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random_dev_tricks.md

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Random Pro-tips

  1. Select venv in Jupyter notebook: conda install nb_conda_kernels;

  2. Maya install numpy: unzip whl file and copy the folder to %MAYA_INSTALL_DIR%\Python\Lib\site-packages;

  3. Pycharm tricks from zhihu (Chinese);

  4. Specify TeX compiler in your document, add !TEX TS-program = lualatex. This directive is understood by most TeX IDEs. More TeX directives see here;

  5. While annotating a codebase (C++ for example), in Visual Studio, change color of XML Doc Comment (in Tools->Options->Environment->Fonts and Colors). Start annotation using /// instead of regular comment //;

  6. To work with different ssh identities on the same machine, simply change ~/.ssh/config:

    # Personal GitHub account
Host github.com
 HostName github.com
 User git
 AddKeysToAgent yes
 IdentityFile ~/.ssh/your_customized_id_rsa

  7. One-shot git difftool for specific file extensions

    # set difftool
git config --global diff.tool bc
git config --global difftool.bc.path "c:/Program Files/Beyond Compare 4/bcomp.exe"

# diff in one shot, -d for dir-diff
git difftool -d commit_id_1 commit_id_2 -- '*.cpp' '*.hpp'

Misc troubleshooting

  1. WSL doesn't start on win10. Solution;

  2. xelatex running slow. Try to delete texlive/${version}/texmf-var/fonts/cache;

  3. If debugger fails to stop at breakpoint, maybe you forgot to generate debugging symbol (duh..., to verify this, use objdump);

  4. Linux is case-sensitive but Windows is not, it may cause problem with cross-platform code. Here is a solution to make windows folders case-sensitive

  5. Fix git connection issues on WSL:

    touch ~/.ssh/config
chmod 755 ~/.ssh/config
sudo nano ~/.ssh/config
# add the following to this config
Host github.com
  Hostname ssh.github.com
  Port 22
  
# restart ssh
sudo /etc/init.d/ssh restart
# verify
ssh -T [email protected]

Copy-and-paste programming from Stackoverflow

  1. Find and replace a string in multiple files using find and sed (note the trailing \;):
find /home/user/directory -name \*.c -exec sed -i "s/cybernetnews/cybernet/g" {} \;

Misc.

Configure VS Code for Linux C++ Project

Ref:

Using C++ and WSL in VS Code

Developing in WSL

Target Debugging and Launching

Quick Start to Use Visual Studio Code for C++ Programmers in Linux

C++ Development using Visual Studio Code, CMake and LLDB

Steps:

  1. Install VS Code extensions: WSL remote development, C/C++ extension in Windows;
  2. Configure WSL:
sudo apt-get update
sudo apt-get install build-essential gdb cmake
sudo apt-get install freeglut3  freeglut3-dev binutils-gold libglew-dev mesa-common-dev libglew1.5-dev libglm-dev #OpenGL optional

  1. Install X client (xming for example, then forward X using export DISPLAY=:0; a modern X client is mobaxterm

  2. Configure launch.json for your project;

  3. In WSL, from project folder, type code ..

Useful Configs

My git config:

[alias]
	co = checkout
	br = branch
	ci = commit
	st = status
	dt = difftool -d
[core]
	autocrlf = true
[user]
	email = xxx
	name = xxx
# Make sure you have meld installed
[diff] 
	tool = meld
	guitool = meld
[difftool]
	prompt = false
[difftool "meld"]
	cmd = meld \"$LOCAL\" \"$REMOTE\"

sublime

{
	"font_size": 13,
    "word_wrap": "true",
    "match_brackets_angle": true // especially for dealing with ugly stl output...
}