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gentoo-overlay/eclass/git.eclass

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# Copyright 1999-2013 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/eclass/git.eclass,v 1.60 2013/01/15 11:23:43 jlec Exp $
# @DEPRECATED
# This eclass has been superseded by git-2 eclass.
# Please modify your ebuilds to use that one instead.
# @ECLASS: git.eclass
# @MAINTAINER:
# Donnie Berkholz <dberkholz@gentoo.org>
# @BLURB: Fetching and unpacking of git repositories
# @DESCRIPTION:
# The git eclass provides functions to fetch, patch and bootstrap
# software sources from git repositories and is based on the subversion eclass.
# It is necessary to define at least the EGIT_REPO_URI variable.
#
# THANKS TO:
# Fernando J. Pereda <ferdy@gentoo.org>
inherit eutils
EGIT="git.eclass"
# We DEPEND on a not too ancient git version
DEPEND=">=dev-vcs/git-1.6"
EXPORTED_FUNCTIONS="src_unpack"
case "${EAPI:-0}" in
2|3|4|5) EXPORTED_FUNCTIONS="${EXPORTED_FUNCTIONS} src_prepare" ;;
1|0) ;;
*) die "EAPI=${EAPI} is not supported" ;;
esac
EXPORT_FUNCTIONS ${EXPORTED_FUNCTIONS}
# define some nice defaults but only if nothing is set already
: ${HOMEPAGE:=http://git-scm.com/}
# @ECLASS-VARIABLE: EGIT_QUIET
# @DESCRIPTION:
# Set to non-empty value to supress some eclass messages.
: ${EGIT_QUIET:=${ESCM_QUIET}}
# @ECLASS-VARIABLE: EGIT_STORE_DIR
# @DESCRIPTION:
# Storage directory for git sources.
# Can be redefined.
: ${EGIT_STORE_DIR:="${PORTAGE_ACTUAL_DISTDIR-${DISTDIR}}/git-src"}
# @ECLASS-VARIABLE: EGIT_UNPACK_DIR
# @DESCRIPTION:
# Directory to unpack git sources in.
# @ECLASS-VARIABLE: EGIT_HAS_SUBMODULES
# @DESCRIPTION:
# Set this to non-empty value to enable submodule support (slower).
: ${EGIT_HAS_SUBMODULES:=}
# @ECLASS-VARIABLE: EGIT_FETCH_CMD
# @DESCRIPTION:
# Command for cloning the repository.
: ${EGIT_FETCH_CMD:="git clone"}
# @ECLASS-VARIABLE: EGIT_UPDATE_CMD
# @DESCRIPTION:
# Git fetch command.
if [[ -n ${EGIT_HAS_SUBMODULES} ]]; then
EGIT_UPDATE_CMD="git pull -f -u"
else
EGIT_UPDATE_CMD="git fetch -f -u"
fi
# @ECLASS-VARIABLE: EGIT_DIFFSTAT_CMD
# @DESCRIPTION:
# Git command for diffstat.
EGIT_DIFFSTAT_CMD="git --no-pager diff --stat"
# @ECLASS-VARIABLE: EGIT_OPTIONS
# @DESCRIPTION:
# This variable value is passed to clone and fetch.
: ${EGIT_OPTIONS:=}
# @ECLASS-VARIABLE: EGIT_MASTER
# @DESCRIPTION:
# Variable for specifying master branch.
# Usefull when upstream don't have master branch.
: ${EGIT_MASTER:=master}
# @ECLASS-VARIABLE: EGIT_REPO_URI
# @DESCRIPTION:
# URI for the repository
# e.g. http://foo, git://bar
# Supported protocols:
# http://
# https://
# git://
# git+ssh://
# rsync://
# ssh://
eval X="\$${PN//[-+]/_}_LIVE_REPO"
if [[ ${X} = "" ]]; then
: ${EGIT_REPO_URI:=}
else
EGIT_REPO_URI="${X}"
fi
# @ECLASS-VARIABLE: EGIT_PROJECT
# @DESCRIPTION:
# Project name, it must be unique across EGIT_STORE_DIR.
# Git eclass will check out the git repository into ${EGIT_STORE_DIR}/${EGIT_PROJECT}/${EGIT_REPO_URI##*/}
# Default is ${PN}.
: ${EGIT_PROJECT:=${PN}}
# @ECLASS-VARIABLE: EGIT_BOOTSTRAP
# @DESCRIPTION:
# bootstrap script or command like autogen.sh or etc...
: ${EGIT_BOOTSTRAP:=}
# @ECLASS-VARIABLE: EGIT_OFFLINE
# @DESCRIPTION:
# Set this variable to a non-empty value to disable the automatic updating of
# an GIT source tree. This is intended to be set outside the git source
# tree by users.
: ${EGIT_OFFLINE:=${ESCM_OFFLINE}}
# @ECLASS-VARIABLE: EGIT_PATCHES
# @DESCRIPTION:
# Similar to PATCHES array from base.eclass
# Only difference is that this patches are applied before bootstrap.
# Please take note that this variable should be bash array.
# @ECLASS-VARIABLE: EGIT_BRANCH
# @DESCRIPTION:
# git eclass can fetch any branch in git_fetch().
eval X="\$${PN//[-+]/_}_LIVE_BRANCH"
if [[ "${X}" = "" ]]; then
: ${EGIT_BRANCH:=master}
else
EGIT_BRANCH="${X}"
fi
# @ECLASS-VARIABLE: EGIT_COMMIT
# @DESCRIPTION:
# git eclass can checkout any commit.
eval X="\$${PN//[-+]/_}_LIVE_COMMIT"
if [[ "${X}" = "" ]]; then
: ${EGIT_COMMIT:=${EGIT_BRANCH}}
else
EGIT_COMMIT="${X}"
fi
# @ECLASS-VARIABLE: EGIT_REPACK
# @DESCRIPTION:
# Set to non-empty value to repack objects to save disk space. However this can
# take a long time with VERY big repositories.
: ${EGIT_REPACK:=}
# @ECLASS-VARIABLE: EGIT_PRUNE
# @DESCRIPTION:
# Set to non-empty value to prune loose objects on each fetch. This is useful
# if upstream rewinds and rebases branches often.
: ${EGIT_PRUNE:=}
# @FUNCTION: git_submodules
# @DESCRIPTION:
# Internal function wrapping the submodule initialisation and update
git_submodules() {
if [[ -n ${EGIT_HAS_SUBMODULES} ]]; then
debug-print "git submodule init"
git submodule init
debug-print "git submodule sync"
git submodule sync
debug-print "git submodule update"
git submodule update
fi
}
# @FUNCTION: git_branch
# @DESCRIPTION:
# Internal function that changes branch for the repo based on EGIT_TREE and
# EGIT_BRANCH variables.
git_branch() {
local branchname=branch-${EGIT_BRANCH} src=origin/${EGIT_BRANCH}
if [[ "${EGIT_COMMIT}" != "${EGIT_BRANCH}" ]]; then
branchname=tree-${EGIT_COMMIT}
src=${EGIT_COMMIT}
fi
debug-print "git checkout -b ${branchname} ${src}"
git checkout -b ${branchname} ${src} &> /dev/null
unset branchname src
}
# @FUNCTION: git_fetch
# @DESCRIPTION:
# Gets repository from EGIT_REPO_URI and store it in specified EGIT_STORE_DIR
git_fetch() {
debug-print-function ${FUNCNAME} "$@"
eqawarn "git.eclass is deprecated."
eqawarn "Please update your ebuilds to use git-2 instead. For details, see"
eqawarn "http://archives.gentoo.org/gentoo-dev/msg_b7ba363cae580845819ae3501fb157e9.xml"
local GIT_DIR EGIT_CLONE_DIR oldsha1 cursha1 extra_clone_opts upstream_branch
[[ -z ${EGIT_HAS_SUBMODULES} ]] && export GIT_DIR
# choose if user wants elog or just einfo.
if [[ -n ${EGIT_QUIET} ]]; then
elogcmd="einfo"
else
elogcmd="elog"
fi
# If we have same branch and the tree we can do --depth 1 clone
# which outputs into really smaller data transfers.
# Sadly we can do shallow copy for now because quite a few packages need .git
# folder.
#[[ ${EGIT_COMMIT} = ${EGIT_BRANCH} ]] && \
# EGIT_FETCH_CMD="${EGIT_FETCH_CMD} --depth 1"
if [[ -n ${EGIT_TREE} ]] ; then
EGIT_COMMIT=${EGIT_TREE}
ewarn "QA: Usage of deprecated EGIT_TREE variable detected."
ewarn "QA: Use EGIT_COMMIT variable instead."
fi
# EGIT_REPO_URI is empty.
[[ -z ${EGIT_REPO_URI} ]] && die "${EGIT}: EGIT_REPO_URI is empty."
# check for the protocol or pull from a local repo.
if [[ -z ${EGIT_REPO_URI%%:*} ]] ; then
case ${EGIT_REPO_URI%%:*} in
git*|http|https|rsync|ssh) ;;
*) die "${EGIT}: protocol for fetch from "${EGIT_REPO_URI%:*}" is not yet implemented in eclass." ;;
esac
fi
# initial clone, we have to create master git storage directory and play
# nicely with sandbox
if [[ ! -d ${EGIT_STORE_DIR} ]] ; then
debug-print "${FUNCNAME}: initial clone. creating git directory"
addwrite /
mkdir -m 775 -p "${EGIT_STORE_DIR}" \
|| die "${EGIT}: can't mkdir ${EGIT_STORE_DIR}."
export SANDBOX_WRITE="${SANDBOX_WRITE%%:/}"
fi
cd -P "${EGIT_STORE_DIR}" || die "${EGIT}: can't chdir to ${EGIT_STORE_DIR}"
EGIT_STORE_DIR=${PWD}
# allow writing into EGIT_STORE_DIR
addwrite "${EGIT_STORE_DIR}"
[[ -z ${EGIT_REPO_URI##*/} ]] && EGIT_REPO_URI="${EGIT_REPO_URI%/}"
EGIT_CLONE_DIR="${EGIT_PROJECT}"
debug-print "${FUNCNAME}: EGIT_OPTIONS = \"${EGIT_OPTIONS}\""
GIT_DIR="${EGIT_STORE_DIR}/${EGIT_CLONE_DIR}"
# we also have to remove all shallow copied repositories
# and fetch them again
if [[ -e "${GIT_DIR}/shallow" ]]; then
rm -rf "${GIT_DIR}"
einfo "The ${EGIT_CLONE_DIR} was shallow copy. Refetching."
fi
# repack from bare copy to normal one
if [[ -n ${EGIT_HAS_SUBMODULES} ]] && [[ -d ${GIT_DIR} && ! -d ${GIT_DIR}/.git ]]; then
rm -rf "${GIT_DIR}"
einfo "The ${EGIT_CLONE_DIR} was bare copy. Refetching."
fi
if [[ -z ${EGIT_HAS_SUBMODULES} ]] && [[ -d ${GIT_DIR} && -d ${GIT_DIR}/.git ]]; then
rm -rf "${GIT_DIR}"
einfo "The ${EGIT_CLONE_DIR} was not a bare copy. Refetching."
fi
if [[ -n ${EGIT_HAS_SUBMODULES} ]]; then
upstream_branch=origin/${EGIT_BRANCH}
else
upstream_branch=${EGIT_BRANCH}
extra_clone_opts=--bare
fi
if [[ ! -d ${GIT_DIR} ]] ; then
# first clone
${elogcmd} "GIT NEW clone -->"
${elogcmd} " repository: ${EGIT_REPO_URI}"
debug-print "${EGIT_FETCH_CMD} ${extra_clone_opts} ${EGIT_OPTIONS} \"${EGIT_REPO_URI}\" ${GIT_DIR}"
${EGIT_FETCH_CMD} ${extra_clone_opts} ${EGIT_OPTIONS} "${EGIT_REPO_URI}" ${GIT_DIR} \
|| die "${EGIT}: can't fetch from ${EGIT_REPO_URI}."
pushd "${GIT_DIR}" &> /dev/null
cursha1=$(git rev-parse ${upstream_branch})
${elogcmd} " at the commit: ${cursha1}"
git_submodules
popd &> /dev/null
elif [[ -n ${EGIT_OFFLINE} ]] ; then
pushd "${GIT_DIR}" &> /dev/null
cursha1=$(git rev-parse ${upstream_branch})
${elogcmd} "GIT offline update -->"
${elogcmd} " repository: ${EGIT_REPO_URI}"
${elogcmd} " at the commit: ${cursha1}"
popd &> /dev/null
else
pushd "${GIT_DIR}" &> /dev/null
# Git urls might change, so unconditionally set it here
git config remote.origin.url "${EGIT_REPO_URI}"
# fetch updates
${elogcmd} "GIT update -->"
${elogcmd} " repository: ${EGIT_REPO_URI}"
oldsha1=$(git rev-parse ${upstream_branch})
if [[ -n ${EGIT_HAS_SUBMODULES} ]]; then
debug-print "${EGIT_UPDATE_CMD} ${EGIT_OPTIONS}"
# fix branching
git checkout ${EGIT_MASTER}
for x in $(git branch |grep -v "* ${EGIT_MASTER}" |tr '\n' ' '); do
git branch -D ${x}
done
${EGIT_UPDATE_CMD} ${EGIT_OPTIONS} \
|| die "${EGIT}: can't update from ${EGIT_REPO_URI}."
else
debug-print "${EGIT_UPDATE_CMD} ${EGIT_OPTIONS} origin ${EGIT_BRANCH}:${EGIT_BRANCH}"
${EGIT_UPDATE_CMD} ${EGIT_OPTIONS} origin ${EGIT_BRANCH}:${EGIT_BRANCH} \
|| die "${EGIT}: can't update from ${EGIT_REPO_URI}."
fi
git_submodules
cursha1=$(git rev-parse ${upstream_branch})
# write out message based on the revisions
if [[ "${oldsha1}" != "${cursha1}" ]]; then
${elogcmd} " updating from commit: ${oldsha1}"
${elogcmd} " to commit: ${cursha1}"
else
${elogcmd} " at the commit: ${cursha1}"
# @ECLASS-VARIABLE: LIVE_FAIL_FETCH_IF_REPO_NOT_UPDATED
# @DESCRIPTION:
# If this variable is set to TRUE in make.conf or somewhere in
# enviroment the package will fail if there is no update, thus in
# combination with --keep-going it would lead in not-updating
# pakcages that are up-to-date.
# TODO: this can lead to issues if more projects/packages use same repo
[[ ${LIVE_FAIL_FETCH_IF_REPO_NOT_UPDATED} = true ]] && \
debug-print "${FUNCNAME}: Repository \"${EGIT_REPO_URI}\" is up-to-date. Skipping." && \
die "${EGIT}: Repository \"${EGIT_REPO_URI}\" is up-to-date. Skipping."
fi
${EGIT_DIFFSTAT_CMD} ${oldsha1}..${upstream_branch}
popd &> /dev/null
fi
pushd "${GIT_DIR}" &> /dev/null
if [[ -n ${EGIT_REPACK} ]] || [[ -n ${EGIT_PRUNE} ]]; then
ebegin "Garbage collecting the repository"
local args
[[ -n ${EGIT_PRUNE} ]] && args='--prune'
git gc ${args}
eend $?
fi
popd &> /dev/null
# export the git version
export EGIT_VERSION="${cursha1}"
# log the repo state
[[ "${EGIT_COMMIT}" != "${EGIT_BRANCH}" ]] && ${elogcmd} " commit: ${EGIT_COMMIT}"
${elogcmd} " branch: ${EGIT_BRANCH}"
${elogcmd} " storage directory: \"${GIT_DIR}\""
if [[ -n ${EGIT_HAS_SUBMODULES} ]]; then
pushd "${GIT_DIR}" &> /dev/null
debug-print "rsync -rlpgo . \"${EGIT_UNPACK_DIR:-${S}}\""
time rsync -rlpgo . "${EGIT_UNPACK_DIR:-${S}}"
popd &> /dev/null
else
unset GIT_DIR
debug-print "git clone -l -s -n \"${EGIT_STORE_DIR}/${EGIT_CLONE_DIR}\" \"${EGIT_UNPACK_DIR:-${S}}\""
git clone -l -s -n "${EGIT_STORE_DIR}/${EGIT_CLONE_DIR}" "${EGIT_UNPACK_DIR:-${S}}"
fi
pushd "${EGIT_UNPACK_DIR:-${S}}" &> /dev/null
git_branch
# submodules always reqire net (thanks to branches changing)
[[ -z ${EGIT_OFFLINE} ]] && git_submodules
popd &> /dev/null
echo ">>> Unpacked to ${EGIT_UNPACK_DIR:-${S}}"
}
# @FUNCTION: git_bootstrap
# @DESCRIPTION:
# Runs bootstrap command if EGIT_BOOTSTRAP variable contains some value
# Remember that what ever gets to the EGIT_BOOTSTRAP variable gets evaled by bash.
git_bootstrap() {
debug-print-function ${FUNCNAME} "$@"
if [[ -n ${EGIT_BOOTSTRAP} ]] ; then
pushd "${S}" > /dev/null
einfo "Starting bootstrap"
if [[ -f ${EGIT_BOOTSTRAP} ]]; then
# we have file in the repo which we should execute
debug-print "$FUNCNAME: bootstraping with file \"${EGIT_BOOTSTRAP}\""
if [[ -x ${EGIT_BOOTSTRAP} ]]; then
eval "./${EGIT_BOOTSTRAP}" \
|| die "${EGIT}: bootstrap script failed"
else
eerror "\"${EGIT_BOOTSTRAP}\" is not executable."
eerror "Report upstream, or bug ebuild maintainer to remove bootstrap command."
die "${EGIT}: \"${EGIT_BOOTSTRAP}\" is not executable."
fi
else
# we execute some system command
debug-print "$FUNCNAME: bootstraping with commands \"${EGIT_BOOTSTRAP}\""
eval "${EGIT_BOOTSTRAP}" \
|| die "${EGIT}: bootstrap commands failed."
fi
einfo "Bootstrap finished"
popd > /dev/null
fi
}
# @FUNCTION: git_apply_patches
# @DESCRIPTION:
# Apply patches from EGIT_PATCHES bash array.
# Preferred is using the variable as bash array but for now it allows to write
# it also as normal space separated string list. (This part of code should be
# removed when all ebuilds get converted on bash array).
git_apply_patches() {
debug-print-function ${FUNCNAME} "$@"
pushd "${EGIT_UNPACK_DIR:-${S}}" > /dev/null
if [[ ${#EGIT_PATCHES[@]} -gt 1 ]] ; then
for i in "${EGIT_PATCHES[@]}"; do
debug-print "$FUNCNAME: git_autopatch: patching from ${i}"
epatch "${i}"
done
elif [[ -n ${EGIT_PATCHES} ]]; then
# no need for loop if space separated string is passed.
debug-print "$FUNCNAME: git_autopatch: patching from ${EGIT_PATCHES}"
epatch "${EGIT_PATCHES}"
fi
popd > /dev/null
}
# @FUNCTION: git_src_unpack
# @DESCRIPTION:
# src_upack function, calls src_prepare one if EAPI!=2.
git_src_unpack() {
debug-print-function ${FUNCNAME} "$@"
git_fetch || die "${EGIT}: unknown problem in git_fetch()."
has src_prepare ${EXPORTED_FUNCTIONS} || git_src_prepare
}
# @FUNCTION: git_src_prepare
# @DESCRIPTION:
# src_prepare function for git stuff. Patches, bootstrap...
git_src_prepare() {
debug-print-function ${FUNCNAME} "$@"
git_apply_patches
git_bootstrap
}