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878 lines
26 KiB
878 lines
26 KiB
# Copyright 1999-2014 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# $Header: /var/cvsroot/gentoo-x86/eclass/git-r3.eclass,v 1.40 2014/03/24 21:32:31 mgorny Exp $
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# @ECLASS: git-r3.eclass
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# @MAINTAINER:
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# Michał Górny <mgorny@gentoo.org>
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# @BLURB: Eclass for fetching and unpacking git repositories.
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# @DESCRIPTION:
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# Third generation eclass for easing maitenance of live ebuilds using
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# git as remote repository.
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case "${EAPI:-0}" in
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0|1|2|3|4|5)
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;;
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*)
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die "Unsupported EAPI=${EAPI} (unknown) for ${ECLASS}"
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;;
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esac
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if [[ ! ${_GIT_R3} ]]; then
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inherit eutils
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fi
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EXPORT_FUNCTIONS src_unpack
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if [[ ! ${_GIT_R3} ]]; then
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if [[ ! ${_INHERITED_BY_GIT_2} ]]; then
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DEPEND=">=dev-vcs/git-1.8.2.1"
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fi
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# @ECLASS-VARIABLE: EGIT_CLONE_TYPE
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# @DESCRIPTION:
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# Type of clone that should be used against the remote repository.
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# This can be either of: 'mirror', 'single', 'shallow'.
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#
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# This is intended to be set by user in make.conf. Ebuilds are supposed
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# to set EGIT_MIN_CLONE_TYPE if necessary instead.
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#
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# The 'mirror' type clones all remote branches and tags with complete
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# history and all notes. EGIT_COMMIT can specify any commit hash.
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# Upstream-removed branches and tags are purged from the local clone
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# while fetching. This mode is suitable for cloning the local copy
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# for development or hosting a local git mirror. However, clones
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# of repositories with large diverged branches may quickly grow large.
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#
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# The 'single+tags' type clones the requested branch and all tags
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# in the repository. All notes are fetched as well. EGIT_COMMIT
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# can safely specify hashes throughout the current branch and all tags.
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# No purging of old references is done (if you often switch branches,
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# you may need to remove stale branches yourself). This mode is intended
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# mostly for use with broken git servers such as Google Code that fail
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# to fetch tags along with the branch in 'single' mode.
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#
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# The 'single' type clones only the requested branch or tag. Tags
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# referencing commits throughout the branch history are fetched as well,
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# and all notes. EGIT_COMMIT can safely specify only hashes
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# in the current branch. No purging of old references is done (if you
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# often switch branches, you may need to remove stale branches
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# yourself). This mode is suitable for general use.
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#
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# The 'shallow' type clones only the newest commit on requested branch
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# or tag. EGIT_COMMIT can only specify tags, and since the history is
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# unavailable calls like 'git describe' will not reference prior tags.
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# No purging of old references is done. This mode is intended mostly for
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# embedded systems with limited disk space.
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: ${EGIT_CLONE_TYPE:=single}
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# @ECLASS-VARIABLE: EGIT_MIN_CLONE_TYPE
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# @DESCRIPTION:
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# 'Minimum' clone type supported by the ebuild. Takes same values
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# as EGIT_CLONE_TYPE. When user sets a type that's 'lower' (that is,
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# later on the list) than EGIT_MIN_CLONE_TYPE, the eclass uses
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# EGIT_MIN_CLONE_TYPE instead.
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#
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# This variable is intended to be used by ebuilds only. Users are
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# supposed to set EGIT_CLONE_TYPE instead.
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#
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# A common case is to use 'single' whenever the build system requires
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# access to full branch history, or 'single+tags' when Google Code
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# or a similar remote is used that does not support shallow clones
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# and fetching tags along with commits. Please use sparingly, and to fix
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# fatal errors rather than 'non-pretty versions'.
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: ${EGIT_MIN_CLONE_TYPE:=shallow}
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# @ECLASS-VARIABLE: EGIT3_STORE_DIR
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# @DESCRIPTION:
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# Storage directory for git sources.
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#
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# This is intended to be set by user in make.conf. Ebuilds must not set
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# it.
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#
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# EGIT3_STORE_DIR=${DISTDIR}/git3-src
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# @ECLASS-VARIABLE: EGIT_MIRROR_URI
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# @DEFAULT_UNSET
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# @DESCRIPTION:
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# 'Top' URI to a local git mirror. If specified, the eclass will try
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# to fetch from the local mirror instead of using the remote repository.
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#
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# The mirror needs to follow EGIT3_STORE_DIR structure. The directory
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# created by eclass can be used for that purpose.
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#
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# Example:
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# @CODE
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# EGIT_MIRROR_URI="git://mirror.lan/"
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# @CODE
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# @ECLASS-VARIABLE: EGIT_REPO_URI
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# @REQUIRED
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# @DESCRIPTION:
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# URIs to the repository, e.g. git://foo, https://foo. If multiple URIs
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# are provided, the eclass will consider them as fallback URIs to try
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# if the first URI does not work.
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#
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# It can be overriden via env using ${PN}_LIVE_REPO variable.
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#
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# Can be a whitespace-separated list or an array.
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#
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# Example:
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# @CODE
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# EGIT_REPO_URI="git://a/b.git https://c/d.git"
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# @CODE
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# @ECLASS-VARIABLE: EVCS_OFFLINE
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# @DEFAULT_UNSET
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# @DESCRIPTION:
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# If non-empty, this variable prevents any online operations.
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# @ECLASS-VARIABLE: EGIT_BRANCH
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# @DEFAULT_UNSET
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# @DESCRIPTION:
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# The branch name to check out. If unset, the upstream default (HEAD)
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# will be used.
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#
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# It can be overriden via env using ${PN}_LIVE_BRANCH variable.
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# @ECLASS-VARIABLE: EGIT_COMMIT
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# @DEFAULT_UNSET
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# @DESCRIPTION:
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# The tag name or commit identifier to check out. If unset, newest
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# commit from the branch will be used. If set, EGIT_BRANCH will
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# be ignored.
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#
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# It can be overriden via env using ${PN}_LIVE_COMMIT variable.
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# @ECLASS-VARIABLE: EGIT_CHECKOUT_DIR
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# @DESCRIPTION:
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# The directory to check the git sources out to.
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#
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# EGIT_CHECKOUT_DIR=${WORKDIR}/${P}
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# @FUNCTION: _git-r3_env_setup
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# @INTERNAL
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# @DESCRIPTION:
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# Set the eclass variables as necessary for operation. This can involve
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# setting EGIT_* to defaults or ${PN}_LIVE_* variables.
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_git-r3_env_setup() {
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debug-print-function ${FUNCNAME} "$@"
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# check the clone type
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case "${EGIT_CLONE_TYPE}" in
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mirror|single+tags|single|shallow)
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;;
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*)
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die "Invalid EGIT_CLONE_TYPE=${EGIT_CLONE_TYPE}"
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esac
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case "${EGIT_MIN_CLONE_TYPE}" in
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shallow)
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;;
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single)
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if [[ ${EGIT_CLONE_TYPE} == shallow ]]; then
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einfo "git-r3: ebuild needs to be cloned in 'single' mode, adjusting"
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EGIT_CLONE_TYPE=single
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fi
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;;
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single+tags)
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if [[ ${EGIT_CLONE_TYPE} == shallow || ${EGIT_CLONE_TYPE} == single ]]; then
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einfo "git-r3: ebuild needs to be cloned in 'single+tags' mode, adjusting"
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EGIT_CLONE_TYPE=single+tags
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fi
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;;
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mirror)
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if [[ ${EGIT_CLONE_TYPE} != mirror ]]; then
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einfo "git-r3: ebuild needs to be cloned in 'mirror' mode, adjusting"
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EGIT_CLONE_TYPE=mirror
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fi
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;;
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*)
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die "Invalid EGIT_MIN_CLONE_TYPE=${EGIT_MIN_CLONE_TYPE}"
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esac
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local esc_pn livevar
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esc_pn=${PN//[-+]/_}
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livevar=${esc_pn}_LIVE_REPO
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EGIT_REPO_URI=${!livevar:-${EGIT_REPO_URI}}
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[[ ${!livevar} ]] \
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&& ewarn "Using ${livevar}, no support will be provided"
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livevar=${esc_pn}_LIVE_BRANCH
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EGIT_BRANCH=${!livevar:-${EGIT_BRANCH}}
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[[ ${!livevar} ]] \
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&& ewarn "Using ${livevar}, no support will be provided"
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livevar=${esc_pn}_LIVE_COMMIT
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EGIT_COMMIT=${!livevar:-${EGIT_COMMIT}}
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[[ ${!livevar} ]] \
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&& ewarn "Using ${livevar}, no support will be provided"
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# Migration helpers. Remove them when git-2 is removed.
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if [[ ${EGIT_SOURCEDIR} ]]; then
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eerror "EGIT_SOURCEDIR has been replaced by EGIT_CHECKOUT_DIR. While updating"
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eerror "your ebuild, please check whether the variable is necessary at all"
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eerror "since the default has been changed from \${S} to \${WORKDIR}/\${P}."
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eerror "Therefore, proper setting of S may be sufficient."
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die "EGIT_SOURCEDIR has been replaced by EGIT_CHECKOUT_DIR."
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fi
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if [[ ${EGIT_MASTER} ]]; then
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eerror "EGIT_MASTER has been removed. Instead, the upstream default (HEAD)"
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eerror "is used by the eclass. Please remove the assignment or use EGIT_BRANCH"
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eerror "as necessary."
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die "EGIT_MASTER has been removed."
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fi
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if [[ ${EGIT_HAS_SUBMODULES} ]]; then
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eerror "EGIT_HAS_SUBMODULES has been removed. The eclass no longer needs"
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eerror "to switch the clone type in order to support submodules and therefore"
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eerror "submodules are detected and fetched automatically."
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die "EGIT_HAS_SUBMODULES is no longer necessary."
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fi
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if [[ ${EGIT_PROJECT} ]]; then
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eerror "EGIT_PROJECT has been removed. Instead, the eclass determines"
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eerror "the local clone path using path in canonical EGIT_REPO_URI."
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eerror "If the current algorithm causes issues for you, please report a bug."
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die "EGIT_PROJECT is no longer necessary."
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fi
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if [[ ${EGIT_BOOTSTRAP} ]]; then
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eerror "EGIT_BOOTSTRAP has been removed. Please create proper src_prepare()"
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eerror "instead."
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die "EGIT_BOOTSTRAP has been removed."
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fi
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if [[ ${EGIT_NOUNPACK} ]]; then
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eerror "EGIT_NOUNPACK has been removed. The eclass no longer calls default"
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eerror "unpack function. If necessary, please declare proper src_unpack()."
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die "EGIT_NOUNPACK has been removed."
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fi
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}
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# @FUNCTION: _git-r3_set_gitdir
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# @USAGE: <repo-uri>
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# @INTERNAL
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# @DESCRIPTION:
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# Obtain the local repository path and set it as GIT_DIR. Creates
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# a new repository if necessary.
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#
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# <repo-uri> may be used to compose the path. It should therefore be
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# a canonical URI to the repository.
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_git-r3_set_gitdir() {
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debug-print-function ${FUNCNAME} "$@"
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local repo_name=${1#*://*/}
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# strip the trailing slash
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repo_name=${repo_name%/}
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# strip common prefixes to make paths more likely to match
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# e.g. git://X/Y.git vs https://X/git/Y.git
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# (but just one of the prefixes)
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case "${repo_name}" in
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# gnome.org... who else?
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browse/*) repo_name=${repo_name#browse/};;
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# cgit can proxy requests to git
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cgit/*) repo_name=${repo_name#cgit/};;
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# pretty common
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git/*) repo_name=${repo_name#git/};;
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# gentoo.org
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gitroot/*) repo_name=${repo_name#gitroot/};;
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# google code, sourceforge
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p/*) repo_name=${repo_name#p/};;
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# kernel.org
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pub/scm/*) repo_name=${repo_name#pub/scm/};;
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esac
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# ensure a .git suffix, same reason
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repo_name=${repo_name%.git}.git
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# now replace all the slashes
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repo_name=${repo_name//\//_}
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local distdir=${PORTAGE_ACTUAL_DISTDIR:-${DISTDIR}}
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: ${EGIT3_STORE_DIR:=${distdir}/git3-src}
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GIT_DIR=${EGIT3_STORE_DIR}/${repo_name}
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if [[ ! -d ${EGIT3_STORE_DIR} ]]; then
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(
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addwrite /
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mkdir -m0755 -p "${EGIT3_STORE_DIR}" || die
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) || die "Unable to create ${EGIT3_STORE_DIR}"
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fi
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addwrite "${EGIT3_STORE_DIR}"
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if [[ ! -d ${GIT_DIR} ]]; then
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mkdir "${GIT_DIR}" || die
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git init --bare || die
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fi
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}
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# @FUNCTION: _git-r3_set_submodules
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# @USAGE: <file-contents>
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# @INTERNAL
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# @DESCRIPTION:
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# Parse .gitmodules contents passed as <file-contents>
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# as in "$(cat .gitmodules)"). Composes a 'submodules' array that
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# contains in order (name, URL, path) for each submodule.
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_git-r3_set_submodules() {
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debug-print-function ${FUNCNAME} "$@"
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local data=${1}
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# ( name url path ... )
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submodules=()
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local l
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while read l; do
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# submodule.<path>.path=<path>
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# submodule.<path>.url=<url>
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[[ ${l} == submodule.*.url=* ]] || continue
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l=${l#submodule.}
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local subname=${l%%.url=*}
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# skip modules that have 'update = none', bug #487262.
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local upd=$(echo "${data}" | git config -f /dev/fd/0 \
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submodule."${subname}".update)
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[[ ${upd} == none ]] && continue
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submodules+=(
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"${subname}"
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"$(echo "${data}" | git config -f /dev/fd/0 \
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submodule."${subname}".url || die)"
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"$(echo "${data}" | git config -f /dev/fd/0 \
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submodule."${subname}".path || die)"
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)
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done < <(echo "${data}" | git config -f /dev/fd/0 -l || die)
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}
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# @FUNCTION: _git-r3_is_local_repo
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# @USAGE: <repo-uri>
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# @INTERNAL
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# @DESCRIPTION:
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# Determine whether the given URI specifies a local (on-disk)
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# repository.
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_git-r3_is_local_repo() {
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debug-print-function ${FUNCNAME} "$@"
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local uri=${1}
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[[ ${uri} == file://* || ${uri} == /* ]]
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}
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# @FUNCTION: _git-r3_find_head
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# @USAGE: <head-ref>
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# @INTERNAL
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# @DESCRIPTION:
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# Given a ref to which remote HEAD was fetched, try to find
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# a branch matching the commit. Expects 'git show-ref'
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# or 'git ls-remote' output on stdin.
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_git-r3_find_head() {
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debug-print-function ${FUNCNAME} "$@"
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local head_ref=${1}
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local head_hash=$(git rev-parse --verify "${1}" || die)
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local matching_ref
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# TODO: some transports support peeking at symbolic remote refs
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# find a way to use that rather than guessing
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# (based on guess_remote_head() in git-1.9.0/remote.c)
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local h ref
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while read h ref; do
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# look for matching head
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if [[ ${h} == ${head_hash} ]]; then
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# either take the first matching ref, or master if it is there
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if [[ ! ${matching_ref} || ${ref} == refs/heads/master ]]; then
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matching_ref=${ref}
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fi
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fi
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done
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if [[ ! ${matching_ref} ]]; then
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die "Unable to find a matching branch for remote HEAD (${head_hash})"
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fi
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echo "${matching_ref}"
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}
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# @FUNCTION: git-r3_fetch
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# @USAGE: [<repo-uri> [<remote-ref> [<local-id>]]]
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# @DESCRIPTION:
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# Fetch new commits to the local clone of repository.
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#
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# <repo-uri> specifies the repository URIs to fetch from, as a space-
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# -separated list. The first URI will be used as repository group
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# identifier and therefore must be used consistently. When not
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# specified, defaults to ${EGIT_REPO_URI}.
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#
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# <remote-ref> specifies the remote ref or commit id to fetch.
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# It is preferred to use 'refs/heads/<branch-name>' for branches
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# and 'refs/tags/<tag-name>' for tags. Other options are 'HEAD'
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# for upstream default branch and hexadecimal commit SHA1. Defaults
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# to the first of EGIT_COMMIT, EGIT_BRANCH or literal 'HEAD' that
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# is set to a non-null value.
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#
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# <local-id> specifies the local branch identifier that will be used to
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# locally store the fetch result. It should be unique to multiple
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# fetches within the repository that can be performed at the same time
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# (including parallel merges). It defaults to ${CATEGORY}/${PN}/${SLOT%/*}.
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# This default should be fine unless you are fetching multiple trees
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# from the same repository in the same ebuild.
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#
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# The fetch operation will affect the EGIT_STORE only. It will not touch
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# the working copy, nor export any environment variables.
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# If the repository contains submodules, they will be fetched
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# recursively.
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git-r3_fetch() {
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debug-print-function ${FUNCNAME} "$@"
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[[ ${EVCS_OFFLINE} ]] && return
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local repos
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if [[ ${1} ]]; then
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repos=( ${1} )
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elif [[ $(declare -p EGIT_REPO_URI) == "declare -a"* ]]; then
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repos=( "${EGIT_REPO_URI[@]}" )
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else
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repos=( ${EGIT_REPO_URI} )
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fi
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local branch=${EGIT_BRANCH:+refs/heads/${EGIT_BRANCH}}
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local remote_ref=${2:-${EGIT_COMMIT:-${branch:-HEAD}}}
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local local_id=${3:-${CATEGORY}/${PN}/${SLOT%/*}}
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local local_ref=refs/git-r3/${local_id}/__main__
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[[ ${repos[@]} ]] || die "No URI provided and EGIT_REPO_URI unset"
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local -x GIT_DIR
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_git-r3_set_gitdir "${repos[0]}"
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# prepend the local mirror if applicable
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if [[ ${EGIT_MIRROR_URI} ]]; then
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repos=(
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"${EGIT_MIRROR_URI%/}/${GIT_DIR##*/}"
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"${repos[@]}"
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)
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fi
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# try to fetch from the remote
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local r success
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for r in "${repos[@]}"; do
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einfo "Fetching ${r} ..."
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local fetch_command=( git fetch "${r}" )
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if [[ ${EGIT_CLONE_TYPE} == mirror ]]; then
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fetch_command+=(
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|
--prune
|
|
# mirror the remote branches as local branches
|
|
"+refs/heads/*:refs/heads/*"
|
|
# pull tags explicitly in order to prune them properly
|
|
"+refs/tags/*:refs/tags/*"
|
|
# notes in case something needs them
|
|
"+refs/notes/*:refs/notes/*"
|
|
# and HEAD in case we need the default branch
|
|
# (we keep it in refs/git-r3 since otherwise --prune interferes)
|
|
"+HEAD:refs/git-r3/HEAD"
|
|
)
|
|
else # single or shallow
|
|
local fetch_l fetch_r
|
|
|
|
if [[ ${remote_ref} == HEAD ]]; then
|
|
# HEAD
|
|
fetch_l=HEAD
|
|
elif [[ ${remote_ref} == refs/heads/* ]]; then
|
|
# regular branch
|
|
fetch_l=${remote_ref}
|
|
else
|
|
# tag or commit...
|
|
# let ls-remote figure it out
|
|
local tagref=$(git ls-remote "${r}" "refs/tags/${remote_ref}")
|
|
|
|
# if it was a tag, ls-remote obtained a hash
|
|
if [[ ${tagref} ]]; then
|
|
# tag
|
|
fetch_l=refs/tags/${remote_ref}
|
|
else
|
|
# commit
|
|
# so we need to fetch the branch
|
|
if [[ ${branch} ]]; then
|
|
fetch_l=${branch}
|
|
else
|
|
fetch_l=HEAD
|
|
fi
|
|
|
|
# fetching by commit in shallow mode? can't do.
|
|
if [[ ${EGIT_CLONE_TYPE} == shallow ]]; then
|
|
local EGIT_CLONE_TYPE=single
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
if [[ ${fetch_l} == HEAD ]]; then
|
|
fetch_r=refs/git-r3/HEAD
|
|
else
|
|
fetch_r=${fetch_l}
|
|
fi
|
|
|
|
fetch_command+=(
|
|
"+${fetch_l}:${fetch_r}"
|
|
)
|
|
|
|
if [[ ${EGIT_CLONE_TYPE} == single+tags ]]; then
|
|
fetch_command+=(
|
|
# pull tags explicitly as requested
|
|
"+refs/tags/*:refs/tags/*"
|
|
)
|
|
fi
|
|
fi
|
|
|
|
if [[ ${EGIT_CLONE_TYPE} == shallow ]]; then
|
|
if _git-r3_is_local_repo; then
|
|
# '--depth 1' causes sandbox violations with local repos
|
|
# bug #491260
|
|
local EGIT_CLONE_TYPE=single
|
|
elif [[ ! $(git rev-parse --quiet --verify "${fetch_r}") ]]
|
|
then
|
|
# use '--depth 1' when fetching a new branch
|
|
fetch_command+=( --depth 1 )
|
|
fi
|
|
else # non-shallow mode
|
|
if [[ -f ${GIT_DIR}/shallow ]]; then
|
|
fetch_command+=( --unshallow )
|
|
fi
|
|
fi
|
|
|
|
set -- "${fetch_command[@]}"
|
|
echo "${@}" >&2
|
|
if "${@}"; then
|
|
if [[ ${EGIT_CLONE_TYPE} == mirror ]]; then
|
|
# find remote HEAD and update our HEAD properly
|
|
git symbolic-ref HEAD \
|
|
"$(_git-r3_find_head refs/git-r3/HEAD \
|
|
< <(git show-ref --heads || die))" \
|
|
|| die "Unable to update HEAD"
|
|
else # single or shallow
|
|
if [[ ${fetch_l} == HEAD ]]; then
|
|
# find out what branch we fetched as HEAD
|
|
local head_branch=$(_git-r3_find_head \
|
|
refs/git-r3/HEAD \
|
|
< <(git ls-remote --heads "${r}" || die))
|
|
|
|
# and move it to its regular place
|
|
git update-ref --no-deref "${head_branch}" \
|
|
refs/git-r3/HEAD \
|
|
|| die "Unable to sync HEAD branch ${head_branch}"
|
|
git symbolic-ref HEAD "${head_branch}" \
|
|
|| die "Unable to update HEAD"
|
|
fi
|
|
fi
|
|
|
|
# now let's see what the user wants from us
|
|
local full_remote_ref=$(
|
|
git rev-parse --verify --symbolic-full-name "${remote_ref}"
|
|
)
|
|
|
|
if [[ ${full_remote_ref} ]]; then
|
|
# when we are given a ref, create a symbolic ref
|
|
# so that we preserve the actual argument
|
|
set -- git symbolic-ref "${local_ref}" "${full_remote_ref}"
|
|
else
|
|
# otherwise, we were likely given a commit id
|
|
set -- git update-ref --no-deref "${local_ref}" "${remote_ref}"
|
|
fi
|
|
|
|
echo "${@}" >&2
|
|
if ! "${@}"; then
|
|
die "Referencing ${remote_ref} failed (wrong ref?)."
|
|
fi
|
|
|
|
success=1
|
|
break
|
|
fi
|
|
done
|
|
[[ ${success} ]] || die "Unable to fetch from any of EGIT_REPO_URI"
|
|
|
|
# submodules can reference commits in any branch
|
|
# always use the 'clone' mode to accomodate that, bug #503332
|
|
local EGIT_CLONE_TYPE=mirror
|
|
|
|
# recursively fetch submodules
|
|
if git cat-file -e "${local_ref}":.gitmodules &>/dev/null; then
|
|
local submodules
|
|
_git-r3_set_submodules \
|
|
"$(git cat-file -p "${local_ref}":.gitmodules || die)"
|
|
|
|
while [[ ${submodules[@]} ]]; do
|
|
local subname=${submodules[0]}
|
|
local url=${submodules[1]}
|
|
local path=${submodules[2]}
|
|
local commit=$(git rev-parse "${local_ref}:${path}")
|
|
|
|
if [[ ! ${commit} ]]; then
|
|
die "Unable to get commit id for submodule ${subname}"
|
|
fi
|
|
if [[ ${url} == ./* || ${url} == ../* ]]; then
|
|
local subrepos=( "${repos[@]/%//${url}}" )
|
|
else
|
|
local subrepos=( "${url}" )
|
|
fi
|
|
|
|
git-r3_fetch "${subrepos[*]}" "${commit}" "${local_id}/${subname}"
|
|
|
|
submodules=( "${submodules[@]:3}" ) # shift
|
|
done
|
|
fi
|
|
}
|
|
|
|
# @FUNCTION: git-r3_checkout
|
|
# @USAGE: [<repo-uri> [<checkout-path> [<local-id>]]]
|
|
# @DESCRIPTION:
|
|
# Check the previously fetched tree to the working copy.
|
|
#
|
|
# <repo-uri> specifies the repository URIs, as a space-separated list.
|
|
# The first URI will be used as repository group identifier
|
|
# and therefore must be used consistently with git-r3_fetch.
|
|
# The remaining URIs are not used and therefore may be omitted.
|
|
# When not specified, defaults to ${EGIT_REPO_URI}.
|
|
#
|
|
# <checkout-path> specifies the path to place the checkout. It defaults
|
|
# to ${EGIT_CHECKOUT_DIR} if set, otherwise to ${WORKDIR}/${P}.
|
|
#
|
|
# <local-id> needs to specify the local identifier that was used
|
|
# for respective git-r3_fetch.
|
|
#
|
|
# The checkout operation will write to the working copy, and export
|
|
# the repository state into the environment. If the repository contains
|
|
# submodules, they will be checked out recursively.
|
|
git-r3_checkout() {
|
|
debug-print-function ${FUNCNAME} "$@"
|
|
|
|
local repos
|
|
if [[ ${1} ]]; then
|
|
repos=( ${1} )
|
|
elif [[ $(declare -p EGIT_REPO_URI) == "declare -a"* ]]; then
|
|
repos=( "${EGIT_REPO_URI[@]}" )
|
|
else
|
|
repos=( ${EGIT_REPO_URI} )
|
|
fi
|
|
|
|
local out_dir=${2:-${EGIT_CHECKOUT_DIR:-${WORKDIR}/${P}}}
|
|
local local_id=${3:-${CATEGORY}/${PN}/${SLOT%/*}}
|
|
|
|
local -x GIT_DIR
|
|
_git-r3_set_gitdir "${repos[0]}"
|
|
|
|
einfo "Checking out ${repos[0]} to ${out_dir} ..."
|
|
|
|
if ! git cat-file -e refs/git-r3/"${local_id}"/__main__; then
|
|
if [[ ${EVCS_OFFLINE} ]]; then
|
|
die "No local clone of ${repos[0]}. Unable to work with EVCS_OFFLINE."
|
|
else
|
|
die "Logic error: no local clone of ${repos[0]}. git-r3_fetch not used?"
|
|
fi
|
|
fi
|
|
local remote_ref=$(
|
|
git symbolic-ref --quiet refs/git-r3/"${local_id}"/__main__
|
|
)
|
|
local new_commit_id=$(
|
|
git rev-parse --verify refs/git-r3/"${local_id}"/__main__
|
|
)
|
|
|
|
git-r3_sub_checkout() {
|
|
local orig_repo=${GIT_DIR}
|
|
local -x GIT_DIR=${out_dir}/.git
|
|
local -x GIT_WORK_TREE=${out_dir}
|
|
|
|
mkdir -p "${out_dir}" || die
|
|
|
|
# use git init+fetch instead of clone since the latter doesn't like
|
|
# non-empty directories.
|
|
|
|
git init --quiet || die
|
|
# setup 'alternates' to avoid copying objects
|
|
echo "${orig_repo}/objects" > "${GIT_DIR}"/objects/info/alternates || die
|
|
# now copy the refs
|
|
# [htn]* safely catches heads, tags, notes without complaining
|
|
# on non-existing ones, and omits internal 'git-r3' ref
|
|
cp -R "${orig_repo}"/refs/[htn]* "${GIT_DIR}"/refs/ || die
|
|
|
|
# (no need to copy HEAD, we will set it via checkout)
|
|
|
|
if [[ -f ${orig_repo}/shallow ]]; then
|
|
cp "${orig_repo}"/shallow "${GIT_DIR}"/ || die
|
|
fi
|
|
|
|
set -- git checkout --quiet
|
|
if [[ ${remote_ref} ]]; then
|
|
set -- "${@}" "${remote_ref#refs/heads/}"
|
|
else
|
|
set -- "${@}" "${new_commit_id}"
|
|
fi
|
|
echo "${@}" >&2
|
|
"${@}" || die "git checkout ${remote_ref:-${new_commit_id}} failed"
|
|
}
|
|
git-r3_sub_checkout
|
|
|
|
local old_commit_id=$(
|
|
git rev-parse --quiet --verify refs/git-r3/"${local_id}"/__old__
|
|
)
|
|
if [[ ! ${old_commit_id} ]]; then
|
|
echo "GIT NEW branch -->"
|
|
echo " repository: ${repos[0]}"
|
|
echo " at the commit: ${new_commit_id}"
|
|
else
|
|
# diff against previous revision
|
|
echo "GIT update -->"
|
|
echo " repository: ${repos[0]}"
|
|
# write out message based on the revisions
|
|
if [[ "${old_commit_id}" != "${new_commit_id}" ]]; then
|
|
echo " updating from commit: ${old_commit_id}"
|
|
echo " to commit: ${new_commit_id}"
|
|
|
|
git --no-pager diff --stat \
|
|
${old_commit_id}..${new_commit_id}
|
|
else
|
|
echo " at the commit: ${new_commit_id}"
|
|
fi
|
|
fi
|
|
git update-ref --no-deref refs/git-r3/"${local_id}"/{__old__,__main__} || die
|
|
|
|
# recursively checkout submodules
|
|
if [[ -f ${out_dir}/.gitmodules ]]; then
|
|
local submodules
|
|
_git-r3_set_submodules \
|
|
"$(<"${out_dir}"/.gitmodules)"
|
|
|
|
while [[ ${submodules[@]} ]]; do
|
|
local subname=${submodules[0]}
|
|
local url=${submodules[1]}
|
|
local path=${submodules[2]}
|
|
|
|
if [[ ${url} == ./* || ${url} == ../* ]]; then
|
|
url=${repos[0]%%/}/${url}
|
|
fi
|
|
|
|
git-r3_checkout "${url}" "${out_dir}/${path}" \
|
|
"${local_id}/${subname}"
|
|
|
|
submodules=( "${submodules[@]:3}" ) # shift
|
|
done
|
|
fi
|
|
|
|
# keep this *after* submodules
|
|
export EGIT_DIR=${GIT_DIR}
|
|
export EGIT_VERSION=${new_commit_id}
|
|
}
|
|
|
|
# @FUNCTION: git-r3_peek_remote_ref
|
|
# @USAGE: [<repo-uri> [<remote-ref>]]
|
|
# @DESCRIPTION:
|
|
# Peek the reference in the remote repository and print the matching
|
|
# (newest) commit SHA1.
|
|
#
|
|
# <repo-uri> specifies the repository URIs to fetch from, as a space-
|
|
# -separated list. When not specified, defaults to ${EGIT_REPO_URI}.
|
|
#
|
|
# <remote-ref> specifies the remote ref to peek. It is preferred to use
|
|
# 'refs/heads/<branch-name>' for branches and 'refs/tags/<tag-name>'
|
|
# for tags. Alternatively, 'HEAD' may be used for upstream default
|
|
# branch. Defaults to the first of EGIT_COMMIT, EGIT_BRANCH or literal
|
|
# 'HEAD' that is set to a non-null value.
|
|
#
|
|
# The operation will be done purely on the remote, without using local
|
|
# storage. If commit SHA1 is provided as <remote-ref>, the function will
|
|
# fail due to limitations of git protocol.
|
|
#
|
|
# On success, the function returns 0 and writes hexadecimal commit SHA1
|
|
# to stdout. On failure, the function returns 1.
|
|
git-r3_peek_remote_ref() {
|
|
debug-print-function ${FUNCNAME} "$@"
|
|
|
|
local repos
|
|
if [[ ${1} ]]; then
|
|
repos=( ${1} )
|
|
elif [[ $(declare -p EGIT_REPO_URI) == "declare -a"* ]]; then
|
|
repos=( "${EGIT_REPO_URI[@]}" )
|
|
else
|
|
repos=( ${EGIT_REPO_URI} )
|
|
fi
|
|
|
|
local branch=${EGIT_BRANCH:+refs/heads/${EGIT_BRANCH}}
|
|
local remote_ref=${2:-${EGIT_COMMIT:-${branch:-HEAD}}}
|
|
|
|
[[ ${repos[@]} ]] || die "No URI provided and EGIT_REPO_URI unset"
|
|
|
|
local r success
|
|
for r in "${repos[@]}"; do
|
|
einfo "Peeking ${remote_ref} on ${r} ..." >&2
|
|
|
|
local is_branch lookup_ref
|
|
if [[ ${remote_ref} == refs/heads/* || ${remote_ref} == HEAD ]]
|
|
then
|
|
is_branch=1
|
|
lookup_ref=${remote_ref}
|
|
else
|
|
# ls-remote by commit is going to fail anyway,
|
|
# so we may as well pass refs/tags/ABCDEF...
|
|
lookup_ref=refs/tags/${remote_ref}
|
|
fi
|
|
|
|
# split on whitespace
|
|
local ref=(
|
|
$(git ls-remote "${r}" "${lookup_ref}")
|
|
)
|
|
|
|
if [[ ${ref[0]} ]]; then
|
|
echo "${ref[0]}"
|
|
return 0
|
|
fi
|
|
done
|
|
|
|
return 1
|
|
}
|
|
|
|
git-r3_src_fetch() {
|
|
debug-print-function ${FUNCNAME} "$@"
|
|
|
|
if [[ ! ${EGIT3_STORE_DIR} && ${EGIT_STORE_DIR} ]]; then
|
|
ewarn "You have set EGIT_STORE_DIR but not EGIT3_STORE_DIR. Please consider"
|
|
ewarn "setting EGIT3_STORE_DIR for git-r3.eclass. It is recommended to use"
|
|
ewarn "a different directory than EGIT_STORE_DIR to ease removing old clones"
|
|
ewarn "when git-2 eclass becomes deprecated."
|
|
fi
|
|
|
|
_git-r3_env_setup
|
|
git-r3_fetch
|
|
}
|
|
|
|
git-r3_src_unpack() {
|
|
debug-print-function ${FUNCNAME} "$@"
|
|
|
|
_git-r3_env_setup
|
|
git-r3_src_fetch
|
|
git-r3_checkout
|
|
}
|
|
|
|
# https://bugs.gentoo.org/show_bug.cgi?id=482666
|
|
git-r3_pkg_outofdate() {
|
|
debug-print-function ${FUNCNAME} "$@"
|
|
|
|
local new_commit_id=$(git-r3_peek_remote_ref)
|
|
ewarn "old: ${EGIT_VERSION}"
|
|
ewarn "new: ${new_commit_id}"
|
|
[[ ${new_commit_id} && ${old_commit_id} ]] || return 2
|
|
|
|
[[ ${EGIT_VERSION} != ${new_commit_id} ]]
|
|
}
|
|
|
|
_GIT_R3=1
|
|
fi
|