From: Michael Kubacki <michael.kuba...@microsoft.com>

REF:https://bugzilla.tianocore.org/show_bug.cgi?id=3880

Currently UncrustifyCheck.py provides the following exclusion
options:

1. Override the type of files UncrustifyCheck operates against by
default (.c and .h files). Using the "IgnoreStandardPaths"
configuration option.

2. By default, UncrustifyCheck skips files in git submodules and
ignored by git (the "SkipGitExclusions" configuration option can
override this behavior).

The goal of UncrustifyCheck is to provide consistent formatting
across the codebase. In some rare circumstances, maintainers might
need to exclude a specific file (or file pattern) within their
package. For example, a small set of auto-generated files from
another repository.

This change adds a new configuration option that can be specified
in a package CI YAML file to describe a list of files within the
package that should be ignored by UncrustifyCheck.

The configuration option is called "IgnoreFiles" and it uses similar
syntax to git ignore to ignore a list of files.

Cc: Michael D Kinney <michael.d.kin...@intel.com>
Cc: Liming Gao <gaolim...@byosoft.com.cn>
Cc: Sean Brogan <sean.bro...@microsoft.com>
Cc: Bret Barkelew <bret.barke...@microsoft.com>
Signed-off-by: Michael Kubacki <michael.kuba...@microsoft.com>
---
 .pytool/Plugin/UncrustifyCheck/Readme.md          |  7 ++++++
 .pytool/Plugin/UncrustifyCheck/UncrustifyCheck.py | 24 ++++++++++++++++++++
 2 files changed, 31 insertions(+)

diff --git a/.pytool/Plugin/UncrustifyCheck/Readme.md 
b/.pytool/Plugin/UncrustifyCheck/Readme.md
index 0c46fd241a7a..efe7a573e4fa 100644
--- a/.pytool/Plugin/UncrustifyCheck/Readme.md
+++ b/.pytool/Plugin/UncrustifyCheck/Readme.md
@@ -41,6 +41,7 @@ The plugin can be configured with a few optional 
configuration options.
       "AdditionalIncludePaths": [], # Additional paths to check formatting 
(wildcards supported).
       "AuditOnly": False,           # Don't fail the build if there are 
errors.  Just log them.
       "ConfigFilePath": "",         # Custom path to an Uncrustify config file.
+      "IgnoreFiles": [],            # A list of file patterns to ignore.
       "IgnoreStandardPaths": [],    # Standard Plugin defined paths that 
should be ignored.
       "OutputFileDiffs": True,      # Output chunks of formatting diffs in the 
test case log.
                                     # This can significantly slow down the 
plugin on very large packages.
@@ -67,6 +68,12 @@ the test as skipped. This allows visibility into the 
failures without breaking t
 
 When specified in the config file, this is a package relative path to the 
Uncrustify configuration file.
 
+### `IgnoreFiles`
+
+This option supports .gitignore file and folder matching strings including 
wildcards.
+
+The files specified by this configuration option will not be processed by 
Uncrustify.
+
 ### `IgnoreStandardPaths`
 
 This plugin by default will check the below standard paths. A package 
configuration file can specify any of these paths
diff --git a/.pytool/Plugin/UncrustifyCheck/UncrustifyCheck.py 
b/.pytool/Plugin/UncrustifyCheck/UncrustifyCheck.py
index dc133fecc4b2..e8370381032f 100644
--- a/.pytool/Plugin/UncrustifyCheck/UncrustifyCheck.py
+++ b/.pytool/Plugin/UncrustifyCheck/UncrustifyCheck.py
@@ -13,11 +13,13 @@ import os
 import pathlib
 import shutil
 import timeit
+from collections.abc import Callable
 from edk2toolext.environment import version_aggregator
 from edk2toolext.environment.plugin_manager import PluginManager
 from edk2toolext.environment.plugintypes.ci_build_plugin import ICiBuildPlugin
 from edk2toolext.environment.plugintypes.uefi_helper_plugin import 
HelperFunctions
 from edk2toolext.environment.var_dict import VarDict
+from edk2toollib.gitignore_parser import parse_gitignore_lines
 from edk2toollib.log.junit_report_format import JunitReportTestCase
 from edk2toollib.uefi.edk2.path_utilities import Edk2Path
 from edk2toollib.utility_functions import  RunCmd
@@ -273,6 +275,15 @@ class UncrustifyCheck(ICiBuildPlugin):
             f"-c {self._app_config_file} -F {self._app_input_file_path} 
--if-changed --suffix {UncrustifyCheck.FORMATTED_FILE_EXTENSION}", 
outstream=output)
         self._app_output = output.getvalue().strip().splitlines()
 
+    def _get_files_ignored_in_config(self) -> Callable[[str], bool]:
+        """"
+        Returns a function that returns true if a given file string path is 
ignored in the plugin configuration file and false otherwise.
+        """
+        ignored_files = []
+        if "IgnoreFiles" in self._package_config:
+            ignored_files = self._package_config["IgnoreFiles"]
+        return parse_gitignore_lines(ignored_files, 
os.path.join(self._abs_workspace_path, "nofile.txt"), self._abs_workspace_path)
+
     def _get_git_ignored_paths(self) -> List[str]:
         """"
         Returns a list of file absolute path strings to all files ignored in 
this git repository.
@@ -464,6 +475,19 @@ class UncrustifyCheck(ICiBuildPlugin):
             self._abs_file_paths_to_format.extend(
                 [str(path.resolve()) for path in 
pathlib.Path(self._abs_package_path).rglob(path)])
 
+        # Remove files ignore in the plugin configuration file
+        plugin_ignored_files = 
list(filter(self._get_files_ignored_in_config(), 
self._abs_file_paths_to_format))
+
+        if plugin_ignored_files:
+            logging.info(
+                f"{self._package_name} file count before plugin ignore file 
exclusion: {len(self._abs_file_paths_to_format)}")
+            for path in plugin_ignored_files:
+                if path in self._abs_file_paths_to_format:
+                    logging.info(f"  File ignored in plugin config file: 
{path}")
+                    self._abs_file_paths_to_format.remove(path)
+            logging.info(
+                f"{self._package_name} file count after plugin ignore file 
exclusion: {len(self._abs_file_paths_to_format)}")
+
         if not "SkipGitExclusions" in self._package_config or not 
self._package_config["SkipGitExclusions"]:
             # Remove files ignored by git
             logging.info(
-- 
2.28.0.windows.1



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