Merge pull request geekcomputers#345 from morganwang010/master

merger

Author: geekcomputers

tar.py

@@ -0,0 +1,67 @@
+import gzip
+import os
+import tarfile , zipfile, rarfile
+
+from library.utils.file import get_filetype
+from library.utils.path import make_dir
+from library.utils.type_conv import random_str
+
+def uncompress(src_file, dest_dir):
+    result = get_filetype(src_file)
+    if not result[0] :
+        return (False, result[1], '')
+    filefmt = result[1]
+
+    result = make_dir(dest_dir)
+    if not result :
+        return (False, '创建解压目录失败', filefmt)
+
+    if filefmt in ('tgz', 'tar') :
+        try :
+            tar = tarfile.open(src_file)  
+            names = tar.getnames()   
+            for name in names:  
+                tar.extract(name, dest_dir)  
+            tar.close()
+        except Exception as e :
+            return (False, e, filefmt)
+    elif filefmt == 'zip':
+        try :
+            zip_file = zipfile.ZipFile(src_file)  
+            for names in zip_file.namelist():  
+                zip_file.extract(names, dest_dir)  
+            zip_file.close()  
+        except Exception as e :
+            return (False, e, filefmt)
+    elif filefmt == 'rar' :
+        try :
+            rar = rarfile.RarFile(src_file)  
+            os.chdir(dest_dir)
+            rar.extractall()  
+            rar.close()  
+        except Exception as e :
+            return (False, e, filefmt)
+    elif filefmt == 'gz' :
+        try :
+
+            f_name = dest_dir + '/' + os.path.basename(src_file)
+            # 获取文件的名称，去掉  
+            g_file = gzip.GzipFile(src_file)  
+            # 创建gzip对象  
+            open(f_name, "w+").write(g_file.read())  
+            # gzip对象用read()打开后，写入open()建立的文件中。  
+            g_file.close()  
+            # 关闭gzip对象  
+
+            result = get_filetype(src_file)
+            if not result[0] :
+                new_filefmt = '未知'
+            else :
+                new_filefmt = result[1]
+            return (True, '解压后的文件格式为：' + new_filefmt, filefmt)
+        except Exception as e :
+            return (False, e, filefmt)
+    else :
+        return (False, '文件格式不支持或者不是压缩文件', filefmt)
+
+    return (True, '', filefmt)