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/**
* Arara, the cool TeX automation tool
* Copyright (c) 2012 -- 2019, Paulo Roberto Massa Cereda
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the project's author nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
* WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
package com.github.cereda.arara.utils;
import com.github.cereda.arara.Arara;
import com.github.cereda.arara.controller.LanguageController;
import com.github.cereda.arara.model.AraraException;
import com.github.cereda.arara.model.FileType;
import com.github.cereda.arara.model.FileTypeResource;
import com.github.cereda.arara.model.Messages;
import com.github.cereda.arara.model.Resource;
import java.io.File;
import java.io.FileReader;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.collections4.Predicate;
import org.apache.commons.lang.SystemUtils;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.constructor.Constructor;
import org.yaml.snakeyaml.error.MarkedYAMLException;
import org.yaml.snakeyaml.nodes.Tag;
import org.yaml.snakeyaml.representer.Representer;
/**
* Implements configuration utilitary methods.
* @author Paulo Roberto Massa Cereda
* @version 4.0
* @since 4.0
*/
public class ConfigurationUtils {
// the application messages obtained from the
// language controller
private static final LanguageController messages =
LanguageController.getInstance();
/**
* Gets the list of default file types provided by nightingale, in order.
* @return The list of default file types, in order.
* @throws AraraException Something wrong happened, to be caught in the
* higher levels.
*/
public static List<FileType> getDefaultFileTypes() throws AraraException {
return Arrays.asList(
new FileType("tex"),
new FileType("dtx"),
new FileType("ltx"),
new FileType("drv"),
new FileType("ins")
);
}
/**
* Gets the configuration file located at the user home directory, if any.
* @return The file reference to the external configuration, if any.
*/
public static File getConfigFile() {
List<String> names = Arrays.asList(
".araraconfig.yaml",
"araraconfig.yaml",
".arararc.yaml",
"arararc.yaml"
);
// look for configuration files in the user's working directory first
for (String name : names) {
String path = CommonUtils.buildPath(SystemUtils.USER_DIR, name);
File file = new File(path);
if (file.exists()) {
return file;
}
}
// if no configuration files are found in the user's working directory,
// try to look up in a global directory, that is, the user home
for (String name : names) {
String path = CommonUtils.buildPath(SystemUtils.USER_HOME, name);
File file = new File(path);
if (file.exists()) {
return file;
}
}
return null;
}
/**
* Validates the configuration file.
* @param file The configuration file.
* @return The configuration file as a resource.
* @throws AraraException Something wrong happened, to be caught in the
* higher levels.
*/
public static Resource validateConfiguration(File file)
throws AraraException {
Representer representer = new Representer();
representer.addClassTag(Resource.class, new Tag("!config"));
Yaml yaml = new Yaml(new Constructor(Resource.class), representer);
try {
Resource resource = yaml.loadAs(new FileReader(file),
Resource.class);
if (resource.getFiletypes() != null) {
List<FileTypeResource> filetypes = resource.getFiletypes();
if (CollectionUtils.exists(filetypes,
new Predicate<FileTypeResource>() {
public boolean evaluate(FileTypeResource filetype) {
return (filetype.getExtension() == null);
}
})) {
throw new AraraException(
messages.getMessage(
Messages.ERROR_CONFIGURATION_FILETYPE_MISSING_EXTENSION
)
);
}
}
return resource;
} catch (MarkedYAMLException yamlException) {
throw new AraraException(
messages.getMessage(
Messages.ERROR_CONFIGURATION_INVALID_YAML
),
yamlException
);
} catch (Exception exception) {
throw new AraraException(
messages.getMessage(
Messages.ERROR_CONFIGURATION_GENERIC_ERROR
)
);
}
}
/**
* Normalize a list of rule paths, removing all duplicates.
* @param paths The list of rule paths.
* @return A list of normalized paths, without duplicates.
* @throws AraraException Something wrong happened, to be caught in the
* higher levels.
*/
public static List<String> normalizePaths(List<String> paths)
throws AraraException {
paths.add(CommonUtils.buildPath(getApplicationPath(), "rules"));
Set<String> set = new LinkedHashSet<String>(paths);
List<String> result = new ArrayList<String>(set);
return result;
}
/**
* Normalize a list of file types, removing all duplicates.
* @param types The list of file types.
* @return A list of normalized file types, without duplicates.
* @throws AraraException Something wrong happened, to be caught in the
* higher levels.
*/
public static List<FileType> normalizeFileTypes(List<FileType> types)
throws AraraException {
types.addAll(getDefaultFileTypes());
Set<FileType> set = new LinkedHashSet<FileType>(types);
List<FileType> result = new ArrayList<FileType>(set);
return result;
}
/**
* Gets the canonical absolute application path.
* @return The string representation of the canonical absolute application
* path.
* @throws AraraException Something wrong happened, to be caught in the
* higher levels.
*/
public static String getApplicationPath() throws AraraException {
try {
String path = Arara.class.getProtectionDomain().
getCodeSource().getLocation().getPath();
path = URLDecoder.decode(path, "UTF-8");
path = new File(path).getParentFile().getPath();
return path;
} catch (UnsupportedEncodingException exception) {
throw new AraraException(
messages.getMessage(
Messages.ERROR_GETAPPLICATIONPATH_ENCODING_EXCEPTION
),
exception
);
}
}
/**
* Cleans the file name to avoid invalid entries.
* @param name The file name.
* @return A cleaned file name.
*/
public static String cleanFileName(String name) {
String result = (new File(name)).getName().trim();
if (CommonUtils.checkEmptyString(result)) {
return "arara";
} else {
return result.trim();
}
}
}
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