simplify formatting scripts, add a clang-tidy script, and run clang-tidy

misc/scripts/black_format.sh

@@ -6,28 +6,20 @@ set -uo pipefail
 
 # Apply black.
 echo -e "Formatting Python files..."
-PY_FILES=$(find \( -path "./.git" \
-                -o -path "./thirdparty" \
-                \) -prune \
-                -o \( -name "SConstruct" \
-                -o -name "SCsub" \
-                -o -name "*.py" \
-                \) -print)
+PY_FILES=$(git ls-files '*SConstruct' '*SCsub' '*.py' --exclude='.git/*' --exclude='thirdparty/*')
 black -l 120 $PY_FILES
 
-git diff --color > patch.patch
+diff=$(git diff --color)
 
 # If no patch has been generated all is OK, clean up, and exit.
-if [ ! -s patch.patch ] ; then
+if [ -z "$diff" ] ; then
     printf "Files in this commit comply with the black style rules.\n"
-    rm -f patch.patch
     exit 0
 fi
 
 # A patch has been created, notify the user, clean up, and exit.
 printf "\n*** The following differences were found between the code "
 printf "and the formatting rules:\n\n"
-cat patch.patch
+echo "$diff"
 printf "\n*** Aborting, please fix your commit(s) with 'git commit --amend' or 'git rebase -i <hash>'\n"
-rm -f patch.patch
 exit 1

misc/scripts/clang_format.sh

@@ -4,13 +4,10 @@
 # This is the primary script responsible for fixing style violations.
 
 set -uo pipefail
-IFS=$'\n\t'
 
-CLANG_FORMAT_FILE_EXTS=(".c" ".h" ".cpp" ".hpp" ".cc" ".hh" ".cxx" ".m" ".mm" ".inc" ".java" ".glsl")
-
-# Loops through all text files tracked by Git.
-git grep -zIl '' |
-while IFS= read -rd '' f; do
+# Loops through all code files tracked by Git.
+git ls-files '*.c' '*.h' '*.cpp' '*.hpp' '*.cc' '*.hh' '*.cxx' '*.m' '*.mm' '*.inc' '*.java' '*.glsl' |
+while read -r f; do
     # Exclude some files.
     if [[ "$f" == "thirdparty"* ]]; then
         continue
@@ -20,37 +17,31 @@ while IFS= read -rd '' f; do
         continue
     fi
 
-    for extension in ${CLANG_FORMAT_FILE_EXTS[@]}; do
-        if [[ "$f" == *"$extension" ]]; then
-            # Run clang-format.
-            clang-format --Wno-error=unknown -i "$f"
-            # Fix copyright headers, but not all files get them.
-            if [[ "$f" == *"inc" ]]; then
-                continue 2
-            elif [[ "$f" == *"glsl" ]]; then
-                continue 2
-            elif [[ "$f" == "platform/android/java/lib/src/org/godotengine/godot/input/InputManager"* ]]; then
-                continue 2
-            fi
-            python misc/scripts/copyright_headers.py "$f"
-            continue 2
-        fi
-    done
+    # Run clang-format.
+    clang-format --Wno-error=unknown -i "$f"
+
+    # Fix copyright headers, but not all files get them.
+    if [[ "$f" == *"inc" ]]; then
+        continue
+    elif [[ "$f" == *"glsl" ]]; then
+        continue
+    elif [[ "$f" == "platform/android/java/lib/src/org/godotengine/godot/input/InputManager"* ]]; then
+        continue
+    fi
+
+    python misc/scripts/copyright_headers.py "$f"
 done
 
-git diff --color > patch.patch
+diff=$(git diff --color)
 
 # If no patch has been generated all is OK, clean up, and exit.
-if [ ! -s patch.patch ] ; then
-    printf "Files in this commit comply with the clang-format style rules.\n"
-    rm -f patch.patch
+if [ -z "$diff" ] ; then
+    printf "Files in this commit comply with the clang-tidy style rules.\n"
     exit 0
 fi
 
 # A patch has been created, notify the user, clean up, and exit.
-printf "\n*** The following differences were found between the code "
-printf "and the formatting rules:\n\n"
-cat patch.patch
-printf "\n*** Aborting, please fix your commit(s) with 'git commit --amend' or 'git rebase -i <hash>'\n"
-rm -f patch.patch
+printf "\n*** The following changes have been made to comply with the formatting rules:\n\n"
+echo "$diff"
+printf "\n*** Please fix your commit(s) with 'git commit --amend' or 'git rebase -i <hash>'\n"
 exit 1

misc/scripts/clang_tidy.sh

@@ -0,0 +1,39 @@
+#!/usr/bin/env bash
+
+# This script runs clang-tidy on all relevant files in the repo.
+# This is more thorough than clang-format and thus slower; it should only be run manually.
+
+set -uo pipefail
+
+# Loops through all code files tracked by Git.
+git ls-files '*.c' '*.h' '*.cpp' '*.hpp' '*.cc' '*.hh' '*.cxx' '*.m' '*.mm' '*.inc' '*.java' '*.glsl' |
+while read -r f; do
+    # Exclude some files.
+    if [[ "$f" == "thirdparty"* ]]; then
+        continue
+    elif [[ "$f" == "platform/android/java/lib/src/com/google"* ]]; then
+        continue
+    elif [[ "$f" == *"-so_wrap."* ]]; then
+        continue
+    fi
+
+    # Run clang-tidy.
+    clang-tidy --quiet --fix "$f" &> /dev/null
+
+    # Run clang-format. This also fixes the output of clang-tidy.
+    clang-format --Wno-error=unknown -i "$f"
+done
+
+diff=$(git diff --color)
+
+# If no patch has been generated all is OK, clean up, and exit.
+if [ -z "$diff" ] ; then
+    printf "Files in this commit comply with the clang-tidy style rules.\n"
+    exit 0
+fi
+
+# A patch has been created, notify the user, clean up, and exit.
+printf "\n*** The following changes have been made to comply with the formatting rules:\n\n"
+echo "$diff"
+printf "\n*** Please fix your commit(s) with 'git commit --amend' or 'git rebase -i <hash>'\n"
+exit 1

misc/scripts/file_format.sh

@@ -47,10 +47,10 @@ while IFS= read -rd '' f; do
     perl -i -ple 's/\s*$//g' "$f"
 done
 
-git diff --color > patch.patch
+diff=$(git diff --color)
 
 # If no patch has been generated all is OK, clean up, and exit.
-if [ ! -s patch.patch ] ; then
+if [ -z "$diff" ] ; then
     printf "Files in this commit comply with the formatting rules.\n"
     rm -f patch.patch
     exit 0
@@ -59,7 +59,6 @@ fi
 # A patch has been created, notify the user, clean up, and exit.
 printf "\n*** The following differences were found between the code "
 printf "and the formatting rules:\n\n"
-cat patch.patch
+echo "$diff"
 printf "\n*** Aborting, please fix your commit(s) with 'git commit --amend' or 'git rebase -i <hash>'\n"
-rm -f patch.patch
 exit 1