cn.dreampie.common.plugin.lesscss.compiler.LessCssList Maven / Gradle / Ivy

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package cn.dreampie.common.plugin.lesscss.compiler;

import org.lesscss.LessSource;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.util.Arrays;
import java.util.Iterator;
import java.util.Map;

/**
 * Createdby wangrenhui on 2014/7/11.
 */
public class LessCssList extends AbstractLessCss {

  private Logger logger = LoggerFactory.getLogger(getClass());

  public void execute() {
    if (logger.isDebugEnabled()) {
      logger.debug("sourceDirectory = " + sourceDirectory);
      logger.debug("includes = " + Arrays.toString(includes));
      logger.debug("excludes = " + Arrays.toString(excludes));
    }

    String[] files = getIncludedFiles();

    if (files == null || files.length < 1) {
      logger.info("No LESS sources found");
    } else {
      logger.info("The following LESS sources have been resolved:");

      for (String file : files) {
        File lessFile = new File(sourceDirectory, file);
        try {
          LessSource lessSource = new LessSource(lessFile);
          listLessSource(lessSource, file, 0, false);
        } catch (FileNotFoundException e) {
          throw new LessCssException("Error while loading LESS source: " + lessFile.getAbsolutePath(), e);
        } catch (IOException e) {
          throw new LessCssException("Error while loading LESS source: " + lessFile.getAbsolutePath(), e);
        }
      }
    }
  }

  private void listLessSource(LessSource lessSource, String path, int level, boolean last) {
    String prefix = "";
    if (level > 0) {
      for (int i = 1; i <= level; i++) {
        if (i == level && last) {
          prefix = prefix + "`-- ";
        } else if (i == level) {
          prefix = prefix + "|-- ";
        } else {
          prefix = prefix + "|   ";
        }
      }
    }

    logger.info(prefix + path);

    Iterator> it = lessSource.getImports().entrySet().iterator();
    while (it.hasNext()) {
      Map.Entry entry = it.next();
      listLessSource(entry.getValue(), entry.getKey(), level + 1, !it.hasNext());
    }
  }
}