CI: add codespell support to check typos

Enable the use of codespell tool in checkpatch.pl
For this the checkpatch.pl as been partially rebased on the Linux one.

Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>

.github/workflows/compliance.yml

@@ -20,7 +20,7 @@ jobs:
     - name: Install python dependencies
       run: |
         pip3 install setuptools
-        pip3 install junitparser==1.6.3 gitlint
+        pip3 install junitparser==1.6.3 gitlint codespell
     - name: Run Compliance Tests
       continue-on-error: true
       id: compliance

scripts/checkpatch.pl

@@ -56,6 +56,7 @@ my $min_conf_desc_length = 4;
 my $spelling_file = "$D/spelling.txt";
 my $codespell = 0;
 my $codespellfile = "/usr/share/codespell/dictionary.txt";
+my $user_codespellfile = "";
 my $conststructsfile = "$D/const_structs.checkpatch";
 my $typedefsfile = "";
 my $color = "auto";
@@ -115,7 +116,7 @@ Options:
   --ignore-perl-version      override checking of perl version.  expect
                              runtime errors.
   --codespell                Use the codespell dictionary for spelling/typos
-                             (default:/usr/share/codespell/dictionary.txt)
+                             (default:$codespellfile)
   --codespellfile            Use this codespell dictionary
   --typedefsfile             Read additional types from this file
   --color[=WHEN]             Use colors 'always', 'never', or only when output
@@ -223,7 +224,7 @@ GetOptions(
 	'debug=s'	=> \%debug,
 	'test-only=s'	=> \$tst_only,
 	'codespell!'	=> \$codespell,
-	'codespellfile=s'	=> \$codespellfile,
+	'codespellfile=s'	=> \$user_codespellfile,
 	'typedefsfile=s'	=> \$typedefsfile,
 	'color=s'	=> \$color,
 	'no-color'	=> \$color,	#keep old behaviors of -nocolor
@@ -234,6 +235,27 @@ GetOptions(
 
 help(0) if ($help);
 
+if ($user_codespellfile) {
+	# Use the user provided codespell file unconditionally
+	$codespellfile = $user_codespellfile;
+} elsif (!(-f $codespellfile)) {
+	# If /usr/share/codespell/dictionary.txt is not present, try to find it
+	# under codespell's install directory: <codespell_root>/data/dictionary.txt
+	if (($codespell || $help) && which("codespell") ne "" && which("python") ne "") {
+		my $python_codespell_dict = << "EOF";
+
+import os.path as op
+import codespell_lib
+codespell_dir = op.dirname(codespell_lib.__file__)
+codespell_file = op.join(codespell_dir, 'data', 'dictionary.txt')
+print(codespell_file, end='')
+EOF
+
+		my $codespell_dict = `python -c "$python_codespell_dict" 2> /dev/null`;
+		$codespellfile = $codespell_dict if (-f $codespell_dict);
+	}
+}
+
 list_types(0) if ($list_types);
 
 $fix = 1 if ($fix_inplace);

scripts/ci/check_compliance.py

@@ -194,7 +194,8 @@ class CheckPatch(ComplianceTest):
         diff = subprocess.Popen(('git', 'diff', COMMIT_RANGE),
                                 stdout=subprocess.PIPE)
         try:
-            subprocess.check_output(checkpatch + ' --mailback' + ' --no-tree' + ' -',
+            subprocess.check_output(checkpatch + ' --mailback' + ' --codespell' +
+                                    ' --no-tree' + ' -',
                                     stdin=diff.stdout,
                                     stderr=subprocess.STDOUT,
                                     shell=True, cwd=GIT_TOP)