Example of gitignore file to share on Our Umbraco

.gitignore

## Ignore Visual Studio temporary files, build results, and
## files generated by popular Visual Studio add-ons.

# User-specific files
*.suo
*.user
*.sln.docstates

# Build results

[Dd]ebug/
[Rr]elease/
x64/
build/
[Oo]bj/

# MSTest test Results
[Tt]est[Rr]esult*/
[Bb]uild[Ll]og.*

*_i.c
*_p.c
*.ilk
*.meta
*.obj
*.pch
*.pdb
*.pgc
*.pgd
*.rsp
*.sbr
*.tlb
*.tli
*.tlh
*.tmp
*.tmp_proj
*.log
*.vspscc
*.vssscc
.builds
*.pidb
*.log
*.scc

# Visual C++ cache files
ipch/
*.aps
*.ncb
*.opensdf
#*.sdf
*.cachefile

# Visual Studio profiler
*.psess
*.vsp
*.vspx

# Guidance Automation Toolkit
*.gpState

# ReSharper is a .NET coding add-in
_ReSharper*/
*.[Rr]e[Ss]harper

# TeamCity is a build add-in
_TeamCity*

# DotCover is a Code Coverage Tool
*.dotCover

# NCrunch
*.ncrunch*
.*crunch*.local.xml

# Installshield output folder
[Ee]xpress/

# DocProject is a documentation generator add-in
DocProject/buildhelp/
DocProject/Help/*.HxT
DocProject/Help/*.HxC
DocProject/Help/*.hhc
DocProject/Help/*.hhk
DocProject/Help/*.hhp
DocProject/Help/Html2
DocProject/Help/html

# Click-Once directory
publish/

# Publish Web Output
*.Publish.xml

# NuGet Packages Directory
packages/
!ProjectName.Site/App_Data/packages
!ProjectName.Site/Umbraco/Developer/Packages

# Windows Azure Build Output
csx
*.build.csdef

# Windows Store app package directory
AppPackages/

# Others
sql/
*.Cache
ClientBin/
[Ss]tyle[Cc]op.*
~$*
*~
*.dbmdl
*.[Pp]ublish.xml
*.pfx
*.publishsettings

# RIA/Silverlight projects
Generated_Code/

# Backup & report files from converting an old project file to a newer
# Visual Studio version. Backup files are not needed, because we have git ;-)
_UpgradeReport_Files/
Backup*/
UpgradeLog*.XML
UpgradeLog*.htm

# SQL Server files
#App_Data/*.mdf
#App_Data/*.ldf

#LightSwitch generated files
GeneratedArtifacts/
_Pvt_Extensions/
ModelManifest.xml

# =========================
# Windows detritus
# =========================

# Windows image file caches
Thumbs.db
ehthumbs.db

# Folder config file
Desktop.ini

# Recycle Bin used on file shares
$RECYCLE.BIN/

# Mac desktop service store files
.DS_Store

# =========================
# Files in bin folders
# =========================
ProjectName.Site/[Bb]in/*

# =========================
# Value Converters
# =========================
BuildPackage/artifacts/*
BuildPackage/Package/*

# =========================
# Umbraco
# =========================
ProjectName.Site/App_Data/umbraco.config
ProjectName.Site/App_Data/preview/*.config
ProjectName.Site/App_Data/TEMP/ClientDependency/
ProjectName.Site/App_Data/TEMP/DistCache/
ProjectName.Site/App_Data/TEMP/ExamineIndexes/
ProjectName.Site/App_Data/TEMP/PluginCache/*
ProjectName.Site/App_Data/TEMP/SEOChecker/
ProjectName.Site/App_Data/TEMP/Razor/
ProjectName.Site/App_Data/umbraco.licensing.log.txt
ProjectName.Site/aspnet_client/
ProjectName.Site/App_Data/*.udt
ProjectName.Site/App_Data/NuGetBackup/*
ProjectName.Site/App_Data/Logs/*
ProjectName.Site/Media/*
# =========================
# ImageProcessor DiskCache
# =========================
ProjectName.Site/App_Data/cache/*

# =========================
#Grunt, Sass & Bower
# =========================
**/node_modules
**/node_modules/*
**/.sass-cache
**/.sass-cache/*
**/bower_components
**/bower_components/*
ProjectName.Site/lib/*
ProjectName.Site/css/lib/*
ProjectName.Site/scripts/lib/*
ProjectName.Site/css/main.css
ProjectName.Site/css/main.css.map

ProjectName.Site/dist/


# Ignore Umbraco content cache file
!**/App_Data/umbraco.config
!**/App_Data/umbraco.sdf

# Don't ignore Umbraco packages (VisualStudio.gitignore mistakes this for a NuGet packages folder)
# Make sure to include details from VisualStudio.gitignore BEFORE this
!**/App_Data/[Pp]ackages/
!**/[Uu]mbraco/[Dd]eveloper/[Pp]ackages

# ImageProcessor DiskCache
**/App_Data/cache/



ProjectName.Site/bin/*
!**/ProjectName.Site/bin/Umbraco.Web.PublishedContentModels.dll

Content/*
fonts/*
Scripts/*
Dist/*
.vs/*
/ProjectName.Site/App_Data/TEMP/*
/.cr/Settings.xml
/WebEssentials2015-Settings.json