magenta: Stack trace headers
+- Cyan: Section headers
+
+## Contributing
+
+Contributions are welcome! Please feel free to submit a Pull Request.
+Or DM me.
+
+## License
+
+This project is licensed under the MIT License - see the LICENSE file for details.
+
+## Project Structure
+```
+.
+├── errorhandler
+│   ├── colors.go          # Color constants
+│   ├── errorhandler.go    # Core functionality
+│   └── errorhandler_test.go # Test suite
+├── example
+│   └── main.go           # Usage examples
+├── go.mod
+├── go.yml
+└── README.md
+```

Readme.md

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+package errorhandler
+
+const (
+	// Reset sequence
+	Reset = "\033[0m"
+	
+	// Black Regular colors
+	Black   = "\033[30m"
+	Red     = "\033[31m"
+	Green   = "\033[32m"
+	Yellow  = "\033[33m"
+	Blue    = "\033[34m"
+	Magenta = "\033[35m"
+	Cyan    = "\033[36m"
+	White   = "\033[37m"
+	
+	// BrightBlack Bright colors for better visibility
+	BrightBlack   = "\033[90m"
+	BrightRed     = "\033[91m"
+	BrightGreen   = "\033[92m"
+	BrightYellow  = "\033[93m"
+	BrightBlue    = "\033[94m"
+	BrightMagenta = "\033[95m"
+	BrightCyan    = "\033[96m"
+	BrightWhite   = "\033[97m"
+	
+	// BgRed Background colors (if needed)
+	BgRed     = "\033[41m"
+	BgGreen   = "\033[42m"
+	BgYellow  = "\033[43m"
+	BgBlue    = "\033[44m"
+	BgMagenta = "\033[45m"
+	BgCyan    = "\033[46m"
+	BgWhite   = "\033[47m"
+)

errorhandler/colors.go

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+package errorhandler
+
+import (
+	"errors"
+	"fmt"
+	"runtime"
+	"strings"
+)
+
+// EnableColors determines whether colored output is enabled.
+var EnableColors = true
+
+// TracedError represents an error with additional context, user-friendly messages, and stack trace information.
+type TracedError struct {
+	OriginalError error
+	UserMessage   string
+	Payload       string
+	StackTrace    []uintptr
+}
+
+// Error implements the error interface for TracedError, returning a formatted error message.
+func (te *TracedError) Error() string {
+	return fmt.Sprintf("%s\nUser Message: %s", te.OriginalError.Error(), te.UserMessage)
+}
+
+// FailOnError formats the error message for any given error.
+// If the error is a TracedError, it includes additional context.
+func FailOnError(err error) string {
+	if err == nil {
+		return ""
+	}
+	
+	var tracedErr *TracedError
+	if errors.As(err, &tracedErr) {
+		return tracedErr.formatError()
+	}
+	
+	return err.Error()
+}
+
+// captureCallers retrieves the call stack up to a certain depth.
+func captureCallers() []uintptr {
+	const stackDepth = 64
+	var pcs [stackDepth]uintptr
+	n := runtime.Callers(3, pcs[:])
+	return pcs[:n]
+}
+
+func formatWithColor(color, text string) string {
+	if EnableColors {
+		return fmt.Sprintf("%s%s%s", color, text, Reset)
+	}
+	return text
+}
+
+// formatError formats the TracedError for detailed display, including payload, user message, and stack trace.
+// optionally using colors for better readability.
+func (te *TracedError) formatError() string {
+	var sb strings.Builder
+	
+	// Apply payload if available
+	if te.Payload != "" {
+		// Using BrightYellow for better visibility of metadata
+		sb.WriteString(fmt.Sprintf("%s: %s\n", formatWithColor(BrightYellow, "Payload"), te.Payload))
+	}
+	
+	// Add error details header (using white for headers)
+	sb.WriteString(fmt.Sprintf("%s\n", formatWithColor(BrightWhite, "Error Details")))
+	
+	// Original error in bright red for high visibility
+	sb.WriteString(
+		fmt.Sprintf(
+			"%s: %s\n",
+			formatWithColor(BrightRed, "Error"),
+			formatWithColor(Red, te.OriginalError.Error()),
+		),
+	)
+	
+	// Add user message if available (using cyan for info)
+	if te.UserMessage != "" {
+		sb.WriteString(
+			fmt.Sprintf(
+				"%s: %s\n",
+				formatWithColor(BrightCyan, "User Message"),
+				formatWithColor(Cyan, te.UserMessage),
+			),
+		)
+	}
+	
+	// Add stack trace header
+	sb.WriteString(fmt.Sprintf("\n%s\n", formatWithColor(BrightWhite, "Stack Trace")))
+	frames := runtime.CallersFrames(te.StackTrace)
+	
+	for {
+		frame, more := frames.Next()
+		if !more {
+			break
+		}
+		
+		// Skip runtime-related functions
+		if strings.Contains(frame.Function, "runtime.") {
+			continue
+		}
+		
+		// Function name in bright blue for better visibility
+		sb.WriteString(fmt.Sprintf("%s\n", formatWithColor(BrightBlue, frame.Function)))
+		// File and line in dimmed white for less emphasis
+		sb.WriteString(
+			fmt.Sprintf(
+				"\t%s:%d\n",
+				formatWithColor(White, frame.File),
+				frame.Line,
+			),
+		)
+	}
+	
+	return sb.String()
+}
+
+// WrapError wraps an existing error with additional context, including payload and a user-friendly message.
+func WrapError(err error, payload, message string) error {
+	if err == nil {
+		return nil
+	}
+	
+	var existingTracedErr *TracedError
+	if errors.As(err, &existingTracedErr) {
+		// Merge existing TracedError context
+		if payload == "" {
+			payload = existingTracedErr.Payload
+		}
+		if message != "" && existingTracedErr.UserMessage != "" {
+			message = fmt.Sprintf("%s\n%s", existingTracedErr.UserMessage, message)
+		} else if message == "" {
+			message = existingTracedErr.UserMessage
+		}
+		return &TracedError{
+			OriginalError: existingTracedErr.OriginalError,
+			UserMessage:   message,
+			Payload:       payload,
+			StackTrace:    captureCallers(),
+		}
+	}
+	
+	// Create a new TracedError
+	return &TracedError{
+		OriginalError: err,
+		UserMessage:   message,
+		Payload:       payload,
+		StackTrace:    captureCallers(),
+	}
+}
+
+// SetEnableColors sets the global EnableColors flag for controlling colored output.
+func SetEnableColors(enable bool) {
+	EnableColors = enable
+}