feat(dotfiles): add reinstall-nvim subcommand

- New 'dotfiles reinstall-nvim': clean rebuild of nvim from the
  currently checked-out submodule tag (prompted), independent of
  sync's version check.
- Fix build_and_install_nvim: rm targeted $build_dir/build
  (install prefix, nonexistent) instead of the real build tree;
  now clears $src_dir/{build,.deps} so rebuilds are from scratch.
  sync only worked before because a new tag changed sources.
- Add reinstall-nvim to the _comp_dotfiles completion.

2 files changed, 10 insertions, 3 deletions

diff --git a/.local/bin/dotfiles b/.local/bin/dotfiles
index 40855f7..d29f4fe 100755
--- a/.local/bin/dotfiles
+++ b/.local/bin/dotfiles
@@ -47,7 +47,7 @@ sync_mdformat() {
 build_and_install_nvim() {
 	local src_dir="$HOME/.local/share/dotfiles/deps/neovim"
 	local build_dir="$HOME/.local/share/nvim"
-	rm -rf "$build_dir/build/"
+	rm -rf "$src_dir/build/" "$src_dir/.deps/"
 	make \
 		--directory="$src_dir" \
 		CMAKE_BUILD_TYPE=RelWithDebInfo \
@@ -76,6 +76,12 @@ sync_nvim() {
 	fi
 }
 
+reinstall_nvim() {
+	if prompt_for_install "Rebuild nvim from source"; then
+		build_and_install_nvim
+	fi
+}
+
 case ${1:-} in
 sync)
 	declare deps=(
@@ -105,10 +111,11 @@ sync)
 	sync_nvim
 	sync_mdformat
 	;;
+reinstall-nvim) reinstall_nvim ;;
 on) clipboard_hint "source $HOME/.local/share/dotfiles/dotfiles_on.env" ;;
 off) clipboard_hint "source $HOME/.local/share/dotfiles/dotfiles_off.env" ;;
 *)
-	echo "usage: dotfiles {sync|on|off}"
+	echo "usage: dotfiles {sync|reinstall-nvim|on|off}"
 	exit 1
 	;;
 esac
diff --git a/.local/share/dotfiles/dotfiles_on.env b/.local/share/dotfiles/dotfiles_on.env
index f02b9f4..99c6fdb 100644
--- a/.local/share/dotfiles/dotfiles_on.env
+++ b/.local/share/dotfiles/dotfiles_on.env
@@ -1,6 +1,6 @@
 export GIT_DIR="$DOTFILES_DIR" GIT_WORK_TREE="$HOME"
 
 function _comp_dotfiles() {
-	COMPREPLY=(sync on off)
+	COMPREPLY=(sync reinstall-nvim on off)
 }
 complete -F _comp_dotfiles dotfiles