.pytools/Plugin/LicenseCheck: Use temp directory for git diff output

REF: https://bugzilla.tianocore.org/show_bug.cgi?id=3746

Use --output option in git diff command to remove code diffs
from build log on stdout when LicenseCheck plugin is run.
Instead, create a temp directory for the diff output file and
remove the temp directory after the diff output is processed.

Cc: Sean Brogan <sean.brogan@microsoft.com>
Cc: Bret Barkelew <Bret.Barkelew@microsoft.com>
Cc: Liming Gao <gaoliming@byosoft.com.cn>
Cc: Michael Kubacki <michael.kubacki@microsoft.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Acked-by: Michael Kubacki <michael.kubacki@microsoft.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Sean Brogan <sean.brogan@microsoft.com>

1 files changed, 14 insertions, 6 deletions

diff --git a/.pytool/Plugin/LicenseCheck/LicenseCheck.py b/.pytool/Plugin/LicenseCheck/LicenseCheck.py
index 5733f7bf4e..7b998daf6f 100644
--- a/.pytool/Plugin/LicenseCheck/LicenseCheck.py
+++ b/.pytool/Plugin/LicenseCheck/LicenseCheck.py
@@ -5,6 +5,7 @@
 ##

 

 import os

+import shutil

 import logging

 import re

 from io import StringIO

@@ -61,12 +62,19 @@ class LicenseCheck(ICiBuildPlugin):
     #   - Junit Logger

     #   - output_stream the StringIO output stream from this plugin via logging

     def RunBuildPlugin(self, packagename, Edk2pathObj, pkgconfig, environment, PLM, PLMHelper, tc, output_stream=None):

-        return_buffer = StringIO()

-        params = "diff --unified=0 origin/master HEAD"

-        RunCmd("git", params, outstream=return_buffer)

-        p = return_buffer.getvalue().strip()

-        patch = p.split("\n")

-        return_buffer.close()

+        # Create temp directory

+        temp_path = os.path.join(Edk2pathObj.WorkspacePath, 'Build', '.pytool', 'Plugin', 'LicenseCheck')

+        if not os.path.exists(temp_path):

+            os.makedirs(temp_path)

+        # Output file to use for git diff operations

+        temp_diff_output = os.path.join (temp_path, 'diff.txt')

+        params = "diff --output={} --unified=0 origin/master HEAD".format(temp_diff_output)

+        RunCmd("git", params)

+        with open(temp_diff_output) as file:

+            patch = file.read().strip().split("\n")

+        # Delete temp directory

+        if os.path.exists(temp_path):

+            shutil.rmtree(temp_path)

 

         ignore_files = []

         if "IgnoreFiles" in pkgconfig: