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/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying
file LICENSE.rst or https://cmake.org/licensing for details. */
#include "cmCTestEmptyBinaryDirectoryCommand.h"
#include "cmsys/Directory.hxx"
#include "cmExecutionStatus.h"
#include "cmMakefile.h"
#include "cmMessageType.h"
#include "cmMessenger.h"
#include "cmStringAlgorithms.h"
#include "cmSystemTools.h"
namespace {
// Try to remove the binary directory once
cmsys::Status TryToRemoveBinaryDirectoryOnce(std::string const& directoryPath)
{
cmsys::Directory directory;
directory.Load(directoryPath);
// Make sure that CMakeCache.txt is deleted last.
for (unsigned long i = 0; i < directory.GetNumberOfFiles(); ++i) {
std::string path = directory.GetFile(i);
if (path == "." || path == ".." || path == "CMakeCache.txt") {
continue;
}
std::string fullPath = cmStrCat(directoryPath, '/', path);
bool isDirectory = cmSystemTools::FileIsDirectory(fullPath) &&
!cmSystemTools::FileIsSymlink(fullPath);
cmsys::Status status;
if (isDirectory) {
status = cmSystemTools::RemoveADirectory(fullPath);
} else {
status = cmSystemTools::RemoveFile(fullPath);
}
if (!status) {
return status;
}
}
return cmSystemTools::RemoveADirectory(directoryPath);
}
/*
* Empty Binary Directory
*/
bool EmptyBinaryDirectory(std::string const& sname, std::string& err)
{
// try to avoid deleting root
if (sname.size() < 2) {
err = "path too short";
return false;
}
// consider non existing target directory a success
if (!cmSystemTools::FileExists(sname)) {
return true;
}
// try to avoid deleting directories that we shouldn't
std::string check = cmStrCat(sname, "/CMakeCache.txt");
if (!cmSystemTools::FileExists(check)) {
err = "path does not contain an existing CMakeCache.txt file";
return false;
}
cmsys::Status status;
for (int i = 0; i < 5; ++i) {
status = TryToRemoveBinaryDirectoryOnce(sname);
if (status) {
return true;
}
cmSystemTools::Delay(100);
}
err = status.GetString();
return false;
}
} // namespace
bool cmCTestEmptyBinaryDirectoryCommand(std::vector<std::string> const& args,
cmExecutionStatus& status)
{
if (args.size() != 1) {
status.SetError("called with incorrect number of arguments");
return false;
}
std::string err;
if (!EmptyBinaryDirectory(args[0], err)) {
cmMakefile& mf = status.GetMakefile();
mf.GetMessenger()->DisplayMessage(
MessageType::FATAL_ERROR,
cmStrCat("Did not remove the binary directory:\n ", args[0],
"\nbecause:\n ", err),
mf.GetBacktrace());
return true;
}
return true;
}
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