2 * This file is part of the GROMACS molecular simulation package.
4 * Copyright (c) 2014, by the GROMACS development team, led by
5 * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
6 * and including many others, as listed in the AUTHORS file in the
7 * top-level source directory and at http://www.gromacs.org.
9 * GROMACS is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public License
11 * as published by the Free Software Foundation; either version 2.1
12 * of the License, or (at your option) any later version.
14 * GROMACS is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with GROMACS; if not, see
21 * http://www.gnu.org/licenses, or write to the Free Software Foundation,
22 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24 * If you want to redistribute modifications to GROMACS, please
25 * consider that scientific software is very special. Version
26 * control is crucial - bugs must be traceable. We will be happy to
27 * consider code for inclusion in the official distribution, but
28 * derived work must not be called official GROMACS. Details are found
29 * in the README & COPYING files - if they are missing, get the
30 * official version at http://www.gromacs.org.
32 * To help us fund GROMACS development, we humbly ask that you cite
33 * the research papers on the package. Check out http://www.gromacs.org.
37 * Implements gmx::FileNameOptionManager.
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
40 * \ingroup module_options
42 #include "filenameoptionmanager.h"
48 #include "gromacs/fileio/filenm.h"
49 #include "gromacs/options/basicoptions.h"
50 #include "gromacs/options/filenameoption.h"
51 #include "gromacs/options/options.h"
52 #include "gromacs/utility/arrayref.h"
53 #include "gromacs/utility/exceptions.h"
54 #include "gromacs/utility/file.h"
55 #include "gromacs/utility/path.h"
56 #include "gromacs/utility/stringutil.h"
64 //! Extensions that are recognized as compressed files.
65 const char *const c_compressedExtensions[] =
68 /********************************************************************
73 * Adds an extension to \p prefix if it results in an existing file.
75 * Tries to add each extension for this file type to \p prefix and
76 * checks whether this results in an existing file.
77 * The first match is returned.
78 * Returns an empty string if no existing file is found.
80 std::string findExistingExtension(const std::string &prefix,
81 const FileNameOptionInfo &option)
83 ConstArrayRef<int> types = option.fileTypes();
84 ConstArrayRef<int>::const_iterator i;
85 for (i = types.begin(); i != types.end(); ++i)
87 std::string testFilename(prefix + ftp2ext_with_dot(*i));
88 if (File::exists(testFilename))
98 /********************************************************************
99 * FileNameOptionManager::Impl
103 * Private implemention class for FileNameOptionManager.
105 * \ingroup module_options
107 class FileNameOptionManager::Impl
110 Impl() : bInputCheckingDisabled_(false) {}
112 //! Global default file name, if set.
113 std::string defaultFileName_;
114 //! Whether input option processing has been disabled.
115 bool bInputCheckingDisabled_;
118 /********************************************************************
119 * FileNameOptionManager
122 FileNameOptionManager::FileNameOptionManager()
127 FileNameOptionManager::~FileNameOptionManager()
131 void FileNameOptionManager::disableInputOptionChecking(bool bDisable)
133 impl_->bInputCheckingDisabled_ = bDisable;
136 void FileNameOptionManager::addDefaultFileNameOption(
137 Options *options, const char *name)
140 StringOption(name).store(&impl_->defaultFileName_)
141 .description("Set the default filename for all file options"));
144 std::string FileNameOptionManager::completeFileName(
145 const std::string &value, const FileNameOptionInfo &option)
147 const bool bInput = option.isInputFile() || option.isInputOutputFile();
148 // Currently, directory options are simple, and don't need any
149 // special processing.
150 // TODO: Consider splitting them into a separate DirectoryOption.
151 if (option.isDirectoryOption())
153 if (!impl_->bInputCheckingDisabled_ && bInput && !Directory::exists(value))
156 = formatString("Directory '%s' does not exist or is not accessible.",
158 // TODO: Get actual errno value from the attempt to open the file
159 // to provide better feedback to the user.
160 GMX_THROW(InvalidInputError(message));
164 const int fileType = fn2ftp(value.c_str());
165 if (bInput && !impl_->bInputCheckingDisabled_)
167 if (fileType == efNR && File::exists(value))
169 ConstArrayRef<const char *> compressedExtensions(c_compressedExtensions);
170 ConstArrayRef<const char *>::const_iterator ext;
171 for (ext = compressedExtensions.begin(); ext != compressedExtensions.end(); ++ext)
173 if (endsWith(value, *ext))
175 std::string newValue = value.substr(0, value.length() - std::strlen(*ext));
176 if (option.isValidType(fn2ftp(newValue.c_str())))
182 return std::string();
186 // VMD plugins may be able to read the file.
187 if (option.isInputFile() && option.isTrajectoryOption())
192 else if (fileType == efNR)
194 std::string processedValue = findExistingExtension(value, option);
195 if (!processedValue.empty())
197 return processedValue;
199 if (option.isLibraryFile())
201 // TODO: Treat also library files here.
202 return value + option.defaultExtension();
207 = formatString("File '%s' does not exist or is not accessible.\n"
208 "The following extensions were tried to complete the file name:\n %s",
209 value.c_str(), joinStrings(option.extensions(), ", ").c_str());
210 GMX_THROW(InvalidInputError(message));
213 else if (option.isValidType(fileType))
215 if (option.isLibraryFile())
217 // TODO: Treat also library files.
219 else if (!File::exists(value))
222 = formatString("File '%s' does not exist or is not accessible.",
224 // TODO: Get actual errno value from the attempt to open the file
225 // to provide better feedback to the user.
226 GMX_THROW(InvalidInputError(message));
231 else // Not an input file
233 if (fileType == efNR)
235 return value + option.defaultExtension();
237 else if (option.isValidType(fileType))
242 return std::string();
245 std::string FileNameOptionManager::completeDefaultFileName(
246 const std::string &prefix, const FileNameOptionInfo &option)
248 if (option.isDirectoryOption() || impl_->bInputCheckingDisabled_)
250 return std::string();
252 const bool bInput = option.isInputFile() || option.isInputOutputFile();
253 const std::string realPrefix
254 = !impl_->defaultFileName_.empty() ? impl_->defaultFileName_ : prefix;
257 std::string completedName = findExistingExtension(realPrefix, option);
258 if (!completedName.empty())
260 return completedName;
262 if (option.isLibraryFile())
264 // TODO: Treat also library files here.
265 return realPrefix + option.defaultExtension();
267 else if (option.isSet())
270 = formatString("No file name was provided, and the default file "
271 "'%s' does not exist or is not accessible.\n"
272 "The following extensions were tried to complete the file name:\n %s",
273 prefix.c_str(), joinStrings(option.extensions(), ", ").c_str());
274 GMX_THROW(InvalidInputError(message));
276 else if (option.isRequired())
279 = formatString("Required option was not provided, and the default file "
280 "'%s' does not exist or is not accessible.\n"
281 "The following extensions were tried to complete the file name:\n %s",
282 prefix.c_str(), joinStrings(option.extensions(), ", ").c_str());
283 GMX_THROW(InvalidInputError(message));
285 // We get here with the legacy optional behavior.
287 return realPrefix + option.defaultExtension();