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600 lines
17 KiB
600 lines
17 KiB
# Copyright 1999-2012 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-2.eclass,v 1.29 2012/04/03 10:32:09 pacho Exp $
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# @ECLASS: git-2.eclass
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# @MAINTAINER:
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# Michał Górny <mgorny@gentoo.org>
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# Donnie Berkholz <dberkholz@gentoo.org>
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# @BLURB: Eclass for fetching and unpacking git repositories.
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# @DESCRIPTION:
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# Eclass for easing maitenance of live ebuilds using git as remote repository.
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# Eclass support working with git submodules and branching.
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# This eclass support all EAPIs
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EXPORT_FUNCTIONS src_unpack
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DEPEND="dev-vcs/git"
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# @ECLASS-VARIABLE: EGIT_SOURCEDIR
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# @DESCRIPTION:
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# This variable specifies destination where the cloned
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# data are copied to.
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#
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# EGIT_SOURCEDIR="${S}"
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# @ECLASS-VARIABLE: EGIT_STORE_DIR
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# @DESCRIPTION:
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# Storage directory for git sources.
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#
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# EGIT_STORE_DIR="${DISTDIR}/egit-src"
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# @ECLASS-VARIABLE: EGIT_HAS_SUBMODULES
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# @DEFAULT_UNSET
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# @DESCRIPTION:
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# If non-empty this variable enables support for git submodules in our
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# checkout. Also this makes the checkout to be non-bare for now.
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# @ECLASS-VARIABLE: EGIT_OPTIONS
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# @DEFAULT_UNSET
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# @DESCRIPTION:
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# Variable specifying additional options for fetch command.
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# @ECLASS-VARIABLE: EGIT_MASTER
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# @DESCRIPTION:
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# Variable for specifying master branch.
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# Usefull when upstream don't have master branch or name it differently.
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#
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# EGIT_MASTER="master"
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# @ECLASS-VARIABLE: EGIT_PROJECT
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# @DESCRIPTION:
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# Variable specifying name for the folder where we check out the git
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# repository. Value of this variable should be unique in the
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# EGIT_STORE_DIR as otherwise you would override another repository.
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#
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# EGIT_PROJECT="${EGIT_REPO_URI##*/}"
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# @ECLASS-VARIABLE: EGIT_DIR
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# @DESCRIPTION:
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# Directory where we want to store the git data.
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# This variable should not be overriden.
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#
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# EGIT_DIR="${EGIT_STORE_DIR}/${EGIT_PROJECT}"
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# @ECLASS-VARIABLE: EGIT_REPO_URI
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# @REQUIRED
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# @DEFAULT_UNSET
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# @DESCRIPTION:
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# URI for the repository
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# e.g. http://foo, git://bar
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#
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# Support multiple values:
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# EGIT_REPO_URI="git://a/b.git http://c/d.git"
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# @ECLASS-VARIABLE: EVCS_OFFLINE
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# @DEFAULT_UNSET
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# @DESCRIPTION:
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# If non-empty this variable prevents performance of any online
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# operations.
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# @ECLASS-VARIABLE: EGIT_BRANCH
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# @DESCRIPTION:
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# Variable containing branch name we want to check out.
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# It can be overriden via env using packagename_LIVE_BRANCH
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# variable.
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#
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# EGIT_BRANCH="${EGIT_MASTER}"
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# @ECLASS-VARIABLE: EGIT_COMMIT
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# @DESCRIPTION:
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# Variable containing commit hash/tag we want to check out.
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# It can be overriden via env using packagename_LIVE_COMMIT
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# variable.
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#
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# EGIT_COMMIT="${EGIT_BRANCH}"
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# @ECLASS-VARIABLE: EGIT_REPACK
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# @DEFAULT_UNSET
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# @DESCRIPTION:
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# If non-empty this variable specifies that repository will be repacked to
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# save space. However this can take a REALLY LONG time with VERY big
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# repositories.
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# @ECLASS-VARIABLE: EGIT_PRUNE
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# @DEFAULT_UNSET
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# @DESCRIPTION:
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# If non-empty this variable enables pruning all loose objects on each fetch.
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# This is useful if upstream rewinds and rebases branches often.
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# @ECLASS-VARIABLE: EGIT_NONBARE
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# @DEFAULT_UNSET
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# @DESCRIPTION:
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# If non-empty this variable specifies that all checkouts will be done using
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# non bare repositories. This is useful if you can't operate with bare
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# checkouts for some reason.
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# @ECLASS-VARIABLE: EGIT_NOUNPACK
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# @DEFAULT_UNSET
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# @DESCRIPTION:
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# If non-empty this variable bans unpacking of ${A} content into the srcdir.
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# Default behaviour is to unpack ${A} content.
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# @FUNCTION: git-2_init_variables
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# @INTERNAL
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# @DESCRIPTION:
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# Internal function initializing all git variables.
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# We define it in function scope so user can define
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# all the variables before and after inherit.
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git-2_init_variables() {
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debug-print-function ${FUNCNAME} "$@"
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local esc_pn liverepo livebranch livecommit
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esc_pn=${PN//[-+]/_}
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: ${EGIT_SOURCEDIR="${S}"}
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: ${EGIT_STORE_DIR:="${PORTAGE_ACTUAL_DISTDIR-${DISTDIR}}/egit-src"}
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: ${EGIT_HAS_SUBMODULES:=}
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: ${EGIT_OPTIONS:=}
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: ${EGIT_MASTER:=master}
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liverepo=${esc_pn}_LIVE_REPO
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EGIT_REPO_URI=${!liverepo:-${EGIT_REPO_URI}}
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[[ ${EGIT_REPO_URI} ]] || die "EGIT_REPO_URI must have some value"
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: ${EVCS_OFFLINE:=}
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livebranch=${esc_pn}_LIVE_BRANCH
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[[ ${!livebranch} ]] && ewarn "QA: using \"${esc_pn}_LIVE_BRANCH\" variable, you won't get any support"
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EGIT_BRANCH=${!livebranch:-${EGIT_BRANCH:-${EGIT_MASTER}}}
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livecommit=${esc_pn}_LIVE_COMMIT
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[[ ${!livecommit} ]] && ewarn "QA: using \"${esc_pn}_LIVE_COMMIT\" variable, you won't get any support"
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EGIT_COMMIT=${!livecommit:-${EGIT_COMMIT:-${EGIT_BRANCH}}}
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: ${EGIT_REPACK:=}
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: ${EGIT_PRUNE:=}
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}
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# @FUNCTION: git-2_submodules
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# @INTERNAL
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# @DESCRIPTION:
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# Internal function wrapping the submodule initialisation and update.
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git-2_submodules() {
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debug-print-function ${FUNCNAME} "$@"
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if [[ ${EGIT_HAS_SUBMODULES} ]]; then
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if [[ ${EVCS_OFFLINE} ]]; then
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# for submodules operations we need to be online
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debug-print "${FUNCNAME}: not updating submodules in offline mode"
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return 1
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fi
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debug-print "${FUNCNAME}: working in \"${1}\""
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pushd "${EGIT_DIR}" > /dev/null
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debug-print "${FUNCNAME}: git submodule init"
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git submodule init || die
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debug-print "${FUNCNAME}: git submodule sync"
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git submodule sync || die
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debug-print "${FUNCNAME}: git submodule update"
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git submodule update || die
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popd > /dev/null
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fi
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}
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# @FUNCTION: git-2_branch
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# @INTERNAL
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# @DESCRIPTION:
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# Internal function that changes branch for the repo based on EGIT_COMMIT and
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# EGIT_BRANCH variables.
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git-2_branch() {
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debug-print-function ${FUNCNAME} "$@"
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local branchname src
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debug-print "${FUNCNAME}: working in \"${EGIT_SOURCEDIR}\""
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pushd "${EGIT_SOURCEDIR}" > /dev/null
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local branchname=branch-${EGIT_BRANCH} src=origin/${EGIT_BRANCH}
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if [[ ${EGIT_COMMIT} != ${EGIT_BRANCH} ]]; then
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branchname=tree-${EGIT_COMMIT}
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src=${EGIT_COMMIT}
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fi
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debug-print "${FUNCNAME}: git checkout -b ${branchname} ${src}"
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git checkout -b ${branchname} ${src} \
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|| die "${FUNCNAME}: changing the branch failed"
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popd > /dev/null
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}
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# @FUNCTION: git-2_gc
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# @INTERNAL
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# @DESCRIPTION:
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# Internal function running garbage collector on checked out tree.
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git-2_gc() {
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debug-print-function ${FUNCNAME} "$@"
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local args
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if [[ ${EGIT_REPACK} || ${EGIT_PRUNE} ]]; then
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pushd "${EGIT_DIR}" > /dev/null
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ebegin "Garbage collecting the repository"
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[[ ${EGIT_PRUNE} ]] && args='--prune'
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debug-print "${FUNCNAME}: git gc ${args}"
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git gc ${args}
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eend $?
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popd > /dev/null
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fi
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}
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# @FUNCTION: git-2_prepare_storedir
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# @INTERNAL
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# @DESCRIPTION:
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# Internal function preparing directory where we are going to store SCM
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# repository.
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git-2_prepare_storedir() {
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debug-print-function ${FUNCNAME} "$@"
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local clone_dir
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# initial clone, we have to create master git storage directory and play
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# nicely with sandbox
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if [[ ! -d ${EGIT_STORE_DIR} ]]; then
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debug-print "${FUNCNAME}: Creating git main storage directory"
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addwrite /
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mkdir -m 775 -p "${EGIT_STORE_DIR}" \
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|| die "${FUNCNAME}: can't mkdir \"${EGIT_STORE_DIR}\""
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fi
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# allow writing into EGIT_STORE_DIR
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addwrite "${EGIT_STORE_DIR}"
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# calculate git.eclass store dir for data
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# We will try to clone the old repository,
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# and we will remove it if we don't need it anymore.
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EGIT_OLD_CLONE=
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if [[ ${EGIT_STORE_DIR} == */egit-src ]]; then
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local old_store_dir=${EGIT_STORE_DIR/%egit-src/git-src}
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local old_location=${old_store_dir}/${EGIT_PROJECT:-${PN}}
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if [[ -d ${old_location} ]]; then
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EGIT_OLD_CLONE=${old_location}
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# required to remove the old clone
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addwrite "${old_store_dir}"
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fi
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fi
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# calculate the proper store dir for data
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# If user didn't specify the EGIT_DIR, we check if he did specify
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# the EGIT_PROJECT or get the folder name from EGIT_REPO_URI.
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EGIT_REPO_URI=${EGIT_REPO_URI%/}
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if [[ ! ${EGIT_DIR} ]]; then
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if [[ ${EGIT_PROJECT} ]]; then
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clone_dir=${EGIT_PROJECT}
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else
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local strippeduri=${EGIT_REPO_URI%/.git}
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clone_dir=${strippeduri##*/}
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fi
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EGIT_DIR=${EGIT_STORE_DIR}/${clone_dir}
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if [[ ${EGIT_OLD_CLONE} && ! -d ${EGIT_DIR} ]]; then
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elog "${FUNCNAME}: ${CATEGORY}/${PF} will be cloned from old location."
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elog "It will be necessary to rebuild the package to fetch updates."
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EGIT_REPO_URI="${EGIT_OLD_CLONE} ${EGIT_REPO_URI}"
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fi
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fi
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export EGIT_DIR=${EGIT_DIR}
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debug-print "${FUNCNAME}: Storing the repo into \"${EGIT_DIR}\"."
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}
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# @FUNCTION: git-2_move_source
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# @INTERNAL
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# @DESCRIPTION:
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# Internal function moving sources from the EGIT_DIR to EGIT_SOURCEDIR dir.
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git-2_move_source() {
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debug-print-function ${FUNCNAME} "$@"
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debug-print "${FUNCNAME}: ${MOVE_COMMAND} \"${EGIT_DIR}\" \"${EGIT_SOURCEDIR}\""
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pushd "${EGIT_DIR}" > /dev/null
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mkdir -p "${EGIT_SOURCEDIR}" \
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|| die "${FUNCNAME}: failed to create ${EGIT_SOURCEDIR}"
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${MOVE_COMMAND} "${EGIT_SOURCEDIR}" \
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|| die "${FUNCNAME}: sync to \"${EGIT_SOURCEDIR}\" failed"
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popd > /dev/null
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}
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# @FUNCTION: git-2_initial_clone
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# @INTERNAL
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# @DESCRIPTION:
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# Internal function running initial clone on specified repo_uri.
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git-2_initial_clone() {
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debug-print-function ${FUNCNAME} "$@"
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local repo_uri
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EGIT_REPO_URI_SELECTED=""
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for repo_uri in ${EGIT_REPO_URI}; do
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debug-print "${FUNCNAME}: git clone ${EGIT_LOCAL_OPTIONS} \"${repo_uri}\" \"${EGIT_DIR}\""
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if git clone ${EGIT_LOCAL_OPTIONS} "${repo_uri}" "${EGIT_DIR}"; then
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# global variable containing the repo_name we will be using
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debug-print "${FUNCNAME}: EGIT_REPO_URI_SELECTED=\"${repo_uri}\""
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EGIT_REPO_URI_SELECTED="${repo_uri}"
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break
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fi
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done
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[[ ${EGIT_REPO_URI_SELECTED} ]] \
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|| die "${FUNCNAME}: can't fetch from ${EGIT_REPO_URI}"
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}
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# @FUNCTION: git-2_update_repo
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# @INTERNAL
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# @DESCRIPTION:
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# Internal function running update command on specified repo_uri.
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git-2_update_repo() {
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debug-print-function ${FUNCNAME} "$@"
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local repo_uri
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if [[ ${EGIT_LOCAL_NONBARE} ]]; then
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# checkout master branch and drop all other local branches
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git checkout ${EGIT_MASTER} || die "${FUNCNAME}: can't checkout master branch ${EGIT_MASTER}"
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for x in $(git branch | grep -v "* ${EGIT_MASTER}" | tr '\n' ' '); do
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debug-print "${FUNCNAME}: git branch -D ${x}"
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git branch -D ${x} > /dev/null
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done
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fi
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EGIT_REPO_URI_SELECTED=""
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for repo_uri in ${EGIT_REPO_URI}; do
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# git urls might change, so reset it
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git config remote.origin.url "${repo_uri}"
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debug-print "${EGIT_UPDATE_CMD}"
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if ${EGIT_UPDATE_CMD} > /dev/null; then
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# global variable containing the repo_name we will be using
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debug-print "${FUNCNAME}: EGIT_REPO_URI_SELECTED=\"${repo_uri}\""
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EGIT_REPO_URI_SELECTED="${repo_uri}"
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break
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fi
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done
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[[ ${EGIT_REPO_URI_SELECTED} ]] \
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|| die "${FUNCNAME}: can't update from ${EGIT_REPO_URI}"
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}
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# @FUNCTION: git-2_fetch
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# @INTERNAL
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# @DESCRIPTION:
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# Internal function fetching repository from EGIT_REPO_URI and storing it in
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# specified EGIT_STORE_DIR.
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git-2_fetch() {
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debug-print-function ${FUNCNAME} "$@"
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local oldsha cursha repo_type
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[[ ${EGIT_LOCAL_NONBARE} ]] && repo_type="non-bare repository" || repo_type="bare repository"
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if [[ ! -d ${EGIT_DIR} ]]; then
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git-2_initial_clone
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pushd "${EGIT_DIR}" > /dev/null
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cursha=$(git rev-parse ${UPSTREAM_BRANCH})
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echo "GIT NEW clone -->"
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echo " repository: ${EGIT_REPO_URI_SELECTED}"
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echo " at the commit: ${cursha}"
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popd > /dev/null
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elif [[ ${EVCS_OFFLINE} ]]; then
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pushd "${EGIT_DIR}" > /dev/null
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cursha=$(git rev-parse ${UPSTREAM_BRANCH})
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echo "GIT offline update -->"
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echo " repository: $(git config remote.origin.url)"
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echo " at the commit: ${cursha}"
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popd > /dev/null
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else
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pushd "${EGIT_DIR}" > /dev/null
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oldsha=$(git rev-parse ${UPSTREAM_BRANCH})
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git-2_update_repo
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cursha=$(git rev-parse ${UPSTREAM_BRANCH})
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# fetch updates
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echo "GIT update -->"
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echo " repository: ${EGIT_REPO_URI_SELECTED}"
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# write out message based on the revisions
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if [[ "${oldsha}" != "${cursha}" ]]; then
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echo " updating from commit: ${oldsha}"
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echo " to commit: ${cursha}"
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else
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echo " at the commit: ${cursha}"
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fi
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# print nice statistic of what was changed
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git --no-pager diff --stat ${oldsha}..${UPSTREAM_BRANCH}
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popd > /dev/null
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fi
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# export the version the repository is at
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export EGIT_VERSION="${cursha}"
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# log the repo state
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[[ ${EGIT_COMMIT} != ${EGIT_BRANCH} ]] \
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&& echo " commit: ${EGIT_COMMIT}"
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echo " branch: ${EGIT_BRANCH}"
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echo " storage directory: \"${EGIT_DIR}\""
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echo " checkout type: ${repo_type}"
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# Cleanup after git.eclass
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if [[ ${EGIT_OLD_CLONE} ]]; then
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einfo "${FUNCNAME}: removing old clone in ${EGIT_OLD_CLONE}."
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rm -rf "${EGIT_OLD_CLONE}"
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fi
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}
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# @FUNCTION: git_bootstrap
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# @INTERNAL
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# @DESCRIPTION:
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# Internal function that runs bootstrap command on unpacked source.
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git-2_bootstrap() {
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debug-print-function ${FUNCNAME} "$@"
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# @ECLASS-VARIABLE: EGIT_BOOTSTRAP
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# @DESCRIPTION:
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# Command to be executed after checkout and clone of the specified
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# repository.
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# enviroment the package will fail if there is no update, thus in
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# combination with --keep-going it would lead in not-updating
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# pakcages that are up-to-date.
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if [[ ${EGIT_BOOTSTRAP} ]]; then
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pushd "${EGIT_SOURCEDIR}" > /dev/null
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einfo "Starting bootstrap"
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if [[ -f ${EGIT_BOOTSTRAP} ]]; then
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# we have file in the repo which we should execute
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debug-print "${FUNCNAME}: bootstraping with file \"${EGIT_BOOTSTRAP}\""
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if [[ -x ${EGIT_BOOTSTRAP} ]]; then
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eval "./${EGIT_BOOTSTRAP}" \
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|| die "${FUNCNAME}: bootstrap script failed"
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else
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eerror "\"${EGIT_BOOTSTRAP}\" is not executable."
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eerror "Report upstream, or bug ebuild maintainer to remove bootstrap command."
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die "\"${EGIT_BOOTSTRAP}\" is not executable"
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fi
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else
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# we execute some system command
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debug-print "${FUNCNAME}: bootstraping with commands \"${EGIT_BOOTSTRAP}\""
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eval "${EGIT_BOOTSTRAP}" \
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|| die "${FUNCNAME}: bootstrap commands failed"
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fi
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einfo "Bootstrap finished"
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popd > /dev/null
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fi
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}
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# @FUNCTION: git-2_migrate_repository
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# @INTERNAL
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# @DESCRIPTION:
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# Internal function migrating between bare and normal checkout repository.
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# This is based on usage of EGIT_SUBMODULES, at least until they
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# start to work with bare checkouts sanely.
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# This function also set some global variables that differ between
|
|
# bare and non-bare checkout.
|
|
git-2_migrate_repository() {
|
|
debug-print-function ${FUNCNAME} "$@"
|
|
|
|
local bare returnstate
|
|
|
|
# first find out if we have submodules
|
|
# or user explicitly wants us to use non-bare clones
|
|
if ! [[ ${EGIT_HAS_SUBMODULES} || ${EGIT_NONBARE} ]]; then
|
|
bare=1
|
|
fi
|
|
|
|
# test if we already have some repo and if so find out if we have
|
|
# to migrate the data
|
|
if [[ -d ${EGIT_DIR} ]]; then
|
|
if [[ ${bare} && -d ${EGIT_DIR}/.git ]]; then
|
|
debug-print "${FUNCNAME}: converting \"${EGIT_DIR}\" to bare copy"
|
|
|
|
ebegin "Converting \"${EGIT_DIR}\" from non-bare to bare copy"
|
|
mv "${EGIT_DIR}/.git" "${EGIT_DIR}.bare"
|
|
export GIT_DIR="${EGIT_DIR}.bare"
|
|
git config core.bare true > /dev/null
|
|
returnstate=$?
|
|
unset GIT_DIR
|
|
rm -rf "${EGIT_DIR}"
|
|
mv "${EGIT_DIR}.bare" "${EGIT_DIR}"
|
|
eend ${returnstate}
|
|
elif [[ ! ${bare} && ! -d ${EGIT_DIR}/.git ]]; then
|
|
debug-print "${FUNCNAME}: converting \"${EGIT_DIR}\" to non-bare copy"
|
|
|
|
ebegin "Converting \"${EGIT_DIR}\" from bare to non-bare copy"
|
|
git clone -l "${EGIT_DIR}" "${EGIT_DIR}.nonbare" > /dev/null
|
|
returnstate=$?
|
|
rm -rf "${EGIT_DIR}"
|
|
mv "${EGIT_DIR}.nonbare" "${EGIT_DIR}"
|
|
eend ${returnstate}
|
|
fi
|
|
fi
|
|
if [[ ${returnstate} -ne 0 ]]; then
|
|
debug-print "${FUNCNAME}: converting \"${EGIT_DIR}\" failed, removing to start from scratch"
|
|
|
|
# migration failed, remove the EGIT_DIR to play it safe
|
|
einfo "Migration failed, removing \"${EGIT_DIR}\" to start from scratch."
|
|
rm -rf "${EGIT_DIR}"
|
|
fi
|
|
|
|
# set various options to work with both targets
|
|
if [[ ${bare} ]]; then
|
|
debug-print "${FUNCNAME}: working in bare repository for \"${EGIT_DIR}\""
|
|
EGIT_LOCAL_OPTIONS+="${EGIT_OPTIONS} --bare"
|
|
MOVE_COMMAND="git clone -l -s -n ${EGIT_DIR// /\\ }"
|
|
EGIT_UPDATE_CMD="git fetch -t -f -u origin ${EGIT_BRANCH}:${EGIT_BRANCH}"
|
|
UPSTREAM_BRANCH="${EGIT_BRANCH}"
|
|
EGIT_LOCAL_NONBARE=
|
|
else
|
|
debug-print "${FUNCNAME}: working in bare repository for non-bare \"${EGIT_DIR}\""
|
|
MOVE_COMMAND="cp -pPR ."
|
|
EGIT_LOCAL_OPTIONS="${EGIT_OPTIONS}"
|
|
EGIT_UPDATE_CMD="git pull -f -u ${EGIT_OPTIONS}"
|
|
UPSTREAM_BRANCH="origin/${EGIT_BRANCH}"
|
|
EGIT_LOCAL_NONBARE="true"
|
|
fi
|
|
}
|
|
|
|
# @FUNCTION: git-2_cleanup
|
|
# @INTERNAL
|
|
# @DESCRIPTION:
|
|
# Internal function cleaning up all the global variables
|
|
# that are not required after the unpack has been done.
|
|
git-2_cleanup() {
|
|
debug-print-function ${FUNCNAME} "$@"
|
|
|
|
# Here we can unset only variables that are GLOBAL
|
|
# defined by the eclass, BUT NOT subject to change
|
|
# by user (like EGIT_PROJECT).
|
|
# If ebuild writer polutes his environment it is
|
|
# his problem only.
|
|
unset EGIT_DIR
|
|
unset MOVE_COMMAND
|
|
unset EGIT_LOCAL_OPTIONS
|
|
unset EGIT_UPDATE_CMD
|
|
unset UPSTREAM_BRANCH
|
|
unset EGIT_LOCAL_NONBARE
|
|
}
|
|
|
|
# @FUNCTION: git-2_src_unpack
|
|
# @DESCRIPTION:
|
|
# Default git src_unpack function.
|
|
git-2_src_unpack() {
|
|
debug-print-function ${FUNCNAME} "$@"
|
|
|
|
git-2_init_variables
|
|
git-2_prepare_storedir
|
|
git-2_migrate_repository
|
|
git-2_fetch "$@"
|
|
git-2_gc
|
|
git-2_submodules
|
|
git-2_move_source
|
|
git-2_branch
|
|
git-2_bootstrap
|
|
git-2_cleanup
|
|
echo ">>> Unpacked to ${EGIT_SOURCEDIR}"
|
|
|
|
# Users can specify some SRC_URI and we should
|
|
# unpack the files too.
|
|
if [[ ! ${EGIT_NOUNPACK} ]]; then
|
|
if has ${EAPI:-0} 0 1; then
|
|
[[ ${A} ]] && unpack ${A}
|
|
else
|
|
default_src_unpack
|
|
fi
|
|
fi
|
|
}
|