How extract a folder name to a file path with msbuild? - msbuild

I have a path for compilation :
C:\FolderA\Folder16-9\ForderC\FolderD
I want to extract the name of the second folder "Folder16-9" to put in a variable and use it after for compilation destination path.
How I can extract this folder name? is it possible with MSBuild scripting?

The following example code
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<Target Name="Test">
<PropertyGroup>
<ExamplePath>C:\FolderA\Folder16-9\ForderC\FolderD</ExamplePath>
<SecondPart>$(ExamplePath.Split('\')[2])</SecondPart>
</PropertyGroup>
<Message Text="$(ExamplePath)" />
<Message Text="$(SecondPart)" />
</Target>
</Project>
will output
C:\FolderA\Folder16-9\ForderC\FolderD
Folder16-9
String methods can be used on properties. The example code is splitting the string on '/' and from the resulting array is using the value of index 2.
In the example, I defined the test value as a property. If you need to work with Item metadata, e.g. %(FullPath), note that property functions can't be used on metadata and the metadata will need to pulled out into a property.

Related

Using the Zip task in MSBuild

I have been attempting to use the zip task of msbuild in a project I am working on at the moment.
My project file looks something like this:
<PropertyGroup> <MSBuildCommunityTasksPath>$(SolutionDir)\.build</MSBuildCommunityTasksPath> </PropertyGroup>
<Import Project="$(MSBuildCommunityTasksPath)\MSBuild.Community.Tasks.Targets" />
<ItemGroup>
<FileToZip include="C:\FilePath"></FilesToZip>
<FileToZip include="C:\FilePath"></FilesToZip>
</ItemGroup>
<Target Name="BeforeBuild">
<PropertyGroup>
<ReleasePath>\releasepath</ReleasePath>
<Zip Files="#(FilesToZip)" WorkingDirectory="$(ReleasePath)" ZipFileName="HTMLeditor.html" ZipLevel="9" />
</Target>
However, the zip file updates but does not contain the files specified in the item group FilesToZip. I cannot figure out why they aren't being recognised! I have double checked file paths and they are correct. Any ideas?
I think you want to do something like this:
<ItemGroup>
<FileToZip include="C:\FilePath;C:\FilePath"/>
</ItemGroup>
As I mentioned in my comment, simply creating a variable (FileToZip) and repeating it twice with different values does not give you an array that contains both of the values. You end up with only the last value (and not an array at all). Your include attribute is a selector which is used to build the array and it can contain multiple values, wildcards and other patterns which are used to build out that array for you.
Here's a link to MSDN that gives you more information on how to use the Include attribute: http://msdn.microsoft.com/en-us/library/ms171454.aspx
I ditched the ItemGroup in the end, and went with another way of doing it.
<Target Name="Zip">
<CreateItem Include="FilesToInclude" >
<Output ItemName="ZipFiles" TaskParameter="Include"/>
<Zip ZipFileName="ZipFile.zip" WorkingDirectory="FolderToWriteZipTo" Files="#(ZipFiles)" />
</Target>
This method seemed to be easier and wasn't adding files to the root of the file.
Thanks for the help though guys.

Pass list item to Properties when calling reusable msbuild target

I'm trying to create a reusable Target in msbuild, following the basic model outlined in How to invoke the same msbuild target twice?
I'm stuck trying to pass a property that I want interpreted as a list. I haven't found an example online that deals with this situation. As I understand it, the problem is that Properties is already treated as a list item, so it doesn't like having a list item passed in as well. Is there a way to get msbuild to pack and unpack the list correctly here?
Msbuild is complaining with:
error MSB4012: The expression "FilesToZip=#(Scripts)" cannot be used in this context. Item lists cannot be concatenated with other strings where an item list is expected. Use a semicolon to separate multiple item lists.
Here's an example caller:
<Target Name="BuildMigrationZip">
<MSBuild Projects="BuildZip.msbuild"
Targets="BuildZip"
Properties="FilesToZip=#(Scripts);OutputZipFile=$(MigrationPackageFilePath);OutputFolder=$(MigrationPackagePath);Flatten=true"/>
<Message Text="Created database migration zip: $(MigrationPackageFilePath)" Importance="high"/>
</Target>
And the base target:
<Target Name="BuildZip">
<MakeDir Directories="$(OutputFolder)"/>
<Zip Files="#(FilesToZip)"
ZipFileName="$(OutputZipFile)"
Flatten="$(Flatten)"
ParallelCompression="false" />
</Target>
I'm basically at the point of just going back to cut and paste for these, although I want to package up a number of zips here.
UPDATE: The same issue applies to setting Inputs on the reusable target. My question up to this point addresses the raw functionality, but it would be nice to keep dependencies working. So for example:
<Target Name="BuildZip"
Inputs="#(FilesToZip)"
Outputs="$(OutputZipFile)">
<MakeDir Directories="$(OutputFolder)"/>
<Zip Files="#(FilesToZip)"
ZipFileName="$(OutputZipFile)"
Flatten="$(Flatten)"
ParallelCompression="false" />
</Target>
They key is to pass the list around as a property. So when your Scripts list is defined as
<ItemGroup>
<Scripts Include="A"/>
<Scripts Include="B"/>
<Scripts Include="C"/>
</ItemGroup>
then you first convert it into a property (which just makes semicolon seperated items, but msbuild knows how to pass this via the Properties of the MSBuild target) then pass it to the target:
<Target Name="BuildMigrationZip">
<PropertyGroup>
<ScriptsProperty>#(Scripts)</ScriptsProperty>
</PropertyGroup>
<MSBuild Projects="$(MSBuildThisFile)" Targets="BuildZip"
Properties="FilesToZip=$(ScriptsProperty)" />
</Target>
(note I'm using $(MSBuildThisFile) here: you don't necessarily need to create seperate build files for every single target, in fact for small targets like yours it's much more convenient to put it in the same file)
Then in your destination target you turn the property into a list again:
<Target Name="BuildZip">
<ItemGroup>
<FilesToZipList Include="$(FilesToZip)"/>
</ItemGroup>
<Message Text="BuildZip: #(FilesToZipList)" />
</Target>
Output:
BuildZip: A;B;C
Update
When working with Inputs, you cannot pass #(FilesToZip) since that expands to nothing because is not a list: it's a property - which happens to be a number of semicolon-seperated strings. And as such, it is usable for Inputs you just have to expand it as the property it is i.e. $(FilesToZip):
<Target Name="BuildZip"
Inputs="$(FilesToZip)"
Outputs="$(OutputZipFile)">
...
</Target>
Output of second run:
BuildZip:
Skipping target "BuildZip" because all output files are up-to-date with respect to the input files.

How to access ItemGroup Metadata as properties within MSBuild script

Is it possible using default MSBuild technology to access a listing within an item group as a property in msbuild? I know I can do this in a custom task in C#, but I am trying to use built-in capabilities if possible.
Example:
I have an item group:
<ItemGroup>
<SolutionToBuild Include="$(SolutionRoot)\Solutions\ClassLib\ClassLib.sln">
<Properties>
AssemblySigningKey=MySigningKey;
OutDir=$(BinariesRoot)\SomeLocation\;
LibraryName=ClassLib;
PlatformTarget=x86;
</Properties>
</SolutionToBuild>
<SolutionToBuild Include="$(SolutionRoot)\Solutions\BLAH\BLAH.sln">
<Properties>
ProjectType=Web;
</Properties>
</SolutionToBuild>
</ItemGroup>
I would like to extract the value of AssemblySigningKey, if it exists, and place this value into an MSBuild variable.
I have tried a few methods and the closest example I could find is using a tranformation within a separate target, but even this looks to be a bit of a hack, even if I could get the Condition to work I would then have to parse out the value splitting on the =. Is there no standard method to access this metadata within the item group?
<Target Name="TransformProps"
Inputs="%(SolutionToBuild.Identity)"
Outputs="_Non_Existent_Item_To_Batch_">
<PropertyGroup>
<IncludeProps>%(SolutionToBuild.Properties)</IncludeProps>
</PropertyGroup>
<ItemGroup>
<IncludeProps Include="$(IncludeProps)" />
<Solution Include="#(SolutionToBuild)">
<IncludeProps Condition="'True'=='True' ">#(IncludeProps ->'-PROP %(Identity)', ' ')</IncludeProps>
</Solution>
</ItemGroup>
</Target>
My main target would call into the tranform in the following manner:
<Target Name="Main" DependsOnTargets="TransformProps">
<Message Text="Solution info: %(Solution.Identity) %(Solution.IncludeProps)" />
</Target>
Items Metadata are declared and transformed using xml tags. It seems like you're using the MSBuild Task to build some solutions - the properties tag is a parameter specific to this task.
The conversion from comma separated list and items as you tried won´t help because, as you mentioned, you still have the equal sign as the link from the keys to the values. I think there´s no way of obtaining the signing key value without parsing. After all msbuild do not consider the list of properties as metadata, it is just a list of strings.
I did the script below to exemplify how msbuild declare and read metadata. It is not an option for you because your ItemGroup structure cannot be changed.
IMHO in this case you have no option but use a custom task and do the parsing. Use Inline Tasks if you´re building with msbuild 4.0.
<?xml version="1.0" encoding="UTF-8" ?>
<Project DefaultTargets="Main" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<ItemGroup>
<SolutionToBuild Include="$(SolutionRoot)\Solutions\ClassLib\ClassLib.sln">
<AssemblySigningKey>MySigningKey123</AssemblySigningKey>
<Properties>
AssemblySigningKey=MySigningKey456;
OutDir=$(BinariesRoot)\SomeLocation\;
LibraryName=ClassLib;
PlatformTarget=x86;
</Properties>
</SolutionToBuild>
</ItemGroup>
<Target Name="TransformProps">
<PropertyGroup>
<MySigningKey>#(SolutionToBuild->'%(AssemblySigningKey)')</MySigningKey>
</PropertyGroup>
</Target>
<Target Name="Main" DependsOnTargets="TransformProps">
<Message Text="My desired Property Value: $(MySigningKey)" />
</Target>

msbuild, overwriting property value in different file

I am trying to modify property value depending on certain condition in another file.
For ex.
I have one file that calls target file.
<Import Project="sample.vcxproj"/>
<PropertyGroup>
<Gender>Boy</Gender>
<Search>UNIQUE_NAME</Search>
</PropertyGroup>
<Target Name="Build">
<callTarget Targets="SetName"/>
<Message Text="$(Person)"/>
</Target>
I have one file that includes item group to decide and target that modifies
<ItemGroup>
<Name Include="UNIQUE_NAME">
<Boy>DAVID</Boy>
<Girl>REBECCA</Girl>
</NAME>
</ItemGroup>
<Target Name="SetName">
<PropertyGroup Condition="'$(Search)'=='#(Name)'">
<Person>#(Name->'%($(Gender))')</Person>
</PropertyGroup>
</target>
But when I print 'Person' I get empty string. And I checked that 'SetName' is called and correct name is set.
What am I missing here?
This has to do with the accessibility of MSBuild properties, depending on whether you are using DependsOnTargets or CallTarget. When using DependsOnTargets you will have greater access to properties. That is why your example works when using that method.
There is an existing stackoverflow article that speaks to this issue.
It works fine using 'DependsOnTarget' attrib instead of callTarget task

Including files with directory specified separately in MSBuild

This seems like it should be simple but I can't work it out from the reference and my google-fu is apparently weak.
I just want to specify the file names and base folder separately in the build file...
<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
<TestFilesWithFolder>
B:\Root\Test1.*;
B:\Root\Test2.*
</TestFilesWithFolder>
<TestFiles>Test1.*;Test2.*</TestFiles>
<TestFileRoot>B:\Root</TestFileRoot>
</PropertyGroup>
<Target Name="Build">
<ItemGroup>
<TestFilesGroupWithFolder Include="$(TestFilesWithFolder)" />
<TestFilesGroup Include="$(TestFileRoot)\$(TestFiles)" />
</ItemGroup>
<Warning Text="Source files with folder: #(TestFilesGroupWithFolder)" />
<Warning Text="Source files: #(TestFilesGroup)" />
</Target>
</Project>
When I run this, the first warning shows both files as expected, but the second warning only shows the first file (since the straight string concat put the folder name on the first but not second).
How would I get the ItemGroup "TestFilesGroup" to include both the files given the "TestFiles" and "TestFileRoot" properties?
It is possible to convert a semicolon delimited list of things into an item, which would make this possible, except that the items in your property contain wildcards, so if you want to have MSBuild treat them as items in a list, at the moment MSBuild first sees it the path must be valid. There may be a way to do that but I can't think of one. In other words...
<ItemGroup>
<TestFiles Include="$(TestFiles)" />
</ItemGroup>
...only works if $(TestFiles) contains a delimited list of either things with no wildcards, or qualified paths that actually exist.
Further, MSBuild can't compose a path with a wildcard inside the Include attribute and evaluate it at the same time, so you need a trick to first compose the full path separately, then feed it into the Include attribute. The following will work, but it requires changing your delimited property into a set of items. It batches a dependent target on this item list, with each batched target execution calculating a meta value for one item, which is stored off in a new meta value. When the original target executes, it is able to use that meta value in a subsequent Include.
<PropertyGroup>
<TestFilesWithFolder>
D:\Code\Test1.*;
D:\Code\Test2.*
</TestFilesWithFolder>
<TestFileRoot>D:\Code</TestFileRoot>
</PropertyGroup>
<ItemGroup>
<TestFilePattern Include="TestFilePattern">
<Pattern>Test1.*</Pattern>
</TestFilePattern>
<TestFilePattern Include="TestFilePattern">
<Pattern>Test2.*</Pattern>
</TestFilePattern>
</ItemGroup>
<Target Name="Compose" Outputs="%(TestFilePattern.Pattern)">
<ItemGroup>
<TestFilePattern Include="TestFilePattern">
<ComposedPath>#(TestFilePattern->'$(TestFileRoot)\%(Pattern)')</ComposedPath>
</TestFilePattern>
</ItemGroup>
</Target>
<Target Name="Build" DependsOnTargets="Compose">
<ItemGroup>
<TestFilesGroupWithFolder Include="$(TestFilesWithFolder)" />
</ItemGroup>
<Warning Text="Source files with folder: #(TestFilesGroupWithFolder)" />
<ItemGroup>
<ComposedTestFiles Include="%(TestFilePattern.ComposedPath)" />
</ItemGroup>
<Warning Text="Source files: #(ComposedTestFiles)" />
</Target>
Which produces the following output:
(Build target) ->
d:\Code\My.proj(80,5): warning : Source files with folder:
D:\Code\Test1.txt;D:\Code\Test2.txt
d:\Code\My.proj(84,5): warning : Source files:
D:\Code\Test1.txt;D:\Code\Test2.txt