public void Search(RegistryKey root, InterpreterArchitecture assumedArch)
{
if (root == null)
{
return;
}
var companies = GetSubkeys(root);
foreach (var company in companies)
{
if ("PyLauncher".Equals(company, StringComparison.OrdinalIgnoreCase))
{
continue;
}
bool pythonCore = "PythonCore".Equals(company, StringComparison.OrdinalIgnoreCase);
using (var companyKey = root.OpenSubKey(company)) {
if (companyKey == null)
{
continue;
}
var companyDisplay = companyKey.GetValue("DisplayName") as string;
var companySupportUrl = companyKey.GetValue("SupportUrl") as string;
if (pythonCore)
{
companyDisplay = companyDisplay ?? PythonCoreCompanyDisplayName;
companySupportUrl = companySupportUrl ?? PythonCoreSupportUrl;
}
else
{
companyDisplay = companyDisplay ?? company;
}
var tags = GetSubkeys(companyKey);
foreach (var tag in tags)
{
using (var tagKey = companyKey.OpenSubKey(tag))
using (var installKey = tagKey?.OpenSubKey("InstallPath")) {
var config = TryReadConfiguration(company, tag, tagKey, installKey, pythonCore, assumedArch);
if (config == null)
{
continue;
}
if (_seenIds.Add(config.Id))
{
var supportUrl = tagKey.GetValue("SupportUrl") as string ?? companySupportUrl;
var info = new PythonInterpreterInformation(config, companyDisplay, companySupportUrl, supportUrl);
_info.Add(info);
}
}
}
}
}
}
/// <summary>
/// <para>Constructs a new interpreter configuration based on the
/// provided values.</para>
/// <para>No validation is performed on the parameters.</para>
/// <para>If winPath is null or empty,
/// <see cref="WindowsInterpreterPath"/> will be set to path.</para>
/// </summary>
public InterpreterConfiguration(
string id,
string description,
string prefixPath = null,
string path = null,
string winPath = "",
string pathVar = "",
InterpreterArchitecture arch = default(InterpreterArchitecture),
Version version = null
)
{
Id = id;
Description = description;
PrefixPath = prefixPath;
InterpreterPath = path;
WindowsInterpreterPath = string.IsNullOrEmpty(winPath) ? path : winPath;
PathEnvironmentVariable = pathVar;
Architecture = arch ?? InterpreterArchitecture.Unknown;
Version = version ?? new Version();
}
private InterpreterConfiguration TryReadConfiguration(
string company,
string tag,
RegistryKey tagKey,
RegistryKey installKey,
bool pythonCoreCompatibility,
InterpreterArchitecture assumedArch
)
{
if (tagKey == null || installKey == null)
{
return(null);
}
var prefixPath = installKey.GetValue(null) as string;
var exePath = installKey.GetValue("ExecutablePath") as string;
var exewPath = installKey.GetValue("WindowedExecutablePath") as string;
if (pythonCoreCompatibility && !string.IsNullOrEmpty(prefixPath))
{
if (string.IsNullOrEmpty(exePath))
{
exePath = PathUtils.GetAbsoluteFilePath(prefixPath, CPythonInterpreterFactoryConstants.ConsoleExecutable);
}
if (string.IsNullOrEmpty(exewPath))
{
exewPath = PathUtils.GetAbsoluteFilePath(prefixPath, CPythonInterpreterFactoryConstants.WindowsExecutable);
}
}
var version = tagKey.GetValue("Version") as string;
if (pythonCoreCompatibility && string.IsNullOrEmpty(version) && tag.Length >= 3)
{
version = tag.Substring(0, 3);
}
Version sysVersion;
var sysVersionString = tagKey.GetValue("SysVersion") as string;
if (pythonCoreCompatibility && string.IsNullOrEmpty(sysVersionString) && tag.Length >= 3)
{
sysVersionString = tag.Substring(0, 3);
}
if (string.IsNullOrEmpty(sysVersionString) || !Version.TryParse(sysVersionString, out sysVersion))
{
sysVersion = new Version(0, 0);
}
PythonLanguageVersion langVersion;
try {
langVersion = sysVersion.ToLanguageVersion();
} catch (InvalidOperationException) {
langVersion = PythonLanguageVersion.None;
sysVersion = new Version(0, 0);
}
InterpreterArchitecture arch;
if (!InterpreterArchitecture.TryParse(tagKey.GetValue("SysArchitecture", null) as string, out arch))
{
arch = assumedArch;
}
if (arch == InterpreterArchitecture.Unknown && File.Exists(exePath))
{
switch (NativeMethods.GetBinaryType(exePath))
{
case System.Reflection.ProcessorArchitecture.X86:
arch = InterpreterArchitecture.x86;
break;
case System.Reflection.ProcessorArchitecture.Amd64:
arch = InterpreterArchitecture.x64;
break;
}
}
if (pythonCoreCompatibility && sysVersion != null && sysVersion < new Version(3, 5) && arch == InterpreterArchitecture.x86)
{
// Older versions of CPython did not include
// "-32" in their Tag, so we will add it here
// for uniqueness.
tag += "-32";
}
var id = CPythonInterpreterFactoryConstants.GetInterpreterId(company, tag);
var description = tagKey.GetValue("DisplayName") as string;
if (string.IsNullOrEmpty(description))
{
if (pythonCoreCompatibility)
{
description = "Python {0} {1}".FormatUI(arch, version);
}
else
{
description = "{0} {1}".FormatUI(company, tag);
}
}
return(new InterpreterConfiguration(
id,
description,
prefixPath,
exePath,
exewPath,
CPythonInterpreterFactoryConstants.PathEnvironmentVariableName,
arch,
sysVersion
));
}
public void Search(RegistryKey root, InterpreterArchitecture assumedArch)
{
if (root == null)
{
return;
}
var companies = GetSubkeys(root);
if (companies == null)
{
return;
}
foreach (var company in companies)
{
if ("PyLauncher".Equals(company, StringComparison.OrdinalIgnoreCase))
{
continue;
}
bool pythonCore = PythonCoreCompany.Equals(company, StringComparison.OrdinalIgnoreCase);
using (var companyKey = root.OpenSubKey(company)) {
if (companyKey == null)
{
continue;
}
var companyDisplay = companyKey.GetValue("DisplayName") as string;
var companySupportUrl = companyKey.GetValue("SupportUrl") as string;
if (pythonCore)
{
companyDisplay = companyDisplay ?? PythonCoreCompanyDisplayName;
companySupportUrl = companySupportUrl ?? PythonCoreSupportUrl;
}
else
{
companyDisplay = companyDisplay ?? company;
}
var tags = GetSubkeys(companyKey);
if (tags == null)
{
continue;
}
foreach (var tag in tags)
{
using (var tagKey = companyKey.OpenSubKey(tag))
using (var installKey = tagKey?.OpenSubKey("InstallPath")) {
var config = TryReadConfiguration(company, tag, tagKey, installKey, pythonCore, assumedArch);
if (config == null)
{
continue;
}
if (_seenIds.Add(config.Id))
{
var supportUrl = tagKey.GetValue("SupportUrl") as string ?? companySupportUrl;
// We don't want to send people to http://python.org, even
// if that's what is in the registry, so catch and fix it.
if (!string.IsNullOrEmpty(supportUrl))
{
var url = supportUrl.TrimEnd('/');
if (url.Equals("http://www.python.org", StringComparison.OrdinalIgnoreCase) ||
url.Equals("http://python.org", StringComparison.OrdinalIgnoreCase))
{
supportUrl = PythonCoreSupportUrl;
}
}
var info = new PythonInterpreterInformation(config, companyDisplay, companySupportUrl, supportUrl);
_info.Add(info);
}
}
}
}
}
}