async Task <IEnumerable <SearchResult> > SearchRepoAsync(GitHubRepo repo, bool handleRenamedRepos = true)
{
object operation = null;
try
{
List <SearchResult> ret = new List <SearchResult>();
if (_storage.IsNotFound(repo.Owner, repo.Name))
{
_logger.Verbose("{Repo} previously not found, skipping", repo.Owner + "/" + repo.Name);
return(Enumerable.Empty <SearchResult>());
}
if (_storage.HasRepoResults(repo.Owner, repo.Name))
{
_logger.Verbose("{Repo} already downloaded", repo.Owner + "/" + repo.Name);
ret = _storage.GetRepoResults(repo.Owner, repo.Name).ToList();
}
else
{
var request = new SearchCodeRequest()
{
FileName = "project.json",
};
request.Repos.Add(repo.Owner, repo.Name);
int totalResultsReturned = 0;
while (true)
{
if (_cancelToken.IsCancellationRequested)
{
return(Enumerable.Empty <SearchResult>());
}
operation = new { Operation = "Search", Repo = repo.Owner + "/" + repo.Name, Page = request.Page };
SearchCodeResult result;
ApiValidationException validationException = null;
ExceptionDispatchInfo validationExceptionDispatchInfo = null;
result = await
_searchThrottler.RunAsync <SearchCodeResult>(
async() =>
{
// Do a try/catch inside here so that renamed repos don't get logged as failures by the throttler
try
{
return(await _client.Search.SearchCode(request));
}
catch (ApiValidationException ex) when(handleRenamedRepos)
{
validationException = ex;
validationExceptionDispatchInfo = ExceptionDispatchInfo.Capture(ex);
return(null);
}
},
operation
);
if (result == null && validationException != null)
{
_logger.Debug(validationException, "Api validation exception for {Operation}, checking for renamed repo", operation);
var renameOperation = new { Operation = "RenameCheck", Repo = repo.Owner + "/" + repo.Name };
var potentiallyRenamedRepo = await _throttler.RunAsync <Repository>(
async() =>
{
try
{
return(await _client.Repository.Get(repo.Owner, repo.Name));
}
catch (NotFoundException)
{
return(null);
}
},
renameOperation
);
if (potentiallyRenamedRepo == null)
{
_logger.Information("Repo {Repo} not found", renameOperation.Repo);
_storage.SaveNotFound(repo.Owner, repo.Name, true);
return(Enumerable.Empty <SearchResult>());
}
if (potentiallyRenamedRepo.Owner.Login == repo.Owner && potentiallyRenamedRepo.Name == repo.Name)
{
_logger.Error("Repo was not renamed, Api validation must have failed for some other reason for {Operation}", operation);
validationExceptionDispatchInfo.Throw();
}
var newRepo = repo.Clone();
newRepo.Owner = potentiallyRenamedRepo.Owner.Login;
newRepo.Name = potentiallyRenamedRepo.Name;
_logger.Information("Repo {OldRepo} has been renamed to {Repo}", renameOperation.Repo, newRepo.Owner + "/" + newRepo.Name);
_storage.SaveRenamedRepo(repo.Owner, repo.Name, newRepo);
return(await SearchRepoAsync(newRepo, false));
}
foreach (var item in result.Items)
{
string destFile = _storage.GetFilePath(repo.Owner, repo.Name, item.Path);
if (Path.GetFileName(destFile).Equals("project.json", StringComparison.OrdinalIgnoreCase))
{
ret.Add(new SearchResult(item));
}
else
{
_logger.Information("{Path} was not a project.json file in {Repo}, ignoring", item.Path, repo.Owner + "/" + repo.Name);
}
}
if (result.IncompleteResults)
{
_logger.Error("Incomplete search results for {Repo}", repo.Owner + "/" + repo.Name);
break;
}
totalResultsReturned += result.Items.Count;
if (totalResultsReturned >= result.TotalCount)
{
break;
}
else
{
request.Page += 1;
}
}
_storage.RecordRepoResults(repo.Owner, repo.Name, ret);
_logger.Information("Completed searching repo {Repo}", repo.Owner + "/" + repo.Name);
}
return(ret);
}
catch (Exception ex)
{
_logger.Error(ex, "{Operation} failed", operation);
return(Enumerable.Empty <SearchResult>());
}
}
// TODO:
// - Frameworks that are being targeted in each project.json
void Analyze()
{
HashSet <string> microsoftOrgs = new HashSet <string>()
{
"dotnet",
"aspnet",
"xamarin",
"Microsoft",
"Windows-Readiness",
"NuGet",
"NuGetArchive",
"Microsoft-Build-2016",
};
int totalRepos = 0;
int totalReposSearched = 0;
int notFoundRepos = 0;
int remainingRepos = 0;
int totalResults = 0;
int downloadedFiles = 0;
int remainingFiles = 0;
Dictionary <string, int> ownerCounts = new Dictionary <string, int>();
using (var sw = new StreamWriter("stats.txt"))
using (var propertiesWriter = new StreamWriter("properties.txt"))
{
sw.WriteLine("Owner\tRepo name\tPath\tIsMicrosoftRepo\tFrameworkCount\tTopLevelDependencies\tFrameworkSpecificDependencies\t" + string.Join("\t", ProjectJsonAnalysis.PropertyNames) + "\tParsing error");
propertiesWriter.WriteLine("Owner\tRepo name\tPath\tIsMicrosoftRepo\tProperty Name\tProperty Path\tFramework\tValue");
foreach (var repo in _storage.GetAllRepos())
{
totalRepos++;
if (_storage.HasRepoResults(repo.Owner, repo.Name))
{
totalReposSearched++;
foreach (var result in _storage.GetRepoResults(repo.Owner, repo.Name))
{
if (ownerCounts.ContainsKey(repo.Owner))
{
ownerCounts[repo.Owner]++;
}
else
{
ownerCounts[repo.Owner] = 1;
}
totalResults++;
if (_storage.HasFile(repo.Owner, repo.Name, result.ResultPath))
{
downloadedFiles++;
string filePath = _storage.GetFilePath(repo.Owner, repo.Name, result.ResultPath);
var json = File.ReadAllText(filePath);
try
{
var analysis = ProjectJsonAnalysis.Analyze(json);
sw.Write(string.Join("\t", repo.Owner, repo.Name, result.ResultPath,
microsoftOrgs.Contains(repo.Owner) ? "Yes" : "No",
analysis.Frameworks.Count, analysis.TopLevelDependencies, analysis.FrameworkSpecificDependencies));
sw.Write("\t");
sw.Write(string.Join("\t", ProjectJsonAnalysis.PropertyNames.Select(pn => analysis.PropertiesDefined.Contains(pn) ? "Yes" : "No")));
sw.Write("\t" + analysis.ParsingError);
sw.WriteLine();
foreach (var interestingValue in analysis.InterestingValues)
{
propertiesWriter.WriteLine(string.Join("\t",
repo.Owner, repo.Name, result.ResultPath,
microsoftOrgs.Contains(repo.Owner) ? "Yes" : "No",
interestingValue.Name, interestingValue.Path, interestingValue.Framework, interestingValue.Value));
}
}
catch (Exception ex)
{
_logger.Error(ex, "Error parsing {Path} in {Repo}", result.ResultPath, repo.Owner + "/" + repo.Name);
}
}
else
{
remainingFiles++;
}
}
}
else if (_storage.IsNotFound(repo.Owner, repo.Name))
{
notFoundRepos++;
}
else
{
remainingRepos++;
}
}
}
Console.WriteLine($"Total repos: {totalRepos}");
Console.WriteLine($"Repos searched: {totalReposSearched}");
Console.WriteLine($"Not found repos: {notFoundRepos}");
Console.WriteLine($"Remaining repos: {remainingRepos}");
Console.WriteLine($"Total results: {totalResults}");
Console.WriteLine($"Results downloaded: {downloadedFiles}");
Console.WriteLine($"Remaining files: {remainingFiles}");
Console.WriteLine();
foreach (var kvp in ownerCounts.OrderByDescending(kvp => kvp.Value).Take(20))
{
Console.WriteLine($"{kvp.Key}\t{kvp.Value}");
}
}