Add fixes

[JoannaaKL]

No description provided.

[Copilot]

Pull Request Overview

Refactors the dotfiles bootstrap to be more robust and idempotent while adding automation and documentation. Key updates include a rewritten install script with safer patterns, modular helper functions, Codespaces management utilities, and CI ShellCheck linting.

• Refactored install.sh with logging, preflight checks, safer symlinking, and tool installers
• Added helper abstractions plus Codespaces export/cleanup scripts
• Introduced ShellCheck CI workflow and comprehensive README

Reviewed Changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 6 comments.

Show a summary per file

File	Description
install.sh	Rewritten bootstrap script with structured functions, logging, and idempotent installers
helpers.sh	Introduces reusable install wrappers and environment-specific setup logic
export_codespace_cfg	Adds managed SSH config export with block replacement logic
clean-codespaces.sh	Adds script to prune shutdown Codespaces (supports dry run)
README.md	Documents features, usage, and future ideas
.github/workflows/shellcheck.yml	Adds CI workflow to lint shell scripts

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[Copilot]

nullglob is enabled but never restored, changing global globbing semantics for the remainder of the script (could cause later globs to silently disappear). Save and restore original options or run the font detection in a subshell: ( shopt -s nullglob nocaseglob; meslo_candidates=(...); ... ).

Suggested change

	shopt -s nullglob nocaseglob 2>/dev/null || true
	local meslo_candidates=("$dest"/*Meslo*"Nerd Font"*.ttf)
	if (( ${#meslo_candidates[@]} > 0 )); then
	log "Meslo Nerd Font already present"; return 0; fi
	shopt -u nocaseglob 2>/dev/null || true
	local meslo_candidates_count
	meslo_candidates_count=$(
	( shopt -s nullglob nocaseglob
	files=("$dest"/*Meslo*"Nerd Font"*.ttf)
	echo "${#files[@]}"
	)
	)
	if (( meslo_candidates_count > 0 )); then
	log "Meslo Nerd Font already present"; return 0; fi

[Copilot]

Extracting the AppImage into the repository directory (SCRIPT_DIR) pollutes the working tree with squashfs-root and the binary, potentially leading to accidental commits. Use a cache location like "$HOME/.local/share/neovim-appimage" or mktemp for extraction before symlinking.

Suggested change

	local appimage_url="https://github.com/neovim/neovim/releases/latest/download/nvim.appimage"
	local appimage_path="$SCRIPT_DIR/nvim.appimage"
	curl -fsSL -o "$appimage_path" "$appimage_url"
	chmod +x "$appimage_path"
	"$appimage_path" --appimage-extract >/dev/null
	ln -sfn "$SCRIPT_DIR/squashfs-root/usr/bin/nvim" "$HOME/bin/nvim"
	local nvim_cache_dir="$HOME/.local/share/neovim-appimage"
	mkdir -p "$nvim_cache_dir"
	local appimage_url="https://github.com/neovim/neovim/releases/latest/download/nvim.appimage"
	local appimage_path="$nvim_cache_dir/nvim.appimage"
	if [[ ! -f "$appimage_path" ]]; then
	curl -fsSL -o "$appimage_path" "$appimage_url"
	chmod +x "$appimage_path"
	fi
	# Extract only if not already extracted
	if [[ ! -d "$nvim_cache_dir/squashfs-root" ]]; then
	(cd "$nvim_cache_dir" && "$appimage_path" --appimage-extract >/dev/null)
	fi
	ln -sfn "$nvim_cache_dir/squashfs-root/usr/bin/nvim" "$HOME/bin/nvim"