/// <summary>
/// Attempts to load the specified project if it hasn't already been loaded.
/// </summary>
/// <param name="path">The path to the project to load.</param>
/// <param name="toolsVersion">The ToolsVersion to use when loading the project.</param>
/// <param name="projectCollection">The <see cref="ProjectCollection"/> to load the project into.</param>
/// <param name="globalProperties">The <see cref="IDictionary{String,String}" /> to use when evaluating the project.</param>
/// <param name="project">Contains the loaded <see cref="Project"/> if one was loaded.</param>
/// <returns><code>true</code> if the project was loaded, otherwise <code>false</code>.</returns>
private bool TryLoadProject(string path, string toolsVersion, ProjectCollection projectCollection, IDictionary <string, string> globalProperties, out Project project)
{
project = null;
bool shouldLoadProject;
string fullPath = path.ToFullPathInCorrectCase();
lock (_loadedProjects)
{
shouldLoadProject = _loadedProjects.Add(fullPath);
}
if (!shouldLoadProject)
{
return(false);
}
long now = DateTime.Now.Ticks;
try
{
project = new Project(fullPath, globalProperties, toolsVersion, projectCollection, DefaultProjectLoadSettings);
ProjectLoaderFactory.LogProjectStartedEvent(_logger, project.CreateProjectInstance(ProjectInstanceSettings.ImmutableWithFastItemLookup, ProjectLoaderFactory.SharedEvaluationContext));
}
catch (InvalidProjectFileException e)
{
_logger.LogError(e.Message, e.ErrorCode, e.ProjectFile, e.LineNumber, e.ColumnNumber);
return(false);
}
catch (Exception e)
{
_logger.LogError(message: e.ToString());
return(false);
}
if (CollectStats)
{
Statistics.TryAddProjectLoadTime(path, TimeSpan.FromTicks(DateTime.Now.Ticks - now));
}
return(true);
}
private ProjectInstance CreateProjectInstance(string projectFullPath, IDictionary <string, string> globalProperties, ProjectCollection projectCollection)
{
ProjectInstance projectInstance = Project.FromFile(
projectFullPath,
new ProjectOptions
{
EvaluationContext = ProjectLoaderFactory.SharedEvaluationContext,
GlobalProperties = globalProperties,
LoadSettings = DefaultProjectLoadSettings,
ProjectCollection = projectCollection,
})
.CreateProjectInstance(
ProjectInstanceSettings.ImmutableWithFastItemLookup,
ProjectLoaderFactory.SharedEvaluationContext);
ProjectLoaderFactory.LogProjectStartedEvent(_logger, projectInstance);
return(projectInstance);
}