[util] Remove unused functions from pythonforandroid.util

Author: opacam

pythonforandroid/util.py

@@ -1,8 +1,6 @@
 import contextlib
 from os.path import exists, join
 from os import getcwd, chdir, makedirs, walk, uname
-import io
-import json
 import sh
 import shutil
 import sys
@@ -62,79 +60,6 @@ def ensure_dir(filename):
         makedirs(filename)
 
 
-class JsonStore(object):
-    """Replacement of shelve using json, needed for support python 2 and 3.
-    """
-
-    def __init__(self, filename):
-        super(JsonStore, self).__init__()
-        self.filename = filename
-        self.data = {}
-        if exists(filename):
-            try:
-                with io.open(filename, encoding='utf-8') as fd:
-                    self.data = json.load(fd)
-            except ValueError:
-                print("Unable to read the state.db, content will be replaced.")
-
-    def __getitem__(self, key):
-        return self.data[key]
-
-    def __setitem__(self, key, value):
-        self.data[key] = value
-        self.sync()
-
-    def __delitem__(self, key):
-        del self.data[key]
-        self.sync()
-
-    def __contains__(self, item):
-        return item in self.data
-
-    def get(self, item, default=None):
-        return self.data.get(item, default)
-
-    def keys(self):
-        return self.data.keys()
-
-    def remove_all(self, prefix):
-        for key in self.data.keys()[:]:
-            if not key.startswith(prefix):
-                continue
-            del self.data[key]
-        self.sync()
-
-    def sync(self):
-        # http://stackoverflow.com/questions/12309269/write-json-data-to-file-in-python/14870531#14870531
-        if IS_PY3:
-            with open(self.filename, 'w') as fd:
-                json.dump(self.data, fd, ensure_ascii=False)
-        else:
-            with io.open(self.filename, 'w', encoding='utf-8') as fd:
-                fd.write(unicode(json.dumps(self.data, ensure_ascii=False)))  # noqa F821
-
-
-def which(program, path_env):
-    '''Locate an executable in the system.'''
-    import os
-
-    def is_exe(fpath):
-        return os.path.isfile(fpath) and os.access(fpath, os.X_OK)
-
-    fpath, fname = os.path.split(program)
-    if fpath:
-        if is_exe(program):
-            return program
-    else:
-        for path in path_env.split(os.pathsep):
-            path = path.strip('"')
-            exe_file = os.path.join(path, program)
-            if is_exe(exe_file):
-                return exe_file
-
-    return None
-
-
 def get_virtualenv_executable():
     virtualenv = None
     if virtualenv is None: