vim: fix config and runtime

- Install shared runtime for both full and fuller.
- Switch big to huge as big is just an alias to normal.
- Fix default config path for tiny variant.
- Use upstream default config for both full and fuller.
- Don't mark default config files for backup.
- Don't mix variant files.
- Mark fuller variant config files for backup.
- Update configure arguments and remove deprecated ones.
- Remove deprecated configuration variables.
- Improve descriptions.
- Fix the following error by installing the missing runtime files for
  full and correctly installing the default config for tiny:

  E1187: Failed to source defaults.vim

- Fix the following fuller error by installing the missing directory in
  runtime:

  Error detected while processing /usr/share/vim/vim91/plugin/netrwPlugin.vim:
  line    7:
  E919: Directory not found in 'packpath': "pack/*/opt/netrw"

Fixes: https://github.com/openwrt/packages/issues/20203
Fixes: https://github.com/openwrt/packages/issues/28104
Signed-off-by: George Sapkin <george@sapk.in>

utils/vim/Makefile

@@ -10,7 +10,7 @@ include $(TOPDIR)/rules.mk
 PKG_NAME:=vim
 PKG_VERSION:=9.1.1918
 PKG_XXD_VERSION:=2025.08.24
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 VIMVER:=91
 
 PKG_SOURCE_PROTO:=git
@@ -47,13 +47,17 @@ define Package/vim-full
   TITLE+= (Normal)
   PROVIDES:=vim
   CONFLICTS:=vim
+  DEPENDS:=vim-runtime
+  EXTRA_DEPENDS:=vim-runtime (=$(PKG_VERSION)-r$(PKG_RELEASE))
 endef
 
 define Package/vim-fuller
   $(call Package/vim/Default)
-  TITLE+= (Big)
+  TITLE+= (Huge)
   PROVIDES:=vim vim-full
   CONFLICTS:=vim vim-full
+  DEPENDS:=vim-runtime
+  EXTRA_DEPENDS:=vim-runtime (=$(PKG_VERSION)-r$(PKG_RELEASE))
 endef
 
 define Package/vim-runtime
@@ -74,38 +78,40 @@ define Package/xxd
   VERSION:=$(PKG_XXD_VERSION)
 endef
 
-define Package/vim-full/conffiles
-/usr/share/vim/vimrc
+define Package/vim/conffiles
 /root/.vimrc
 endef
 
-define Package/vim/conffiles
-/usr/share/vim/vimrc
-/root/.vimrc
+Package/vim-full/conffiles = $(Package/vim/conffiles)
+Package/vim-fuller/conffiles = $(Package/vim/conffiles)
+
+define Package/vim/description/default
+  Vim is an almost compatible version of the UNIX editor Vi.
 endef
 
 define Package/vim/description
- Vim is an almost compatible version of the UNIX editor Vi.
- (Tiny build)
+  $(call Package/vim/description/default)
+  Tiny build with minimal feature set.
 endef
 
 define Package/vim-full/description
- Vim is an almost compatible version of the UNIX editor Vi.
- (Normal build)
+  $(call Package/vim/description/default)
+  Normal build with standard set of features like syntax highlighting, menus,
+  mouse support, translations, spell checking, etc.
 endef
 
 define Package/vim-fuller/description
- Vim is an almost compatible version of the UNIX editor Vi.
- (Big build)
+  $(call Package/vim/description/default)
+  Huge build enables right-to-left language support, cscope, etc.
 endef
 
 define Package/vim-runtime/description
- Vim is an almost compatible version of the UNIX editor Vi.
+  $(call Package/vim/description/default)
   (Runtime files)
 endef
 
 define Package/vim-help/description
- Vim is an almost compatible version of the UNIX editor Vi.
+  $(call Package/vim/description/default)
   (Help files)
 endef
 
@@ -115,30 +121,24 @@ define Package/xxd/description
 endef
 
 CONFIGURE_ARGS += \
-	--disable-gui \
-	--disable-gtktest \
-	--disable-xim \
-	--without-x \
-	--disable-netbeans \
-	--disable-cscope \
-	--disable-gpm \
 	--disable-acl \
+	--disable-gtktest \
 	--disable-libsodium \
+	--disable-netbeans \
 	--disable-selinux \
-	--with-tlib=ncurses \
+	--enable-gpm=no \
+	--enable-gui=no \
 	--with-compiledby="non-existent-hostname-compiled" \
+	--with-tlib=ncurses \
 	--with-wayland=no
 
 CONFIGURE_VARS += \
-	ac_cv_header_elf_h=no \
 	vim_cv_getcwd_broken=no \
 	vim_cv_memmove_handles_overlap=yes \
 	vim_cv_stat_ignores_slash=yes \
-	vim_cv_tgetent=zero \
 	vim_cv_terminfo=yes \
-	vim_cv_toupper_broken=no \
-	vim_cv_tty_group=root \
-	vim_cv_tty_mode=0620
+	vim_cv_tgetent=zero \
+	vim_cv_toupper_broken=no
 
 ifneq ($(HOST_OS),Linux)
   TARGET_PATH_PKG:=$(CURDIR)/scripts:$(TARGET_PATH_PKG)
@@ -155,7 +155,7 @@ define Build/Compile/vim
 		--with-features=tiny \
 	)
 	+$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) \
-		DESTDIR="$(PKG_INSTALL_DIR)" all
+		DESTDIR="$(PKG_INSTALL_DIR)/vim_tiny" all
 	$(CP) $(PKG_BUILD_DIR)/src/$(PKG_NAME) $(PKG_BUILD_DIR)/vim_tiny
 endef
 endif
@@ -166,7 +166,7 @@ define Build/Compile/vim-full
 		--with-features=normal \
 	)
 	+$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) \
-		DESTDIR="$(PKG_INSTALL_DIR)" all
+		DESTDIR="$(PKG_INSTALL_DIR)/vim_normal" all
 	$(CP) $(PKG_BUILD_DIR)/src/$(PKG_NAME) $(PKG_BUILD_DIR)/vim_normal
 endef
 endif
@@ -174,11 +174,11 @@ endif
 ifneq ($(CONFIG_PACKAGE_vim-fuller),)
 define Build/Compile/vim-fuller
 	$(call Build/Configure/Default, \
-		--with-features=big \
+		--with-features=huge \
 	)
 	+$(MAKE) $(PKG_JOBS) -C $(PKG_BUILD_DIR) \
-		DESTDIR="$(PKG_INSTALL_DIR)" all
-	$(CP) $(PKG_BUILD_DIR)/src/$(PKG_NAME) $(PKG_BUILD_DIR)/vim_big
+		DESTDIR="$(PKG_INSTALL_DIR)/vim_huge" all
+	$(CP) $(PKG_BUILD_DIR)/src/$(PKG_NAME) $(PKG_BUILD_DIR)/vim_huge
 endef
 endif
 
@@ -190,10 +190,10 @@ endef
 endif
 
 define Build/Compile/vim-runtime
-	$(MAKE) -C $(PKG_BUILD_DIR)/src DESTDIR="$(PKG_INSTALL_DIR)" installrtbase
-	(cd $(PKG_INSTALL_DIR) && tar -cf $(PKG_BUILD_DIR)/docs.tar ./usr/share/vim/vim$(VIMVER)/doc)
-	rm -rf $(PKG_INSTALL_DIR)/usr/share/vim/vim$(VIMVER)/doc
-	rm -rf $(PKG_INSTALL_DIR)/usr/man
+	$(MAKE) -C $(PKG_BUILD_DIR)/src DESTDIR="$(PKG_INSTALL_DIR)/vim_runtime" installrtbase
+	(cd $(PKG_INSTALL_DIR)/vim_runtime && tar -cf $(PKG_BUILD_DIR)/docs.tar ./usr/share/vim/vim$(VIMVER)/doc)
+	$(RM) -r $(PKG_INSTALL_DIR)/vim_runtime/usr/share/vim/vim$(VIMVER)/doc
+	$(RM) -r $(PKG_INSTALL_DIR)/vim_runtime/usr/man
 endef
 
 define Build/Compile
@@ -208,7 +208,7 @@ define Package/vim/install
 	$(INSTALL_DIR) $(1)/usr/bin
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/vim_tiny $(1)/usr/bin/vim
 	$(INSTALL_DIR) $(1)/usr/share/vim
-	$(INSTALL_CONF) ./files/vimrc $(1)/usr/share/vim/
+	$(INSTALL_CONF) ./files/defaults.vim $(1)/usr/share/vim
 endef
 
 define Package/vim-full/install
@@ -216,25 +216,23 @@ define Package/vim-full/install
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/vim_normal $(1)/usr/bin/vim
 	$(INSTALL_DIR) $(1)/usr/share/vim
 	$(LN) vim $(1)/usr/bin/vimdiff
-	$(INSTALL_CONF) ./files/vimrc.full $(1)/usr/share/vim/vimrc
 endef
 
 define Package/vim-fuller/install
 	$(INSTALL_DIR) $(1)/usr/bin
-	$(INSTALL_BIN) $(PKG_BUILD_DIR)/vim_big $(1)/usr/bin/vim
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/vim_huge $(1)/usr/bin/vim
 	$(INSTALL_DIR) $(1)/usr/share/vim
 	$(LN) vim $(1)/usr/bin/vimdiff
-	$(CP) $(PKG_INSTALL_DIR)/usr/share/vim/vim$(VIMVER) $(1)/usr/share/vim
-	$(INSTALL_CONF) ./files/vimrc.full $(1)/usr/share/vim/vimrc
 endef
 
 define Package/vim-runtime/install
-	$(CP) $(PKG_INSTALL_DIR)/* $(1)
-	rm -rf $(1)/usr/share/vim/vim$(VIMVER)/doc
+	$(CP) $(PKG_INSTALL_DIR)/vim_runtime/* $(1)
+	$(INSTALL_DIR) $(1)/usr/share/vim/vim$(VIMVER)/pack/dist/opt/netrw
+	$(RM) -r $(1)/usr/share/vim/vim$(VIMVER)/doc
 endef
 
 define Package/vim-help/install
-	tar -C $(1) -xf $(PKG_BUILD_DIR)/docs.tar
+	$(TAR) -C $(1) -xf $(PKG_BUILD_DIR)/docs.tar
 endef
 
 define Package/xxd/install

utils/vim/files/vimrc.full

@@ -1,30 +0,0 @@
-set showcmd			" show (partial) command in status line
-set showmatch			" show matching brackets
-set incsearch			" incremental search
-"set autowrite			" automatically save before commands like :next and :make
-set nocompatible		" use Vim defaults instead of 100% vi compatibility
-set backspace=indent,eol,start	" more powerful backspacing
-set autoindent			" always set autoindenting on
-set linebreak			" don't wrap words by default
-set textwidth=0			" don't wrap lines by default
-set ruler			" show the cursor position all the time
-
-set backupskip+=/etc/crontabs.*	" fix crontab -e
-
-if filereadable(expand("$VIMRUNTIME/syntax/synload.vim"))
-	syntax on
-endif
-if has("syntax") && &term =~ "xterm"
-	set t_Co=8
-	if has("terminfo")
-		set t_Sf=<Esc>[3%p1%dm
-		set t_Sb=<Esc>[4%p1%dm
-	else
-		set t_Sf=<Esc>[3%dm
-		set t_Sb=<Esc>[4%dm
-	endif
-endif
-
-" Uncomment out for line and/or relative numberig
-" set number
-" set rnu