写了一个自动抓取更新文件并生成patches的工具

/*
* Author: sambafeng
* date:2011-04-25
*/
/*
* TODO:auto create patches for script language programe,such as shell,ruby,perl,python
*/
package util;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
public class AutoCreatePatch{
/*
* TODO:create the patches by the key words:sourcedir,destdir,patchTxtName
*/
@SuppressWarnings("unchecked")
public void createPatches(String pre_sourcedir,String pre_destdir,String patchTxtName) throws FileNotFoundException, IOException{
    List num=new ArrayList();
    HashMap hm=new HashMap();
    String suff_pos_name;
    /*empty the destdir */
    deletefile(pre_destdir);
    System.out.println("Cleaning:"+pre_destdir);
new File(pre_destdir).mkdir();
System.out.println("Mkdir:"+pre_destdir+" finished!");
try{
         BufferedReader in = new BufferedReader(new FileReader(patchTxtName));
         String str;
         int row = 0;
         int row_pre=0;
         while((str = in.readLine())!= null){
        row++;
    row_pre=row-1;
        hm.put(row,str);
        if(str.equals("===================================================================")){
        num.add(row_pre);
        }            
         }         
for(int i=0;i<num.size();i++){
suff_pos_name=(String) hm.get(num.get(i));//Index: basefunction/base_resources.rb
String fullfilename=suff_pos_name.substring(suff_pos_name.indexOf("Index: ")+7);//ct/fd/
File fullsourceFile=new File(pre_sourcedir+"/"+fullfilename);//source file
File fulldestFile=new File(pre_destdir+"/"+fullfilename);//dest file
// System.out.println(fulldestFile.getParentFile());
String fulldestDir=fulldestFile.getParent().toString();
new File(fulldestDir).mkdirs();
copyFile(fullsourceFile,fulldestFile);
System.out.println("Copy "+fullsourceFile+" to "+fulldestFile);
      }  
  in.close();
System.out.println("Make Patches finished! Count "+num.size()+" Files");
          }catch(IOException e){
          System.out.println("error");
        }     
}
/*
* copy the file from sourceFile to destFile
*
*/
public static void copyFile(File sourceFile,File destFile) throws IOException{ 
        FileInputStream input = new FileInputStream(sourceFile); 
        BufferedInputStream inBuff=new BufferedInputStream(input); 
        FileOutputStream output = new FileOutputStream(destFile); 
        BufferedOutputStream outBuff=new BufferedOutputStream(output);          
        byte[] b = new byte[1024 * 5]; 
        int len; 
        while ((len =inBuff.read(b))!=-1){
            outBuff.write(b,0,len); 
        } 
        outBuff.flush();           
        inBuff.close(); 
        outBuff.close(); 
        output.close(); 
        input.close(); 
    }



public static boolean deletefile(String destDir)throws FileNotFoundException, IOException {
  try {
   File file = new File(destDir);
   if (!file.isDirectory()) {
    file.delete();
   } else if (file.isDirectory()) {
    String[] filelist = file.list();
    for (int i=0;i<filelist.length; i++) {
     File delfile = new File(destDir+"\\"+filelist[i]);
     if (!delfile.isDirectory()){
      delfile.delete();
     }
     else if(delfile.isDirectory()) {
      deletefile(destDir+"\\"+filelist[i]);
     }
    }
    file.delete();
   }
  } catch (FileNotFoundException e) {
   System.out.println("Exception:" + e.getMessage());
  }
  return true;
}

public static void main(String args[]) throws IOException{
AutoCreatePatch ap=new AutoCreatePatch();
ap.createPatches("D:\\workspace\\Ctrip_AutomationTest","E:/patch/Ctrip_AutomationTest","E:\\patch.txt");

}
}