Add bootstrap dry-run safety checks

.github/workflows/test.yml

@@ -180,6 +180,29 @@ jobs:
           XDG_CONFIG_HOME=/tmp/chopsticks-default ./install.sh --configure-only --yes
           grep -q "let g:chopsticks_profile = 'engineer'" /tmp/chopsticks-default/chopsticks.vim
 
+      - name: Verify bootstrap dry-run safety
+        run: |
+          CHOPSTICKS_DEST=/tmp/chopsticks-bootstrap ./get.sh --dry-run --profile=minimal \
+            | tee /tmp/chopsticks-get-dry-run.txt
+          grep -q 'Would clone' /tmp/chopsticks-get-dry-run.txt
+          test ! -e /tmp/chopsticks-bootstrap
+
+          mkdir -p /tmp/not-chopsticks
+          git init /tmp/not-chopsticks
+          git -C /tmp/not-chopsticks remote add origin https://github.com/example/not-chopsticks.git
+          if CHOPSTICKS_DEST=/tmp/not-chopsticks ./get.sh --dry-run; then
+            echo "Expected get.sh to reject non-chopsticks repo"
+            exit 1
+          fi
+
+          mkdir -p /tmp/chopsticks-existing
+          git init /tmp/chopsticks-existing
+          git -C /tmp/chopsticks-existing remote add origin https://github.com/m1ngsama/chopsticks.git
+          touch /tmp/chopsticks-existing/install.sh /tmp/chopsticks-existing/.vimrc
+          CHOPSTICKS_DEST=/tmp/chopsticks-existing ./get.sh --dry-run --yes \
+            | tee /tmp/chopsticks-get-existing.txt
+          grep -q 'Would update existing chopsticks repo' /tmp/chopsticks-get-existing.txt
+
   docs:
     runs-on: ubuntu-latest
     steps:

CHANGELOG.md

@@ -16,6 +16,8 @@
 - `install.sh --profile=minimal|engineer|full` for scripted profile selection
 - `install.sh --dry-run` to show the resolved profile/config path without writes
 - `install.sh --configure-only` to update local profile config without reinstalling
+- `get.sh --dry-run` for safe bootstrap previews before clone/update/install
+- `CHOPSTICKS_DEST=/absolute/path` to test or install the bootstrap target elsewhere
 
 ### Fixed
 
@@ -53,6 +55,7 @@
 - tmux integration is written as a managed block so future installer runs can
   update it without appending duplicate bindings
 - Installer cleanup now restores the cursor after interrupted checkbox menus
+- Bootstrap dry-run now refuses unrelated existing git repos before any writes
 - Skip 2 more built-in plugins: openPlugin, manpager (10 → 12 total)
 - Remove deprecated `set ttyfast` (no-op since Vim 8)
 - Add `grepprg=rg --vimgrep` — `:grep` now uses ripgrep + quickfix

QUICKSTART.md

@@ -7,6 +7,7 @@ Five minutes from zero to a working Vim setup.
 ```bash
 curl -fsSL https://raw.githubusercontent.com/m1ngsama/chopsticks/main/get.sh | bash
 curl -fsSL https://raw.githubusercontent.com/m1ngsama/chopsticks/main/get.sh | bash -s -- --profile=minimal
+curl -fsSL https://raw.githubusercontent.com/m1ngsama/chopsticks/main/get.sh | bash -s -- --dry-run --profile=full
 ```
 
 Open vim. First launch auto-installs plugins — **wait 30-60s, don't close vim**. Restart when done.

README.md

@@ -50,6 +50,7 @@ chopsticks gives you a production-ready Vim config in one command. Pure VimScrip
 ```bash
 curl -fsSL https://raw.githubusercontent.com/m1ngsama/chopsticks/main/get.sh | bash
 curl -fsSL https://raw.githubusercontent.com/m1ngsama/chopsticks/main/get.sh | bash -s -- --profile=minimal
+curl -fsSL https://raw.githubusercontent.com/m1ngsama/chopsticks/main/get.sh | bash -s -- --dry-run --profile=full
 ```
 
 Or manually:
@@ -60,6 +61,8 @@ cd ~/.vim && ./install.sh --profile=engineer
 ```
 
 Supports macOS (brew), Debian/Ubuntu (apt), Arch (pacman), Fedora (dnf).
+Set `CHOPSTICKS_DEST=/absolute/path` before running `get.sh` to install
+somewhere other than `~/.vim`.
 
 First launch installs plugins automatically (30-60s). Restart vim when done.
 Use `./install.sh --dry-run --profile=full` to inspect the resolved profile and

get.sh

@@ -4,11 +4,37 @@
 # Usage:
 #   curl -fsSL https://raw.githubusercontent.com/m1ngsama/chopsticks/main/get.sh | bash
 #   curl -fsSL https://raw.githubusercontent.com/m1ngsama/chopsticks/main/get.sh | bash -s -- --yes
+#   CHOPSTICKS_DEST=/absolute/path bash get.sh --dry-run
 
 set -eo pipefail
 
 REPO="https://github.com/m1ngsama/chopsticks.git"
-DEST="$HOME/.vim"
+DEST="${CHOPSTICKS_DEST:-$HOME/.vim}"
+DRY_RUN=0
+INSTALLER_ARGS=()
+
+usage() {
+    cat <<'EOF'
+Usage: get.sh [OPTIONS] [INSTALLER_OPTIONS]
+
+Options:
+  --dry-run        Show what would happen without cloning, pulling, or installing
+  --help, -h       Show this help and exit
+
+Environment:
+  CHOPSTICKS_DEST  Absolute install path (default: ~/.vim)
+
+All other options are passed to install.sh after clone/update.
+EOF
+}
+
+for arg in "$@"; do
+    case "$arg" in
+        --dry-run) DRY_RUN=1 ;;
+        --help|-h) usage; exit 0 ;;
+        *) INSTALLER_ARGS+=("$arg") ;;
+    esac
+done
 
 if [[ -t 1 ]] && [[ -z "${NO_COLOR:-}" ]]; then
     GREEN='\033[0;32m'; YELLOW='\033[1;33m'; RED='\033[0;31m'; BOLD='\033[1m'; NC='\033[0m'
@@ -19,6 +45,12 @@ ok()   { echo -e "${GREEN}[OK]${NC}  $1"; }
 warn() { echo -e "${YELLOW}[!]${NC}  $1"; }
 die()  { echo -e "${RED}[FATAL]${NC} $1" >&2; exit 1; }
 step() { echo -e "\n${BOLD}==> $1${NC}"; }
+info() { echo "     $1"; }
+
+case "$DEST" in
+    /*) ;;
+    *) die "CHOPSTICKS_DEST must be an absolute path: $DEST" ;;
+esac
 
 repo_origin() {
     git -C "$DEST" config --get remote.origin.url 2>/dev/null || true
@@ -42,6 +74,7 @@ echo -e "${BOLD}chopsticks — One-command installer${NC}"
 echo "----------------------------------"
 echo "  Repo: $REPO"
 echo "  Dest: $DEST"
+[[ $DRY_RUN -eq 1 ]] && echo "  Mode: dry-run"
 
 # ── git ───────────────────────────────────────────────────────────────────────
 step "Checking for git"
@@ -65,22 +98,32 @@ if [[ -d "$DEST/.git" ]]; then
     if ! is_chopsticks_repo "$ORIGIN"; then
         die "$DEST is a git repo, but it does not look like chopsticks.
   origin: ${ORIGIN:-none}
-  Back it up first:  mv ~/.vim ~/.vim.bak
+  Back it up first:  mv \"$DEST\" \"$DEST.bak\"
   Then re-run:       curl -fsSL https://raw.githubusercontent.com/m1ngsama/chopsticks/main/get.sh | bash"
     fi
     [[ -f "$DEST/install.sh" && -f "$DEST/.vimrc" ]] || \
         die "$DEST looks incomplete. Expected install.sh and .vimrc.
-  Back it up first:  mv ~/.vim ~/.vim.bak
+  Back it up first:  mv \"$DEST\" \"$DEST.bak\"
   Then re-run:       curl -fsSL https://raw.githubusercontent.com/m1ngsama/chopsticks/main/get.sh | bash"
+    if [[ $DRY_RUN -eq 1 ]]; then
+        info "Would update existing chopsticks repo at $DEST"
+        info "Would run: bash install.sh ${INSTALLER_ARGS[*]:-(no installer options)}"
+        exit 0
+    fi
     warn "$DEST already exists — pulling latest changes"
     git -C "$DEST" pull --ff-only origin main 2>/dev/null || \
         warn "Could not pull latest — using existing version (run: git -C ~/.vim pull)"
     ok "Repository updated ($(git -C "$DEST" describe --tags 2>/dev/null || git -C "$DEST" rev-parse --short HEAD))"
 elif [[ -d "$DEST" ]]; then
-    die "$HOME/.vim exists but is not a chopsticks git repo.
-  Back it up first:  mv ~/.vim ~/.vim.bak
+    die "$DEST exists but is not a chopsticks git repo.
+  Back it up first:  mv \"$DEST\" \"$DEST.bak\"
   Then re-run:       curl -fsSL https://raw.githubusercontent.com/m1ngsama/chopsticks/main/get.sh | bash"
 else
+    if [[ $DRY_RUN -eq 1 ]]; then
+        info "Would clone $REPO to $DEST"
+        info "Would run: bash install.sh ${INSTALLER_ARGS[*]:-(no installer options)}"
+        exit 0
+    fi
     git clone --depth=1 "$REPO" "$DEST" || \
         die "Clone failed — check your network connection"
     ok "Cloned to $DEST ($(git -C "$DEST" describe --tags 2>/dev/null || git -C "$DEST" rev-parse --short HEAD))"
@@ -96,7 +139,7 @@ cd "$DEST"
 # Use a test-open to check /dev/tty is actually accessible (it may exist but be
 # unusable in non-interactive SSH sessions or container environments).
 if { true </dev/tty; } 2>/dev/null; then
-    exec bash install.sh "$@" </dev/tty
+    exec bash install.sh "${INSTALLER_ARGS[@]}" </dev/tty
 else
-    exec bash install.sh "$@"
+    exec bash install.sh "${INSTALLER_ARGS[@]}"
 fi