org.codehaus.mojo.license.Eol Maven / Gradle / Ivy
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Maven plugin to download and collect license files from project dependencies.
package org.codehaus.mojo.license;
/*
* #%L
* License Maven Plugin
* %%
* Copyright (C) 2018 Codehaus
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser 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 Lesser Public License for more details.
*
* You should have received a copy of the GNU General Lesser Public
* License along with this program. If not, see
* .
* #L%
*/
import java.io.IOException;
import java.nio.charset.Charset;
import java.nio.file.Files;
import java.nio.file.Path;
/**
* End of line values
*
* @since 1.17
*/
public enum Eol
{
/** Unix {@code \n} */
LF( "\n" ),
/** Windows {@code \r\n} */
CRLF ( "\r\n" ),
/** Autodetect the end of line value based on some existing file using {@link #autodetect(Path, Charset)} */
AUTODETECT ( null )
{
public String getEolString()
{
throw new IllegalStateException( "You need to autodetect the end of line value using "
+ Eol.class.getName() + ".autodetect(Path, Charset)" );
}
},
/**
* The value of the {@code line.separator} system property in the current JVM.
*
* @deprecated kept for backwards compatibility reasons. Use other values of {@link Eol}. {@link #PLATFORM}
* makes your build irreproducible on other platforms.
*/
@Deprecated
PLATFORM ( null )
{
public String getEolString()
{
return System.getProperty( "line.separator" );
}
};
public static Eol autodetect( Path file, Charset charset ) throws IOException
{
final String content = new String( Files.readAllBytes( file ), charset );
return content.indexOf( '\r' ) >= 0 ? Eol.CRLF : Eol.LF;
}
private final String eolString;
private Eol( String eolString )
{
this.eolString = eolString;
}
public String getEolString()
{
return eolString;
}
}
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