Read text file and split every line in MSBuild - msbuild

Question

I am stuck at the following issue I have in MSBuild.
I have a text file (buildsolutions1.txt) containing the list (line by line) with all the solutions I need to build and the related developers emails separated by comma :
Common\Common.sln,am#email,com
ExcGw/ExcDataService.sln,pm#email.com;am#email,com;jk#email.com;mk#email.com;Ppp#email.com
MessB/MessB/Message.sln,am#email,com
RiskS/RiskS2.sln,jp#email.com;mz#email.com;mk#email.com;jk#email.com;ps#email.com
I need to read this file line by line,compile each solution and in case it fails –send email to related developer(s)
My idea is to create an item group Lines where every item is a line from this file and it has 2 metadata values:
Solution –first part of the line until comma
Emails –second part of the line from comma to the end of line
So I created a Property Grroup and a target ReadSolutions like below.
I read the file line by line but I do not know how to set the metadata for each line item:
FirstPartOfTheCurrentLine(%(LinesFromFile.Identity))
SecondPartOfTheCurrentLine(%(LinesFromFile.Identity))
This syntax does not work:
%(LinesFromFile.Identity.Split(',')[0])
%(LinesFromFile.Identity.Split(',')[1])
Maybe someone would know how to set the metadata correctly or maybe has another approach to this task.
Thanks
Here is the code:
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003"
ToolsVersion="4.0" DefaultTargets="CoreBuild">
<PropertyGroup>
<TPath>$(MSBuildProjectDirectory)\..\tools\MSBuild Extension Pack Binaries\MSBuild.ExtensionPack.tasks</TPath>
</PropertyGroup>
<Import Project="$(TPath)"/>
<PropertyGroup>
<!-- Default working folder -->
<RootFolder Condition=" '$(RootFolder)' == '' " >c:\ff\</RootFolder>
<BuildSolutionsFile >buildsolutions1.txt</BuildSolutionsFile>
<BuildSolutionsFileFullPath >$(RootFolder)$(BuildSolutionsFile)</BuildSolutionsFileFullPath>
</PropertyGroup>
<Target Name="ReadSolutions">
<Message Text=" Build solutions text file is : $(BuildSolutionsFileFullPath)" />
<!—Read the file and store each line as an item into LinesFromFile item group-->
<ReadLinesFromFile
File="$(BuildSolutionsFileFullPath)" >
<Output
TaskParameter="Lines"
ItemName="LinesFromFile"/>
</ReadLinesFromFile>
<Message Text="Current line : %(LinesFromFile.Identity)" />
<Message Text="===================================" />
<!—Create the other item group where each item is a line and has the metadata Solution and Emails -->
<ItemGroup>
<Lines Include="%(LinesFromFile.Identity)" >
<Solution>FirstPartOfTheCurrentLine(%(LinesFromFile.Identity))</Solution>
<Emails>SecondPartOfTheCurrentLine(%(LinesFromFile.Identity)) </Emails>
</Lines>
</ItemGroup>
<Message Text="All the Lines :%0A#(Lines,'%0A')" />
</Target>

Answer 1

Here is the data I was working with:
Common\Common.sln,am#email,com
ExcGw/ExcDataService.sln,pm#email.com;am#email,com;jk#email.com;mk#email.com;Ppp#email.com
MessB/MessB/Message.sln,am#email,com
RiskS/RiskS2.sln,jp#email.com;mz#email.com;mk#email.com;jk#email.com;ps#email.com
Slightly modified your sample to include a line break for the fourth solution.
Here is the modified code:
<ItemGroup>
<Lines Include="#(LinesFromFile)" >
<Solution>$([System.String]::Copy('%(LinesFromFile.Identity)').Split(',')[0])</Solution>
<Emails>$([System.String]::Copy('%(LinesFromFile.Identity)').Split(',')[1])</Emails>
</Lines>
</ItemGroup>
<Message Text="Solutions to Emails-> %(Lines.Solution) -> %(Lines.Emails)" />
We're copying the value to a property so we can use a property function to split the value and get the part we need.
Here is the output:
Solutions to Emails-> Common\Common.sln -> am#email
Solutions to Emails-> ExcGw/ExcDataService.sln -> pm#email.com;am#email
Solutions to Emails-> MessB/MessB/Message.sln -> am#email
Solutions to Emails-> RiskS/RiskS2.sln -> jp#email.com;mz#email.com;mk#email.com;jk#email.com;ps#email.com