Adding 'clang_tidy_review.sh' and update compdb

Added bash script 'clang_tidy_review.sh' for running clang-tidy on
source files and update install directory for compilation database.

Author: ArthurBandaryk

clang-tidy-review/clang_tidy_review.sh

@@ -0,0 +1,90 @@
+#!/bin/bash
+
+# We need this export to enable color output to the terminal using GitHub
+# Actions. If no, we will get the error while using commands in bash such
+# as `tput`.
+export TERM=xterm-color
+
+# Check if there is clang-tidy installed.
+clang-tidy --version >/dev/null
+if [[ ${?} != 0 ]]; then
+  tput setaf 1 # Red font in terminal.
+  printf "Error: failed to find 'clang-tidy'.\n"
+  tput sgr0 # Make font be default in terminal.
+  printf "Make sure you have clang-tidy installed!\n"
+  exit 1
+fi
+
+# Check for existence of compile_commands.json.
+IFS=:
+compilation_database=$(find . -name 'compile_commands.json')
+unset IFS
+
+if [[ ${#compilation_database} == 0 ]]; then
+  tput setaf 1 # Red font in terminal.
+  printf "Error: there is no compilation database "
+  printf "(compile_commands.json) in your workspace!\n"
+  tput sgr0 # Make font be default in terminal.
+  exit 1
+fi
+
+# Check for existence of .clang-tidy.
+IFS=:
+clang_tidy_config_file=$(find . -name '\.clang-tidy')
+unset IFS
+
+if [[ ${#clang_tidy_config_file} == 0 ]]; then
+  tput setaf 1 # Red font in terminal.
+  printf "Error: there is no .clang-tidy config file in your workspace!\n"
+  tput sgr0 # Make font be default in terminal.
+  exit 1
+fi
+
+# Find all source files (.cc|.cxx|.cpp|.c) we want to check with clang-tidy.
+# We do not include headers since clang-tidy has `--header-filter` option or
+# `HeaderFilterRegex` option (in .clang-tidy). With the help of this option
+# we can easily grab all warnings|errors from headers included in the source
+# files.
+IFS=:
+source_files=$(find . -name '*.cc' -o -name '*.cpp' -o -name '*.cxx')
+unset IFS
+
+# Exit with success if there is no work to do.
+if [[ ${#source_files} == 0 ]]; then
+  tput setaf 2 # Green font in terminal.
+  printf "There are no source files to check with clang-tidy!\n"
+  tput sgr0 # Reset terminal.
+  exit 0
+fi
+
+status_exit=0
+
+# Run clang-tidy checks for every file.
+for file in ${source_files}
+do
+  printf "Run clang-tidy on ${file} ...\n"
+
+  clang-tidy --config-file="${clang_tidy_config_file}" \
+  -p ${compilation_database} ${file} -- -std=c++17 \
+  -I$(bazel info workspace) \
+  -I$(bazel info workspace)/bazel-bin/external/com_github_google_glog/src \
+  -I$(bazel info workspace)/bazel-bin/external/com_github_google_glog/_virtual_includes/glog \
+  -I$(bazel info workspace)/bazel-bin/external/com_github_gflags_gflags/_virtual_includes/gflags \
+  -I$(bazel info workspace)/bazel-bin/external/com_github_libuv_libuv/libuv/include \
+  -I$(bazel info workspace)/external/com_github_google_googletest/googlemock/include \
+  -I$(bazel info workspace)/external/com_github_google_googletest/googletest/include \
+  -I$(bazel info workspace)/external/com_github_curl_curl/include \
+  -I$(bazel info workspace)/external/com_github_chriskohlhoff_asio/asio/include \
+  -I$(bazel info workspace)/external/boringssl/src/include
+      
+  clang_tidy_status=$(echo $?)
+  if [[ ${clang_tidy_status} != 0 ]]
+  then
+    tput setaf 1 # Red font in terminal.
+    printf "Error: ${file} needs to be fixed from clang-tidy warnings.\n"
+    tput sgr0 # Reset terminal.
+    status_exit=1
+  fi
+done
+
+exit ${status_exit}

compilation-database/generate_compilation_database.sh renamed to clang-tidy-review/generate_compilation_database.sh

@@ -1,6 +1,6 @@
 #!/bin/bash
 
-INSTALL_DIR="/dev-tools"
+INSTALL_DIR="$(bazel info workspace)/dev-tools"
 VERSION="0.5.2"
 
 # Check if `generate.py` is already present.
@@ -14,4 +14,4 @@ which ${INSTALL_DIR}/bazel-compilation-database-${VERSION}/generate.py &> /dev/n
 # We should add `--action_env=CC=clang` cause we need clang
 # for using clang-tidy. This script should be executed in 
 # the root directory containing `WORKSPACE.bazel`.
-${INSTALL_DIR}/bazel-compilation-database-${VERSION}/generate.py -- --action_env=CC=clang
+${INSTALL_DIR}/bazel-compilation-database-${VERSION}/generate.py -s -- --action_env=CC=clang