app-vim/colorv: Port to python-single-r1

Use the python-single-r1 eclass to handle the Python dependency
gracefully. Enforce PYTHON_USEDEP on vim.

diff --git a/app-vim/colorv/colorv-3.0.2-r1.ebuild b/app-vim/colorv/colorv-3.0.2-r1.ebuild
new file mode 100644 (file)
index 0000000..05ba503
--- /dev/null
+++ b/app-vim/colorv/colorv-3.0.2-r1.ebuild
@@ -0,0 +1,34 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+
+# TODO: supposedly supports python3... but that conflicts with pygtk
+PYTHON_COMPAT=( python2_7 )
+
+inherit python-single-r1 vim-plugin
+
+DESCRIPTION="vim plugin: a color tool for vim"
+HOMEPAGE="http://www.vim.org/scripts/script.php?script_id=3597 https://github.com/Rykka/colorv.vim/"
+LICENSE="MIT"
+KEYWORDS="~amd64 ~x86"
+IUSE=""
+REQUIRED_USE="${PYTHON_REQUIRED_USE}"
+
+VIM_PLUGIN_HELPFILES="${PN}.txt"
+
+RDEPEND="
+       ${PYTHON_DEPS}
+       || (
+               app-editors/vim[python,${PYTHON_USEDEP}]
+               ( app-editors/gvim[python,${PYTHON_USEDEP}] dev-python/pygtk:2[${PYTHON_USEDEP}] )
+       )"
+
+src_prepare() {
+       eapply_user
+
+       # fix shebangs in Python files (note: one of them is python3...)
+       sed -i -e "1s:python[23]:${EPYTHON}:" autoload/colorv/*.py || die 
+       # use python colorpicker instead of C-based picker
+       rm autoload/colorv/{colorpicker.c,Makefile} || die
+}