FilePath projectFromDirectory(const FilePath& directoryPath)
{
// first use simple heuristic of a case sentitive match between
// directory name and project file name
FilePath projectFile = directoryPath.childPath(
directoryPath.filename() + ".Rproj");
if (projectFile.exists())
return projectFile;
// didn't satisfy it with simple check so do scan of directory
std::vector<FilePath> children;
Error error = directoryPath.children(&children);
if (error)
{
LOG_ERROR(error);
return FilePath();
}
// build a vector of children with .rproj extensions. at the same
// time allow for a case insensitive match with dir name and return that
std::string projFileLower = string_utils::toLower(projectFile.filename());
std::vector<FilePath> rprojFiles;
for (std::vector<FilePath>::const_iterator it = children.begin();
it != children.end();
++it)
{
if (!it->isDirectory() && (it->extensionLowerCase() == ".rproj"))
{
if (string_utils::toLower(it->filename()) == projFileLower)
return *it;
else
rprojFiles.push_back(*it);
}
}
// if we found only one rproj file then return it
if (rprojFiles.size() == 1)
{
return rprojFiles.at(0);
}
// more than one, take most recent
else if (rprojFiles.size() > 1 )
{
projectFile = rprojFiles.at(0);
for (std::vector<FilePath>::const_iterator it = rprojFiles.begin();
it != rprojFiles.end();
++it)
{
if (it->lastWriteTime() > projectFile.lastWriteTime())
projectFile = *it;
}
return projectFile;
}
// didn't find one
else
{
return FilePath();
}
}
Error enqueueChunkOutput(
const std::string& docPath, const std::string& docId,
const std::string& chunkId, const std::string& contextId)
{
FilePath outputPath = chunkOutputPath(docPath, docId, chunkId, contextId);
// scan the directory for output
std::vector<FilePath> outputPaths;
Error error = outputPath.children(&outputPaths);
// non-fatal: if we can't list we'll safely return an empty array
if (error)
LOG_ERROR(error);
// arrange by filename (use FilePath's < operator)
std::sort(outputPaths.begin(), outputPaths.end());
// loop through each and build an array of the outputs
json::Array outputs;
BOOST_FOREACH(const FilePath& outputPath, outputPaths)
{
json::Object output;
// ascertain chunk output type from file extension; skip if extension
// unknown
int outputType = chunkOutputType(outputPath);
if (outputType == kChunkOutputNone)
continue;
// format/parse chunk output for client consumption
output[kChunkOutputType] = outputType;
if (outputType == kChunkOutputText)
{
json::Array consoleOutput;
error = chunkConsoleContents(outputPath, &consoleOutput);
output[kChunkOutputValue] = consoleOutput;
}
else if (outputType == kChunkOutputPlot ||
outputType == kChunkOutputHtml)
{
output[kChunkOutputValue] = kChunkOutputPath "/" + docId + "/" +
chunkId + "/" + outputPath.filename();
}
outputs.push_back(output);
}
// IN: String path
// OUT: Array<FileEntry> files
core::Error listFiles(const json::JsonRpcRequest& request,
json::JsonRpcResponse* pResponse)
{
// get path
std::string path;
bool monitor;
Error error = json::readParams(request.params, &path, &monitor);
if (error)
return error ;
// retreive list of files
FilePath targetPath = module_context::resolveAliasedPath(path) ;
std::vector<FilePath> files ;
Error listingError = targetPath.children(&files) ;
if (listingError)
return listingError ;
// sort the files by name
std::sort(files.begin(), files.end(), compareAbsolutePathNoCase);
// produce json listing
json::Array jsonFiles ;
BOOST_FOREACH( FilePath& filePath, files )
{
// files which may have been deleted after the listing or which
// are not end-user visible
if (filePath.exists() && isVisible(filePath))
{
json::Object fileObject = module_context::createFileSystemItem(filePath);
jsonFiles.push_back(fileObject) ;
}
}
// return listing
pResponse->setResult(jsonFiles) ;
// setup monitoring if requested (merely log errors so if something
// unexpected happens the user still gets the file listing)
if (monitor)
startMonitoring(targetPath.absolutePath());
// success
return Success();
}
std::vector<boost::shared_ptr<GlobalActiveSession> >
GlobalActiveSessions::list() const
{
std::vector<boost::shared_ptr<GlobalActiveSession> > sessions;
// get all active sessions for the system
FilePath activeSessionsDir = rootPath_;
if (!activeSessionsDir.exists())
return sessions; // no active sessions exist
std::vector<FilePath> sessionFiles;
Error error = activeSessionsDir.children(&sessionFiles);
if (error)
{
LOG_ERROR(error);
return sessions;
}
BOOST_FOREACH(const FilePath& sessionFile, sessionFiles)
{
sessions.push_back(boost::shared_ptr<GlobalActiveSession>(new GlobalActiveSession(sessionFile)));
}
void onDocSaved(FilePath &path)
{
Error error;
// ignore non-R Markdown saves
if (!path.hasExtensionLowerCase(".rmd"))
return;
// find cache folder (bail out if it doesn't exist)
FilePath cache = chunkCacheFolder(path, "", notebookCtxId());
if (!cache.exists())
return;
FilePath saved = chunkCacheFolder(path, "", kSavedCtx);
if (saved.exists())
{
// tidy up: remove any saved chunks that no longer exist
error = removeStaleSavedChunks(path, saved);
if (error)
LOG_ERROR(error);
}
else
{
// no saved context yet; ensure we have a place to put it
saved.ensureDirectory();
}
// move all the chunk definitions over to the saved context
std::vector<FilePath> children;
error = cache.children(&children);
if (error)
{
LOG_ERROR(error);
return;
}
BOOST_FOREACH(const FilePath source, children)
{
// compute the target path
FilePath target = saved.complete(source.filename());
if (source.filename() == kNotebookChunkDefFilename)
{
// the definitions should be copied (we always want them in both
// contexts)
error = target.removeIfExists();
if (!error)
error = source.copy(target);
}
else if (source.isDirectory())
{
// library folders should be merged and then removed, so we don't
// lose library contents
if (source.filename() == kChunkLibDir)
{
error = mergeLib(source, target);
if (!error)
error = source.remove();
}
else
{
// the chunk output folders should be moved; destroy the old copy
error = target.removeIfExists();
if (!error)
error = source.move(target);
}
}
else
{
// nothing besides the chunks.json and chunk folders should be here,
// so ignore other files/content
continue;
}
if (error)
LOG_ERROR(error);
}