BaseTools: Library hashing fix and optimization for --hash feature

[mirror_edk2.git] / edksetup.sh

diff --git a/edksetup.sh b/edksetup.sh
index 06f95f4b9c278c154c43420770875057d7769526..c7b2e1e2010aa46af1332c85281df9d0ca9bf68f 100755 (executable)
--- a/edksetup.sh
+++ b/edksetup.sh
@@ -1,13 +1,7 @@
 #
 # Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
 # Copyright (c) 2016, Linaro Ltd. All rights reserved.<BR>
-# This program and the accompanying materials
-# are licensed and made available under the terms and conditions of the BSD License
-# which accompanies this distribution.  The full text of the license may be found at
-# http://opensource.org/licenses/bsd-license.php
-# 
-# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
-# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
+# SPDX-License-Identifier: BSD-2-Clause-Patent
 #
 # In *inux environment, the build tools's source is required and need to be compiled
 # firstly, please reference https://github.com/tianocore/tianocore.github.io/wiki/SourceForge-to-Github-Quick-Start
@@ -49,6 +43,7 @@ function SetWorkspace()
   #
   # If WORKSPACE is already set, then we can return right now
   #
+  export PYTHONHASHSEED=1
   if [ -n "$WORKSPACE" ]
   then
     return 0
@@ -77,7 +72,6 @@ function SetWorkspace()
   # Set $WORKSPACE
   #
   export WORKSPACE=`pwd`
-  export PYTHONHASHSEED=1
   return 0
 }
 
@@ -90,7 +84,7 @@ function SetupEnv()
   then
     . $WORKSPACE/BaseTools/BuildEnv
   elif [ -n "$PACKAGES_PATH" ]
-  then 
+  then
     PATH_LIST=$PACKAGES_PATH
     PATH_LIST=${PATH_LIST//:/ }
     for DIR in $PATH_LIST
@@ -111,52 +105,76 @@ function SetupEnv()
   fi
 }
 
-function SetupPython()
-{    
-  if [ $PYTHON3_ENABLE ] && [ $PYTHON3_ENABLE == TRUE ]
-  then
-    for python in $(which python3)
+function SetupPython3()
+{
+  if [ $origin_version ];then
+      origin_version=
+    fi
+    for python in $(whereis python3)
     do
       python=$(echo $python | grep "[[:digit:]]$" || true)
       python_version=${python##*python}
-      if [ -z "${python_version}" ];then
+      if [ -z "${python_version}" ] || (! command -v $python >/dev/null 2>&1);then
         continue
       fi
       if [ -z $origin_version ];then
         origin_version=$python_version
-        export PYTHON=$python
+        export PYTHON_COMMAND=$python
         continue
       fi
       ret=`echo "$origin_version < $python_version" |bc`
       if [ "$ret" -eq 1 ]; then
         origin_version=$python_version
-        export PYTHON=$python
+        export PYTHON_COMMAND=$python
       fi
     done
+    return 0
+}
+
+function SetupPython()
+{
+  if [ $PYTHON_COMMAND ] && [ -z $PYTHON3_ENABLE ];then
+    if ( command -v $PYTHON_COMMAND >/dev/null 2>&1 );then
+      return 0
+    else
+      echo $PYTHON_COMMAND Cannot be used to build or execute the python tools.
+      return 1
+    fi
   fi
-  
-  if [ -z $PYTHON3_ENABLE ] || [ $PYTHON3_ENABLE != TRUE ]
+
+  if [ $PYTHON3_ENABLE ] && [ $PYTHON3_ENABLE == TRUE ]
   then
-    for python in $(which python2)
+    SetupPython3
+  fi
+
+  if [ $PYTHON3_ENABLE ] && [ $PYTHON3_ENABLE != TRUE ]
+  then
+    if [ $origin_version ];then
+      origin_version=
+    fi
+    for python in $(whereis python2)
     do
       python=$(echo $python | grep "[[:digit:]]$" || true)
       python_version=${python##*python}
-      if [ -z "${python_version}" ];then
+      if [ -z "${python_version}" ] || (! command -v $python >/dev/null 2>&1);then
         continue
       fi
-      if [ -z $origin_version ] || [ $origin_version -ge 3 ]
+      if [ -z $origin_version ]
       then
         origin_version=$python_version
-        export PYTHON=$python
+        export PYTHON_COMMAND=$python
         continue
       fi
       ret=`echo "$origin_version < $python_version" |bc`
       if [ "$ret" -eq 1 ]; then
         origin_version=$python_version
-        export PYTHON=$python
+        export PYTHON_COMMAND=$python
       fi
     done
+    return 0
   fi
+
+  SetupPython3
 }
 
 function SourceEnv()