My Linux Workstation

1. 换源 & 更新

sudo sed -i 's/archive.ubuntu.com/mirrors.ustc.edu.cn/g' /etc/apt/sources.list
sudo apt update
sudo apt dist-upgrade

2. 安装所需软件

sudo apt install zsh autojump 
sudo apt install vim ctags
sudo apt install build-essential
sudo apt install proxychains

3. 配置

3.1 Zsh: oh-my-zsh

sh -c "$(wget https://raw.github.com/ohmyzsh/ohmyzsh/master/tools/install.sh -O -)"
# Copy .zshrc to $HOME

3.2 代理: proxychains

修改/etc/proxychains.conf末尾行：

socks4 127.0.0.1 9095

为

# V2ray
socks5 127.0.0.1 10808

3.3 VIM

3.3.1 VIM-Plug

curl -fLo ~/.vim/autoload/plug.vim --create-dirs \
    https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
# Copy .vimrc to $HOME

3.3.2 coc.nvim

(1) Update vim to 8.2

sudo add-apt-repository ppa:jonathonf/vim
sudo apt update
sudo apt install vim

(2) Install Prerequisites

# C/C++ lsp 
sudo snap install ccls
sudo apt install bear 
# Fortran lsp
pip3 install fortran-language-server 
# VIM coc-plugins
# :CocInstall coc-pyright

(3) C/C++ generate compile_commands.json

For projects using cmake like FlameMaster

# Recompile with `-DCMAKE_EXPORT_COMPILE_COMMANDS=1 option`
cmake ../Repository -DCMAKE_BUILD_TYPE=Release -DCMAKE_EXPORT_COMPILE_COMMANDS=1
cmake --build . --parallel --target install --config Release
cp compile_commands.json ../Repository/

For projects using make like OpenFOAM

See this tutorial.

Modify OpenFOAM-2.3.1/wmake/wmake:

 +#------------------------------------------------------------------------------
 +# check if bear is installed and we are not already running under bear
 +#------------------------------------------------------------------------------
 +
 +if [ -z "${RUNNING_UNDER_BEAR}" ] ; then
 +    if ! bear --version > /dev/null ; then
 +        echo "WARNING: bear is not installed -> There will be no compile_commands.json output." 1>&2
 +    elif printf '%s\n%s\n' "bear 3.0.0" "$(bear --version)" | sort -V -C ; then
 +        #bear version >= 3.0.0
 +        export RUNNING_UNDER_BEAR=true
 +        mkdir -p $FOAM_LIBBIN
 +        bear --append --output $FOAM_LIBBIN/../compile_commands.json -- wmake $@
 +        exit $?
 +    elif printf '%s\n%s\n' "bear 2.0.0" "$(bear --version)" | sort -V -C ; then
 +        #bear version >= 2.0.0
 +        export RUNNING_UNDER_BEAR=true
 +        mkdir -p $FOAM_LIBBIN
 +        bear --append -o $FOAM_LIBBIN/../compile_commands.json wmake $@
 +        exit $?
 +    else
 +        echo "WARNING: bear version is below 2.0.0 -> There will be no compile_commands.json output." 1>&2
 +    fi
 +fi

Add script vscode-settings to OpenFOAM-2.3.1/bin/tools.

Generate VSCode setting files:

cd $WM_PROJECT_DIR
mkdir .vscode
./bin/tools/vscode-setting > .vscode/settings.json
# Clean OpenFOAM installation
wclean all
# Re-build
./Allwmake

Create softlink for VIM/coc.nvim:

cd $WM_PROJECT_DIR
ln -s ~/OpenFOAM/OpenFOAM-2.3.1/platforms/linux64GccDPOpt/compile_commands.json ./compile_commands.json

(4) Appendix:

coc-settings.json under ~/.vim:

{
    "languageserver": {
        "ccls": {
            "command": "ccls",
            "filetypes": ["c", "cc", "cpp", "c++", "objc", "objcpp"],
            "rootPatterns": [".ccls", "compile_commands.json", ".git/", ".root"],
            "initializationOptions": {
                "cache": {
                    "directory": ".cache/ccls"
                },
                "highlight": {"lsRanges": true }
            }
        },
        "fortran": {
            "command": "fortls",
            "filetypes": ["fortran"],
            "rootPatterns": [".fortls", ".git/"]
        }
}

3.4 Remote Desktop (Zerotier+VNC)

3.4.1 Zerotier

Follow these steps or this tutorial

Create an account at Zerotier
Create A Network and copy the Network ID
Install Zerotier clients on your computers. Here I've a Linux workstation running Ubuntu 18.04 and a laptop running Windows 10
- For Linux:
```
sudo zerotier-cli join YOUR_NETWORK_ID
```
- For Windows: Right click the zerotier tray icon and Join Network.
Autorize these two devices in the zerotier web-ui. You can see the virtual IP address of each device.

3.4.2 Install vnc-server on Ubuntu 18.04

Install packages

# Packages
sudo apt install tigervnc-standalone-server tigervnc-xorg-extension tigervnc-viewer

1. Set the vnc password
```
tigervncpasswd
```

Set-up vnc desktop environment
Create ~/.vnc/xstartup and paste the following content to it. (I have gnome desktop installed.)

#!/bin/sh
# Start Gnome 3 Desktop 
[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup
[ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources
vncconfig -iconic &
dbus-launch --exit-with-session gnome-session &

1. Start vnc-server and listening from anywhere
```
tigervncserver -localhost no
```
1. Check the vnc server port
```
tigervncserver -list
```
Output:
```
TigerVNC server sessions:

X DISPLAY #	PROCESS ID
:1		9332
```
For example, :1 is the port which is used to connect to the server in the viewer's side.

3.4.3 Install vnc-viewer at Windows 10

Download and install Real VNC
Click File->New connection and input the IP address of Ubuntu at Zerotier network. For example: 192.168.29.110:1. :1 stands for the port of the vnc server.

TimoLin/my_linux