.gitattributes

# ============================================================================
# Git Attributes Configuration
# Ensures consistent line endings, diff strategies, and merge handling
# across Windows, macOS, and Linux
# ============================================================================

# ============================================================================
# TEXT FILES - Auto line ending normalization (CRLF on Windows, LF on Unix)
# ============================================================================

# Documentation
*.md text eol=lf
*.markdown text eol=lf
*.txt text eol=lf
*.rst text eol=lf
*.asciidoc text eol=lf

# Code - always LF for consistency
*.py text eol=lf
*.js text eol=lf
*.mjs text eol=lf
*.ts text eol=lf
*.tsx text eol=lf
*.jsx text eol=lf
*.cs text eol=lf
*.java text eol=lf
*.cpp text eol=lf
*.c text eol=lf
*.h text eol=lf
*.hpp text eol=lf
*.go text eol=lf
*.rs text eol=lf
*.rb text eol=lf
*.php text eol=lf
*.swift text eol=lf
*.kt text eol=lf

# Web
*.html text eol=lf
*.xml text eol=lf
*.xhtml text eol=lf
*.css text eol=lf
*.scss text eol=lf
*.sass text eol=lf
*.less text eol=lf

# Configuration
*.json text eol=lf
*.yaml text eol=lf
*.yml text eol=lf
*.toml text eol=lf
*.ini text eol=lf
*.cfg text eol=lf
*.conf text eol=lf
.gitignore text eol=lf
.gitattributes text eol=lf
.editorconfig text eol=lf
*.env text eol=lf
.env.* text eol=lf

# Data formats
*.csv text eol=lf
*.tsv text eol=lf
*.sql text eol=lf
*.graphql text eol=lf
*.gql text eol=lf

# Shell scripts (must have LF)
*.sh text eol=lf
*.bash text eol=lf
*.zsh text eol=lf
*.fish text eol=lf
*.ps1 text eol=crlf
*.cmd text eol=crlf
*.bat text eol=crlf

# Patch files
*.patch text eol=lf
*.diff text eol=lf

# ============================================================================
# BINARY FILES - Never attempt line ending conversion
# ============================================================================

# Images
*.png binary
*.jpg binary
*.jpeg binary
*.gif binary
*.bmp binary
*.tiff binary
*.ico binary
*.webp binary
*.svg binary
*.psd binary
*.xcf binary
*.ai binary

# 3D Models
*.obj binary
*.fbx binary
*.blend binary
*.dae binary
*.max binary
*.maya binary
*.gltf binary
*.glb binary
*.usdz binary

# Audio
*.wav binary
*.mp3 binary
*.ogg binary
*.flac binary
*.aac binary
*.m4a binary
*.wma binary

# Video
*.mp4 binary
*.avi binary
*.mov binary
*.mkv binary
*.flv binary
*.wmv binary
*.webm binary
*.m4v binary
*.mpg binary
*.mpeg binary

# Archives
*.zip binary
*.7z binary
*.rar binary
*.tar binary
*.gz binary
*.bz2 binary
*.iso binary

# Databases
*.db binary
*.sqlite binary
*.sqlite3 binary
*.mdb binary

# ML Models
*.h5 binary
*.keras binary
*.pb binary
*.pth binary
*.pt binary
*.onnx binary
*.pkl binary
*.pickle binary
*.joblib binary
*.weights binary
*.bin binary
*.safetensors binary

# Executables and libraries
*.exe binary
*.dll binary
*.so binary
*.dylib binary
*.o binary
*.a binary
*.lib binary
*.class binary
*.jar binary

# PDFs and documents
*.pdf binary
*.doc binary
*.docx binary
*.xls binary
*.xlsx binary
*.ppt binary
*.pptx binary
*.odt binary

# Fonts
*.ttf binary
*.otf binary
*.woff binary
*.woff2 binary
*.eot binary

# Unity specific binaries
*.unitypackage binary
*.asset binary

# ============================================================================
# DIFF AND MERGE STRATEGIES
# ============================================================================

# Use union merge for certain config conflicts (prefer both versions)
*.yml merge=union
*.yaml merge=union

# Python - use standard merge but preserve formatting
*.py diff=python merge=binary

# JSON - use union for package managers (both dependency branches kept)
package.json merge=union
package-lock.json merge=union
pnpm-lock.yaml merge=union
yarn.lock merge=union
poetry.lock merge=union

# Unity scene files - use union merge to reduce conflicts
*.unity merge=union
*.prefab merge=union

# ============================================================================
# DIFF DISPLAY CONFIGURATION
# ============================================================================

# These file types should show meaningful diffs
*.json diff=json
*.py diff=python
*.js diff=javascript
*.ts diff=typescript
*.java diff=java
*.cs diff=csharp
*.cpp diff=cpp

# ============================================================================
# EXPORT IGNORE - Files not needed in archives
# ============================================================================

.gitignore export-ignore
.gitattributes export-ignore
.github export-ignore
.gitlab-ci.yml export-ignore
.travis.yml export-ignore
*.md export-ignore
LICENSE export-ignore
CONTRIBUTING.md export-ignore
CODE_OF_CONDUCT.md export-ignore

# ============================================================================
# PERFORMANCE HINTS
# ============================================================================

# Delta compression for text (faster transfers)
*.json delta
*.yaml delta
*.py delta
*.js delta

# Don't delta these (already compressed or binary)
*.png -delta
*.jpg -delta
*.mp4 -delta
*.zip -delta