My usual .gitignore template

.gitignore

#----------------------------------------------------------------------------
# EMBER-CLI DEFAULT
#----------------------------------------------------------------------------
# See http://help.github.com/ignore-files/ for more about ignoring files.

# compiled output
/dist
/tmp

# dependencies
/node_modules
/bower_components

# misc
/.sass-cache
/connect.lock
/coverage/*
/libpeerconnection.log
npm-debug.log
testem.log

#----------------------------------------------------------------------------
# DIVSHOT
#----------------------------------------------------------------------------

.divshot-cache

#----------------------------------------------------------------------------
# RUBY ON RAILS 4 - DEFAULT
#----------------------------------------------------------------------------

# See https://help.github.com/articles/ignoring-files for more about ignoring files.
#
# If you find yourself ignoring temporary files generated by your text editor
# or operating system, you probably want to add a global ignore instead:
#   git config --global core.excludesfile '~/.gitignore_global'

# Ignore bundler config.
/.bundle

# Ignore the default SQLite database.
/db/*.sqlite3
/db/*.sqlite3-journal

# Ignore all logfiles and tempfiles.
/log/*.log
/tmp

#----------------------------------------------------------------------------
# RUBY ON RAILS 4 - ADDITIONAL
#----------------------------------------------------------------------------

vendor/gems/*
vendor/bundle
db/redis*
.rvmrc
.rails_dev
config/mongoid.yml
config/*_local.yml
config/redis.*.conf
config/aws.yml
config/application.yml
config/database.yml
.powenv
.powrc

#----------------------------------------------------------------------------
# MISC
#----------------------------------------------------------------------------
.*cache
*.log
cache/*
backup
_files
log
log/**/*
.monitor
Forwardfile

# OS X Files
.DS_Store
Thumbs.db
*.swp
*.swo
*.lnk
*~

# IDE FILES
*.sublime-*
*.tmproj

# BOWER & BUILD TOOLS
/build/*
/bower_components/*

# SASS
*.sassc

# ZEUS
zeus.json
custom_plan.rb

# NODE
.node_modules
node_modules
*/node_modules
/node_modules/*

# SYMFONY
/web/bundles/
/app/bootstrap*
/app/cache/*
/app/logs/*
/vendor/
/app/config/parameters.yml
composer.phar

# DRUPAL
sites/*/settings*.php
sites/*/files
sites/*/private