setup.sh

#!/usr/bin/env bash
EXCEPTION=('.gitignore' '.git' '.gitmodules' 'README.md' '.' '..' 'setup.sh' '.config')
BACKUP_FOLDER='.dotfiles_backup'

# Download Git submodules
cd "$HOME/.dotfiles"
git submodule init
git submodule update --remote || git submodule update --recursive
cd $HOME

# Select only the config files
REGEX=$(printf '%q|' "${EXCEPTION[@]}")
REGEX=${REGEX::-1}
REGEX="^($REGEX)$"
FILE_LIST=$(ls -a .dotfiles/ | egrep -v $REGEX)

# Backup conflicting config files
mkdir $BACKUP_FOLDER
mv $FILE_LIST $BACKUP_FOLDER 2>/dev/null

# Remove backup folder if empty
rmdir $BACKUP_FOLDER 2>/dev/null

# Create symlink
for filename in $FILE_LIST; do
	ln -s ".dotfiles/$filename" .
done


##
## Vim configuration
##

# Add gopls for Go linting with ALE
GO111MODULE=on go get golang.org/x/tools/gopls@latest || echo 'Could not go get gopls. Go linting in Vim will not work optimally'


##
## .config configuration
##

mkdir -p "$HOME/.config"
CONFIG_FILES=$(ls -a .dotfiles/.config/ | egrep -v '^\.{1,2}$')

# Backup conflicting config files
for filename in $CONFIG_FILES; do
	mv "$HOME/.config/$filename" "$HOME/$BACKUP_FOLDER" 2>/dev/null
done

# Create symlinks
for filename in $CONFIG_FILES; do
	ln -s "$HOME/.dotfiles/.config/$filename" "$HOME/.config/$filename"
done

##
## Neovim dependency checks
##

has() { command -v "$1" >/dev/null 2>&1; }

echo
echo "Neovim optional dependencies:"

has gcc      || echo "  gcc      → treesitter parser compilation"
has npm      || echo "  npm      → pyright (Python LSP)"
has cargo    || echo "  cargo    → rust_analyzer, rustfmt"
has python3  || echo "  python3  → black, ruff"
has clang    || echo "  clang    → clangd, clang-format"
{ has xclip || has wl-copy; } || echo "  xclip/wl-copy → system clipboard"

echo
echo 'Environnement has been set up'