public override bool Execute()
{
var maxVersion = GetVersion(MaximumJdkVersion);
XATInfo jdk = XATInfo.GetKnownSystemJdkInfos(CreateLogger())
.Where(j => maxVersion != null ? j.Version <= maxVersion : true)
.Where(j => j.IncludePath.Any())
.FirstOrDefault();
if (jdk == null)
{
Log.LogError("Could not determine JAVA_HOME location. Please set JdksRoot or export the JAVA_HOME environment variable.");
return(false);
}
var rtJarPaths = new[] {
Path.Combine(Path.GetDirectoryName(jdk.JavacPath), "..", "jre", "lib", "rt.jar"),
};
var rtJarPath = rtJarPaths.FirstOrDefault(p => File.Exists(p));
JavaHomePath = jdk.HomePath;
Directory.CreateDirectory(Path.GetDirectoryName(PropertyFile.ItemSpec));
Directory.CreateDirectory(Path.GetDirectoryName(MakeFragmentFile.ItemSpec));
WritePropertyFile(jdk.JavaPath, jdk.JarPath, jdk.JavacPath, jdk.JdkJvmPath, rtJarPath, jdk.IncludePath);
WriteMakeFragmentFile(jdk.JavaPath, jdk.JarPath, jdk.JavacPath, jdk.JdkJvmPath, rtJarPath, jdk.IncludePath);
return(!Log.HasLoggedErrors);
}
internal static IEnumerable <JdkInfo> GetJdkInfos(Action <TraceLevel, string> logger)
{
JdkInfo TryGetJdkInfo(string path, string locator)
{
JdkInfo jdk = null;
try {
jdk = new JdkInfo(path, locator);
}
catch (Exception e) {
logger(TraceLevel.Warning, $"Not a valid JDK directory: `{path}`; via category: {locator}");
logger(TraceLevel.Verbose, e.ToString());
}
return(jdk);
}
IEnumerable <JdkInfo> ToJdkInfos(IEnumerable <string> paths, string locator)
{
return(paths.Select(p => TryGetJdkInfo(p, locator))
.Where(jdk => jdk != null)
.OrderByDescending(jdk => jdk, JdkInfoVersionComparer.Default));
}
return(ToJdkInfos(GetPreferredJdkPaths(), "Preferred Registry")
.Concat(ToJdkInfos(GetOpenJdkPaths(), "OpenJDK"))
.Concat(ToJdkInfos(GetOracleJdkPaths(), "Oracle JDK")));
}
internal static IEnumerable <JdkInfo> GetJdkInfos(Action <TraceLevel, string> logger)
{
JdkInfo?TryGetJdkInfo(string path, string locator)
{
JdkInfo?jdk = null;
try {
jdk = new JdkInfo(path, locator);
}
catch (Exception e) {
logger(TraceLevel.Warning, string.Format(Resources.InvalidJdkDirectory_path_locator_message, path, locator, e.Message));
logger(TraceLevel.Verbose, e.ToString());
}
return(jdk);
}
IEnumerable <JdkInfo> ToJdkInfos(IEnumerable <string> paths, string locator)
{
return(paths.Select(p => TryGetJdkInfo(p, locator))
.Where(jdk => jdk != null)
.Select(jdk => jdk !)
.OrderByDescending(jdk => jdk, JdkInfoVersionComparer.Default));
}
return(ToJdkInfos(GetPreferredJdkPaths(), "Preferred Registry")
.Concat(ToJdkInfos(GetOpenJdkPaths(), "OpenJDK"))
.Concat(ToJdkInfos(GetKnownOpenJdkPaths(), "Well-known OpenJDK paths"))
.Concat(ToJdkInfos(GetOracleJdkPaths(), "Oracle JDK"))
);
}
internal static IEnumerable <JdkInfo> GetVSAndroidJdks(Action <TraceLevel, string> logger)
{
if (!OS.IsWindows)
{
yield break;
}
var root = RegistryEx.LocalMachine;
var wows = new[] { RegistryEx.Wow64.Key32, RegistryEx.Wow64.Key64 };
var subKey = @"SOFTWARE\Microsoft\VisualStudio\Android";
var valueName = "JavaHome";
foreach (var wow in wows)
{
if (!RegistryEx.CheckRegistryKeyForExecutable(root, subKey, valueName, wow, "bin", "java.exe"))
{
continue;
}
var path = RegistryEx.GetValueString(root, subKey, valueName, wow) ?? "";
if (string.IsNullOrEmpty(path))
{
continue;
}
var jdk = JdkInfo.TryGetJdkInfo(path, logger, subKey);
if (jdk == null)
{
continue;
}
yield return(jdk);
}
}
protected static IEnumerable <JdkInfo> FromPaths(IEnumerable <string> paths, Action <TraceLevel, string> logger, string locator)
{
return(paths
.Select(p => JdkInfo.TryGetJdkInfo(p, logger, locator))
.Where(jdk => jdk != null)
.Select(jdk => jdk !));
}
static void Main(string[] args)
{
foreach (var jdk in JdkInfo.GetKnownSystemJdkInfos())
{
Console.WriteLine($"Found JDK: {jdk.HomePath}");
Console.WriteLine($" Locator: {jdk.Locator}");
}
}
static IEnumerable <JdkInfo> GetUnixPreferredJdks(Action <TraceLevel, string> logger)
{
return(GetUnixConfiguredJdkPaths(logger)
.Select(p => JdkInfo.TryGetJdkInfo(p, logger, "monodroid-config.xml"))
.Where(jdk => jdk != null)
.Select(jdk => jdk !)
.OrderByDescending(jdk => jdk, JdkInfoVersionComparer.Default));
}
static JdkInfo TryGetJdkInfo(string path, Action <TraceLevel, string> logger, string locator)
{
JdkInfo jdk = null;
try {
jdk = new JdkInfo(path, locator);
}
catch (Exception e) {
logger(TraceLevel.Warning, $"Not a valid JDK directory: `{path}`; via locator: {locator}");
logger(TraceLevel.Verbose, e.ToString());
}
return(jdk);
}
internal static IEnumerable <JdkInfo> GetOracleJdks(Action <TraceLevel, string> logger)
{
if (!OS.IsWindows)
{
yield break;
}
foreach (var path in GetOracleJdkPaths())
{
var jdk = JdkInfo.TryGetJdkInfo(path, logger, "Oracle Registry");
if (jdk == null)
{
continue;
}
yield return(jdk);
}
}
internal static IEnumerable <JdkInfo> GetPreferredJdks(Action <TraceLevel, string> logger)
{
if (OS.IsWindows)
{
var path = GetWindowsPreferredJdkPath();
var jdk = path == null ? null : JdkInfo.TryGetJdkInfo(path, logger, "Windows Registry");
if (jdk != null)
{
yield return(jdk);
}
}
foreach (var jdk in GetUnixPreferredJdks(logger))
{
yield return(jdk);
}
}
XATInfo[] GetJdkRoots()
{
XATInfo jdk = null;
try {
if (!string.IsNullOrEmpty(JdksRoot))
{
jdk = new XATInfo(JdksRoot);
}
} catch (Exception e) {
Log.LogWarning($"Could not get information about JdksRoot path `{JdksRoot}`: {e.Message}");
Log.LogMessage(MessageImportance.Low, e.ToString());
}
return(jdk == null
? Array.Empty <XATInfo>()
: new[] { jdk });
}
protected static IEnumerable <JdkInfo> GetWindowsRegistryJdks(
Action <TraceLevel, string> logger,
string parentKey,
string childKeyGlob,
string?grandChildKey,
string valueName,
string?locator = null)
{
if (!OS.IsWindows)
{
yield break;
}
var regex = ToRegex(childKeyGlob);
var paths = new List <(Version version, string path)> ();
var roots = new[] { RegistryEx.CurrentUser, RegistryEx.LocalMachine };
var wows = new[] { RegistryEx.Wow64.Key32, RegistryEx.Wow64.Key64 };
foreach (var root in roots)
{
foreach (var wow in wows)
{
foreach (var subkeyName in RegistryEx.EnumerateSubkeys(root, parentKey, wow))
{
if (!regex.Match(subkeyName).Success)
{
continue;
}
var key = $@"{parentKey}\{subkeyName}" +
(grandChildKey == null ? "" : "\\" + grandChildKey);
var path = RegistryEx.GetValueString(root, key, valueName, wow);
if (path == null)
{
continue;
}
var jdk = JdkInfo.TryGetJdkInfo(path, logger, locator ?? $"Windows Registry @ {parentKey}");
if (jdk == null)
{
continue;
}
yield return(jdk);
}
}
}
}
protected static IEnumerable <JdkInfo> GetWindowsFileSystemJdks(string pattern, Action <TraceLevel, string> logger, string?locator = null)
{
if (!OS.IsWindows)
{
yield break;
}
var roots = new List <string>()
{
// "Compatibility" with existing codebases; should probably be avoided…
Environment.ExpandEnvironmentVariables("%ProgramW6432%"),
Environment.GetFolderPath(Environment.SpecialFolder.ProgramFiles),
Environment.GetFolderPath(Environment.SpecialFolder.ProgramFilesX86),
};
foreach (var root in roots)
{
if (!Directory.Exists(root))
{
continue;
}
IEnumerable <string> homes;
try {
homes = Directory.EnumerateDirectories(root, pattern);
}
catch (IOException) {
continue;
}
foreach (var home in homes)
{
if (!File.Exists(Path.Combine(home, "bin", "java.exe")))
{
continue;
}
var loc = locator ?? $"{pattern} via {root}";
var jdk = JdkInfo.TryGetJdkInfo(home, logger, loc);
if (jdk == null)
{
continue;
}
yield return(jdk);
}
}
}
protected override string?GetJavaSdkPath()
{
return(JdkInfo.GetKnownSystemJdkInfos(Logger).FirstOrDefault()?.HomePath);
}
IEnumerable <string> GetJavaSdkPaths()
{
return(JdkInfo.GetKnownSystemJdkInfos(Logger)
.Select(jdk => jdk.HomePath));
}