app-vim/rainbow: initial import

Signed-off-by: Anna (cybertailor) Vyalkova <cyber+gentoo@sysrq.in>

app-vim/rainbow/Manifest

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+DIST rainbow-3.4.0_p20200528.tar.gz 14901 BLAKE2B c6e5f2ab3fc16fe0cf2e00429027416d516a08ada49fb24207f8f0a410b3b29ffee6f6eab74f8f8f8be6425e28dc61fe52d994dc020b457c10aa0b4524b6ab68 SHA512 e91e0b969d46dc2507cfcdfd8e9ceea26e863ecf2a532b51129744e961c383c24d63e2a213cfffbad22c278d65652aff9c97afcfe6f271ffd60d9a57305a0948

app-vim/rainbow/files/README.gentoo

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+CMakeLists.txt syntax highlighting is broken with rainbow enabled.
+Add this to your vimrc to work around the bug:
+
+let g:rainbow_conf = {
+\   'separately': {
+\       'cmake': 0,
+\   }
+\}

app-vim/rainbow/metadata.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+<pkgmetadata>
+	<maintainer type="person">
+		<email>cyber+gentoo@sysrq.in</email>
+		<name>Anna</name>
+	</maintainer>
+</pkgmetadata>

app-vim/rainbow/rainbow-3.4.0_p20200528.ebuild

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+# Copyright 2021 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit readme.gentoo-r1 vim-plugin
+
+COMMIT="4d15633cdaf61602e1d9fd216a77fc02e0881b2d"
+DESCRIPTION="vim plugin: Rainbow Parentheses Improved"
+HOMEPAGE="http://www.vim.org/scripts/script.php?script_id=4176
+https://github.com/luochen1990/rainbow"
+SRC_URI="https://github.com/luochen1990/${PN}/archive/${COMMIT}.tar.gz -> ${P}.tar.gz"
+S="${WORKDIR}/${PN}-${COMMIT}"
+
+LICENSE="Apache-2.0"
+KEYWORDS="~amd64 ~x86"
+
+VIM_PLUGIN_HELPFILES="rainbow"
+
+src_install() {
+	rm -r tests || die
+	vim-plugin_src_install
+	readme.gentoo_create_doc
+}
+
+pkg_postinst() {
+	vim-plugin_pkg_postinst
+	readme.gentoo_print_elog
+}