scripts: Move to ClangBuiltLinux's tc-build repo for building Clang

((Python is Snake))

Basically no point to keep maintaining Bash build-clang script
especially since I'm going to move to Zsh in the future.

**

Temporarily tracks nathanchance's python-bringup branch until scripts
are actually made a way to the actual repo, so expect some weird stuffs
to happen while they're on hold for revisions.

(ClangBuiltLinux/tc-build#2)

Signed-off-by: Albert I <krascgq@outlook.co.id>

.gitmodules

@@ -1,6 +1,7 @@
 [submodule "telegram"]
 	path = telegram
 	url = git://github.com/fabianonline/telegram.sh
-[submodule "patches"]
-	path = patches
-	url = git://github.com/krasCGQ/patches
+[submodule "clang"]
+	path = clang
+	url = git://github.com/nathanchance/tc-build
+	branch = python-bringup

README.md

@@ -16,7 +16,6 @@ Enjoy!
 
 ## Standalone Shell Scripts List
 
-* `build-clang`: Clang build script (mostly modified for my local environment and changes adjusted from [khusika/build-tools-clang](https://github.com/khusika/build-tools-clang))
 * `killswitch`: VPN kill switch enabler/disabler for UFW (requires `sudo` privileges as `ufw` is only visible to `root` user); only supports VPN connected through `tun0`
 * `kudbuild`: KudKernel build script; only supports mido (treble) and X00T
 

env/common

@@ -100,3 +100,29 @@ zipsigner() {
 korg_merge() {
     git pull git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux v"${1}" --signoff
 }
+
+# ClangBuiltLinux's build-llvm.py wrapper
+build-clang() {
+    local ARCH BUILD_DIR CURRENT_DIR INSTALL_DIR WORK_DIR
+    ARCH="AArch64;ARM;X86"
+    BUILD_DIR=${HOME}/build/clang
+    CURRENT_DIR=$(pwd)
+    INSTALL_DIR=/opt/kud/clang
+    WORK_DIR=${SCRIPTDIR}/clang
+
+    [[ ! -f ${WORK_DIR}/.git ]] && { warn "Please init the submodule before continuing."; return 1; }
+
+    cd "${WORK_DIR}" || return 1
+
+    [[ ! -d ${BUILD_DIR} ]] && mkdir -p "${BUILD_DIR}"
+    [[ ! -L build ]] && { rm -rf build; ln -sf "${BUILD_DIR}" build; }
+
+    ./build-llvm.py -I ${INSTALL_DIR} -t ${ARCH}
+
+    cd "${CURRENT_DIR}" || return 1
+}
+
+# ClangBuiltLinux's build-binutils.py wrapper
+build-binutils() {
+    "${SCRIPTDIR}"/clang/build-binutils.py -I /opt/kud/binutils -t x86_64
+}