TeamCity: How to setup proper trigger file wildcards - teamcity

Question

Say I have a solution containing the following projects in a folder-tree (this is C# but could in principle be anything):
MySolution
- SharedFolderA
- File1.cs
- File2.cs
- SharedProject.csproj
- SharedFolderB
- File1.cs
- File2.cs
- SharedProject.csproj
- Hosts
- Host1
- Program.cs
- Host1.csproj
- Host2
- Program.cs
- Host2.csproj
Now in TeamCity I wish to make building of each host into seperate builds. So I will have a project called MySolution containing the following builds:
Build Host1
Build Host2
Now comes the question: For each build I want to setup a VCS trigger rule, that triggers the build if the commits contain changes to either
files in the root folder
files in one or more of the shared folders
files in the specific host folder - but not the other host folder
Example: Build of Host2 should trigger if any files have been changed in any of the following folders:
MySolution
SharedFolderA
SharedFolderB
Hosts/Host2
How should I setup the File wildcards?

Answer 1

The format is as follows from TeamCity Ref Perhaps consider a different approach, since you have different build/host conditions!
Option 1:
Since you have various hosts with build conditions, a dependency build with wildcards is (IMHO) **recommended, i.e. use the Artifact Dependency feature which in turn allows wild cards in files & folders picture below.
Option 2: However if you choose to go down your original Build Trigger Path, you can try this.
+|-[:user=VCS_username;]root=VCS_root_id;]comment=VCS_comment_regexp]]:Ant_like_wildcard
Once you have setup via the UI, you can make a copy and edit the triggers by adding modifying like so.
//all files, or .CS in the root folder
/root/**
/root/*.cs
//files in one or more of the shared folders
/root/SharedFolderA/**
/root/SharedFolderB/*.cs
//files in the specific host folder - but not the other host folder
/root/SharedFolderA/**
// the -ve sign will ignore it
-/root/Hosts/Host2/**
You can add regex or ** or ? singmatch