Fix the problem that CMake do not support {} regex

Change patch version to str

cmake/version.cmake

@@ -2,7 +2,7 @@
 set(PADDLE_VERSION $ENV{PADDLE_VERSION})
 set(tmp_version "HEAD")
 set(TAG_VERSION_REGEX "[0-9]+\\.[0-9]+\\.[0-9]+(\\.(a|b|rc)\\.[0-9]+)?")
-set(COMMIT_VERSION_REGEX "[0-9a-f]+")
+set(COMMIT_VERSION_REGEX "[0-9a-f]+[0-9a-f]+[0-9a-f]+[0-9a-f]+[0-9a-f]+")
 while ("${PADDLE_VERSION}" STREQUAL "")
   execute_process(
     COMMAND ${GIT_EXECUTABLE} describe --tags --abbrev=0 --always ${tmp_version}

python/setup.py.in

@@ -32,13 +32,13 @@ def _get_version_detail(idx):
     return 0
 
 def get_major():
-    return _get_version_detail(0)
+    return int(_get_version_detail(0))
 
 def get_minor():
-    return _get_version_detail(1)
+    return int(_get_version_detail(1))
 
 def get_patch():
-    return _get_version_detail(2)
+    return str(_get_version_detail(2))
 
 def is_taged():
     try:
@@ -56,10 +56,10 @@ def write_version_py(filename='paddle/version.py'):
     cnt = '''
 # THIS FILE IS GENERATED FROM PADDLEPADDLE SETUP.PY
 #
-full_version    = '%(major)d.%(minor)d.%(patch)d'
+full_version    = '%(major)d.%(minor)d.%(patch)s'
 major           = '%(major)d'
 minor           = '%(minor)d'
-patch           = '%(patch)d'
+patch           = '%(patch)s'
 rc              = '%(rc)d'
 istaged         = %(istaged)s
 commit          = '%(commit)s'