circuitpython/windows/msvc/genhdr.targets

<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" DefaultTargets="GenerateHeaders">

  <Import Project="env.props" Condition="$(PyEnvIncluded)!=True"/>

  <Target Name="GenerateHeaders" DependsOnTargets="MakeQstrData;MakeVersionHeader">
  </Target>

  <PropertyGroup>
    <DestDir>$(PyBuildDir)genhdr\</DestDir>
  </PropertyGroup>

  <Target Name="MakeDestDir">
    <MakeDir Directories="$(DestDir)"/>
  </Target>

  <!--see py/py.mk under #qstr data-->
  <Target Name="MakeQstrData" DependsOnTargets="MakeDestDir">
    <PropertyGroup>
      <PySrcDir>$(PyBaseDir)py\</PySrcDir>
      <PreProc>$(DestDir)qstrdefs.preprocessed.h</PreProc>
      <QstrDefs>$(PyBaseDir)unix\qstrdefsport.h</QstrDefs>
      <DestFile>$(DestDir)qstrdefs.generated.h</DestFile>
      <TmpFile>$(DestFile).tmp</TmpFile>
    </PropertyGroup>
    <ItemGroup>
      <PyIncDirs Include="$(PyIncDirs)"/>
    </ItemGroup>
    <Exec Command="cl /nologo /I@(PyIncDirs, ' /I') /Fi$(PreProc) /P $(PySrcDir)qstrdefs.h"/>
    <Exec Command="python $(PySrcDir)makeqstrdata.py $(PreProc) $(QstrDefs) > $(TmpFile)"/>
    <MSBuild Projects="$(MSBuildThisFileFullPath)" Targets="CopyFileIfDifferent" Properties="SourceFile=$(TmpFile);DestFile=$(DestFile)"/>
  </Target>

  <!--see py/py-version.sh-->
  <Target Name="GetGitState">
    <Exec Command="git describe --dirty --always" ConsoleToMSBuild="true" IgnoreExitCode="true">
      <Output TaskParameter="ConsoleOutput" PropertyName="GitTag" />
    </Exec>
    <Exec Command="git rev-parse --short HEAD 2>NUL || echo unknown" ConsoleToMSBuild="true" IgnoreExitCode="true">
      <Output TaskParameter="ConsoleOutput" PropertyName="GitHash" />
    </Exec>
    <Exec Command="git diff --no-ext-diff --quiet --exit-code 2>NUL || echo 0" ConsoleToMSBuild="true" IgnoreExitCode="true">
      <Output TaskParameter="ConsoleOutput" PropertyName="GitFilesAreClean" />
    </Exec>
    <Exec Command="git diff-index --cached --quiet HEAD -- 2>NUL || echo 0" ConsoleToMSBuild="true" IgnoreExitCode="true" Condition="'$(GitFilesAreClean)'==''">
      <Output TaskParameter="ConsoleOutput" PropertyName="GitFilesAreClean" />
    </Exec>
  </Target>

  <Target Name="MakeVersionHeader" DependsOnTargets="MakeDestDir;GetGitState">
    <PropertyGroup Condition="'$(GitFilesAreClean)'=='0'">
      <GitHash>$(GitHash)-dirty</GitHash>
    </PropertyGroup>
    <PropertyGroup>
      <DestFile>$(DestDir)py-version.h</DestFile>
      <TmpFile>$(DestFile).tmp</TmpFile>
    </PropertyGroup>
    <PropertyGroup>
      <Ver>$([System.Text.RegularExpressions.Regex]::Match($(GitTag), `^v[0-9\.]{5}`))</Ver>
      <Ver Condition="'$(Ver)'==''">v0.0.1</Ver>
      <Ver>$(Ver.Remove(0, 1))</Ver>
      <VerMajor>$(Ver.Split(`.`)[0])</VerMajor>
      <VerMinor>$(Ver.Split(`.`)[1])</VerMinor>
      <VerMicro>$(Ver.Split(`.`)[2])</VerMicro>
    </PropertyGroup>
    <ItemGroup>
      <Lines Include="// This file was generated by $([System.IO.Path]::GetFileName(`$(MsBuildThisFile)`))"/>
      <Lines Include="#define MICROPY_GIT_TAG &quot;$(GitTag)&quot;"/>
      <Lines Include="#define MICROPY_GIT_HASH &quot;$(GitHash)&quot;"/>
      <Lines Include="#define MICROPY_BUILD_DATE &quot;$([System.DateTime]::Now.ToString(`yyyy-MM-dd`))&quot;"/>
      <Lines Include="#define MICROPY_VERSION_MAJOR ($(VerMajor))"/>
      <Lines Include="#define MICROPY_VERSION_MINOR ($(VerMinor))"/>
      <Lines Include="#define MICROPY_VERSION_MICRO ($(VerMicro))"/>
      <Lines Include="#define MICROPY_VERSION_STRING &quot;$(Ver)&quot;"/>
    </ItemGroup>
    <WriteLinesToFile Lines="@(Lines)" File="$(TmpFile)" Overwrite="true"/>
    <MSBuild Projects="$(MSBuildThisFileFullPath)" Targets="CopyFileIfDifferent" Properties="SourceFile=$(TmpFile);DestFile=$(DestFile)"/>
  </Target>

  <!--Copies SourceFile to DestFile only if SourceFile's content differs from DestFile's.
      We use this to 'touch' the generated files only when they are really newer
      so a build is only triggered if the generated content actually changed,
      and not just because the file date changed since the last build-->
  <Target Name="CopyFileIfDifferent">
    <Exec Command="fc /B $(SourceFile) $(DestFile) > NUL 2>&amp;1" IgnoreExitCode="true">
      <Output TaskParameter="ExitCode" PropertyName="FilesDiffer" />
    </Exec>
    <Copy SourceFiles="$(SourceFile)" DestinationFiles="$(DestFile)" Condition="'$(FilesDiffer)'!='0'"/>
  </Target>

</Project>