install split

2026-03-19 08:02:02 +01:00
parent 508eddef62
commit 0b11a0d315
3 changed files with 354 additions and 212 deletions
--- a/install-stow.sh
+++ b/install-stow.sh
@@ -0,0 +1,149 @@
+#!/usr/bin/env bash
+# install-stow.sh: Stow dotfile packages into $HOME with per-package prompts.
+# Packages that are already fully stowed are skipped automatically.
+# Run after install-deps.sh.
+
+set -euo pipefail
+
+DOTFILES_DIR="$(cd "$(dirname "$0")" && pwd)"
+
+# ---------------------------------------------------------------------------
+# Helpers
+# ---------------------------------------------------------------------------
+
+ok()     { echo "  ✓ $*"; }
+info()   { echo "  → $*"; }
+warn()   { echo "  ⚠ $*"; }
+header() { echo ""; echo "==> $*"; }
+
+# Ask yes/no. Returns 0 for yes, 1 for no.
+ask_yn() {
+  local prompt="$1"
+  while true; do
+    read -r -p "$prompt [y/N] " answer
+    case "${answer,,}" in
+      y|yes) return 0 ;;
+      n|no|"") return 1 ;;
+      *) echo "    Please answer y or n." ;;
+    esac
+  done
+}
+
+# ---------------------------------------------------------------------------
+# Check if a package is already fully stowed
+# (every file in the package has a correct symlink in $HOME)
+# ---------------------------------------------------------------------------
+
+is_stowed() {
+  local pkg="$1"
+  local pkg_dir="$DOTFILES_DIR/$pkg"
+  local all_ok=true
+
+  while IFS= read -r -d '' src; do
+    local rel="${src#$pkg_dir/}"
+    local target="$HOME/$rel"
+    # Must exist as a symlink pointing at this exact source
+    if [[ ! -L "$target" ]] || [[ "$(readlink -f "$target")" != "$(readlink -f "$src")" ]]; then
+      all_ok=false
+      break
+    fi
+  done < <(find "$pkg_dir" -type f -print0 2>/dev/null)
+
+  $all_ok
+}
+
+# List any real files (non-symlinks) that would be overwritten by stowing
+conflicts_for() {
+  local pkg="$1"
+  local pkg_dir="$DOTFILES_DIR/$pkg"
+  local conflicts=()
+
+  while IFS= read -r -d '' src; do
+    local rel="${src#$pkg_dir/}"
+    local target="$HOME/$rel"
+    if [[ -e "$target" ]] && [[ ! -L "$target" ]]; then
+      conflicts+=("$target")
+    fi
+  done < <(find "$pkg_dir" -type f -print0 2>/dev/null)
+
+  printf '%s\n' "${conflicts[@]}"
+}
+
+# ---------------------------------------------------------------------------
+# Collect packages (top-level dirs, skip hidden)
+# ---------------------------------------------------------------------------
+
+header "Stowing dotfile packages"
+
+PACKAGES=()
+for d in "$DOTFILES_DIR"/*/; do
+  pkg="$(basename "$d")"
+  [[ "$pkg" == .* ]] && continue
+  PACKAGES+=("$pkg")
+done
+
+STOWED=()
+SKIPPED=()
+
+for pkg in "${PACKAGES[@]}"; do
+  echo ""
+  echo "Package: $pkg"
+
+  if is_stowed "$pkg"; then
+    ok "already stowed — skipping"
+    STOWED+=("$pkg (already)")
+    continue
+  fi
+
+  # Show conflicts, if any
+  mapfile -t conflicts < <(conflicts_for "$pkg")
+  if [[ ${#conflicts[@]} -gt 0 ]]; then
+    warn "Stowing would overwrite these real files:"
+    for f in "${conflicts[@]}"; do
+      echo "      $f"
+    done
+    echo "    Back them up or delete them first, then re-run."
+  fi
+
+  if ask_yn "  Stow '$pkg'?"; then
+    stow --dir="$DOTFILES_DIR" --target="$HOME" --restow "$pkg"
+    ok "stowed"
+    STOWED+=("$pkg")
+  else
+    info "skipped"
+    SKIPPED+=("$pkg")
+  fi
+done
+
+# ---------------------------------------------------------------------------
+# Configure shell (after stowing zshrc)
+# ---------------------------------------------------------------------------
+
+header "Shell configuration"
+
+if [[ ! -f "$HOME/.zshrc" ]]; then
+  touch "$HOME/.zshrc"
+fi
+
+if ! grep -q 'eval "$(starship init zsh)"' "$HOME/.zshrc"; then
+  echo 'eval "$(starship init zsh)"' >> "$HOME/.zshrc"
+  ok "Added starship init to ~/.zshrc"
+else
+  ok "Starship already configured in ~/.zshrc"
+fi
+
+# ---------------------------------------------------------------------------
+# Summary
+# ---------------------------------------------------------------------------
+
+header "Summary"
+
+if [[ ${#STOWED[@]} -gt 0 ]]; then
+  echo "  Stowed:  ${STOWED[*]}"
+fi
+if [[ ${#SKIPPED[@]} -gt 0 ]]; then
+  echo "  Skipped: ${SKIPPED[*]}"
+fi
+
+echo ""
+echo "Done."