feat(dfm): add cleanup script for old version manager installations

scripts/cleanup-old-version-managers.sh

@@ -0,0 +1,122 @@
+#!/usr/bin/env bash
+set -euo pipefail
+# @description Remove old version manager installations replaced by mise.
+# This script targets specific known directories — NOT which/command -v,
+# because nvim's Mason installs some of the same tool names.
+#
+# shellcheck source=shared.sh
+source "$DOTFILES/config/shared.sh"
+
+DRY_RUN="${1:-}"
+
+remove_dir()
+{
+  local dir="$1"
+  local label="$2"
+  if [ -d "$dir" ]; then
+    if [ "$DRY_RUN" = "--dry-run" ]; then
+      msgr warn "[DRY RUN] Would remove $label: $dir"
+    else
+      msgr run "Removing $label: $dir"
+      rm -rf "$dir"
+      msgr run_done "Removed $label"
+    fi
+  else
+    msgr ok "$label not found (already clean): $dir"
+  fi
+}
+
+remove_file()
+{
+  local file="$1"
+  local label="$2"
+  if [ -f "$file" ]; then
+    if [ "$DRY_RUN" = "--dry-run" ]; then
+      msgr warn "[DRY RUN] Would remove $label: $file"
+    else
+      rm -f "$file"
+      msgr run_done "Removed $label: $file"
+    fi
+  fi
+}
+
+msgr msg "Cleaning up old version manager installations..."
+msgr msg "Mason binaries in \$XDG_DATA_HOME/nvim/mason/ will NOT be touched."
+
+# --- Version manager data directories ---
+
+# nvm (Node Version Manager)
+remove_dir "$XDG_DATA_HOME/nvm" "nvm data"
+
+# fnm (Fast Node Manager)
+remove_dir "$XDG_DATA_HOME/fnm" "fnm data"
+
+# pyenv
+remove_dir "$XDG_DATA_HOME/pyenv" "pyenv data"
+
+# goenv
+remove_dir "$XDG_DATA_HOME/goenv" "goenv data"
+
+# bob-nvim (neovim version manager — mise manages neovim now)
+remove_dir "$XDG_DATA_HOME/bob" "bob-nvim data"
+
+# --- Cargo-installed tool binaries ---
+# These were installed via `cargo install` into $CARGO_HOME/bin.
+# mise now manages them via ubi/cargo backends into its own install dirs.
+# Only remove from the OLD cargo bin location, not from XDG_BIN_HOME.
+
+CARGO_BIN="${XDG_DATA_HOME}/cargo/bin"
+CARGO_MANAGED_TOOLS=(
+  bkt bottom btm difft difftastic eza fd rg ripgrep
+  tree-sitter tmux-sessionizer zoxide bob
+  cargo-install-update cargo-cache
+)
+for tool in "${CARGO_MANAGED_TOOLS[@]}"; do
+  remove_file "$CARGO_BIN/$tool" "cargo-installed $tool"
+done
+
+# --- Go-installed tool binaries ---
+# go install puts binaries in $GOBIN (= $XDG_BIN_HOME) or $GOPATH/bin.
+# Only remove from $GOPATH/bin if it differs from XDG_BIN_HOME.
+GO_BIN="${XDG_DATA_HOME}/go/bin"
+GO_MANAGED_TOOLS=(
+  yamlfmt cheat glow fzf gum sesh git-profile
+)
+if [ "$GO_BIN" != "$XDG_BIN_HOME" ] && [ -d "$GO_BIN" ]; then
+  for tool in "${GO_MANAGED_TOOLS[@]}"; do
+    remove_file "$GO_BIN/$tool" "go-installed $tool"
+  done
+fi
+
+# --- npm global binaries ---
+# These were installed via `npm install -g` into the nvm/fnm node prefix.
+# Since we removed nvm/fnm data dirs above, these are already gone.
+
+# --- Python tools via uv tool ---
+# uv tool binaries go to ~/.local/bin/ (XDG_BIN_HOME).
+# mise pipx backend installs to a different location.
+# We leave XDG_BIN_HOME alone and let mise take precedence via PATH.
+
+# --- Homebrew-installed version managers ---
+# These will be removed when `brew bundle cleanup` runs after Brewfile update.
+if command -v brew &> /dev/null; then
+  BREW_REMOVE=(
+    pyenv pyenv-pip-migrate pyenv-virtualenv goenv cargo-binstall
+    act age ansible ansible-lint awscli bat bats-core checkov
+    choose-rust cmake gdu gh grype jq onefetch pinact shellcheck
+    tfenv tflint tfsec uv virtualenv wakatime-cli
+  )
+  for pkg in "${BREW_REMOVE[@]}"; do
+    if brew list "$pkg" &> /dev/null; then
+      if [ "$DRY_RUN" = "--dry-run" ]; then
+        msgr warn "[DRY RUN] Would brew uninstall $pkg"
+      else
+        msgr run "Uninstalling brew package: $pkg"
+        brew uninstall --ignore-dependencies "$pkg" || true
+        msgr run_done "Uninstalled $pkg"
+      fi
+    fi
+  done
+fi
+
+msgr yay "Cleanup complete! Run 'mise install' to set up tools via mise."