/// <summary>
/// Creates a new interpreter factory with the specified options. This
/// interpreter always includes a cached completion database.
/// </summary>
public static IPythonInterpreterFactory CreateInterpreterFactory(InterpreterConfiguration configuration, InterpreterFactoryCreationOptions options = null)
{
options = options?.Clone() ?? new InterpreterFactoryCreationOptions();
if (string.IsNullOrEmpty(options.DatabasePath))
{
options.DatabasePath = Path.Combine(
PythonTypeDatabase.CompletionDatabasePath,
GetRelativePathForConfigurationId(configuration.Id)
);
}
if (options.NoDatabase)
{
// Use the (currenty experimental) non-database backed factory
var fact = new Ast.AstPythonInterpreterFactory(configuration, options);
return(fact);
}
else
{
// Use the database-backed factory
var fact = new CPythonInterpreterFactory(configuration, options);
if (options.WatchFileSystem)
{
fact.BeginRefreshIsCurrent();
}
return(fact);
}
}
private async Task <IReadOnlyDictionary <string, string> > GetUserSearchPathPackagesAsync(CancellationToken cancellationToken)
{
_log?.Log(TraceLevel.Verbose, "GetUserSearchPathPackagesAsync");
var ussp = _userSearchPathPackages;
if (ussp == null)
{
IReadOnlyList <string> usp;
lock (_userSearchPathsLock) {
usp = _userSearchPaths;
ussp = _userSearchPathPackages;
}
if (ussp != null || usp == null || !usp.Any())
{
return(ussp);
}
_log?.Log(TraceLevel.Verbose, "GetImportableModulesAsync");
var requireInitPy = ModulePath.PythonVersionRequiresInitPyFiles(_factory.Configuration.Version);
ussp = await AstPythonInterpreterFactory.GetImportableModulesAsync(usp, requireInitPy, cancellationToken);
lock (_userSearchPathsLock) {
if (_userSearchPathPackages == null)
{
_userSearchPathPackages = ussp;
}
else
{
ussp = _userSearchPathPackages;
}
}
}
_log?.Log(TraceLevel.Verbose, "GetUserSearchPathPackagesAsync", ussp.Keys.Cast <object>().ToArray());
return(ussp);
}
public void Imported(IModuleContext context)
{
if (_scraped)
{
return;
}
_scraped = true;
var interp = context as AstPythonInterpreter;
var fact = interp?.Factory;
if (fact == null || !File.Exists(fact.Configuration.InterpreterPath))
{
return;
}
ModulePath mp = AstPythonInterpreterFactory.FindModule(fact, _filePath);
if (string.IsNullOrEmpty(mp.FullName))
{
return;
}
var sm = PythonToolsInstallPath.TryGetFile("scrape_module.py", GetType().Assembly);
if (!File.Exists(sm))
{
return;
}
Stream code = null;
using (var p = ProcessOutput.RunHiddenAndCapture(
fact.Configuration.InterpreterPath, "-E", sm, mp.LibraryPath, mp.ModuleName
)) {
p.Wait();
if (p.ExitCode == 0)
{
var ms = new MemoryStream();
code = ms;
using (var sw = new StreamWriter(ms, Encoding.UTF8, 4096, true)) {
foreach (var line in p.StandardOutputLines)
{
sw.WriteLine(line);
}
}
}
}
if (code == null)
{
return;
}
PythonAst ast;
code.Seek(0, SeekOrigin.Begin);
using (var sr = new StreamReader(code, Encoding.UTF8))
using (var parser = Parser.CreateParser(sr, fact.GetLanguageVersion())) {
ast = parser.ParseFile();
}
lock (_members) {
var walker = new AstAnalysisWalker(interp, ast, this, _filePath, _members, false);
ast.Walk(walker);
}
}