Update nvim setup script

docs/Nvim_setup.sh

@@ -7,7 +7,7 @@ PYTHON_INSTALLED=true
 
 # If Python has been installed, then we need to know whether Python is provided
 # by the system, or you have already installed Python under your HOME.
-SYSTEM_PYTHON=true
+SYSTEM_PYTHON=false
 
 # If SYSTEM_PYTHON is false, we need to decide whether to install
 # Anaconda (INSTALL_ANACONDA=true) or Miniconda (INSTALL_ANACONDA=false)
@@ -16,6 +16,10 @@ INSTALL_ANACONDA=false
 # Whether to add the path of the installed executables to system PATH
 ADD_TO_SYSTEM_PATH=true
 
+# select which shell we are using
+USE_ZSH_SHELL=true
+USE_BASH_SHELL=false
+
 if [[ ! -d "$HOME/packages/" ]]; then
     mkdir -p "$HOME/packages/"
 fi
@@ -27,21 +31,21 @@ fi
 #######################################################################
 #                    Anaconda or miniconda install                    #
 #######################################################################
+if [[ "$INSTALL_ANACONDA" = true ]]; then
+    CONDA_DIR=$HOME/tools/anaconda
+    CONDA_NAME=Anaconda.sh
+    CONDA_LINK="https://mirrors.tuna.tsinghua.edu.cn/anaconda/archive/Anaconda3-2019.10-Linux-x86_64.sh"
+else
+    CONDA_DIR=$HOME/tools/miniconda
+    CONDA_NAME=Miniconda.sh
+    CONDA_LINK="https://mirrors.tuna.tsinghua.edu.cn/anaconda/miniconda/Miniconda3-py37_4.8.2-Linux-x86_64.sh"
+fi
+
 if [[ ! "$PYTHON_INSTALLED" = true ]]; then
     echo "Installing Python in user HOME"
 
     SYSTEM_PYTHON=false
 
-    if [[ "$INSTALL_ANACONDA" = true ]]; then
-        CONDA_DIR=$HOME/tools/anaconda
-        CONDA_NAME=Anaconda.sh
-        CONDA_LINK="https://repo.anaconda.com/archive/Anaconda3-2019.10-Linux-x86_64.sh"
-    else
-        CONDA_DIR=$HOME/tools/miniconda
-        CONDA_NAME=Miniconda.sh
-        CONDA_LINK="https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh"
-    fi
-
     echo "Downloading and installing conda"
 
     if [[ ! -f "$HOME/packages/$CONDA_NAME" ]]; then
@@ -55,18 +59,16 @@ if [[ ! "$PYTHON_INSTALLED" = true ]]; then
     bash "$HOME/packages/$CONDA_NAME" -b -p "$CONDA_DIR"
 
     # Setting up environment variables
-    if [[ "$ADD_TO_SYSTEM_PATH" = true ]]; then
+    if [[ "$ADD_TO_SYSTEM_PATH" = true ]] && [[ "$USE_BASH_SHELL" = true ]]; then
         echo "export PATH=\"$CONDA_DIR/bin:\$PATH\"" >> "$HOME/.bash_profile"
     fi
-    source "$HOME/.bash_profile"
 else
     echo "Python is already installed. Skip installing it."
 fi
 
-
 # Install some Python packages used by Neovim plugins.
 echo "Installing Python packages"
-PY_PACKAGES="pynvim python-language-server[all] black vim-vint"
+declare -a py_packages=("pynvim" 'python-language-server[all]' "black" "vim-vint")
 
 if [[ "$SYSTEM_PYTHON" = true ]]; then
     echo "Using system Python to install $(PY_PACKAGES)"
@@ -74,10 +76,14 @@ if [[ "$SYSTEM_PYTHON" = true ]]; then
     # If we use system Python, we need to install these Python packages under
     # user HOME, since we do not have permissions to install them under system
     # directories.
-    pip install --user $PY_PACKAGES
+    for p in "${py_packages[@]}"; do
+        pip install --user "$p"
+    done
 else
     echo "Using custom Python to install $(PY_PACKAGES)"
-    pip install $PY_PACKAGES
+    for p in "${py_packages[@]}"; do
+        "$CONDA_DIR/bin/pip" install "$p"
+    done
 fi
 
 
@@ -87,7 +93,7 @@ fi
 RIPGREP_DIR=$HOME/tools/ripgrep
 RIPGREP_SRC_NAME=$HOME/packages/ripgrep.tar.gz
 RIPGREP_LINK="https://github.com/BurntSushi/ripgrep/releases/download/12.0.0/ripgrep-12.0.0-x86_64-unknown-linux-musl.tar.gz"
-if [[ ! "$(command -v rg)" ]]; then
+if [[ -z "$(command -v rg)" ]] && [[ ! -f "$RIPGREP_DIR/rg" ]]; then
     echo "Install ripgrep"
     if [[ ! -f $RIPGREP_SRC_NAME ]]; then
         echo "Downloading ripgrep and renaming"
@@ -101,7 +107,7 @@ if [[ ! "$(command -v rg)" ]]; then
         tar zxvf "$RIPGREP_SRC_NAME" -C "$RIPGREP_DIR" --strip-components 1
     fi
 
-    if [[ "$ADD_TO_SYSTEM_PATH" = true ]]; then
+    if [[ "$ADD_TO_SYSTEM_PATH" = true ]] && [[ "$USE_BASH_SHELL" = true ]]; then
         echo "export PATH=\"$RIPGREP_DIR:\$PATH\"" >> "$HOME/.bash_profile"
     fi
 else
@@ -121,14 +127,14 @@ if [[ ! -f "$CTAGS_DIR/bin/ctags" ]]; then
         mkdir -p "$CTAGS_SRC_DIR"
     else
         # Prevent an incomplete download.
-        rm -rf "$CTAGS_SRC_DIR/"
+        rm -rf "$CTAGS_SRC_DIR"
     fi
 
-    git clone $CTAGS_LINK $CTAGS_SRC_DIR && cd "$CTAGS_SRC_DIR"
+    git clone "$CTAGS_LINK" "$CTAGS_SRC_DIR" && cd "$CTAGS_SRC_DIR"
     ./autogen.sh && ./configure --prefix="$CTAGS_DIR"
     make -j && make install
 
-    if [[ "$ADD_TO_SYSTEM_PATH" = true ]]; then
+    if [[ "$ADD_TO_SYSTEM_PATH" = true ]] && [[ "$USE_BASH_SHELL" = true ]]; then
         echo "export PATH=\"$CTAGS_DIR/bin:\$PATH\"" >> "$HOME/.bash_profile"
     fi
 else
@@ -158,7 +164,7 @@ if [[ ! -f "$NVIM_DIR/bin/nvim" ]]; then
     echo "Extracting neovim"
     tar zxvf "$NVIM_SRC_NAME" --strip-components 1 -C "$NVIM_DIR"
 
-    if [[ "$ADD_TO_SYSTEM_PATH" = true ]]; then
+    if [[ "$ADD_TO_SYSTEM_PATH" = true ]] && [[ "$USE_BASH_SHELL" = true ]]; then
         echo "export PATH=\"$NVIM_DIR/bin:\$PATH\"" >> "$HOME/.bash_profile"
     fi
 else
@@ -167,13 +173,15 @@ fi
 
 echo "Setting up config and installing plugins"
 if [[ -d "$NVIM_CONFIG_DIR" ]]; then
-    mv "$NVIM_CONFIG_DIR" $NVIM_CONFIG_DIR.backup
+    mv "$NVIM_CONFIG_DIR" "$NVIM_CONFIG_DIR.backup"
 fi
 
 git clone https://github.com/jdhao/nvim-config.git "$NVIM_CONFIG_DIR"
 
 echo "Installing vim-plug"
-curl -fLo "$NVIM_SITE_DIR/autoload/plug.vim" --create-dirs https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
+curl -fLo "$NVIM_SITE_DIR/autoload/plug.vim" --create-dirs https://cdn.jsdelivr.net/gh/junegunn/vim-plug/plug.vim
+
+echo "Installing plugins"
 "$NVIM_DIR/bin/nvim" +PlugInstall +qall
 
 echo "Finished installing Neovim and its dependencies!"