style: Use clang-format as formatter and linter tool

We want to keep the code style consistent, this first commit adds a
.clang-format in order to "document" our style code.

This patch also adds a target *linter* to Makefile which will complain
if we have any style issue on test and src dirs.

I have run the follow command to create the .clang-format file:

        $ clang-format -style=mozilla -dump-config > .clang-format

And I also made some adjusts to .clang-format changing the following
properties:

        PointerAlignment: Right
        ColumnLimit:     120

Commands executed to fix the current styling:

        $ find . -name *.h | xargs clang-format -i
        $ find . -name *.c | xargs clang-format -i

Signed-off-by: Johnny Richard <johnny@johnnyrichard.com>

1 files changed, 22 insertions, 28 deletions

diff --git a/test/integration_test.c b/test/integration_test.c
index b6c0f36..739a938 100644
--- a/test/integration_test.c
+++ b/test/integration_test.c
@@ -1,26 +1,26 @@
 /*
-* Copyright (C) 2023 Carlos Maniero
-*
-* This program is free software: you can redistribute it and/or modify
-* it under the terms of the GNU General Public License as published by
-* the Free Software Foundation, either version 3 of the License, or
-* (at your option) any later version.
-*
-* This program is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-* GNU General Public License for more details.
-*
-* You should have received a copy of the GNU General Public License
-* along with this program.  If not, see <https://www.gnu.org/licenses/>.
-*/
+ * Copyright (C) 2023 Carlos Maniero
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
 #define MUNIT_ENABLE_ASSERT_ALIASES
+#include "munit.h"
 #include <stdio.h>
 #include <string.h>
-#include "munit.h"
 
 void
-assert_exit_status(char* filename, int expected_exit_status)
+assert_exit_status(char *filename, int expected_exit_status)
 {
   char command[255] = "../pipa --silent --out /tmp/pipa_program ";
   strcat(command, filename);
@@ -32,15 +32,13 @@ assert_exit_status(char* filename, int expected_exit_status)
   if (WIFEXITED(status)) {
     int exit_status = WEXITSTATUS(status);
     assert_int(expected_exit_status, ==, exit_status);
-  }
-  else {
+  } else {
     assert_string_equal("", "Exited with error");
   }
 }
 
 static MunitResult
-test_examples(const  MunitParameter params[],
-                 void  *user_data_or_fixture)
+test_examples(const MunitParameter params[], void *user_data_or_fixture)
 {
   assert_exit_status("../examples/main.pipa", 69);
   assert_exit_status("../examples/arithmetics.pipa", 13);
@@ -48,14 +46,10 @@ test_examples(const  MunitParameter params[],
   return MUNIT_OK;
 }
 
-static MunitTest tests[] = {
-  { "/test_examples", test_examples, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL },
-  { NULL, NULL, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL }
-};
+static MunitTest tests[] = { { "/test_examples", test_examples, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL },
+                             { NULL, NULL, NULL, NULL, MUNIT_TEST_OPTION_NONE, NULL } };
 
-static const MunitSuite suite = {
-  "/integration_tests", tests, NULL, 1, MUNIT_SUITE_OPTION_NONE
-};
+static const MunitSuite suite = { "/integration_tests", tests, NULL, 1, MUNIT_SUITE_OPTION_NONE };
 
 int
 main(int argc, char *argv[])