linux: Improve setup script

linux_install.sh

@@ -1,33 +1,114 @@
+#!/usr/bin/env bash
+
+# ------------------------------------------------------------------------------
+# Functions
+# ------------------------------------------------------------------------------
+DownloadFile()
+{
+    url=$1
+    dest_file=$2
+
+    if [[ -f "${dest_file}" ]]; then
+        echo "- [Download] [Cached] ${url} to ${dest_file}"
+    else
+        wget --output-document ${dest_file} ${url}
+        if [ $? -ne 0 ]; then
+            echo "Failed to download file from ${url}"
+            exit
+        fi
+    fi
+}
+
+FileSHA256HashCheck()
+{
+    file=$1
+    expected=$2
+
+    echo "${expected} ${file}" | sha256sum --check
+    if [[ $? -ne 0 ]]; then
+        echo "- [Verify] ${file} "
+        echo "Expected: ${expected}"
+        echo "Actual: $(sha256sum ${file})"
+        exit
+    else
+        echo "- [Verify] Hash OK: ${file} ${expected}"
+    fi
+}
+
+# ------------------------------------------------------------------------------
+# Setup
+# ------------------------------------------------------------------------------
+root_dir=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
+
+home_dir=${root_dir}/Home
+installer_dir=${root_dir}/Installer
+tools_dir=${root_dir}/Tools
+downloads_dir=${root_dir}/Downloads
+mkdir --parents ${home_dir}
+mkdir --parents ${tools_dir}
+mkdir --parents ${downloads_dir}
+
+bin_dir=${tools_dir}/Binaries
+
 vim_dir=${HOME}/.vim
 vim_plug_dir=${vim_dir}/autoload
-
-script_dir=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
-tools_dir=${script_dir}/Tools
-bin_dir=${tools_dir}/binaries
-
 mkdir --parents ${vim_plug_dir}
 mkdir --parents ${bin_dir}
 mkdir --parents ~/.config/nvim
 
+# ------------------------------------------------------------------------------
+# Tools
+# ------------------------------------------------------------------------------
+# ------------------------------------------------------------------------------
+# Dependencies
+# ------------------------------------------------------------------------------
+sudo apt install exuberant-ctags neovim clang-format
+
+# ------------------------------------------------------------------------------
+# Vim Configuration
+# ------------------------------------------------------------------------------
+# Vim Package Manager
 if [[ ! -f "${vim_plug_dir}/plug.vim" ]]; then
   wget --directory-prefix=${vim_plug_dir} https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
 fi
 
+# Clang Format
 if [[ ! -f "${vim_dir}/clang-format.py" ]]; then
   wget --directory-prefix=${vim_dir} https://raw.githubusercontent.com/llvm/llvm-project/main/clang/tools/clang-format/clang-format.py
 fi
 
-# ------------------------------------------------------------------------------
-# Dependencies
-# ------------------------------------------------------------------------------
-sudo apt install exuberant-ctags neovim clang-format ripgrep
-
 # ------------------------------------------------------------------------------
 # NVim
 # ------------------------------------------------------------------------------
-cp --force ${script_dir}/Installer/os_vimrc ~/.vimrc
+cp --force ${installer_dir}/os_vimrc ~/.vimrc
-cp --force ${script_dir}/Installer/os_clang_format_style_file ~/_clang-format
+cp --force ${installer_dir}/os_clang_format_style_file ~/_clang-format
-cp --force ${script_dir}/Installer/unix_nvim_init.vim ~/.config/nvim/init.vim
+cp --force ${installer_dir}/os_nvim_init.vim ~/.config/nvim/init.vim
+
+# ----------------------------------------------------------------------------
+# Neovide
+# ----------------------------------------------------------------------------
+neovide_sha256=dbd0903bae5baff550406fd1e09e7ca0afc57ec855305545ae1c13485c7f1d69
+neovide_exe_sha256=fc946c3d58f6e61eef78635eec81cbbb067b02c0deffb7661254896ce5b20578
+neovide_version=0.8.0
+
+neovide_download_file=${downloads_dir}/neovide-v${neovide_version}.tar.gz.zip
+neovide_dir=${tools_dir}/neovide-v${neovide_version}-linux
+neovide_exe=${neovide_dir}/neovide
+
+neovide_url=https://github.com/neovide/neovide/releases/download/${neovide_version}/neovide-linux.tar.gz.zip
+
+if [[ ! -f "${neovide_exe}" ]]; then
+    DownloadFile "https://github.com/neovide/neovide/releases/download/${neovide_version}/neovide-linux.tar.gz.zip" ${neovide_download_file}
+    FileSHA256HashCheck ${neovide_download_file} ${neovide_sha256}
+
+    unzip -o ${neovide_download_file} -d ${neovide_dir}
+    tar xf ${neovide_dir}/neovide.tar.gz --overwrite --directory=${neovide_dir}
+    mv ${neovide_dir}/target/release/neovide ${neovide_dir}
+    rm -rf ${neovide_dir}/neovide.tar.gz
+    rm -rf ${neovide_dir}/target
+fi
+
+FileSHA256HashCheck ${neovide_exe} ${neovide_exe_sha256}
 
 # ------------------------------------------------------------------------------
 # Ctags
@@ -35,3 +116,4 @@ cp --force ${script_dir}/Installer/unix_nvim_init.vim ~/.config/nvim/init.vim
 rm --force ${bin_dir}/ctags_cpp.sh
 echo ctags --c++-kinds=+p --fields=+iaS --extra=+q --language-force=C++ \$\@ >> ${bin_dir}/ctags_cpp.sh
 chmod +x ${bin_dir}/ctags_cpp.sh
+