install-ccswitcher.sh

gistfile1.txt

#!/usr/bin/env bash
set -euo pipefail

# ── constants ──────────────────────────────────────────────────────────────────
REPO_URL="https://github.com/dkotama/ccsettings-switcher.git"
INSTALL_DIR="$HOME/.ccsettings-switcher"
SCRIPT_NAME="cc-switch.sh"
ALIAS_NAME="ccswitch"

# ── helpers ────────────────────────────────────────────────────────────────────
info()    { echo "  $1"; }
success() { echo "✓ $1"; }
warn()    { echo "⚠ $1"; }
die()     { echo "✗ Error: $1" >&2; exit 1; }

require_cmd() {
  command -v "$1" &>/dev/null || die "'$1' is required but not installed. $2"
}

detect_shell_config() {
  local shell_name
  shell_name="$(basename "${SHELL:-}")"
  case "$shell_name" in
    zsh)  echo "$HOME/.zshrc" ;;
    bash) echo "$HOME/.bashrc" ;;
    ksh)  echo "$HOME/.kshrc" ;;
    fish) echo "$HOME/.config/fish/config.fish" ;;
    *)
      # Fallback: macOS defaults to zsh, Linux to bash
      if [[ "$(uname)" == "Darwin" ]]; then
        echo "$HOME/.zshrc"
      else
        echo "$HOME/.bashrc"
      fi
      ;;
  esac
}

inject_alias() {
  local config="$1" script_path="$2"
  local alias_line="${ALIAS_NAME}=\"${script_path}\""

  if grep -qE "^alias ${ALIAS_NAME}=" "$config" 2>/dev/null; then
    local existing
    existing="$(grep -E "^alias ${ALIAS_NAME}=" "$config")"
    if [[ "$existing" == *"$script_path"* ]]; then
      success "Alias already correct in $config"
      return
    fi
    # Update stale alias in-place (works on both GNU and BSD sed)
    warn "Updating stale alias in $config"
    sed -i.bak "s|^alias ${ALIAS_NAME}=.*|alias ${alias_line}|" "$config"
    rm -f "${config}.bak"
    success "Alias updated"
  else
    printf '\n# ccsettings-switcher\nalias %s\n' "$alias_line" >> "$config"
    success "Alias added to $config"
  fi
}

# ── preflight checks ───────────────────────────────────────────────────────────
echo ""
echo "ccsettings-switcher installer"
echo "────────────────────────────────"

require_cmd git  "Install git: https://git-scm.com/downloads"
require_cmd jq   "Install jq:  sudo apt install jq  /  brew install jq"

# ── clone or update ────────────────────────────────────────────────────────────
if [[ -d "$INSTALL_DIR/.git" ]]; then
  info "Existing installation found — pulling latest..."
  git -C "$INSTALL_DIR" pull --ff-only
  success "Repository updated"
elif [[ -d "$INSTALL_DIR" ]]; then
  die "$INSTALL_DIR exists but is not a git repo. Remove it and re-run."
else
  info "Cloning repository to $INSTALL_DIR..."
  git clone --depth=1 "$REPO_URL" "$INSTALL_DIR"
  success "Repository cloned"
fi

# ── verify and make executable ─────────────────────────────────────────────────
SCRIPT_PATH="$INSTALL_DIR/$SCRIPT_NAME"
[[ -f "$SCRIPT_PATH" ]] || die "$SCRIPT_NAME not found in repository."
chmod +x "$SCRIPT_PATH"
success "$SCRIPT_NAME is executable"

# ── shell config ───────────────────────────────────────────────────────────────
CONFIG_FILE="$(detect_shell_config)"

# Ensure config file exists (e.g. first-time zsh user)
[[ -f "$CONFIG_FILE" ]] || touch "$CONFIG_FILE"

inject_alias "$CONFIG_FILE" "$SCRIPT_PATH"

# ── fish special case: fish uses 'function', not alias ────────────────────────
if [[ "$CONFIG_FILE" == *.fish ]]; then
  warn "Fish shell detected. Adding function instead of alias."
  cat >> "$CONFIG_FILE" <<FISH

# ccsettings-switcher
function ${ALIAS_NAME}
    bash "$SCRIPT_PATH" \$argv
end
FISH
fi

# ── done ───────────────────────────────────────────────────────────────────────
echo ""
echo "Installation complete."
echo "Reload your shell:  source $CONFIG_FILE"
echo "Then run:           $ALIAS_NAME <profile-name>"
echo ""