app-admin/eselect: Sync with Gentoo

It's from Gentoo commit e43431bd26a31be3cf420a123d2ff6300ab037c2.

sdk_container/src/third_party/portage-stable/app-admin/eselect/Manifest

@@ -1,2 +1,3 @@
 DIST eselect-1.4.27.tar.xz 184464 BLAKE2B 718874f4d0651194f361ca3202e5140982812bf486c8efe82354944d55206b0113fa135992203e8baa00019c3fd773a90ddaf67157c16f4ac2d69965d9822fbd SHA512 f534785fc1f79869840f420b4ab2b2bf35593c504cce878a6d3d07f75012cf32288009ea9ac2a5607dba216a794110a64c5f2c54d5d8a3c641328489cecc024b
 DIST eselect-1.4.28.tar.xz 184692 BLAKE2B 86d1bbc0cb618f6edf49753c9f2be0f67670590ae55b8d2a8824940a5efa8462e395e1ee7f42379bd4ea64ea74f775a78e0a3a23ed565c67c3485f7e4e2d7a83 SHA512 26ac77465e2d6ab5193083c350cfd027d73ecd6d2702fc5f3db90373e92bf3722aead99c9b00b540c7972761620a485941c897854fe110454a4c6897f3f92868
+DIST eselect-1.4.29.tar.xz 185948 BLAKE2B bb387a14c81d5ff5bf2e6e703465b24140b047f1464dee3c7fc0a125c9d94544a9afd801b42d2902dd6dee1af705f7dcfad854286d7e243a0f654cec35ab8eea SHA512 0466be2634f9d632d628cb11793d604002d989c222758ed33259c6b1dede80765d80f782242b22704e890bde84b2e1e3b3fb3d31574812cc803aad64ba8e7cf6

sdk_container/src/third_party/portage-stable/app-admin/eselect/eselect-1.4.29.ebuild

@@ -0,0 +1,61 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+# Packages sharing a common release tarball:
+# app-admin/eselect
+# app-emacs/eselect-mode
+# Please bump and mark them stable together!
+
+inherit bash-completion-r1
+
+DESCRIPTION="Gentoo's multi-purpose configuration and management tool"
+HOMEPAGE="https://wiki.gentoo.org/wiki/Project:Eselect"
+SRC_URI="https://dev.gentoo.org/~ulm/eselect/${P}.tar.xz"
+
+LICENSE="GPL-2+ || ( GPL-2+ CC-BY-SA-4.0 )"
+SLOT="0"
+KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
+IUSE="doc emacs vim-syntax"
+
+# coreutils for realpath
+DEPEND="sys-apps/coreutils
+	sys-apps/sed"
+RDEPEND="${DEPEND}
+	sys-apps/file
+	sys-libs/ncurses:0"
+BDEPEND="doc? ( dev-python/docutils )"
+PDEPEND="emacs? ( app-emacs/eselect-mode )
+	vim-syntax? ( app-vim/eselect-syntax )"
+
+src_compile() {
+	emake
+	use doc && emake html
+}
+
+src_install() {
+	emake DESTDIR="${D}" install
+	newbashcomp misc/${PN}.bashcomp ${PN}
+	dodoc AUTHORS ChangeLog NEWS README TODO doc/*.txt
+	if use doc; then
+		docinto html
+		dodoc *.html doc/*.html doc/*.css
+	fi
+
+	# needed by news module
+	keepdir /var/lib/gentoo/news
+	if ! use prefix; then
+		fowners root:portage /var/lib/gentoo/news
+		fperms g+w /var/lib/gentoo/news
+	fi
+}
+
+pkg_postinst() {
+	# fowners in src_install doesn't work for the portage group:
+	# merging changes the group back to root
+	if ! use prefix; then
+		chgrp portage "${EROOT}/var/lib/gentoo/news" \
+			&& chmod g+w "${EROOT}/var/lib/gentoo/news"
+	fi
+}