cppcheck/cli/filelister.cpp at main · cppcheck-opensource/cppcheck · GitHub

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* Cppcheck - A tool for static C/C++ code analysis

* This program is free software: you can redistribute it and/or modify

* it under the terms of the GNU General Public License as published by

* the Free Software Foundation, either version 3 of the License, or

* (at your option) any later version.

* This program is distributed in the hope that it will be useful,

* but WITHOUT ANY WARRANTY; without even the implied warranty of

* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

* GNU General Public License for more details.

* You should have received a copy of the GNU General Public License

* along with this program. If not, see <http://www.gnu.org/licenses/>.

#if defined(__CYGWIN__)

#define _BSD_SOURCE // required to have DT_DIR and DT_UNKNOWN

#endif

#include "filelister.h"

#include "filesettings.h"

#include "path.h"

#include "pathmatch.h"

#include "standards.h"

#include "utils.h"

#include <cstring>

#include <iostream>

#include <iterator>

#include <memory>

#ifdef _WIN32

///////////////////////////////////////////////////////////////////////////////

////// This code is WIN32 systems /////////////////////////////////////////////

///////////////////////////////////////////////////////////////////////////////

#include <windows.h>

#include <shlwapi.h>

// Here is the catch: cppcheck core is Ansi code (using char type).

// When compiling Unicode targets WinAPI automatically uses *W Unicode versions

// of called functions. Thus, we explicitly call *A versions of the functions.

static std::string addFiles2(std::list<FileWithDetails>&files, const std::string &path, const std::set<std::string> &extra, bool recursive, const PathMatch& ignored, bool debug = false)

{

const std::string cleanedPath = Path::toNativeSeparators(path);

// basedir is the base directory which is used to form pathnames.

// It always has a trailing backslash available for concatenation.

std::string basedir;

// searchPattern is the search string passed into FindFirst and FindNext.

std::string searchPattern = cleanedPath;

// The user wants to check all files in a dir

const bool checkAllFilesInDir = Path::isDirectory(cleanedPath);

if (checkAllFilesInDir) {

const char c = cleanedPath.back();

switch (c) {

case '\\':

searchPattern += '*';

basedir = cleanedPath;

break;

case '*':

basedir = cleanedPath.substr(0, cleanedPath.length() - 1);

break;

default:

searchPattern += "\\*";

if (cleanedPath != ".")

basedir = cleanedPath + '\\';

}

} else {

const std::string::size_type pos = cleanedPath.find_last_of('\\');

if (std::string::npos != pos) {

basedir = cleanedPath.substr(0, pos + 1);

}

WIN32_FIND_DATAA ffd;

HANDLE hFind = FindFirstFileA(searchPattern.c_str(), &ffd);

if (INVALID_HANDLE_VALUE == hFind) {

const DWORD err = GetLastError();

if (err == ERROR_FILE_NOT_FOUND || // the pattern did not match anything

err == ERROR_PATH_NOT_FOUND) // the given search path does not exist

{

return "";

}

return "finding files failed. Search pattern: '" + searchPattern + "'. (error: " + std::to_string(err) + ")";

}

std::unique_ptr<void, decltype(&FindClose)> hFind_deleter(hFind, FindClose);

do {

if (ffd.cFileName[0] != '.' && ffd.cFileName[0] != '\0')

{

const char* ansiFfd = ffd.cFileName;

if (std::strchr(ansiFfd,'?')) {

ansiFfd = ffd.cAlternateFileName;

}

const std::string fname(basedir + ansiFfd);

if ((ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0) {

// File

Standards::Language lang = Standards::Language::None;

if ((!checkAllFilesInDir || Path::acceptFile(fname, extra, &lang))) {

if (!ignored.match(fname)) {

std::string nativename = Path::fromNativeSeparators(fname);

// Limitation: file sizes are assumed to fit in a 'size_t'

#ifdef _WIN64

const std::size_t filesize = (static_cast<std::size_t>(ffd.nFileSizeHigh) << 32) | ffd.nFileSizeLow;

#else

const std::size_t filesize = ffd.nFileSizeLow;

#endif

files.emplace_back(std::move(nativename), lang, filesize);

}

else if (debug)

{

std::cout << "ignored path: " << fname << std::endl;

}

} else {

// Directory

if (recursive) {

if (!ignored.match(fname, PathMatch::Filemode::directory)) {

std::list<FileWithDetails> filesSorted;

std::string err = addFiles2(filesSorted, fname, extra, recursive, ignored);

if (!err.empty())

return err;

// files inside directories need to be sorted as the filesystem doesn't provide a stable order

filesSorted.sort([](const FileWithDetails& a, const FileWithDetails& b) {

return a.path() < b.path();

});

files.insert(files.end(), std::make_move_iterator(filesSorted.begin()), std::make_move_iterator(filesSorted.end()));

}

else if (debug)

{

std::cout << "ignored path: " << fname << std::endl;

}

if (!FindNextFileA(hFind, &ffd)) {

const DWORD err = GetLastError();

// no more files matched

if (err != ERROR_NO_MORE_FILES)

return "failed to get next file (error: " + std::to_string(err) + ")";

break;

}

} while (true);

return "";

}

std::string FileLister::addFiles(std::list<FileWithDetails> &files, const std::string &path, const std::set<std::string> &extra, bool recursive, const PathMatch& ignored, bool debug)

{

if (path.empty())

return "no path specified";

std::list<FileWithDetails> filesSorted;

std::string err = addFiles2(filesSorted, path, extra, recursive, ignored, debug);

// files need to be sorted as the filesystems doesn't provide a stable order

filesSorted.sort([](const FileWithDetails& a, const FileWithDetails& b) {

return a.path() < b.path();

});

files.insert(files.end(), std::make_move_iterator(filesSorted.begin()), std::make_move_iterator(filesSorted.end()));

return err;

}

#else

///////////////////////////////////////////////////////////////////////////////

////// This code is POSIX-style systems ///////////////////////////////////////

///////////////////////////////////////////////////////////////////////////////

#include <dirent.h>

#include <sys/stat.h>

#include <cerrno>

struct closedir_deleter {

void operator()(DIR* d) const {

closedir(d);

}

};

static std::string addFiles2(std::list<FileWithDetails> &files,

const std::string &path,

const std::set<std::string> &extra,

bool recursive,

const PathMatch& ignored,

bool debug)

{

if (ignored.match(path))

{

if (debug)

std::cout << "ignored path: " << path << std::endl;

return "";

}

struct stat file_stat;

if (stat(path.c_str(), &file_stat) == -1)

return ""; // TODO: return error?

if ((file_stat.st_mode & S_IFMT) != S_IFDIR)

{

files.emplace_back(path, Standards::Language::None, file_stat.st_size);

return "";

}

// process directory entry

DIR * dir = opendir(path.c_str());

if (!dir) {

const int err = errno;

return "could not open directory '" + path + "' (errno: " + std::to_string(err) + ")";

}

std::unique_ptr<DIR, closedir_deleter> dir_deleter(dir);

std::string new_path = path;

new_path += '/';

while (const dirent* dir_result = readdir(dir)) {

if ((std::strcmp(dir_result->d_name, ".") == 0) ||

(std::strcmp(dir_result->d_name, "..") == 0))

continue;

new_path.erase(path.length() + 1);

new_path += dir_result->d_name;

#if defined(_DIRENT_HAVE_D_TYPE)

const bool path_is_directory = (dir_result->d_type == DT_DIR || (dir_result->d_type == DT_UNKNOWN && Path::isDirectory(new_path)));

#else

const bool path_is_directory = Path::isDirectory(new_path);

#endif

if (path_is_directory) {

if (recursive) {

if (!ignored.match(new_path, PathMatch::Filemode::directory)) {

std::string err = addFiles2(files, new_path, extra, recursive, ignored, debug);

if (!err.empty()) {

return err;

}

else if (debug)

{

std::cout << "ignored path: " << new_path << std::endl;

}

} else {

Standards::Language lang = Standards::Language::None;

if (Path::acceptFile(new_path, extra, &lang)) {

if (!ignored.match(new_path))

{

if (stat(new_path.c_str(), &file_stat) == -1) {

const int err = errno;

return "could not stat file '" + new_path + "' (errno: " + std::to_string(err) + ")";

}

files.emplace_back(new_path, lang, file_stat.st_size);

}

else if (debug)

{

std::cout << "ignored path: " << new_path << std::endl;

}

return "";

}

std::string FileLister::addFiles(std::list<FileWithDetails> &files, const std::string &path, const std::set<std::string> &extra, bool recursive, const PathMatch& ignored, bool debug)

{

if (path.empty())

return "no path specified";

std::string corrected_path = path;

if (endsWith(corrected_path, '/'))

corrected_path.erase(corrected_path.end() - 1);

std::list<FileWithDetails> filesSorted;

std::string err = addFiles2(filesSorted, corrected_path, extra, recursive, ignored, debug);

// files need to be sorted as the filesystems doesn't provide a stable order

filesSorted.sort([](const FileWithDetails& a, const FileWithDetails& b) {

return a.path() < b.path();

});

files.insert(files.end(), std::make_move_iterator(filesSorted.begin()), std::make_move_iterator(filesSorted.end()));

return err;

}

#endif

std::string FileLister::recursiveAddFiles(std::list<FileWithDetails> &files, const std::string &path, const std::set<std::string> &extra, const PathMatch& ignored, bool debug)

{

return addFiles(files, path, extra, true, ignored, debug);

}

cppcheck/cli/filelister.cpp at main · cppcheck-opensource/cppcheck · GitHub

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