Use git instead of rsync for the Gentoo overlay

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

@@ -58,6 +58,47 @@
         selectattr('eclass-overrides', 'equalto', True) | map(attribute='name') | join(' ')
       }}
 
+- name: Use git instead of rsync for the Gentoo overlay
+  copy:
+    dest: "{{ gentoo_prefix_path }}/etc/portage/repos.conf/gentoo.conf"
+    mode: "0644"
+    content: |
+      [DEFAULT]
+      main-repo = gentoo
+      sync-git-pull-extra-opts = --quiet
+
+      [gentoo]
+      priority  = 1
+      location  = {{ gentoo_prefix_path }}/var/db/repos/gentoo
+      sync-uri  = https://github.com/gentoo/gentoo.git
+      sync-type = git
+      auto-sync = Yes
+      clone-depth = 1
+
+- name: Create repo.postsync.d directory
+  file:
+    path: "{{ gentoo_prefix_path }}/etc/portage/repo.postsync.d"
+    state: directory
+    mode: '0755'
+
+- name: Add post-sync hooks for Gentoo overlay
+  template:
+    src: "{{ item }}.j2"
+    dest: "{{ gentoo_prefix_path }}/etc/portage/repo.postsync.d/{{ item }}"
+    mode: 0755
+  with_items:
+    - sync_gentoo_cache
+    - sync_gentoo_dtd
+    - sync_gentoo_glsa
+    - sync_gentoo_news
+    - sync_overlay_cache
+    #- sync_gentoo_projects_xml
+
+- name: Remove the old Gentoo overlay directory
+  file:
+    state: absent
+    path: "{{ gentoo_prefix_path }}/var/db/repos/gentoo"
+
 - name: Sync the repositories
   portage:
     sync: 'yes'

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 $?