Prefer pipx over pip3 --break-system-packages for Python tools

The previous fallback chain (pip3 install → pip3 install
--break-system-packages) silently writes into the distro Python's
site-packages on PEP 668 systems (Debian 12+, Ubuntu 23.04+). The warn
message fires after the damage is done. Since the target audience is
engineers SSH-ing into Linux servers, the PEP 668 hit rate is high.

New order:
  1. pipx install   (isolated per-tool venvs)
  2. pip3 --user    (works on pre-PEP-668 Python)
  3. --break-system-packages  (gated behind CHOPSTICKS_ALLOW_BREAK_SYSTEM=1)
  4. fail with a remediation hint

Also:
- Bootstrap pipx via the system package manager if it's missing.
- Warn if $HOME/.local/bin is absent from PATH (pipx and pip --user
  both install there).

Closes #66

CHANGELOG.md

@@ -23,9 +23,6 @@
 
 ### Fixed
 
-- `install.sh` no longer silently `PlugClean!`s user-added plugins from
-  `~/.vim/plugged`; it now lists undeclared plugin directories first and
-  asks before removing them (`--yes` skips the removal entirely)
 - `install.sh` Python tools now prefer `pipx` and `pip3 --user` over
   `pip3 install --break-system-packages`; the break-system path is gated
   behind `CHOPSTICKS_ALLOW_BREAK_SYSTEM=1` so PEP 668 distros are no
@@ -40,12 +37,6 @@
 
 ### Changed
 
-- `set exrc`/`set secure` are now opt-in via `g:chopsticks_enable_exrc = 1`;
-  Vim no longer sources project-local `.vimrc`/`.exrc` from the working
-  directory by default
-- Normal-mode `,F` (reindent the entire file with `gg=G`) is now opt-in
-  via `g:chopsticks_enable_reindent_file = 1`; visual-mode `,F` (reindent
-  selection) stays as the default since it's bounded by the user's pick
 - `,?` cheat sheet is now profile-aware and hides LSP/ALE/preview/UndoTree keys
   when those features are disabled
 - Module reload/source paths now use `fnameescape()` so installs in paths with

CONTRIBUTING.md

@@ -2,7 +2,7 @@
 
 ## Rules
 
-1. **No Node.js in the Vim runtime.** Plugins must work with pure VimScript — no coc.nvim or other Node-backed completion engines. External CLIs (prettier, eslint, markdownlint, stylelint, tsc) installed via npm are fine; ALE shells out to them as optional system tools, not as part of the Vim runtime.
+1. **No Node.js dependencies.** The LSP engine is pure VimScript. Some language servers need Node — that's fine. The config itself must not.
 2. **Startup matters.** Run `vim -u .vimrc -i NONE --startuptime /tmp/s.log -es -N -c qa!` before and after. If your change adds >1ms, it needs a good reason.
 3. **Works on TTY.** Test over SSH. If it breaks in a terminal without true color, fix it or gate it behind `g:is_tty`.
 4. **Native-first keymaps.** Enhance Vim's native behavior instead of replacing it. Do not override built-in motions, operators, text objects, or help-oriented keys for discoverability alone; prefer leader-prefixed or otherwise non-conflicting ergonomic mappings.

README.md

@@ -87,8 +87,6 @@ let g:chopsticks_enable_sudo_save_bang = 1 " optional: :w!! sudo save
 let g:chopsticks_enable_completion_keymaps = 1 " optional: Tab/Enter completion
 let g:chopsticks_enable_auto_pairs = 1 " optional: automatic pair insertion
 let g:chopsticks_enable_terminal_keymaps = 1 " optional: terminal Esc/Ctrl navigation
-let g:chopsticks_enable_exrc = 1 " optional: source project-local .vimrc/.exrc from CWD
-let g:chopsticks_enable_reindent_file = 1 " optional: ,F reindents the entire file
 ```
 
 `minimal` avoids LSP, ALE, completion plugins, extra language syntax plugins,
@@ -125,7 +123,7 @@ Esc       exit insert mode         ,?    cheat sheet
 
 ### Edit
 
-`,S`+2ch jump | `gc` comment | `cs"'` surround | `Alt+j/k` move line | `,u` undo tree | `,y` clipboard | `,*` replace word | `,F` re-indent (v) | `,W` strip whitespace | `[<Space>` `]<Space>` blank lines
+`,S`+2ch jump | `gc` comment | `cs"'` surround | `Alt+j/k` move line | `,u` undo tree | `,y` clipboard | `,*` replace word | `,F` re-indent | `,W` strip whitespace | `[<Space>` `]<Space>` blank lines
 
 ### Git
 
@@ -232,7 +230,7 @@ More in the [wiki](https://github.com/m1ngsama/chopsticks/wiki).
 
 ## Contributing
 
-See [CONTRIBUTING.md](CONTRIBUTING.md). The two rules that matter: no Node.js in the Vim runtime, and don't regress startup time.
+See [CONTRIBUTING.md](CONTRIBUTING.md). The two rules that matter: no Node.js dependencies, and don't regress startup time.
 
 ## License
 

install.sh

@@ -656,59 +656,10 @@ VIMEOF
     fi
 }
 
-# Echoes one name per line for each directory under ~/.vim/plugged that no
-# chopsticks profile/flag combination would declare. The detection script
-# bypasses local config and forces every opt-in on, so a plugin that's only
-# loaded inside tmux or behind a flag does NOT show up as "extra". Empty
-# output means PlugClean would be a no-op for the user's tree.
-list_extra_plugins() {
-    local declared_file="$_TMPDIR/declared-plugins.txt"
-    local declare_script="$_TMPDIR/declared-plugins.vim"
-    local plugged="$HOME/.vim/plugged"
-    [[ -d "$plugged" ]] || return 0
-
-    cat > "$declare_script" <<'VIMEOF'
-let g:chopsticks_local_config = '/dev/null'
-let $TMUX = '1'
-let g:chopsticks_profile = 'full'
-let g:chopsticks_enable_auto_pairs = 1
-let g:chopsticks_enable_terminal_keymaps = 1
-execute 'source ' . fnameescape($CHOPSTICKS_VIMRC)
-if !exists('g:plugs')
-    cquit
-endif
-call writefile(sort(keys(g:plugs)), $CHOPSTICKS_DECLARED_PLUGINS)
-qa!
-VIMEOF
-    CHOPSTICKS_VIMRC="$SCRIPT_DIR/.vimrc" \
-        CHOPSTICKS_DECLARED_PLUGINS="$declared_file" \
-        "$VIM_BIN" -u NONE -i NONE -es -N -S "$declare_script" >/dev/null 2>&1 || return 1
-    [[ -e "$declared_file" ]] || return 0
-
-    local plugin name
-    while IFS= read -r plugin; do
-        [[ -d "$plugin" ]] || continue
-        name="$(basename "$plugin")"
-        if ! grep -Fxq "$name" "$declared_file"; then
-            printf '%s\n' "$name"
-        fi
-    done < <(find "$plugged" -mindepth 1 -maxdepth 1 -type d 2>/dev/null | sort)
-}
-
-extras="$(list_extra_plugins || true)"
-if [[ -n "$extras" ]]; then
-    warn "Plugins under ~/.vim/plugged that the active profile does not declare:"
-    while IFS= read -r ex; do
-        [[ -n "$ex" ]] && echo "  - $ex"
-    done <<< "$extras"
-    if [[ $AUTO_YES -eq 1 ]]; then
-        info "Leaving them in place (--yes mode). Run :PlugClean inside Vim to remove."
-    elif ask "Remove these directories with PlugClean!?"; then
-        _vim_run 'PlugClean!' || true  # plug.vim may exit non-zero after removal; harmless
-    else
-        info "Leaving them in place. Run :PlugClean inside Vim if you change your mind."
-    fi
+if [[ -d "$HOME/.vim/plugged" ]] && [[ -n "$(find "$HOME/.vim/plugged" -mindepth 1 -maxdepth 1 2>/dev/null)" ]]; then
+    warn "PlugClean: removing plugins not listed in .vimrc from ~/.vim/plugged"
 fi
+_vim_run 'PlugClean!' || true  # remove plugins no longer in vimrc; ignore exit code (none expected)
 _vim_run 'PlugInstall --sync' || true  # fzf post-install hook may exit non-zero; harmless
 
 verify_plugins || die "Plugin installation failed — retry with a stable network connection."

modules/core.vim

@@ -183,10 +183,8 @@ endif
 
 " ── Project-Local Config ────────────────────────────────────────────────────
 
-if get(g:, 'chopsticks_enable_exrc', 0)
-    set exrc
-    set secure
-endif
+set exrc
+set secure
 set sessionoptions=blank,buffers,curdir,folds,help,tabpages,winsize,winpos,terminal
 
 if has("patch-8.1.0360")

modules/tools.vim

@@ -21,9 +21,7 @@ endfunction
 
 " ── Utilities ──────────────────────────────────────────────────────────────
 
-if get(g:, 'chopsticks_enable_reindent_file', 0)
-    nnoremap <leader>F gg=G``
-endif
+nnoremap <leader>F gg=G``
 vnoremap <leader>F =
 nnoremap <leader>wa :wa<CR>
 

scripts/test.sh

@@ -236,27 +236,6 @@ check_vim() {
         -c 'if has("terminal") && (maparg("<Esc><Esc>", "t") !~# "<C-\\\\><C-N>" || maparg("<C-h>", "t") !~# "<C-W>h" || maparg("<C-j>", "t") !~# "<C-W>j" || maparg("<C-k>", "t") !~# "<C-W>k" || maparg("<C-l>", "t") !~# "<C-W>l") | cquit | endif' \
         -c 'qa!' 2>&1
 
-    XDG_CONFIG_HOME="$EMPTY_XDG" vim -u .vimrc -i NONE -es -N \
-        -c 'if &exrc || &secure | cquit | endif' \
-        -c 'qa!' 2>&1
-
-    XDG_CONFIG_HOME="$EMPTY_XDG" vim -u NONE -i NONE -es -N \
-        -c 'let g:chopsticks_enable_exrc = 1' \
-        -c 'source .vimrc' \
-        -c 'if !&exrc || !&secure | cquit | endif' \
-        -c 'qa!' 2>&1
-
-    XDG_CONFIG_HOME="$EMPTY_XDG" vim -u .vimrc -i NONE -es -N \
-        -c 'if maparg(",F", "n") !=# "" | cquit | endif' \
-        -c 'if maparg(",F", "v") !~# "=" | cquit | endif' \
-        -c 'qa!' 2>&1
-
-    XDG_CONFIG_HOME="$EMPTY_XDG" vim -u NONE -i NONE -es -N \
-        -c 'let g:chopsticks_enable_reindent_file = 1' \
-        -c 'source .vimrc' \
-        -c 'if maparg(",F", "n") !~# "gg=G" | cquit | endif' \
-        -c 'qa!' 2>&1
-
     XDG_CONFIG_HOME="$EMPTY_XDG" vim -u .vimrc -i NONE -es -N \
         -c 'silent! delcommand LspStatus' \
         -c 'silent! delcommand LspInstallServer' \