cleanup: Enforce stricter identifier naming using clang-tidy.

.circleci/config.yml

@@ -144,10 +144,9 @@ jobs:
       - run:
           apt-get install -y --no-install-recommends
             ca-certificates
-            clang-tidy-12
+            clang-tidy-14
       - checkout
       - run: git submodule update --init --recursive
-      - run: cmake . -B_build -GNinja -DCMAKE_EXPORT_COMPILE_COMMANDS=ON
       - run:
           other/analysis/run-clang-tidy ||
           other/analysis/run-clang-tidy ||

.clang-tidy

@@ -0,0 +1,35 @@
+# vim:ft=yaml
+CheckOptions:
+  - key:             readability-identifier-naming.ClassCase
+    value:           Camel_Snake_Case
+  - key:             readability-identifier-naming.ConstantCase
+    value:           lower_case
+  # bootstrap-daemon has these.
+  - key:             readability-identifier-naming.ConstantIgnoredRegexp
+    value:           "^NAME_.*"
+  - key:             readability-identifier-naming.EnumCase
+    value:           Camel_Snake_Case
+  - key:             readability-identifier-naming.EnumConstantCase
+    value:           UPPER_CASE
+  - key:             readability-identifier-naming.FunctionCase
+    value:           lower_case
+  - key:             readability-identifier-naming.GlobalConstantCase
+    value:           lower_case
+  - key:             readability-identifier-naming.MemberCase
+    value:           lower_case
+  - key:             readability-identifier-naming.MacroDefinitionCase
+    value:           UPPER_CASE
+  - key:             readability-identifier-naming.MacroDefinitionIgnoredRegexp
+    value:           "^_.*|nullable|non_null|nullptr|static_assert|ck_.*"
+  - key:             readability-identifier-naming.ParameterCase
+    value:           lower_case
+  - key:             readability-identifier-naming.StructCase
+    value:           Camel_Snake_Case
+  - key:             readability-identifier-naming.TypedefCase
+    value:           Camel_Snake_Case
+  - key:             readability-identifier-naming.TypedefIgnoredRegexp
+    value:           ".*_cb"
+  - key:             readability-identifier-naming.UnionCase
+    value:           Camel_Snake_Case
+  - key:             readability-identifier-naming.VariableCase
+    value:           lower_case

auto_tests/auto_test_support.c

@@ -13,7 +13,7 @@
 #define ABORT_ON_LOG_ERROR true
 #endif
 
-Run_Auto_Options default_run_auto_options()
+Run_Auto_Options default_run_auto_options(void)
 {
     return (Run_Auto_Options) {
         .graph = GRAPH_COMPLETE,
@@ -27,7 +27,7 @@ static const struct BootstrapNodes {
     const char   *ip;
     uint16_t      port;
     const uint8_t key[32];
-} BootstrapNodes[] = {
+} bootstrap_nodes[] = {
 #ifndef USE_TEST_NETWORK
     {
         "tox.abilinski.com", 33445,
@@ -80,10 +80,10 @@ void bootstrap_tox_live_network(Tox *tox, bool enable_tcp)
 {
     ck_assert(tox != nullptr);
 
-    for (size_t j = 0; BootstrapNodes[j].ip != nullptr; ++j) {
-        const char *ip = BootstrapNodes[j].ip;
-        uint16_t port = BootstrapNodes[j].port;
-        const uint8_t *key = BootstrapNodes[j].key;
+    for (size_t j = 0; bootstrap_nodes[j].ip != nullptr; ++j) {
+        const char *ip = bootstrap_nodes[j].ip;
+        uint16_t port = bootstrap_nodes[j].port;
+        const uint8_t *key = bootstrap_nodes[j].key;
 
         Tox_Err_Bootstrap err;
         tox_bootstrap(tox, ip, port, key, &err);

auto_tests/conference_av_test.c

@@ -217,7 +217,7 @@ static bool test_audio(AutoTox *autotoxes, const bool *disabled, bool quiet)
         printf("testing sending and receiving audio\n");
     }
 
-    const int16_t PCM[GROUP_AV_TEST_SAMPLES] = {0};
+    const int16_t pcm[GROUP_AV_TEST_SAMPLES] = {0};
 
     reset_received_audio(autotoxes);
 
@@ -227,7 +227,7 @@ static bool test_audio(AutoTox *autotoxes, const bool *disabled, bool quiet)
                 continue;
             }
 
-            if (toxav_group_send_audio(autotoxes[i].tox, 0, PCM, GROUP_AV_TEST_SAMPLES, 1, 48000) != 0) {
+            if (toxav_group_send_audio(autotoxes[i].tox, 0, pcm, GROUP_AV_TEST_SAMPLES, 1, 48000) != 0) {
                 if (!quiet) {
                     ck_abort_msg("#%u failed to send audio", autotoxes[i].index);
                 }
@@ -268,12 +268,12 @@ static void test_eventual_audio(AutoTox *autotoxes, const bool *disabled, uint64
 
 static void do_audio(AutoTox *autotoxes, uint32_t iterations)
 {
-    const int16_t PCM[GROUP_AV_TEST_SAMPLES] = {0};
+    const int16_t pcm[GROUP_AV_TEST_SAMPLES] = {0};
     printf("running audio for %u iterations\n", iterations);
 
     for (uint32_t f = 0; f < iterations; ++f) {
         for (uint32_t i = 0; i < NUM_AV_GROUP_TOX; ++i) {
-            ck_assert_msg(toxav_group_send_audio(autotoxes[i].tox, 0, PCM, GROUP_AV_TEST_SAMPLES, 1, 48000) == 0,
+            ck_assert_msg(toxav_group_send_audio(autotoxes[i].tox, 0, pcm, GROUP_AV_TEST_SAMPLES, 1, 48000) == 0,
                           "#%u failed to send audio", autotoxes[i].index);
             iterate_all_wait(autotoxes, NUM_AV_GROUP_TOX, ITERATION_INTERVAL);
         }

auto_tests/file_transfer_test.c

@@ -172,12 +172,12 @@ static void file_transfer_test(void)
     uint32_t test = tox_friend_add(tox3, address, (const uint8_t *)"Gentoo", 7, nullptr);
     ck_assert_msg(test == 0, "Failed to add friend error code: %u", test);
 
-    uint8_t dhtKey[TOX_PUBLIC_KEY_SIZE];
-    tox_self_get_dht_id(tox1, dhtKey);
-    uint16_t dhtPort = tox_self_get_udp_port(tox1, nullptr);
+    uint8_t dht_key[TOX_PUBLIC_KEY_SIZE];
+    tox_self_get_dht_id(tox1, dht_key);
+    uint16_t dht_port = tox_self_get_udp_port(tox1, nullptr);
 
-    tox_bootstrap(tox2, TOX_LOCALHOST, dhtPort, dhtKey, nullptr);
-    tox_bootstrap(tox3, TOX_LOCALHOST, dhtPort, dhtKey, nullptr);
+    tox_bootstrap(tox2, TOX_LOCALHOST, dht_port, dht_key, nullptr);
+    tox_bootstrap(tox3, TOX_LOCALHOST, dht_port, dht_key, nullptr);
 
     printf("Waiting for toxes to come online\n");
 

auto_tests/tox_strncasecmp_test.c

@@ -10,7 +10,7 @@ typedef enum {
     POSITIVE
 } Comparison;
 
-static const char *Comparison_Str[] = { "NEGATIVE", "ZERO", "POSITIVE" };
+static const char *comparison_str[] = { "NEGATIVE", "ZERO", "POSITIVE" };
 
 static void verify(const char *s1, const char *s2, size_t n, Comparison expected)
 {
@@ -19,7 +19,7 @@ static void verify(const char *s1, const char *s2, size_t n, Comparison expected
 
     ck_assert_msg(actual == expected,
                   "tox_strncasecmp(\"%s\", \"%s\", %u) == %s, but expected %s.",
-                  s1, s2, (unsigned)n, Comparison_Str[actual], Comparison_Str[expected]);
+                  s1, s2, (unsigned)n, comparison_str[actual], comparison_str[expected]);
 }
 
 static void test_general(void)