[PATCH V2] BaseTools: Latter full value should overwrite the former field value.

[Zhaozh1x <zhiqiangx.zhao@intel.com>]

For structure Pcd, the latter full assign value in commandLine should
override the former field assign value. For example in commandLine,
build --pcd Token.pcd.field="haha" --pcd Token.pcd=H"{0x01,0x02}",
the former field value "haha" will be ignored and overwrite by the latter
full value "{0x01,0x02}".

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: ZhiqiangX Zhao <zhiqiangx.zhao@intel.com>
Cc: Liming Gao <liming.gao@intel.com>
Cc: Yonghong Zhu <yonghong.zhu@intel.com>
Cc: Bob Feng <bob.c.feng@intel.com>
---
 BaseTools/Source/Python/Workspace/DscBuildData.py | 17 +++++++++++++++++
 BaseTools/Source/Python/build/BuildReport.py      | 20 ++++++++++++++++----
 2 files changed, 33 insertions(+), 4 deletions(-)

diff --git a/BaseTools/Source/Python/Workspace/DscBuildData.py b/BaseTools/Source/Python/Workspace/DscBuildData.py
index 88ba415c5a..4e505c1e99 100644
--- a/BaseTools/Source/Python/Workspace/DscBuildData.py
+++ b/BaseTools/Source/Python/Workspace/DscBuildData.py
@@ -1032,6 +1032,23 @@ class DscBuildData(PlatformBuildClassObject):
                         PcdItem = BuildData.Pcds[key]
                         if (TokenSpaceGuidCName, TokenCName) == (PcdItem.TokenSpaceGuidCName, PcdItem.TokenCName) and FieldName =="":
                             PcdItem.DefaultValue = pcdvalue
+        #In command line, the latter full assign value in commandLine should override the former field assign value.
+        #For example, --pcd Token.pcd.field="" --pcd Token.pcd=H"{}"
+        delete_assign = []
+        field_assign = {}
+        if GlobalData.BuildOptionPcd:
+            for pcdTuple in GlobalData.BuildOptionPcd:
+                TokenSpaceGuid, Token, Field = pcdTuple[0], pcdTuple[1], pcdTuple[2]
+                if Field:
+                    if (TokenSpaceGuid, Token) not in field_assign:
+                        field_assign[TokenSpaceGuid, Token] = []
+                    field_assign[TokenSpaceGuid, Token].append(pcdTuple)
+                else:
+                    if (TokenSpaceGuid, Token) in field_assign:
+                        delete_assign.extend(field_assign[TokenSpaceGuid, Token])
+                        field_assign[TokenSpaceGuid, Token] = []
+            for item in delete_assign:
+                GlobalData.BuildOptionPcd.remove(item)
 
     @staticmethod
     def HandleFlexiblePcd(TokenSpaceGuidCName, TokenCName, PcdValue, PcdDatumType, GuidDict, FieldName=''):
diff --git a/BaseTools/Source/Python/build/BuildReport.py b/BaseTools/Source/Python/build/BuildReport.py
index a598d64244..3886a7a55e 100644
--- a/BaseTools/Source/Python/build/BuildReport.py
+++ b/BaseTools/Source/Python/build/BuildReport.py
@@ -982,12 +982,16 @@ class PcdReport(object):
                 PcdValue = DecDefaultValue
                 if DscDefaultValue:
                     PcdValue = DscDefaultValue
-                Pcd.DefaultValue = PcdValue
+                #The DefaultValue of StructurePcd already be the latest, no need to update.
+                if not self.IsStructurePcd(Pcd.TokenCName, Pcd.TokenSpaceGuidCName):
+                    Pcd.DefaultValue = PcdValue
                 if ModulePcdSet is not None:
                     if (Pcd.TokenCName, Pcd.TokenSpaceGuidCName, Type) not in ModulePcdSet:
                         continue
                     InfDefaultValue, PcdValue = ModulePcdSet[Pcd.TokenCName, Pcd.TokenSpaceGuidCName, Type]
-                    Pcd.DefaultValue = PcdValue
+                    #The DefaultValue of StructurePcd already be the latest, no need to update.
+                    if not self.IsStructurePcd(Pcd.TokenCName, Pcd.TokenSpaceGuidCName):
+                        Pcd.DefaultValue = PcdValue
                     if InfDefaultValue:
                         try:
                             InfDefaultValue = ValueExpressionEx(InfDefaultValue, Pcd.DatumType, self._GuidDict)(True)
@@ -1003,7 +1007,9 @@ class PcdReport(object):
                             if pcd[2]:
                                 continue
                             PcdValue = pcd[3]
-                            Pcd.DefaultValue = PcdValue
+                            #The DefaultValue of StructurePcd already be the latest, no need to update.
+                            if not self.IsStructurePcd(Pcd.TokenCName, Pcd.TokenSpaceGuidCName):
+                                Pcd.DefaultValue = PcdValue
                             BuildOptionMatch = True
                             break
 
@@ -1050,7 +1056,7 @@ class PcdReport(object):
                         DscMatch = (DscDefaultValue.strip() == PcdValue.strip())
 
                 IsStructure = False
-                if GlobalData.gStructurePcd and (self.Arch in GlobalData.gStructurePcd) and ((Pcd.TokenCName, Pcd.TokenSpaceGuidCName) in GlobalData.gStructurePcd[self.Arch]):
+                if self.IsStructurePcd(Pcd.TokenCName, Pcd.TokenSpaceGuidCName):
                     IsStructure = True
                     if TypeName in ('DYNVPD', 'DEXVPD'):
                         SkuInfoList = Pcd.SkuInfoList
@@ -1413,6 +1419,12 @@ class PcdReport(object):
             else:
                 return value
 
+    def IsStructurePcd(self, PcdToken, PcdTokenSpaceGuid):
+        if GlobalData.gStructurePcd and (self.Arch in GlobalData.gStructurePcd) and ((PcdToken, PcdTokenSpaceGuid) in GlobalData.gStructurePcd[self.Arch]):
+            return True
+        else:
+            return False
+
 ##
 # Reports platform and module Prediction information
 #
-- 
2.14.1.windows.1