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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.model;
import com.github.cereda.arara.controller.ConfigurationController;
import com.github.cereda.arara.controller.LanguageController;
import com.github.cereda.arara.controller.LoggingController;
import com.github.cereda.arara.utils.CommonUtils;
import com.github.cereda.arara.utils.DisplayUtils;
import java.util.Locale;
import java.util.Map;
import org.apache.commons.cli.CommandLine;
import org.apache.commons.cli.CommandLineParser;
import org.apache.commons.cli.DefaultParser;
import org.apache.commons.cli.HelpFormatter;
import org.apache.commons.cli.Option;
import org.apache.commons.cli.Options;
import org.apache.commons.cli.ParseException;
/**
* Implements the command line parser.
* @author Paulo Roberto Massa Cereda
* @version 4.0
* @since 4.0
*/
public class Parser {
// command line arguments to be
// processed by this parser
private final String[] arguments;
// command line options, it will
// group each option available
// in arara
private Options options;
// each option available in
// arara
private Option version;
private Option help;
private Option log;
private Option verbose;
private Option silent;
private Option dryrun;
private Option timeout;
private Option language;
private Option loops;
private Option preamble;
private Option onlyheader;
public Parser() {
this.arguments = null;
}
// the application messages obtained from the
// language controller
private static final LanguageController messages =
LanguageController.getInstance();
/**
* Constructor.
* @param arguments Array of strings representing the command line
* arguments.
*/
public Parser(String[] arguments) {
this.arguments = arguments;
}
/**
* Parses the command line arguments.
* @return A boolean value indicating if the parsing should allow the
* application to look for directives in the provided main file.
* @throws AraraException Something wrong happened, to be caught in the
* higher levels.
*/
public boolean parse() throws AraraException {
// create new instances of the
// command line options, including
// the ones that require arguments
version = new Option("V", "version", false, "");
help = new Option("h", "help", false, "");
log = new Option("l", "log", false, "");
verbose = new Option("v", "verbose", false, "");
silent = new Option("s", "silent", false, "");
dryrun = new Option("n", "dry-run", false, "");
timeout = new Option("t", "timeout", true, "");
timeout.setArgName("number");
language = new Option("L", "language", true, "");
language.setArgName("code");
loops = new Option("m", "max-loops", true, "");
loops.setArgName("number");
preamble = new Option("p", "preamble", true, "");
preamble.setArgName("name");
onlyheader = new Option("H", "header", false, "");
// add all options to the options
// group, so they are recognized
// by the command line parser
options = new Options();
options.addOption(version);
options.addOption(help);
options.addOption(log);
options.addOption(verbose);
options.addOption(silent);
options.addOption(dryrun);
options.addOption(timeout);
options.addOption(language);
options.addOption(loops);
options.addOption(preamble);
options.addOption(onlyheader);
// update all descriptions based
// on the localized messages
updateDescriptions();
// a new default command line
// parser is created and the
// arguments are parsed
CommandLineParser parser = new DefaultParser();
try {
CommandLine line = parser.parse(options, arguments);
String reference;
if (line.hasOption("language")) {
ConfigurationController.getInstance().
put("execution.language",
new Language(line.getOptionValue("language"))
);
Locale locale = ((Language) ConfigurationController.
getInstance().get("execution.language")).getLocale();
messages.setLocale(locale);
updateDescriptions();
}
if (line.hasOption("help")) {
printVersion();
printUsage();
return false;
}
if (line.hasOption("version")) {
printVersion();
printNotes();
return false;
}
if (line.getArgs().length != 1) {
printVersion();
printUsage();
return false;
} else {
reference = line.getArgs()[0];
}
if (line.hasOption("timeout")) {
try {
long value = Long.parseLong(line.getOptionValue("timeout"));
if (value <= 0) {
throw new AraraException(
messages.getMessage(
Messages.ERROR_PARSER_TIMEOUT_INVALID_RANGE
)
);
} else {
ConfigurationController.getInstance().
put("execution.timeout", true);
ConfigurationController.getInstance().
put("execution.timeout.value", value);
}
} catch (NumberFormatException nfexception) {
throw new AraraException(
messages.getMessage(
Messages.ERROR_PARSER_TIMEOUT_NAN
)
);
}
}
if (line.hasOption("max-loops")) {
try {
long value = Long.parseLong(
line.getOptionValue("max-loops")
);
if (value <= 0) {
throw new AraraException(
messages.getMessage(
Messages.ERROR_PARSER_LOOPS_INVALID_RANGE
)
);
} else {
ConfigurationController.getInstance().
put("execution.loops", value);
}
} catch (NumberFormatException nfexception) {
throw new AraraException(
messages.getMessage(
Messages.ERROR_PARSER_LOOPS_NAN
)
);
}
}
if (line.hasOption("verbose")) {
ConfigurationController.getInstance().
put("execution.verbose", true);
}
if (line.hasOption("silent")) {
ConfigurationController.getInstance().
put("execution.verbose", false);
}
if (line.hasOption("dry-run")) {
ConfigurationController.getInstance().
put("execution.dryrun", true);
ConfigurationController.getInstance().
put("execution.errors.halt", false);
}
if (line.hasOption("log")) {
ConfigurationController.getInstance().
put("execution.logging", true);
}
if (line.hasOption("preamble")) {
@SuppressWarnings("unchecked")
Map<String, String> preambles = (Map<String, String>)
ConfigurationController.getInstance().
get("execution.preambles");
if (preambles.containsKey(line.getOptionValue("preamble"))) {
ConfigurationController.getInstance().
put("execution.preamble.active", true);
ConfigurationController.getInstance().
put("execution.preamble.content",
preambles.get(line.getOptionValue("preamble"))
);
}
else {
throw new AraraException(
messages.getMessage(
Messages.ERROR_PARSER_INVALID_PREAMBLE,
line.getOptionValue("preamble")
)
);
}
}
if (line.hasOption("header")) {
ConfigurationController.getInstance().
put("execution.header", true);
}
CommonUtils.discoverFile(reference);
LoggingController.enableLogging((Boolean) ConfigurationController.
getInstance().get("execution.logging"));
ConfigurationController.getInstance().put("display.time", true);
return true;
} catch (ParseException pexception) {
printVersion();
printUsage();
return false;
}
}
/**
* Prints the application usage.
*/
private void printUsage() {
HelpFormatter formatter = new HelpFormatter();
StringBuilder builder = new StringBuilder();
builder.append("arara [file [--dry-run] [--log] ");
builder.append("[--verbose | --silent] [--timeout N] ");
builder.append("[--max-loops N] [--language L] ");
builder.append("[ --preamble P ] [--header] | --help | --version]");
formatter.printHelp(builder.toString(), options);
}
/**
* Prints the application version.
*/
private void printVersion() {
String year = (String) ConfigurationController.getInstance().
get("application.copyright.year");
String number = (String) ConfigurationController.getInstance().
get("application.version");
String revision = (String) ConfigurationController.getInstance().
get("application.revision");
StringBuilder builder = new StringBuilder();
builder.append("arara ");
builder.append(number);
builder.append(" (revision ");
builder.append(revision);
builder.append(")");
builder.append("\n");
builder.append("Copyright (c) ").append(year).append(", ");
builder.append("Paulo Roberto Massa Cereda");
builder.append("\n");
builder.append(messages.getMessage(
Messages.INFO_PARSER_ALL_RIGHTS_RESERVED)
);
builder.append("\n");
System.out.println(builder.toString());
}
/**
* Print the application notes.
*/
private void printNotes() {
DisplayUtils.wrapText(messages.getMessage(Messages.INFO_PARSER_NOTES));
}
/**
* Updates all the descriptions in order to make them reflect the current
* language setting.
*/
private void updateDescriptions() {
version.setDescription(
messages.getMessage(
Messages.INFO_PARSER_VERSION_DESCRIPTION
)
);
help.setDescription(
messages.getMessage(
Messages.INFO_PARSER_HELP_DESCRIPTION
)
);
log.setDescription(
messages.getMessage(
Messages.INFO_PARSER_LOG_DESCRIPTION
)
);
verbose.setDescription(
messages.getMessage(
Messages.INFO_PARSER_VERBOSE_MODE_DESCRIPTION
)
);
silent.setDescription(
messages.getMessage(
Messages.INFO_PARSER_SILENT_MODE_DESCRIPTION
)
);
dryrun.setDescription(
messages.getMessage(
Messages.INFO_PARSER_DRYRUN_MODE_DESCRIPTION
)
);
timeout.setDescription(
messages.getMessage(
Messages.INFO_PARSER_TIMEOUT_DESCRIPTION
)
);
language.setDescription(
messages.getMessage(
Messages.INFO_PARSER_LANGUAGE_DESCRIPTION
)
);
loops.setDescription(
messages.getMessage(
Messages.INFO_PARSER_LOOPS_DESCRIPTION
)
);
preamble.setDescription(
messages.getMessage(
Messages.INFO_PARSER_PREAMBLE_DESCRIPTION
)
);
onlyheader.setDescription(
messages.getMessage(
Messages.INFO_PARSER_ONLY_HEADER
)
);
}
}
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