Use git instead of rsync for the Gentoo overlay

ansible/playbooks/roles/compatibility_layer/tasks/add_overlay.yml

@@ -91,8 +91,8 @@
     - sync_gentoo_dtd
     - sync_gentoo_glsa
     - sync_gentoo_news
+    - sync_overlay_cache
     #- sync_gentoo_projects_xml
-    #- sync_overlay_cache
 
 - name: Remove the old Gentoo overlay directory
   file:

ansible/playbooks/roles/compatibility_layer/templates/sync_gentoo_cache.j2

@@ -0,0 +1,34 @@
+#!/bin/bash
+
+repository_name="${1}"
+repository_path="${3}"
+
+[[ ${repository_name} == "gentoo" ]] || exit 0
+
+source {{ gentoo_prefix_path }}/lib/gentoo/functions.sh
+
+# Number of jobs for egencache, default is number or processors.
+parallel_jobs="$(nproc)"
+
+if [[ -f ${repository_path}/metadata/timestamp.x ]]; then
+	portage_current_timestamp=$(cut -f 1 -d " " "${repository_path}/metadata/timestamp.x" )
+else
+	portage_current_timestamp=0
+fi
+
+ebegin "Fetching metadata timestamp for ${repository_name}"
+rsync -aq rsync://rsync.gentoo.org/gentoo-portage/metadata/timestamp.x "${repository_path}"/metadata/timestamp.x
+eend $?
+portage_new_timestamp=$(cut -f 1 -d " " "${repository_path}/metadata/timestamp.x" )
+
+if [[ ${portage_current_timestamp} -lt ${portage_new_timestamp} ]]; then
+	ebegin "Fetching pre-generated metadata cache for ${repository_name}"
+	rsync -aq rsync://rsync.gentoo.org/gentoo-portage/metadata/md5-cache/ "${repository_path}"/metadata/md5-cache/
+	eend $?
+else
+	einfo "Metadata cache for ${repository_name} already recent, no need to fetch it :-)"
+fi
+
+ebegin "Updating metadata cache for ${repository_name}"
+egencache --jobs="${parallel_jobs}" --repo="${repository_name}" --update --update-use-local-desc
+eend $?

ansible/playbooks/roles/compatibility_layer/templates/sync_gentoo_dtd.j2

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+repository_name="${1}"
+repository_path="${3}"
+
+[[ ${repository_name} == "gentoo" ]] || exit 0
+
+source {{ gentoo_prefix_path }}/lib/gentoo/functions.sh
+
+DTDDIR="${repository_path}"/metadata/dtd
+ebegin "Updating DTDs"
+if [[ -e ${DTDDIR} ]]; then
+	git -C "${DTDDIR}" pull -q --ff-only
+else
+	git clone -q https://anongit.gentoo.org/git/data/dtd.git "${DTDDIR}"
+fi
+eend "$?"

ansible/playbooks/roles/compatibility_layer/templates/sync_gentoo_glsa.j2

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+repository_name="${1}"
+repository_path="${3}"
+
+[[ ${repository_name} == "gentoo" ]] || exit 0
+
+source {{ gentoo_prefix_path }}/lib/gentoo/functions.sh
+
+GLSADIR="${repository_path}"/metadata/glsa
+ebegin "Updating GLSAs"
+if [[ -e ${GLSADIR} ]]; then
+	git -C "${GLSADIR}" pull -q --ff-only
+else
+	git clone -q https://anongit.gentoo.org/git/data/glsa.git "${GLSADIR}"
+fi
+eend "$?"

ansible/playbooks/roles/compatibility_layer/templates/sync_gentoo_news.j2

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+repository_name="${1}"
+repository_path="${3}"
+
+[[ ${repository_name} == "gentoo" ]] || exit 0
+
+source {{ gentoo_prefix_path }}/lib/gentoo/functions.sh
+
+NEWSDIR="${repository_path}"/metadata/news
+ebegin "Updating news items"
+if [[ -e ${NEWSDIR} ]]; then
+	git -C "${NEWSDIR}" pull -q --ff-only
+else
+	git clone -q https://anongit.gentoo.org/git/data/gentoo-news.git "${NEWSDIR}"
+fi
+eend $? "Try to remove ${NEWSDIR}"

ansible/playbooks/roles/compatibility_layer/templates/sync_gentoo_projects_xml.j2

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+repository_name="${1}"
+repository_path="${3}"
+
+[[ ${repository_name} == "gentoo" ]] || exit 0
+
+source {{ gentoo_prefix_path }}/lib/gentoo/functions.sh
+
+ebegin "Updating projects.xml"
+wget -q -P "${repository_path}"/metadata/ -N https://api.gentoo.org/metastructure/projects.xml
+eend $?

ansible/playbooks/roles/compatibility_layer/templates/sync_overlay_cache.j2

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+repository_name="${1}"
+
+[[ ${repository_name} == "gentoo" ]] && exit 0
+
+source {{ gentoo_prefix_path }}/lib/gentoo/functions.sh
+
+# Number of jobs for egencache, default is number or processors.
+parallel_jobs="$(nproc)"
+
+ebegin "Updating metadata cache for ${repository_name}"
+egencache --jobs="${parallel_jobs}" --repo="${repository_name}" --update --update-use-local-desc
+eend $?