#!/bin/bash
# CVS/Git export script
# distributed by puppet

# this takes about 1.5mins to run the first time. <45s thereafter

# if the lv is really small (2G), the default inode ratio is too large.
# eg. mkfs.ext2 -i 4096 /dev/vg/var_mastermirror-staging

# WARNING: Do NOT use CVS -D without resolving bug 183926 first, or bug 401633 happens.

# Notes 2015/12/14 by robbat2
# This entire script was run on the CVS server directly, as it was MUCH faster
# than remote checkouts. In the era of Git, this script can probably be merged
# with rsync-gen.sh instead.

export CVSROOT="/var/cvsroot"
export GITROOT="/var/gitroot"

CVS="/usr/bin/cvs -Q -T /mnt/cvstmp"
CVS_UP="${CVS} up -A -P -C -d"
CVS_CO="${CVS} -d ${CVSROOT} co -A -P"

GIT="/usr/bin/git"
GIT_CL="${GIT} clone -q"
GIT_PL="${GIT} pull -q --ff-only --no-stat --no-rebase"

WGET="/usr/bin/wget --timeout=2 -q"

STAGING_DIR="/var/tmp/mastermirror-staging"
STAGING_CHANGELOG_DIR="/var/tmp/mastermirror-staging/changelogs"

HERDS_XML_URI=https://api.gentoo.org/packages/herds.xml

# TODO: we should probably be checking out to a directory and only rsyncing
# that on success of all checkouts.

# sanity checking
if ! grep -sq ${STAGING_DIR} /proc/mounts; then
	echo "lv not mounted" >&2
	exit 1
fi

# repo/gentoo (formerly CVS gentoo-x86)
if [[ ! -d ${STAGING_DIR}/gentoo-x86 ]] ; then
	# not checked out yet, run initial co
	${GIT_CL} file://${GITROOT}/repo/gentoo.git/ ${STAGING_DIR}/gentoo-x86
else
	cd ${STAGING_DIR}/gentoo-x86
	${GIT_PL}
fi

# gentoo-news
if [[ ! -d ${STAGING_DIR}/gentoo-news ]]; then
	# not checked out yet, run initial co
	cd ${STAGING_DIR}
	${GIT_CL} file://${GITROOT}/data/gentoo-news.git/ gentoo-news
else
	cd ${STAGING_DIR}/gentoo-news
	${GIT_PL}
fi

# herds.xml
if [[ ! -d ${STAGING_DIR}/herds ]]; then
	mkdir -p ${STAGING_DIR}/herds
fi
cd ${STAGING_DIR}/herds
f=herds.xml
${WGET} -q "${HERDS_XML_URI}" -O ${f}.tmp && mv -f ${f}{.tmp,}  || rm -f ${f}.tmp

# dtd
if [[ ! -d ${STAGING_DIR}/dtd ]]; then
	# not checked out yet, run initial co
	cd ${STAGING_DIR}
	${GIT_CL} file://${GITROOT}/data/dtd.git/ dtd
else
	cd ${STAGING_DIR}/dtd
	${GIT_PL}
fi

# glsa
if [[ ! -d ${STAGING_DIR}/glsa ]]; then
	# not checked out yet, run initial co
	cd ${STAGING_DIR}
	${GIT_CL} file://${GITROOT}/data/glsa.git/ glsa
else
	cd ${STAGING_DIR}/glsa
	${GIT_PL}
fi

# changelogs
if [[ ! -d ${STAGING_CHANGELOG_DIR} ]]; then
	# not checked out yet, run initial co
	${GIT_CL} file://${GITROOT}/data/gentoo-changelogs.git/ ${STAGING_CHANGELOG_DIR}
else
	cd ${STAGING_CHANGELOG_DIR}
	${GIT_PL}
fi