From 18fbc56c7256430aa5b2c2337628d8a3b78fb632 Mon Sep 17 00:00:00 2001
From: Leap of Azzam <leapofazzam@gmail.com>
Date: Wed, 17 Nov 2021 15:36:43 +0700
Subject: [PATCH] add package: zig

Signed-off-by: Leap of Azzam <leapofazzam@gmail.com>
---
 build-package.sh                        |  4 +++
 packages/zig/build.sh                   | 23 +++++++++++++
 packages/zig/cmake-Findllvm.cmake.patch | 11 +++++++
 scripts/build/setup/termux_setup_zig.sh | 44 +++++++++++++++++++++++++
 scripts/setup-offline-bundle.sh         |  3 ++
 5 files changed, 85 insertions(+)
 create mode 100644 packages/zig/build.sh
 create mode 100644 packages/zig/cmake-Findllvm.cmake.patch
 create mode 100644 scripts/build/setup/termux_setup_zig.sh

diff --git a/build-package.sh b/build-package.sh
index 19a01d27b4..bab3422209 100755
--- a/build-package.sh
+++ b/build-package.sh
@@ -67,6 +67,10 @@ source "$TERMUX_SCRIPTDIR/scripts/build/setup/termux_setup_golang.sh"
 # shellcheck source=scripts/build/setup/termux_setup_rust.sh
 source "$TERMUX_SCRIPTDIR/scripts/build/setup/termux_setup_rust.sh"
 
+# Utility function for zig-using packages to setup a zig toolchain.
+# shellcheck source=scripts/build/setup/termux_setup_zig.sh
+source "$TERMUX_SCRIPTDIR/scripts/build/setup/termux_setup_zig.sh"
+
 # Utility function to setup a current ninja build system.
 # shellcheck source=scripts/build/setup/termux_setup_ninja.sh
 source "$TERMUX_SCRIPTDIR/scripts/build/setup/termux_setup_ninja.sh"
diff --git a/packages/zig/build.sh b/packages/zig/build.sh
new file mode 100644
index 0000000000..d2b900a8ae
--- /dev/null
+++ b/packages/zig/build.sh
@@ -0,0 +1,23 @@
+TERMUX_PKG_HOMEPAGE=https://ziglang.org
+TERMUX_PKG_DESCRIPTION="General-purpose programming language and toolchain for maintaining robust, optimal, and reusable software."
+TERMUX_PKG_LICENSE="MIT"
+TERMUX_PKG_MAINTAINER="@leapofazzam123"
+TERMUX_PKG_VERSION=0.9.0
+TERMUX_PKG_SRCURL=https://ziglang.org/download/$TERMUX_PKG_VERSION/zig-$TERMUX_PKG_VERSION.tar.xz
+TERMUX_PKG_SHA256=cd1be83b12f8269cc5965e59877b49fdd8fa638efb6995ac61eb4cea36a2e381
+TERMUX_PKG_AUTO_UPDATE=true
+TERMUX_PKG_DEPENDS="libandroid-spawn, libc++, libxml2, ncurses, zlib"
+TERMUX_PKG_BUILD_DEPENDS="llvm, libllvm-static"
+TERMUX_PKG_EXTRA_CONFIGURE_ARGS="
+-DZIG_PREFER_CLANG_CPP_DYLIB=OFF
+-DLLVM_LIBDIRS=$TERMUX_PREFIX/lib
+"
+
+termux_step_pre_configure() {
+	termux_setup_zig
+	TERMUX_PKG_EXTRA_CONFIGURE_ARGS+="
+		-DZIG_EXECUTABLE=$(which zig)
+		-DZIG_TARGET_TRIPLE=$ZIG_TARGET_NAME
+		"
+	LDFLAGS+=" -landroid-spawn -lncursesw -lxml2 -lz"
+}
diff --git a/packages/zig/cmake-Findllvm.cmake.patch b/packages/zig/cmake-Findllvm.cmake.patch
new file mode 100644
index 0000000000..c42914804d
--- /dev/null
+++ b/packages/zig/cmake-Findllvm.cmake.patch
@@ -0,0 +1,11 @@
+--- a/cmake/Findllvm.cmake
++++ b/cmake/Findllvm.cmake
+@@ -353,6 +353,8 @@
+   FIND_AND_ADD_LLVM_LIB(LLVMBinaryFormat)
+   FIND_AND_ADD_LLVM_LIB(LLVMSupport)
+   FIND_AND_ADD_LLVM_LIB(LLVMDemangle)
++  FIND_AND_ADD_LLVM_LIB(Polly)
++  FIND_AND_ADD_LLVM_LIB(PollyISL)
+ endif()
+ 
+ include(FindPackageHandleStandardArgs)
diff --git a/scripts/build/setup/termux_setup_zig.sh b/scripts/build/setup/termux_setup_zig.sh
new file mode 100644
index 0000000000..8b2b718a48
--- /dev/null
+++ b/scripts/build/setup/termux_setup_zig.sh
@@ -0,0 +1,44 @@
+termux_setup_zig() {
+	local ZIG_VERSION=0.9.0
+	local ZIG_FOLDER
+
+	if [ "${TERMUX_PACKAGES_OFFLINE-false}" = "true" ]; then
+		ZIG_FOLDER=${TERMUX_SCRIPTDIR}/build-tools/zig-${ZIG_VERSION}
+	else
+		ZIG_FOLDER=${TERMUX_COMMON_CACHEDIR}/zig-${ZIG_VERSION}
+	fi
+
+	if [ "$TERMUX_ON_DEVICE_BUILD" = "false" ]; then
+		if [ ! -x "$ZIG_FOLDER/zig" ]; then
+			mkdir -p "$ZIG_FOLDER"
+			local ZIG_TARBALL=$TERMUX_PKG_TMPDIR/zig-$ZIG_VERSION.zip
+			termux_download https://ziglang.org/download/$ZIG_VERSION/zig-linux-x86_64-$ZIG_VERSION.tar.xz \
+				"$ZIG_TARBALL" \
+				5c55344a877d557fb1b28939785474eb7f4f2f327aab55293998f501f7869fa6
+			tar xf "$ZIG_TARBALL" -C "$ZIG_FOLDER" --strip-components=1
+		fi
+		export PATH=$ZIG_FOLDER:$PATH
+	else
+		local ZIG_PKG_VERSION=$(bash -c ". $TERMUX_SCRIPTDIR/packages/zig/build.sh; echo \$TERMUX_PKG_VERSION")
+		if ([ ! -e "$TERMUX_BUILT_PACKAGES_DIRECTORY/zig" ] ||
+		    [ "$(cat "$TERMUX_BUILT_PACKAGES_DIRECTORY/zig")" != "$ZIG_PKG_VERSION" ]) &&
+		   [ "$(dpkg-query -W -f '${db:Status-Status}\n' zig 2>/dev/null)" != "installed" ]; then
+			echo "Package 'zig' is not installed."
+			echo "You can install it with"
+			echo
+			echo "  pkg install zig"
+			echo
+			echo "or build it from source with"
+			echo
+			echo "  ./build-package.sh zig"
+			echo
+			exit 1
+		fi
+	fi
+
+	if [ $TERMUX_ARCH = "i686" ]; then
+		ZIG_TARGET_NAME=i386-linux-android
+	else
+		ZIG_TARGET_NAME=$TERMUX_ARCH-linux-android
+	fi
+}
diff --git a/scripts/setup-offline-bundle.sh b/scripts/setup-offline-bundle.sh
index 41aede6922..068a6cebaf 100755
--- a/scripts/setup-offline-bundle.sh
+++ b/scripts/setup-offline-bundle.sh
@@ -47,6 +47,9 @@ mkdir -p "$TERMUX_PKG_TMPDIR"
 #(. "$TERMUX_SCRIPTDIR"/scripts/build/setup/termux_setup_rust.sh
 #	termux_setup_rust
 #)
+(. "$TERMUX_SCRIPTDIR"/scripts/build/setup/termux_setup_zig.sh
+	termux_setup_zig
+)
 rm -rf "${TERMUX_PKG_TMPDIR}"
 (test -d "$TERMUX_SCRIPTDIR"/build-tools/android-sdk && test -d "$TERMUX_SCRIPTDIR"/build-tools/android-ndk && exit 0
 	"$TERMUX_SCRIPTDIR"/scripts/setup-android-sdk.sh