cppcheck/cli/filelister.cpp

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/*
* Cppcheck - A tool for static C/C++ code analysis
* Copyright (C) 2007-2013 Daniel Marjamäki and Cppcheck team.
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*
* 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/>.
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*/
#include <cstring>
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#include <string>
#include <sstream>
#include "filelister.h"
#include "path.h"
#ifdef _WIN32
///////////////////////////////////////////////////////////////////////////////
////// This code is WIN32 systems /////////////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
#include <windows.h>
#ifndef __BORLANDC__
#include <shlwapi.h>
#endif
// 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 BOOL MyIsDirectory(const std::string& path)
{
#ifdef __BORLANDC__
return (GetFileAttributes(path.c_str()) & FILE_ATTRIBUTE_DIRECTORY);
#else
// See http://msdn.microsoft.com/en-us/library/bb773621(VS.85).aspx
return PathIsDirectoryA(path.c_str());
#endif
}
static HANDLE MyFindFirstFile(const std::string& path, LPWIN32_FIND_DATAA findData)
{
HANDLE hFind = FindFirstFileA(path.c_str(), findData);
return hFind;
}
static BOOL MyFileExists(const std::string& path)
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{
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#ifdef __BORLANDC__
DWORD fa = GetFileAttributes(path.c_str());
BOOL result = FALSE;
if (fa != INVALID_FILE_ATTRIBUTES && !(fa & FILE_ATTRIBUTE_DIRECTORY))
result = TRUE;
#else
BOOL result = PathFileExistsA(path.c_str());
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#endif
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return result;
}
void FileLister::recursiveAddFiles(std::map<std::string, std::size_t> &files, const std::string &path)
{
// oss is the search string passed into FindFirst and FindNext.
// bdir is the base directory which is used to form pathnames.
// It always has a trailing backslash available for concatenation.
std::ostringstream bdir, oss;
std::string cleanedPath = Path::toNativeSeparators(path);
oss << cleanedPath;
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if (MyIsDirectory(cleanedPath)) {
char c = cleanedPath[ cleanedPath.size()-1 ];
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switch (c) {
case '\\':
oss << '*';
bdir << cleanedPath;
break;
case '*':
bdir << cleanedPath.substr(0, cleanedPath.length() - 1);
break;
default:
oss << "\\*";
if (cleanedPath != ".")
bdir << cleanedPath << '\\';
}
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} else {
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std::string::size_type pos = cleanedPath.find_last_of('\\');
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if (std::string::npos != pos) {
bdir << cleanedPath.substr(0, pos + 1);
}
}
WIN32_FIND_DATAA ffd;
HANDLE hFind = MyFindFirstFile(oss.str(), &ffd);
if (INVALID_HANDLE_VALUE == hFind)
return;
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do {
if (ffd.cFileName[0] == '.' || ffd.cFileName[0] == '\0')
continue;
const char* ansiFfd = ffd.cFileName;
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if (strchr(ansiFfd,'?')) {
ansiFfd = ffd.cAlternateFileName;
}
std::ostringstream fname;
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fname << bdir.str() << ansiFfd;
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if ((ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0) {
// File
// If recursive is not used, accept all files given by user
if (Path::sameFileName(path, ansiFfd) || Path::acceptFile(ansiFfd)) {
const std::string nativename = Path::fromNativeSeparators(fname.str());
// Limitation: file sizes are assumed to fit in a 'size_t'
#ifdef _WIN64
files[nativename] = (static_cast<std::size_t>(ffd.nFileSizeHigh) << 32) | ffd.nFileSizeLow;
#else
files[nativename] = ffd.nFileSizeLow;
#endif
}
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} else {
// Directory
FileLister::recursiveAddFiles(files, fname.str());
}
} while (FindNextFileA(hFind, &ffd) != FALSE);
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if (INVALID_HANDLE_VALUE != hFind) {
FindClose(hFind);
}
}
bool FileLister::isDirectory(const std::string &path)
{
return (MyIsDirectory(path) != FALSE);
}
bool FileLister::fileExists(const std::string &path)
{
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return (MyFileExists(path) == TRUE);
}
#else
///////////////////////////////////////////////////////////////////////////////
////// This code is POSIX-style systems ///////////////////////////////////////
///////////////////////////////////////////////////////////////////////////////
#include <glob.h>
#include <unistd.h>
#include <stdlib.h>
#include <limits.h>
#include <sys/stat.h>
// Get absolute path. Returns empty string if path does not exist or other error.
std::string FileLister::getAbsolutePath(const std::string& path)
{
std::string absolute_path;
#ifdef PATH_MAX
char buf[PATH_MAX];
if (realpath(path.c_str(), buf) != NULL)
absolute_path = buf;
#else
char *dynamic_buf;
if ((dynamic_buf = realpath(path.c_str(), NULL)) != NULL) {
absolute_path = dynamic_buf;
free(dynamic_buf);
}
#endif
return absolute_path;
}
void FileLister::recursiveAddFiles2(std::set<std::string> &seen_paths,
std::map<std::string, std::size_t> &files,
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const std::string &path)
{
std::ostringstream oss;
oss << path;
if (path.length() > 0 && path[path.length()-1] == '/')
oss << "*";
glob_t glob_results;
glob(oss.str().c_str(), GLOB_MARK, 0, &glob_results);
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for (unsigned int i = 0; i < glob_results.gl_pathc; i++) {
const std::string filename = glob_results.gl_pathv[i];
if (filename == "." || filename == ".." || filename.length() == 0)
continue;
// Determine absolute path. Empty filename if path does not exist
const std::string absolute_path = getAbsolutePath(filename);
if (absolute_path.empty())
continue;
// Did we already process this entry?
if (seen_paths.find(absolute_path) != seen_paths.end())
continue;
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if (filename[filename.length()-1] != '/') {
// File
if (Path::sameFileName(path,filename) || Path::acceptFile(filename)) {
seen_paths.insert(absolute_path);
struct stat sb;
if (stat(absolute_path.c_str(), &sb) == 0) {
// Limitation: file sizes are assumed to fit in a 'size_t'
files[filename] = static_cast<std::size_t>(sb.st_size);
} else
files[filename] = 0;
}
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} else {
// Directory
seen_paths.insert(absolute_path);
recursiveAddFiles2(seen_paths, files, filename);
}
}
globfree(&glob_results);
}
void FileLister::recursiveAddFiles(std::map<std::string, std::size_t> &files, const std::string &path)
{
std::set<std::string> seen_paths;
recursiveAddFiles2(seen_paths, files, path);
}
bool FileLister::isDirectory(const std::string &path)
{
bool ret = false;
glob_t glob_results;
glob(path.c_str(), GLOB_MARK, 0, &glob_results);
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if (glob_results.gl_pathc == 1) {
const std::string glob_path = glob_results.gl_pathv[0];
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if (!glob_path.empty() && glob_path[glob_path.size() - 1] == '/') {
ret = true;
}
}
globfree(&glob_results);
return ret;
}
bool FileLister::fileExists(const std::string &path)
{
struct stat statinfo;
int result = stat(path.c_str(), &statinfo);
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if (result < 0) { // Todo: should check errno == ENOENT?
// File not found
return false;
}
// Check if file is regular file
if ((statinfo.st_mode & S_IFMT) == S_IFREG)
return true;
return false;
}
#endif