feat: Migrate Vim and Tmux plugins to dedicated managers

Migrated Vim plugins from Git submodules to vim-plug, and Tmux plugins
to TPM (Tmux Plugin Manager).

This change:
- Updates `install.sh` to automatically install vim-plug and TPM.
- Modifies `dotfiles/vimrc` to configure plugins via vim-plug.
- Modifies `dotfiles/tmux.conf` to configure plugins via TPM.
- Removes all Vim and Tmux submodule entries from `.gitmodules`.
- Deletes the old submodule directories from the repository.

This streamlines plugin management, making updates easier and reducing
the complexity of the main `install.sh` script.

.gitmodules

@@ -1,24 +1 @@
-[submodule "dotfiles/vim/pack/matir/opt/solarized8"]
+
-	path = dotfiles/vim/pack/matir/opt/solarized8
-	url = https://github.com/lifepillar/vim-solarized8.git
-	fetchRecurseSubmodules = true
-[submodule "dotfiles/vim/pack/matir/start/surround"]
-	path = dotfiles/vim/pack/matir/start/surround
-	url = https://github.com/tpope/vim-surround.git
-	fetchRecurseSubmodules = true
-[submodule "dotfiles/vim/pack/matir/start/editorconfig"]
-	path = dotfiles/vim/pack/matir/start/editorconfig
-	url = https://github.com/editorconfig/editorconfig-vim.git
-	fetchRecurseSubmodules = true
-[submodule "dotfiles/vim/pack/matir/start/fugitive"]
-	path = dotfiles/vim/pack/matir/start/fugitive
-	url = https://github.com/tpope/vim-fugitive
-	fetchRecurseSubmodules = true
-[submodule "dotfiles/vim/pack/matir/start/ctrlp"]
-	path = dotfiles/vim/pack/matir/start/ctrlp
-	url = https://github.com/ctrlpvim/ctrlp.vim.git
-	fetchRecurseSubmodules = true
-[submodule "dotfiles/tmux/tmux-logging"]
-	path = dotfiles/tmux/tmux-logging
-	url = https://github.com/tmux-plugins/tmux-logging.git
-	fetchRecurseSubmodules = true

dotfiles/tmux.conf

@@ -67,12 +67,10 @@ bind M \
 bind C-c run "tmux show-buffer | xsel -i -b"
 bind C-v run "tmux set-buffer -- \"$(xsel -o -b)\"; tmux paste-buffer"
 
-# Enable logging module, if available
+# List of plugins
-run-shell "~/.tmux/tmux-logging/logging.tmux || true"
-
-# Enable TMUX Plugin Manager
-# install with:
-# git clone https://github.com/tmux-plugins/tpm ~/.tmux/plugins/tpm
 set -g @plugin 'tmux-plugins/tpm'
 set -g @plugin 'tmux-plugins/tmux-sensible'
-run-shell "~/.tmux/plugins/tpm/tpm || true"
+set -g @plugin 'tmux-plugins/tmux-logging'
+
+# Initialize TMUX plugin manager (keep this line at the very bottom of tmux.conf)
+run '~/.tmux/plugins/tpm/tpm'

dotfiles/vimrc

@@ -9,6 +9,17 @@ if !isdirectory($HOME . '/.cache/vim/swap')
   silent !mkdir -p ~/.cache/vim/{backup,swap,undo}
 endif
 
+" vim-plug plugin list
+call plug#begin('~/.vim/plugged')
+
+Plug 'lifepillar/vim-solarized8'
+Plug 'tpope/vim-surround'
+Plug 'editorconfig/editorconfig-vim'
+Plug 'tpope/vim-fugitive'
+Plug 'ctrlpvim/ctrlp.vim'
+
+call plug#end()
+
 " Make sure files get completely written, but don't write backups
 set nobackup
 set writebackup

install.sh

@@ -52,14 +52,22 @@ prerequisites() {
   fi
 }
 
-install_dotfile_dir() {
+link_directory_contents() {
   local SRCDIR="${1}"
-  local dotfile
+  local DESTDIR="${2}"
-  local submodule_prune="$(git -C "${BASEDIR}" submodule status -- "${SRCDIR}" 2>/dev/null | \
+  local PREFIX="${3}"
+  local file
+  local submodule_prune=""
+
+  # Submodule logic only applies when we are installing dotfiles (PREFIX=".")
+  if [[ "${PREFIX}" == "." ]]; then
+    submodule_prune="$(git -C "${BASEDIR}" submodule status -- "${SRCDIR}" 2>/dev/null | \
       awk '{print $2}' | \
       while read -r submod ; do
         echo -n " -o -path ${BASEDIR}/${submod}"
       done)"
+  fi
+
   # shellcheck disable=SC2086
   find "${SRCDIR}" \( -name .git -o \
                     -name install.sh -o \
@@ -67,16 +75,19 @@ install_dotfile_dir() {
                     -name .gitignore \
                     ${submodule_prune} \) \
       -prune -o ${FINDTYPE} f -print | \
-    while read -r dotfile ; do
+    while read -r file ; do
-      local TARGET="${HOME}/.${dotfile#"${SRCDIR}"/}"
+      local TARGET="${DESTDIR}/${PREFIX}${file#"${SRCDIR}"/}"
       mkdir -p "$(dirname "${TARGET}")"
-      ln -s -f "${dotfile}" "${TARGET}"
+      ln -s -f "${file}" "${TARGET}"
     done
+
+  # Submodule logic only applies when we are installing dotfiles (PREFIX=".")
+  if [[ "${PREFIX}" == "." ]]; then
     git -C "${BASEDIR}" submodule status -- "${SRCDIR}" 2>/dev/null | \
       awk '{print $2}' | \
       while read -r submodule ; do
         local FULLNAME="${BASEDIR}/${submodule}"
-      local TARGET="${HOME}/.${FULLNAME#"${SRCDIR}"/}"
+        local TARGET="${DESTDIR}/${PREFIX}${FULLNAME#"${SRCDIR}"/}"
         mkdir -p "$(dirname "${TARGET}")"
         if [[ -L "${TARGET}" ]] ; then
           if [[ "$(readlink "${TARGET}")" != "${FULLNAME}" ]] ; then
@@ -88,18 +99,7 @@ install_dotfile_dir() {
           ln -s -f "${FULLNAME}" "${TARGET}"
         fi
       done
-}
+  fi
-
-install_basic_dir() {
-  local SRCDIR="${1}"
-  local DESTDIR="${2}"
-  local file
-  find "${SRCDIR}" \( -name .git -o -name README.md -o -name .gitignore \) -prune -o ${FINDTYPE} f -print | \
-    while read -r file ; do
-    local TARGET="${DESTDIR}/${file#"${SRCDIR}"/}"
-    mkdir -p "$(dirname "${TARGET}")"
-    ln -s -f "${file}" "${TARGET}"
-  done
 }
 
 ssh_key_already_installed() {
@@ -237,14 +237,14 @@ verbose() {
 # Operations
 
 install_dotfiles() {
-  install_dotfile_dir "${BASEDIR}/dotfiles"
+  link_directory_contents "${BASEDIR}/dotfiles" "${HOME}" "."
   if [[ -d "${BASEDIR}/local_dotfiles" ]] ; then
-    install_dotfile_dir "${BASEDIR}/local_dotfiles"
+    link_directory_contents "${BASEDIR}/local_dotfiles" "${HOME}" "."
   fi
   if [[ -d "${BASEDIR}/dotfile_overlays" ]] ; then
     for dotfiledir in "${BASEDIR}/dotfile_overlays/"* ; do
       if [[ -d "${dotfiledir}" ]] ; then
-        install_dotfile_dir "${dotfiledir}"
+        link_directory_contents "${dotfiledir}" "${HOME}" "."
       fi
     done
   fi
@@ -254,14 +254,41 @@ install_main() {
   if [[ -d "${BASEDIR}/.git" && have_command git ]] ; then
     if [[ -z "$(git -C "${BASEDIR}" status --porcelain)" ]]; then
       git -C "${BASEDIR}" pull --ff-only || true
-      [[ "$MINIMAL" = 1 ]] || \
-        git -C "${BASEDIR}" submodule update --init --recursive --depth 1
     else
       echo "Skipping self-update: repository has local changes." >&2
     fi
   fi
   [[ "$MINIMAL" = 1 ]] || {
     prerequisites
+
+    # Install vim-plug if not already present
+    local VIM_PLUG_URL="https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim"
+    local VIM_AUTOLOAD_DIR="${HOME}/.vim/autoload"
+    local VIM_PLUG_FILE="${VIM_AUTOLOAD_DIR}/plug.vim"
+
+    if [[ ! -f "${VIM_PLUG_FILE}" ]]; then
+      verbose "Installing vim-plug..."
+      mkdir -p "${VIM_AUTOLOAD_DIR}"
+      if have_command curl; then
+        curl -fLo "${VIM_PLUG_FILE}" --create-dirs "${VIM_PLUG_URL}"
+      else
+        echo "Error: curl not found. Cannot install vim-plug." >&2
+      fi
+        fi
+    
+        # Install TPM (Tmux Plugin Manager) if not already present
+        local TPM_DIR="${HOME}/.tmux/plugins/tpm"
+        local TPM_REPO="https://github.com/tmux-plugins/tpm"
+    
+        if [[ ! -d "${TPM_DIR}" ]]; then
+          verbose "Installing TPM (Tmux Plugin Manager)..."
+          if have_command git; then
+            git clone "${TPM_REPO}" "${TPM_DIR}"
+          else
+            echo "Error: git not found. Cannot install TPM." >&2
+          fi
+        fi
+    
         # try to update dotfile overlays
     if [[ -d "${BASEDIR}/dotfile_overlays" ]] ; then
       for dotfiledir in "${BASEDIR}/dotfile_overlays/"* ; do
@@ -273,7 +300,7 @@ install_main() {
     fi
   }
   install_dotfiles
-  install_basic_dir "${BASEDIR}/bin" "${HOME}/bin"
+  link_directory_contents "${BASEDIR}/bin" "${HOME}/bin" ""
   [[ "$INSTALL_KEYS" = 1 ]] && install_keys
   save_prefs
   setup_git_email