public override bool RunTask()
{
try {
var path = Path.GetFullPath(LockFile);
var key = new Tuple <string, string> (nameof(WriteLockFile), path); // Use the full path as part of the key
// Check if already registered, for sanity
var existing = BuildEngine4.GetRegisteredTaskObjectAssemblyLocal <DeleteFileAfterBuild> (key, RegisteredTaskObjectLifetime.Build);
if (existing == null)
{
if (File.Exists(path))
{
Log.LogCodedWarning("XA5302", Properties.Resources.XA5302, path);
}
else
{
Directory.CreateDirectory(Path.GetDirectoryName(path));
File.WriteAllText(path, "");
}
BuildEngine4.RegisterTaskObjectAssemblyLocal(key, new DeleteFileAfterBuild(path), RegisteredTaskObjectLifetime.Build);
}
else
{
Log.LogDebugMessage("Lock file was created earlier in the build.");
}
} catch (Exception ex) {
Log.LogDebugMessage($"Exception in {nameof (WriteLockFile)}: {ex}");
}
// We want to always continue
return(true);
}
string FindMono()
{
string mono = BuildEngine4.GetRegisteredTaskObjectAssemblyLocal <string> (MonoKey, Lifetime);
if (!string.IsNullOrEmpty(mono))
{
Log.LogDebugMessage($"Found cached mono via {nameof (BuildEngine4.RegisterTaskObject)}");
return(mono);
}
var env = Environment.GetEnvironmentVariable("PATH");
if (string.IsNullOrEmpty(env))
{
foreach (var path in env.Split(Path.PathSeparator))
{
if (File.Exists(mono = Path.Combine(path, "mono")))
{
Log.LogDebugMessage("Found mono in $PATH");
BuildEngine4.RegisterTaskObjectAssemblyLocal(MonoKey, mono, Lifetime);
return(mono);
}
}
}
foreach (var path in KnownMonoPaths)
{
if (File.Exists(mono = path))
{
Log.LogDebugMessage($"Found mono in {nameof (KnownMonoPaths)}");
BuildEngine4.RegisterTaskObjectAssemblyLocal(MonoKey, mono, Lifetime);
return(mono);
}
}
// Last resort
BuildEngine4.RegisterTaskObjectAssemblyLocal(MonoKey, mono = "mono", Lifetime);
return(mono);
}
public override bool RunTask()
{
if (InputAssemblies == null)
{
return(true);
}
var output = new List <ITaskItem> (InputAssemblies.Length);
foreach (var assemblyItem in InputAssemblies)
{
// Skip .NET 6.0 <FrameworkReference/> assemblies
var frameworkReferenceName = assemblyItem.GetMetadata("FrameworkReferenceName") ?? "";
if (frameworkReferenceName == "Microsoft.Android")
{
continue; // No need to process Mono.Android.dll or Java.Interop.dll
}
if (frameworkReferenceName.StartsWith("Microsoft.NETCore.", StringComparison.OrdinalIgnoreCase))
{
continue; // No need to process BCL assemblies
}
if (!File.Exists(assemblyItem.ItemSpec))
{
Log.LogDebugMessage($"Skipping non-existent dependency '{assemblyItem.ItemSpec}'.");
continue;
}
if (string.Equals(assemblyItem.GetMetadata("TargetPlatformIdentifier"), "android", StringComparison.OrdinalIgnoreCase))
{
output.Add(assemblyItem);
continue;
}
using (var pe = new PEReader(File.OpenRead(assemblyItem.ItemSpec))) {
var reader = pe.GetMetadataReader();
// Check in-memory cache
var module = reader.GetModuleDefinition();
var key = (nameof(FilterAssemblies), reader.GetGuid(module.Mvid));
var value = BuildEngine4.GetRegisteredTaskObjectAssemblyLocal(key, Lifetime);
if (value is bool isMonoAndroidAssembly)
{
if (isMonoAndroidAssembly)
{
Log.LogDebugMessage($"Cached: {assemblyItem.ItemSpec}");
output.Add(assemblyItem);
}
continue;
}
// Check assembly definition
var assemblyDefinition = reader.GetAssemblyDefinition();
if (IsAndroidAssembly(assemblyDefinition, reader))
{
output.Add(assemblyItem);
BuildEngine4.RegisterTaskObjectAssemblyLocal(key, value: true, Lifetime);
continue;
}
// Fallback to looking for a Mono.Android reference
if (MonoAndroidHelper.HasMonoAndroidReference(reader))
{
Log.LogDebugMessage($"Mono.Android reference found: {assemblyItem.ItemSpec}");
output.Add(assemblyItem);
BuildEngine4.RegisterTaskObjectAssemblyLocal(key, value: true, Lifetime);
continue;
}
// Fallback to looking for *.jar or __Android EmbeddedResource files
if (HasEmbeddedResource(reader))
{
Log.LogDebugMessage($"EmbeddedResource found: {assemblyItem.ItemSpec}");
output.Add(assemblyItem);
BuildEngine4.RegisterTaskObjectAssemblyLocal(key, value: true, Lifetime);
continue;
}
// Not a MonoAndroid assembly, store false
BuildEngine4.RegisterTaskObjectAssemblyLocal(key, value: false, Lifetime);
}
}
OutputAssemblies = output.ToArray();
return(!Log.HasLoggedErrors);
}
void AddEnvironment()
{
bool usesMonoAOT = false;
bool usesAssemblyPreload = EnablePreloadAssembliesDefault;
bool brokenExceptionTransitions = false;
var environmentVariables = new Dictionary <string, string> (StringComparer.Ordinal);
var systemProperties = new Dictionary <string, string> (StringComparer.Ordinal);
if (!Enum.TryParse(PackageNamingPolicy, out PackageNamingPolicy pnp))
{
pnp = PackageNamingPolicyEnum.LowercaseCrc64;
}
AotMode aotMode = AotMode.None;
if (!string.IsNullOrEmpty(AndroidAotMode) && Aot.GetAndroidAotMode(AndroidAotMode, out aotMode) && aotMode != AotMode.None)
{
usesMonoAOT = true;
}
bool haveLogLevel = false;
bool haveMonoDebug = false;
bool havebuildId = false;
bool haveHttpMessageHandler = false;
bool haveTlsProvider = false;
bool haveMonoGCParams = false;
SequencePointsMode sequencePointsMode;
if (!Aot.TryGetSequencePointsMode(AndroidSequencePointsMode, out sequencePointsMode))
{
sequencePointsMode = SequencePointsMode.None;
}
foreach (ITaskItem env in Environments ?? new TaskItem[0])
{
foreach (string line in File.ReadLines(env.ItemSpec))
{
var lineToWrite = line;
if (lineToWrite.StartsWith("MONO_LOG_LEVEL=", StringComparison.Ordinal))
{
haveLogLevel = true;
}
if (lineToWrite.StartsWith("MONO_GC_PARAMS=", StringComparison.Ordinal))
{
haveMonoGCParams = true;
}
if (lineToWrite.StartsWith("XAMARIN_BUILD_ID=", StringComparison.Ordinal))
{
havebuildId = true;
}
if (lineToWrite.StartsWith("MONO_DEBUG=", StringComparison.Ordinal))
{
haveMonoDebug = true;
if (sequencePointsMode != SequencePointsMode.None && !lineToWrite.Contains("gen-compact-seq-points"))
{
lineToWrite = line + ",gen-compact-seq-points";
}
}
if (lineToWrite.StartsWith("XA_HTTP_CLIENT_HANDLER_TYPE=", StringComparison.Ordinal))
{
haveHttpMessageHandler = true;
}
if (lineToWrite.StartsWith("XA_TLS_PROVIDER=", StringComparison.Ordinal))
{
haveTlsProvider = true;
}
if (lineToWrite.StartsWith("mono.enable_assembly_preload=", StringComparison.Ordinal))
{
int idx = lineToWrite.IndexOf('=');
uint val;
if (idx < lineToWrite.Length - 1 && UInt32.TryParse(lineToWrite.Substring(idx + 1), out val))
{
usesAssemblyPreload = idx == 1;
}
continue;
}
if (lineToWrite.StartsWith("XA_BROKEN_EXCEPTION_TRANSITIONS="))
{
brokenExceptionTransitions = true;
continue;
}
AddEnvironmentVariableLine(lineToWrite);
}
}
if (_Debug && !haveLogLevel)
{
AddEnvironmentVariable(defaultLogLevel[0], defaultLogLevel[1]);
}
if (sequencePointsMode != SequencePointsMode.None && !haveMonoDebug)
{
AddEnvironmentVariable(defaultMonoDebug[0], defaultMonoDebug[1]);
}
if (!havebuildId)
{
AddEnvironmentVariable("XAMARIN_BUILD_ID", BuildId);
}
if (!haveHttpMessageHandler)
{
if (HttpClientHandlerType == null)
{
AddEnvironmentVariable(defaultHttpMessageHandler[0], defaultHttpMessageHandler[1]);
}
else
{
AddEnvironmentVariable("XA_HTTP_CLIENT_HANDLER_TYPE", HttpClientHandlerType.Trim());
}
}
if (!haveTlsProvider)
{
if (TlsProvider == null)
{
AddEnvironmentVariable(defaultTlsProvider[0], defaultTlsProvider[1]);
}
else
{
AddEnvironmentVariable("XA_TLS_PROVIDER", TlsProvider.Trim());
}
}
if (!haveMonoGCParams)
{
if (EnableSGenConcurrent)
{
AddEnvironmentVariable("MONO_GC_PARAMS", "major=marksweep-conc");
}
else
{
AddEnvironmentVariable("MONO_GC_PARAMS", "major=marksweep");
}
}
global::Android.Runtime.BoundExceptionType boundExceptionType;
if (String.IsNullOrEmpty(BoundExceptionType) || String.Compare(BoundExceptionType, "System", StringComparison.OrdinalIgnoreCase) == 0)
{
boundExceptionType = global::Android.Runtime.BoundExceptionType.System;
}
else if (String.Compare(BoundExceptionType, "Java", StringComparison.OrdinalIgnoreCase) == 0)
{
boundExceptionType = global::Android.Runtime.BoundExceptionType.Java;
}
else
{
throw new InvalidOperationException($"Unsupported BoundExceptionType value '{BoundExceptionType}'");
}
var appConfState = BuildEngine4.GetRegisteredTaskObjectAssemblyLocal <ApplicationConfigTaskState> (ApplicationConfigTaskState.RegisterTaskObjectKey, RegisteredTaskObjectLifetime.Build);
foreach (string abi in SupportedAbis)
{
NativeAssemblerTargetProvider asmTargetProvider = GetAssemblyTargetProvider(abi);
string baseAsmFilePath = Path.Combine(EnvironmentOutputDirectory, $"environment.{abi.ToLowerInvariant ()}");
string asmFilePath = $"{baseAsmFilePath}.s";
var asmgen = new ApplicationConfigNativeAssemblyGenerator(asmTargetProvider, baseAsmFilePath, environmentVariables, systemProperties)
{
IsBundledApp = IsBundledApplication,
UsesMonoAOT = usesMonoAOT,
UsesMonoLLVM = EnableLLVM,
UsesAssemblyPreload = usesAssemblyPreload,
MonoAOTMode = aotMode.ToString().ToLowerInvariant(),
AndroidPackageName = AndroidPackageName,
BrokenExceptionTransitions = brokenExceptionTransitions,
PackageNamingPolicy = pnp,
BoundExceptionType = boundExceptionType,
InstantRunEnabled = InstantRunEnabled,
JniAddNativeMethodRegistrationAttributePresent = appConfState != null ? appConfState.JniAddNativeMethodRegistrationAttributePresent : false,
};
using (var sw = MemoryStreamPool.Shared.CreateStreamWriter()) {
asmgen.Write(sw);
sw.Flush();
Files.CopyIfStreamChanged(sw.BaseStream, asmFilePath);
}
}
void AddEnvironmentVariable(string name, string value)
{
if (Char.IsUpper(name [0]) || !Char.IsLetter(name [0]))
{
environmentVariables [ValidAssemblerString(name)] = ValidAssemblerString(value);
}
else
{
systemProperties [ValidAssemblerString(name)] = ValidAssemblerString(value);
}
}
void AddEnvironmentVariableLine(string l)
{
string line = l?.Trim();
if (String.IsNullOrEmpty(line) || line [0] == '#')
{
return;
}
string[] nv = line.Split(new char[] { '=' }, 2);
AddEnvironmentVariable(nv[0].Trim(), nv.Length < 2 ? String.Empty : nv[1].Trim());
}
string ValidAssemblerString(string s)
{
return(s.Replace("\"", "\\\""));
}
}