Revert "rename the default version from '0.0.0' to 'latest' (#17304)" (#17356)

This reverts commit f456c8be.

cmake/version.cmake

@@ -3,8 +3,6 @@ set(PADDLE_VERSION $ENV{PADDLE_VERSION})
 set(tmp_version "HEAD")
 set(TAG_VERSION_REGEX "[0-9]+\\.[0-9]+\\.[0-9]+(\\.(a|b|rc)\\.[0-9]+)?")
 set(COMMIT_VERSION_REGEX "[0-9a-f]+[0-9a-f]+[0-9a-f]+[0-9a-f]+[0-9a-f]+")
-set(LATEST_PADDLE_VERSION "latest")
-
 while ("${PADDLE_VERSION}" STREQUAL "")
   # Check current branch name
   execute_process(
@@ -25,8 +23,8 @@ while ("${PADDLE_VERSION}" STREQUAL "")
       if (${GIT_BRANCH_NAME} MATCHES "release/${TAG_VERSION_REGEX}")
         # Check the tag is a correct version
         if (${GIT_TAG_NAME} MATCHES "${COMMIT_VERSION_REGEX}")
-          # if no tag was found, set PADDLE_VERSION to "latest"
-          set(PADDLE_VERSION "${LATEST_PADDLE_VERSION}")
+          # if no tag was found, set PADDLE_VERSION to 0.0.0 to represent latest
+          set(PADDLE_VERSION "0.0.0")
         elseif (${GIT_TAG_NAME} MATCHES "v${TAG_VERSION_REGEX}")
           string(REPLACE "v" "" PADDLE_VERSION ${GIT_TAG_NAME})
         else()  # otherwise, get the previous git tag name.
@@ -44,19 +42,19 @@ while ("${PADDLE_VERSION}" STREQUAL "")
           if (${GIT_EXACT_TAG_NAME} MATCHES "v${TAG_VERSION_REGEX}")
             string(REPLACE "v" "" PADDLE_VERSION ${GIT_EXACT_TAG_NAME})
           else()
-            set(PADDLE_VERSION "${LATEST_PADDLE_VERSION}")
+            set(PADDLE_VERSION "0.0.0")
           endif()
         else()
-          # otherwise, we always set PADDLE_VERSION to "latest"
-          set(PADDLE_VERSION "${LATEST_PADDLE_VERSION}")
+          # otherwise, we always set PADDLE_VERSION to 0.0.0 to represent latest
+          set(PADDLE_VERSION "0.0.0")
         endif()
       endif()
     else()
-      set(PADDLE_VERSION "${LATEST_PADDLE_VERSION}")
+      set(PADDLE_VERSION "0.0.0")
       message(WARNING "Cannot add paddle version from git tag")
     endif()
   else()
-    set(PADDLE_VERSION "${LATEST_PADDLE_VERSION}")
+    set(PADDLE_VERSION "0.0.0")
     message(WARNING "Cannot add paddle version for wrong git branch result")
   endif()
 endwhile()

python/paddle/fluid/tests/unittests/test_version.py

@@ -30,14 +30,18 @@ class VersionTest(unittest.TestCase):
         self._commit_regex = "[0-9a-f]{5,49}"
 
     def test_check_output(self):
+        # check commit format
+        self.assertTrue(re.match(self._commit_regex, fluid_version.commit))
         self.assertTrue(isinstance(fluid_version.istaged, bool))
 
         # check version format
         if fluid_version.istaged:
-            self.assertEqual(fluid_version.full_version, "latest")
+            self.assertEqual(fluid_version.major, 0)
+            self.assertEqual(fluid_version.minor, 0)
+            self.assertEqual(fluid_version.patch, "0")
+            self.assertEqual(fluid_version.rc, 0)
+            self.assertEqual(fluid_version.full_version, "0.0.0")
         else:
-            # check commit format
-            self.assertTrue(re.match(self._commit_regex, fluid_version.commit))
             self.assertTrue(re.match(self._major_regex, fluid_version.major))
             self.assertTrue(re.match(self._minor_regex, fluid_version.minor))
             self.assertTrue(re.match(self._patch_regex, fluid_version.patch))