Don't start CP when less then 100MB is available. fix #3502

2014-06-24 21:20:13 +02:00
parent b6b936ddf3
commit bb19b380b4
3 changed files with 47 additions and 29 deletions
@@ -1,4 +1,5 @@
 import collections
+import ctypes
 import hashlib
 import os
 import platform
@@ -346,3 +347,37 @@ def removePyc(folder, only_excess = True, show_logs = True):
                    os.rmdir(full_path)
                except:
                    log.error('Couldn\'t remove empty directory %s: %s', (full_path, traceback.format_exc()))
+
+
+def getFreeSpace(directories):
+
+    single = not isinstance(directories, (tuple, list))
+    if single:
+        directories = [directories]
+
+    free_space = {}
+    for folder in directories:
+
+        size = None
+        if os.path.isdir(folder):
+            if os.name == 'nt':
+                _, total, free = ctypes.c_ulonglong(), ctypes.c_ulonglong(), \
+                                   ctypes.c_ulonglong()
+                if sys.version_info >= (3,) or isinstance(folder, unicode):
+                    fun = ctypes.windll.kernel32.GetDiskFreeSpaceExW #@UndefinedVariable
+                else:
+                    fun = ctypes.windll.kernel32.GetDiskFreeSpaceExA #@UndefinedVariable
+                ret = fun(folder, ctypes.byref(_), ctypes.byref(total), ctypes.byref(free))
+                if ret == 0:
+                    raise ctypes.WinError()
+                used = total.value - free.value
+                return [total.value, used, free.value]
+            else:
+                s = os.statvfs(folder)
+                size = [s.f_blocks * s.f_frsize / (1024 * 1024), (s.f_bavail * s.f_frsize) / (1024 * 1024)]
+
+        if single: return size
+
+        free_space[folder] = size
+
+    return free_space