TERMUX_PKG_HOMEPAGE=https://www.vim.org
TERMUX_PKG_DESCRIPTION="Vi IMproved - enhanced vi editor - with python support"
TERMUX_PKG_LICENSE="VIM License"
TERMUX_PKG_MAINTAINER="@termux"
TERMUX_PKG_DEPENDS="libiconv, ncurses, vim-runtime, python"
TERMUX_PKG_RECOMMENDS="diffutils"
TERMUX_PKG_CONFLICTS="vim"
TERMUX_PKG_VERSION=9.1.0850
TERMUX_PKG_SRCURL="https://github.com/vim/vim/archive/v${TERMUX_PKG_VERSION}.tar.gz"
TERMUX_PKG_SHA256=4bbd7480c2d5c577a77a070fa4a133e057c37f611adf47d9a317e50244d7caa4
TERMUX_PKG_BUILD_IN_SRC=true
TERMUX_PKG_CONFFILES="share/vim/vimrc"
TERMUX_PKG_EXTRA_CONFIGURE_ARGS="
vim_cv_getcwd_broken=no
vim_cv_memmove_handles_overlap=yes
vim_cv_stat_ignores_slash=no
vim_cv_terminfo=yes
vim_cv_tgetent=zero
vim_cv_toupper_broken=no
vim_cv_tty_group=world
--with-compiledby='Termux'
--enable-gui=no
--enable-multibyte
--enable-netbeans=no
--with-features=huge
--with-tlib=ncursesw
--without-x
vi_cv_path_python3_pfx=$TERMUX_PREFIX
vi_cv_path_python3_include=${TERMUX_PREFIX}/include/python${TERMUX_PYTHON_VERSION}
vi_cv_path_python3_platinclude=${TERMUX_PREFIX}/include/python${TERMUX_PYTHON_VERSION}
vi_cv_var_python3_abiflags=
vi_cv_var_python3_version=${TERMUX_PYTHON_VERSION}
--enable-python3interp
--with-python3-config-dir=$TERMUX_PYTHON_HOME/config-${TERMUX_PYTHON_VERSION}/
"

# Remove share/vim/vim91 which is in vim-runtime built as a subpackage of vim:
TERMUX_PKG_RM_AFTER_INSTALL="
share/vim/vim91
bin/rview
bin/rvim
bin/ex
share/man/man1/evim.1
share/icons
"

# Vim releases every commit as a new patch release.
# To avoid auto update spam, we only update Vim every 50th patch.
TERMUX_PKG_AUTO_UPDATE=true
TERMUX_PKG_UPDATE_VERSION_REGEXP='\d+\.\d+\.\d{2}(5|0)0'

termux_pkg_auto_update() {
	# This auto_update function is shared by `vim`, `vim-python` and `vim-gtk`
	# If you make changes to one of them,
	# remember to apply that change to the other two as well.
	local release
	release="$(git ls-remote --tags https://github.com/vim/vim.git \
	| grep -oP "refs/tags/v\K${TERMUX_PKG_UPDATE_VERSION_REGEXP}$" \
	| sort -V \
	| tail -n1)"

	if [[ "${release}" == "${TERMUX_PKG_VERSION}" ]]; then
		echo "INFO: No update needed. Already at version '${TERMUX_PKG_VERSION}'."
		return
	fi

	termux_pkg_upgrade_version "${release}"
}

termux_step_pre_configure() {
	# Certain packages are not safe to build on device because their
	# build.sh script deletes specific files in $TERMUX_PREFIX.
	if $TERMUX_ON_DEVICE_BUILD; then
		termux_error_exit "Package '$TERMUX_PKG_NAME' is not safe for on-device builds."
	fi

	make distclean

	# Remove eventually existing symlinks from previous builds so that they get re-created
	for sym in 'rview' 'rvim' 'ex' 'view' 'vimdiff'; do
		rm -f "${TERMUX_PREFIX}/bin/${sym}"
	done
	rm -f "$TERMUX_PREFIX/share/man/man1/view.1"
}

termux_step_post_make_install() {
	sed -e "s%\@TERMUX_PREFIX\@%${TERMUX_PREFIX}%g" "$TERMUX_PKG_BUILDER_DIR/vimrc" \
		> "$TERMUX_PREFIX/share/vim/vimrc"

	# Remove most tutor files:
	cp "$TERMUX_PREFIX/share/vim/vim91/tutor"/{tutor,tutor.vim,tutor.utf-8} "$TERMUX_PKG_TMPDIR/"
	rm -rf "$TERMUX_PREFIX/share/vim/vim91/tutor"/*
	cp "$TERMUX_PKG_TMPDIR"/{tutor,tutor.vim,tutor.utf-8} "$TERMUX_PREFIX/share/vim/vim91/tutor/"
}

termux_step_create_debscripts() {
	cat <<- EOF > ./postinst
	#!$TERMUX_PREFIX/bin/sh
	if [ "$TERMUX_PACKAGE_FORMAT" = "pacman" ] || [ "\$1" = "configure" ] || [ "\$1" = "abort-upgrade" ]; then
		if [ -x "$TERMUX_PREFIX/bin/update-alternatives" ]; then
			update-alternatives --install \
				$TERMUX_PREFIX/bin/editor editor $TERMUX_PREFIX/bin/vim 50
			update-alternatives --install \
				$TERMUX_PREFIX/bin/vi vi $TERMUX_PREFIX/bin/vim 20
		fi
	fi
	EOF

	cat <<- EOF > ./prerm
	#!$TERMUX_PREFIX/bin/sh
	if [ "$TERMUX_PACKAGE_FORMAT" = "pacman" ] || [ "\$1" != "upgrade" ]; then
		if [ -x "$TERMUX_PREFIX/bin/update-alternatives" ]; then
			update-alternatives --remove editor $TERMUX_PREFIX/bin/vim
			update-alternatives --remove vi $TERMUX_PREFIX/bin/vim
		fi
	fi
	EOF
}