Add dependency installation script for windows arm64 builds (#9080)

Add a pre-build script that installs needed dependencies for windows arm64 builds.

Author: alinpahontu2912

packaging/pre_build_script_arm64.sh

@@ -0,0 +1,69 @@
+#!/bin/bash
+
+echo "Building vision dependencies and wheel started."
+
+# Set environment variables
+export SRC_PATH="$GITHUB_WORKSPACE/$SRC_DIR"
+export CMAKE_BUILD_TYPE="$BUILD_TYPE"
+export VCVARSALL_PATH="$DEPENDENCIES_DIR/VSBuildTools/VC/Auxiliary/Build/vcvarsall.bat"
+export CONDA_PREFIX="$DEPENDENCIES_DIR"
+export PATH="$PATH:$CONDA_PREFIX/Library/bin"
+export DISTUTILS_USE_SDK=1
+export TRIPLET_FILE="triplets/arm64-windows.cmake"
+export PYTORCH_VERSION="$PYTORCH_VERSION"
+export CHANNEL="$CHANNEL"
+
+# Dependencies
+mkdir -p "$DOWNLOADS_DIR"
+mkdir -p "$DEPENDENCIES_DIR"
+echo "*" > "$DOWNLOADS_DIR/.gitignore"
+echo "*" > "$DEPENDENCIES_DIR/.gitignore"
+
+# Install vcpkg
+cd "$DOWNLOADS_DIR" || exit
+git clone https://github.com/microsoft/vcpkg.git
+cd vcpkg || exit
+./bootstrap-vcpkg.sh
+
+# Set vcpkg to only build release packages
+echo "set(VCPKG_BUILD_TYPE release)" >> "$TRIPLET_FILE"
+
+# Install dependencies using vcpkg
+./vcpkg install libjpeg-turbo:arm64-windows --x-install-root="$DEPENDENCIES_DIR"
+./vcpkg install libwebp:arm64-windows --x-install-root="$DEPENDENCIES_DIR"
+./vcpkg install libpng[tools]:arm64-windows --x-install-root="$DEPENDENCIES_DIR"
+
+# Copy files using cp
+cp "$DEPENDENCIES_DIR/arm64-windows/lib/libpng16.lib" "$DEPENDENCIES_DIR/arm64-windows/lib/libpng.lib"
+cp "$DEPENDENCIES_DIR/arm64-windows/bin/libpng16.dll" "$DEPENDENCIES_DIR/arm64-windows/bin/libpng.dll"
+cp "$DEPENDENCIES_DIR/arm64-windows/bin/libpng16.pdb" "$DEPENDENCIES_DIR/arm64-windows/bin/libpng.pdb"
+mkdir -p "$DEPENDENCIES_DIR/Library/"
+cp -r "$DEPENDENCIES_DIR/arm64-windows/"* "$DEPENDENCIES_DIR/Library/"
+cp -r "$DEPENDENCIES_DIR/Library/tools/libpng/"* "$DEPENDENCIES_DIR/Library/bin/"
+cp -r "$DEPENDENCIES_DIR/Library/bin/"* "$SRC_PATH/torchvision"
+
+# Source directory
+cd "$SRC_PATH" || exit
+
+# Create virtual environment
+python -m pip install --upgrade pip
+python -m venv .venv
+echo "*" > .venv/.gitignore
+source .venv/Scripts/activate
+
+# Install dependencies
+pip install numpy==2.2.3
+
+if [ "$CHANNEL" = "release" ]; then
+  echo "Installing latest stable version of PyTorch."
+  # TODO: update when arm64 torch available on pypi
+  pip3 install --pre torch --index-url https://download.pytorch.org/whl/torch/
+elif [ "$CHANNEL" = "test" ]; then
+  echo "Installing PyTorch version $PYTORCH_VERSION."
+  pip3 install --pre torch=="$PYTORCH_VERSION" --index-url https://download.pytorch.org/whl/test
+else
+  echo "CHANNEL is not set, installing PyTorch from nightly."
+  pip3 install --pre torch --index-url https://download.pytorch.org/whl/nightly/cpu
+fi
+
+echo "Dependencies install finished successfully."