Add AppVeyor build scripts

appveyor.yml

@@ -0,0 +1,4 @@
+version: "{build}"
+
+build_script:
+  - ps: .\tests\appveyor.ps1

tests/autotest-appveyor.ps1

@@ -0,0 +1,71 @@
+function Invoke-CmdScript($scriptName)
+{
+	$cmdLine = """$scriptName"" $args & set"
+	& $Env:SystemRoot\system32\cmd.exe /c $cmdLine |
+	select-string '^([^=]*)=(.*)$' | foreach-object {
+		$varName = $_.Matches[0].Groups[1].Value
+		$varValue = $_.Matches[0].Groups[2].Value
+		set-item Env:$varName $varValue
+	}
+}
+
+$sources = @("src/pugixml.cpp") + (Get-ChildItem -Path "tests/*.cpp" -Exclude "fuzz_*.cpp")
+$failed = $FALSE
+
+foreach ($vs in 9,10,11,12)
+{
+	foreach ($arch in "x86","x64")
+	{
+		Write-Output "# Setting up VS$vs $arch"
+
+		Invoke-CmdScript "C:\Program Files (x86)\Microsoft Visual Studio $vs.0\VC\vcvarsall.bat" $arch
+		if (! $?) { throw "Error setting up VS$vs $arch" }
+
+		foreach ($defines in "standard", "PUGIXML_WCHAR_MODE")
+		{
+			$target = "tests_vs${vs}_${arch}_${defines}"
+			$deflist = if ($defines -eq "standard") { "" } else { "/D$defines" }
+
+			Add-AppveyorTest $target -Outcome Running
+
+			Write-Output "# Building $target.exe"
+			& cmd /c "cl.exe /Fe$target.exe /EHsc /W4 /WX $deflist $sources 2>&1" | Tee-Object -Variable buildOutput
+
+			if ($?)
+			{
+				Write-Output "# Running $target.exe"
+
+				$sw = [Diagnostics.Stopwatch]::StartNew()
+
+				& .\$target | Tee-Object -Variable testOutput
+
+				if ($?)
+				{
+					Write-Output "# Passed"
+
+					Update-AppveyorTest $target -Outcome Passed -StdOut ($testOutput | out-string) -Duration $sw.ElapsedMilliseconds
+				}
+				else
+				{
+					Write-Output "# Failed"
+
+					Update-AppveyorTest $target -Outcome Failed -StdOut ($testOutput | out-string) -ErrorMessage "Running failed"
+
+					$failed = $TRUE
+				}
+			}
+			else
+			{
+				Write-Output "# Failed to build"
+
+				Update-AppveyorTest $target -Outcome Failed -StdOut ($buildOutput | out-string) -ErrorMessage "Compilation failed"
+
+				$failed = $TRUE
+			}
+		}
+	}
+}
+
+if ($failed) { throw "One or more build steps failed" }
+
+Write-Output "# End"