nextflow.util.CmdLineHelper.groovy Maven / Gradle / Ivy
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A DSL modelled around the UNIX pipe concept, that simplifies writing parallel and scalable pipelines in a portable manner
/*
* Copyright 2013-2019, Centre for Genomic Regulation (CRG)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package nextflow.util
/**
*
* @author Paolo Di Tommaso
*/
class CmdLineHelper {
def List args
CmdLineHelper( String cmdLineToBeParsed ) {
args = splitter(cmdLineToBeParsed ?: '')
}
def boolean contains(String argument) {
return args.indexOf(argument) != -1
}
def getArg( String argument ) {
def pos = args.indexOf(argument)
if( pos == -1 ) return null
def result = []
for( int i=pos+1; i
* For example the string: {@code "alpha beta 'delta gamma'"} will return the following result
* {@code ["alpha", "beta", "delta gamma"]}
*
* @param cmdline The string to be splitted in single elements
* @return A list of string on which each entry represent a command line argument, or an
* empty list if the {@code cmdline} parameter is empty
*/
static List splitter( String cmdline ) {
List result = []
if( cmdline ) {
QuoteStringTokenizer tokenizer = new QuoteStringTokenizer(cmdline);
while( tokenizer.hasNext() ) {
result.add(tokenizer.next())
}
}
result
}
static String toLine( String... args ) {
toLine( args as List)
}
static String toLine( List args ) {
def result = new ArrayList(args.size())
args.each { result << (it.contains(' ') ? "'${it}'" : it) }
return result.join(' ')
}
}