dev-perl/App-cpanminus: Add -9999 version

This work is based on the existing work in app-admin/rex, as latest
cpanm uses Dzil in its build chain.

TODO: Provision fatlib entries *exclusively* from installed gentoo
stuff, but that might be really tricky.

What it currently does is fatpack bundled copies of upstream stuff

Package-Manager: Portage-2.3.99, Repoman-2.3.22
Signed-off-by: Kent Fredric <kentnl@gentoo.org>

1 files changed, 108 insertions, 0 deletions

diff --git a/dev-perl/App-cpanminus/App-cpanminus-9999.ebuild b/dev-perl/App-cpanminus/App-cpanminus-9999.ebuild
new file mode 100644
index 000000000000..5c7c7bda4a07
--- /dev/null
+++ b/dev-perl/App-cpanminus/App-cpanminus-9999.ebuild
@@ -0,0 +1,108 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+if [[ ${PV} == 9999 ]]; then
+	GITHUB_USER=miyagawa
+	GITHUB_REPO=cpanminus
+	EGIT_REPO_URI="https://github.com/${GITHUB_USER}/${GITHUB_REPO}.git"
+	EGIT_BRANCH="devel"
+	EGIT_CHECKOUT_DIR="${WORKDIR}/${PN}-git"
+	VCS_ECLASS="git-r3"
+else
+	DIST_AUTHOR=MIYAGAWA
+	DIST_VERSION=1.7044
+	KEYWORDS="amd64 ~ppc x86"
+fi
+inherit perl-module ${VCS_ECLASS}
+
+DESCRIPTION="Get, unpack, build and install modules from CPAN"
+SLOT="0"
+IUSE="test"
+RESTRICT="!test? ( test )"
+
+GIT_DEPENDS="
+	dev-perl/Dist-Milla
+	dev-perl/Dist-Zilla
+	dev-perl/Dist-Zilla-Plugin-Run
+	dev-perl/Perl-Version
+	dev-perl/App-FatPacker
+	dev-perl/Module-Install
+	dev-perl/Module-Signature
+	dev-perl/Perl-Strip
+"
+BDEPEND="${RDEPEND}
+	virtual/perl-ExtUtils-MakeMaker
+	test? ( virtual/perl-Test-Simple )
+"
+[[ ${PV} == 9999 ]] && BDEPEND+=" ${GIT_DEPENDS}"
+
+dzil_env_setup() {
+	# NextRelease noise :(
+	mkdir -p ~/.dzil/
+	local user="$(whoami)"
+	local host="$(hostname)"
+	printf '[%%User]\nname = %s\nemail = %s' "${user}" "${user}@${host}" >> ~/.dzil/config.ini
+}
+dzil_to_distdir() {
+	local dzil_root dest has_missing modname dzil_version
+	dzil_root="$1"
+	dest="$2"
+
+	cd "${dzil_root}" || die "Can't enter git workdir '${dzil_root}'";
+
+	dzil_env_setup
+
+	dzil_version="$(dzil version)" || die "Error invoking 'dzil version'"
+	einfo "Generating CPAN dist with ${dzil_version}"
+
+	has_missing=""
+
+	einfo "Checking dzil authordeps"
+	while IFS= read -d $'\n' -r modname; do
+		if [[ -z "${has_missing}" ]]; then
+		has_missing=1
+			eerror "'dzil authordeps' indicates missing build dependencies"
+			eerror "These will prevent building, please report a bug"
+			eerror "Missing:"
+		fi
+		eerror "  ${modname}"
+	done < <( dzil authordeps --missing --versions )
+
+	[[ -z "${has_missing}" ]] || die "Satisfy all missing authordeps first"
+
+	einfo "Checking dzil build deps"
+	while IFS= read -d $'\n' -r modname; do
+		if [[ -z "${has_missing}" ]]; then
+			has_missing=1
+			ewarn "'dzil listdeps' indicates missing build dependencies"
+			ewarn "These may prevent building, please report a bug if they do"
+			ewarn "Missing:"
+		fi
+		ewarn "  ${modname}"
+	done < <( dzil listdeps --missing --versions --author )
+
+	einfo "Generating release"
+	dzil build --notgz --in "${dest}" || die "Unable to build CPAN dist in '${dest}'"
+}
+
+src_unpack() {
+	if [[ ${PV} == 9999 ]]; then
+		"${VCS_ECLASS}"_src_unpack
+		mkdir -p "${S}" || die "Can't make ${S}"
+	else
+		default
+	fi
+}
+
+src_prepare() {
+	if [[ ${PV} == 9999 ]]; then
+		# Uses git sources in WORKDIR/rex-git
+		# to generate a CPAN-style tree in ${S}
+		# before letting perl-module.eclass do the rest
+		dzil_to_distdir "${EGIT_CHECKOUT_DIR}/App-cpanminus" "${S}"
+	fi
+	cd "${S}" || die "Can't enter build dir"
+	perl-module_src_prepare
+}