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# Copyright 1999-2009 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.eclass,v 1.46 2010/07/26 02:51:33 reavertm Exp $ |
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|
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# @ECLASS: git.eclass |
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# @MAINTAINER: |
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# Tomas Chvatal <scarabeus@gentoo.org> |
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# Donnie Berkholz <dberkholz@gentoo.org> |
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# @BLURB: This eclass provides functions for fetch and unpack git repositories |
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# @DESCRIPTION: |
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# The eclass is based on subversion eclass. |
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# If you use this eclass, the ${S} is ${WORKDIR}/${P}. |
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# It is necessary to define the EGIT_REPO_URI variable at least. |
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# @THANKS TO: |
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# Fernando J. Pereda <ferdy@gentoo.org> |
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|
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inherit eutils |
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|
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EGIT="git.eclass" |
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|
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# We DEPEND on at least a bit recent git version |
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DEPEND=">=dev-vcs/git-1.6" |
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|
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EXPORTED_FUNCTIONS="src_unpack" |
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case "${EAPI:-0}" in |
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3|2) EXPORTED_FUNCTIONS="${EXPORTED_FUNCTIONS} src_prepare" ;; |
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1|0) ;; |
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:) DEPEND="EAPI-UNSUPPORTED" ;; |
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esac |
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EXPORT_FUNCTIONS ${EXPORTED_FUNCTIONS} |
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|
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# define some nice defaults but only if nothing is set already |
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: ${HOMEPAGE:=http://git-scm.com/} |
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|
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# @ECLASS-VARIABLE: EGIT_QUIET |
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# @DESCRIPTION: |
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# Set to non-empty value to supress some eclass messages. |
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: ${EGIT_QUIET:=${ESCM_QUIET}} |
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|
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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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# Can be redefined. |
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: ${EGIT_STORE_DIR:="${PORTAGE_ACTUAL_DISTDIR-${DISTDIR}}/git-src"} |
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|
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# @ECLASS-VARIABLE: EGIT_HAS_SUBMODULES |
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# @DESCRIPTION: |
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# Set this to non-empty value to enable submodule support (slower). |
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: ${EGIT_HAS_SUBMODULES:=} |
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|
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# @ECLASS-VARIABLE: EGIT_FETCH_CMD |
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# @DESCRIPTION: |
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# Command for cloning the repository. |
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: ${EGIT_FETCH_CMD:="git clone"} |
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|
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# @ECLASS-VARIABLE: EGIT_UPDATE_CMD |
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# @DESCRIPTION: |
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# Git fetch command. |
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if [[ -n ${EGIT_HAS_SUBMODULES} ]]; then |
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EGIT_UPDATE_CMD="git pull -f -u" |
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else |
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EGIT_UPDATE_CMD="git fetch -f -u" |
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fi |
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|
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# @ECLASS-VARIABLE: EGIT_DIFFSTAT_CMD |
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# @DESCRIPTION: |
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# Git command for diffstat. |
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EGIT_DIFFSTAT_CMD="git --no-pager diff --stat" |
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|
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# @ECLASS-VARIABLE: EGIT_OPTIONS |
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# @DESCRIPTION: |
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# This variable value is passed to clone and fetch. |
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: ${EGIT_OPTIONS:=} |
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|
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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. |
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: ${EGIT_MASTER:=master} |
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|
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# @ECLASS-VARIABLE: EGIT_REPO_URI |
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# @DESCRIPTION: |
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# URI for the repository |
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# e.g. http://foo, git://bar |
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# Supported protocols: |
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# http:// |
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# https:// |
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# git:// |
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# git+ssh:// |
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# rsync:// |
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# ssh:// |
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eval X="\$${PN//[-+]/_}_LIVE_REPO" |
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if [[ ${X} = "" ]]; then |
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: ${EGIT_REPO_URI:=} |
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else |
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EGIT_REPO_URI="${X}" |
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fi |
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# @ECLASS-VARIABLE: EGIT_PROJECT |
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# @DESCRIPTION: |
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# Project name of your ebuild. |
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# Git eclass will check out the git repository like: |
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# ${EGIT_STORE_DIR}/${EGIT_PROJECT}/${EGIT_REPO_URI##*/} |
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# so if you define EGIT_REPO_URI as http://git.collab.net/repo/git or |
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# http://git.collab.net/repo/git. and PN is subversion-git. |
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# it will check out like: |
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# ${EGIT_STORE_DIR}/subversion |
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: ${EGIT_PROJECT:=${PN/-git}} |
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|
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# @ECLASS-VARIABLE: EGIT_BOOTSTRAP |
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# @DESCRIPTION: |
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# bootstrap script or command like autogen.sh or etc... |
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: ${EGIT_BOOTSTRAP:=} |
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|
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# @ECLASS-VARIABLE: EGIT_OFFLINE |
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# @DESCRIPTION: |
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# Set this variable to a non-empty value to disable the automatic updating of |
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# an GIT source tree. This is intended to be set outside the git source |
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# tree by users. |
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: ${EGIT_OFFLINE:=${ESCM_OFFLINE}} |
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|
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# @ECLASS-VARIABLE: EGIT_PATCHES |
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# @DESCRIPTION: |
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# Similar to PATCHES array from base.eclass |
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# Only difference is that this patches are applied before bootstrap. |
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# Please take note that this variable should be bash array. |
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|
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# @ECLASS-VARIABLE: EGIT_BRANCH |
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# @DESCRIPTION: |
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# git eclass can fetch any branch in git_fetch(). |
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eval X="\$${PN//[-+]/_}_LIVE_BRANCH" |
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if [[ "${X}" = "" ]]; then |
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: ${EGIT_BRANCH:=master} |
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else |
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EGIT_BRANCH="${X}" |
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fi |
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|
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# @ECLASS-VARIABLE: EGIT_COMMIT |
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# @DESCRIPTION: |
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# git eclass can checkout any commit. |
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eval X="\$${PN//[-+]/_}_LIVE_COMMIT" |
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if [[ "${X}" = "" ]]; then |
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: ${EGIT_COMMIT:=${EGIT_BRANCH}} |
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else |
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EGIT_COMMIT="${X}" |
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fi |
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|
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# @ECLASS-VARIABLE: EGIT_REPACK |
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# @DESCRIPTION: |
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# Set to non-empty value to repack objects to save disk space. However this can |
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# take a long time with VERY big repositories. |
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: ${EGIT_REPACK:=} |
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|
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# @ECLASS-VARIABLE: EGIT_PRUNE |
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# @DESCRIPTION: |
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# Set to non-empty value to prune loose objects on each fetch. This is useful |
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# if upstream rewinds and rebases branches often. |
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: ${EGIT_PRUNE:=} |
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|
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# @FUNCTION: git_submodules |
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# @DESCRIPTION: |
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# Internal function wrapping the submodule initialisation and update |
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git_submodules() { |
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if [[ -n ${EGIT_HAS_SUBMODULES} ]]; then |
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debug-print "git submodule init" |
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git submodule init |
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debug-print "git submodule update" |
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git submodule update |
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fi |
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} |
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|
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# @FUNCTION: git_branch |
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# @DESCRIPTION: |
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# Internal function that changes branch for the repo based on EGIT_TREE and |
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# EGIT_BRANCH variables. |
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git_branch() { |
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local branchname=branch-${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 "git checkout -b ${branchname} ${src}" |
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git checkout -b ${branchname} ${src} &> /dev/null |
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|
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unset branchname src |
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} |
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|
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# @FUNCTION: git_fetch |
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# @DESCRIPTION: |
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# Gets repository from EGIT_REPO_URI and store it in specified EGIT_STORE_DIR |
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git_fetch() { |
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debug-print-function ${FUNCNAME} "$@" |
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|
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local GIT_DIR EGIT_CLONE_DIR oldsha1 cursha1 extra_clone_opts upstream_branch |
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[[ -z ${EGIT_HAS_SUBMODULES} ]] && export GIT_DIR |
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|
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# choose if user wants elog or just einfo. |
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if [[ -n ${EGIT_QUIET} ]]; then |
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elogcmd="einfo" |
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else |
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elogcmd="elog" |
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fi |
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|
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# If we have same branch and the tree we can do --depth 1 clone |
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# which outputs into really smaller data transfers. |
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# Sadly we can do shallow copy for now because quite a few packages need .git |
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# folder. |
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#[[ ${EGIT_COMMIT} = ${EGIT_BRANCH} ]] && \ |
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# EGIT_FETCH_CMD="${EGIT_FETCH_CMD} --depth 1" |
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if [[ -n ${EGIT_TREE} ]] ; then |
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EGIT_COMMIT=${EGIT_TREE} |
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ewarn "QA: Usage of deprecated EGIT_TREE variable detected." |
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ewarn "QA: Use EGIT_COMMIT variable instead." |
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fi |
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|
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# EGIT_REPO_URI is empty. |
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[[ -z ${EGIT_REPO_URI} ]] && die "${EGIT}: EGIT_REPO_URI is empty." |
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|
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# check for the protocol or pull from a local repo. |
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if [[ -z ${EGIT_REPO_URI%%:*} ]] ; then |
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case ${EGIT_REPO_URI%%:*} in |
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git*|http|https|rsync|ssh) ;; |
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*) die "${EGIT}: protocol for fetch from "${EGIT_REPO_URI%:*}" is not yet implemented in eclass." ;; |
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esac |
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fi |
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|
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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}: initial clone. creating git directory" |
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addwrite / |
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mkdir -p "${EGIT_STORE_DIR}" \ |
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|| die "${EGIT}: can't mkdir ${EGIT_STORE_DIR}." |
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export SANDBOX_WRITE="${SANDBOX_WRITE%%:/}" |
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fi |
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|
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cd -P "${EGIT_STORE_DIR}" || die "${EGIT}: can't chdir to ${EGIT_STORE_DIR}" |
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EGIT_STORE_DIR=${PWD} |
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|
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# allow writing into EGIT_STORE_DIR |
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addwrite "${EGIT_STORE_DIR}" |
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|
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[[ -z ${EGIT_REPO_URI##*/} ]] && EGIT_REPO_URI="${EGIT_REPO_URI%/}" |
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EGIT_CLONE_DIR="${EGIT_PROJECT}" |
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|
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debug-print "${FUNCNAME}: EGIT_OPTIONS = \"${EGIT_OPTIONS}\"" |
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|
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GIT_DIR="${EGIT_STORE_DIR}/${EGIT_CLONE_DIR}" |
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# we also have to remove all shallow copied repositories |
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# and fetch them again |
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if [[ -e "${GIT_DIR}/shallow" ]]; then |
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rm -rf "${GIT_DIR}" |
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einfo "The ${EGIT_CLONE_DIR} was shallow copy. Refetching." |
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fi |
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# repack from bare copy to normal one |
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if [[ -n ${EGIT_HAS_SUBMODULES} ]] && [[ -d ${GIT_DIR} && ! -d ${GIT_DIR}/.git ]]; then |
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rm -rf "${GIT_DIR}" |
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einfo "The ${EGIT_CLONE_DIR} was bare copy. Refetching." |
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fi |
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if [[ -z ${EGIT_HAS_SUBMODULES} ]] && [[ -d ${GIT_DIR} && -d ${GIT_DIR}/.git ]]; then |
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rm -rf "${GIT_DIR}" |
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einfo "The ${EGIT_CLONE_DIR} was not a bare copy. Refetching." |
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fi |
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|
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if [[ -n ${EGIT_HAS_SUBMODULES} ]]; then |
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upstream_branch=origin/${EGIT_BRANCH} |
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else |
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upstream_branch=${EGIT_BRANCH} |
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extra_clone_opts=--bare |
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fi |
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|
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if [[ ! -d ${GIT_DIR} ]] ; then |
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# first clone |
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${elogcmd} "GIT NEW clone -->" |
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${elogcmd} " repository: ${EGIT_REPO_URI}" |
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|
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debug-print "${EGIT_FETCH_CMD} ${extra_clone_opts} ${EGIT_OPTIONS} \"${EGIT_REPO_URI}\" ${GIT_DIR}" |
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${EGIT_FETCH_CMD} ${extra_clone_opts} ${EGIT_OPTIONS} "${EGIT_REPO_URI}" ${GIT_DIR} \ |
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|| die "${EGIT}: can't fetch from ${EGIT_REPO_URI}." |
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|
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pushd "${GIT_DIR}" &> /dev/null |
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cursha1=$(git rev-parse ${upstream_branch}) |
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${elogcmd} " at the commit: ${cursha1}" |
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|
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git_submodules |
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popd &> /dev/null |
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elif [[ -n ${EGIT_OFFLINE} ]] ; then |
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pushd "${GIT_DIR}" &> /dev/null |
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cursha1=$(git rev-parse ${upstream_branch}) |
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${elogcmd} "GIT offline update -->" |
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${elogcmd} " repository: ${EGIT_REPO_URI}" |
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${elogcmd} " at the commit: ${cursha1}" |
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popd &> /dev/null |
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else |
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pushd "${GIT_DIR}" &> /dev/null |
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# Git urls might change, so unconditionally set it here |
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git config remote.origin.url "${EGIT_REPO_URI}" |
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|
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# fetch updates |
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${elogcmd} "GIT update -->" |
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${elogcmd} " repository: ${EGIT_REPO_URI}" |
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|
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oldsha1=$(git rev-parse ${upstream_branch}) |
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|
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if [[ -n ${EGIT_HAS_SUBMODULES} ]]; then |
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debug-print "${EGIT_UPDATE_CMD} ${EGIT_OPTIONS}" |
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# fix branching |
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git checkout ${EGIT_MASTER} |
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for x in $(git branch |grep -v "* ${EGIT_MASTER}" |tr '\n' ' '); do |
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git branch -D ${x} |
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done |
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${EGIT_UPDATE_CMD} ${EGIT_OPTIONS} \ |
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|| die "${EGIT}: can't update from ${EGIT_REPO_URI}." |
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else |
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debug-print "${EGIT_UPDATE_CMD} ${EGIT_OPTIONS} origin ${EGIT_BRANCH}:${EGIT_BRANCH}" |
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${EGIT_UPDATE_CMD} ${EGIT_OPTIONS} origin ${EGIT_BRANCH}:${EGIT_BRANCH} \ |
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|| die "${EGIT}: can't update from ${EGIT_REPO_URI}." |
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fi |
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|
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git_submodules |
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cursha1=$(git rev-parse ${upstream_branch}) |
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|
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# write out message based on the revisions |
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if [[ "${oldsha1}" != "${cursha1}" ]]; then |
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${elogcmd} " updating from commit: ${oldsha1}" |
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${elogcmd} " to commit: ${cursha1}" |
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else |
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${elogcmd} " at the commit: ${cursha1}" |
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# @ECLASS_VARIABLE: LIVE_FAIL_FETCH_IF_REPO_NOT_UPDATED |
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# @DESCRIPTION: |
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# If this variable is set to TRUE in make.conf or somewhere in |
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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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# TODO: this can lead to issues if more projects/packages use same repo |
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[[ ${LIVE_FAIL_FETCH_IF_REPO_NOT_UPDATED} = true ]] && \ |
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debug-print "${FUNCNAME}: Repository \"${EGIT_REPO_URI}\" is up-to-date. Skipping." && \ |
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die "${EGIT}: Repository \"${EGIT_REPO_URI}\" is up-to-date. Skipping." |
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fi |
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${EGIT_DIFFSTAT_CMD} ${oldsha1}..${upstream_branch} |
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popd &> /dev/null |
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fi |
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|
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pushd "${GIT_DIR}" &> /dev/null |
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if [[ -n ${EGIT_REPACK} ]] || [[ -n ${EGIT_PRUNE} ]]; then |
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ebegin "Garbage collecting the repository" |
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local args |
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[[ -n ${EGIT_PRUNE} ]] && args='--prune' |
| 348 |
git gc ${args} |
| 349 |
eend $? |
| 350 |
fi |
| 351 |
popd &> /dev/null |
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|
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# export the git version |
| 354 |
export EGIT_VERSION="${cursha1}" |
| 355 |
|
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# log the repo state |
| 357 |
[[ "${EGIT_COMMIT}" != "${EGIT_BRANCH}" ]] && ${elogcmd} " commit: ${EGIT_COMMIT}" |
| 358 |
${elogcmd} " branch: ${EGIT_BRANCH}" |
| 359 |
${elogcmd} " storage directory: \"${GIT_DIR}\"" |
| 360 |
|
| 361 |
if [[ -n ${EGIT_HAS_SUBMODULES} ]]; then |
| 362 |
pushd "${GIT_DIR}" &> /dev/null |
| 363 |
debug-print "rsync -rlpgo . \"${S}\"" |
| 364 |
time rsync -rlpgo . "${S}" |
| 365 |
popd &> /dev/null |
| 366 |
else |
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unset GIT_DIR |
| 368 |
debug-print "git clone -l -s -n \"${EGIT_STORE_DIR}/${EGIT_CLONE_DIR}\" \"${S}\"" |
| 369 |
git clone -l -s -n "${EGIT_STORE_DIR}/${EGIT_CLONE_DIR}" "${S}" |
| 370 |
fi |
| 371 |
|
| 372 |
pushd "${S}" &> /dev/null |
| 373 |
git_branch |
| 374 |
# submodules always reqire net (thanks to branches changing) |
| 375 |
[[ -z ${EGIT_OFFLINE} ]] && git_submodules |
| 376 |
popd &> /dev/null |
| 377 |
|
| 378 |
echo ">>> Unpacked to ${S}" |
| 379 |
} |
| 380 |
|
| 381 |
# @FUNCTION: git_bootstrap |
| 382 |
# @DESCRIPTION: |
| 383 |
# Runs bootstrap command if EGIT_BOOTSTRAP variable contains some value |
| 384 |
# Remember that what ever gets to the EGIT_BOOTSTRAP variable gets evaled by bash. |
| 385 |
git_bootstrap() { |
| 386 |
debug-print-function ${FUNCNAME} "$@" |
| 387 |
|
| 388 |
if [[ -n ${EGIT_BOOTSTRAP} ]] ; then |
| 389 |
pushd "${S}" > /dev/null |
| 390 |
einfo "Starting bootstrap" |
| 391 |
|
| 392 |
if [[ -f ${EGIT_BOOTSTRAP} ]]; then |
| 393 |
# we have file in the repo which we should execute |
| 394 |
debug-print "$FUNCNAME: bootstraping with file \"${EGIT_BOOTSTRAP}\"" |
| 395 |
|
| 396 |
if [[ -x ${EGIT_BOOTSTRAP} ]]; then |
| 397 |
eval "./${EGIT_BOOTSTRAP}" \ |
| 398 |
|| die "${EGIT}: bootstrap script failed" |
| 399 |
else |
| 400 |
eerror "\"${EGIT_BOOTSTRAP}\" is not executable." |
| 401 |
eerror "Report upstream, or bug ebuild maintainer to remove bootstrap command." |
| 402 |
die "${EGIT}: \"${EGIT_BOOTSTRAP}\" is not executable." |
| 403 |
fi |
| 404 |
else |
| 405 |
# we execute some system command |
| 406 |
debug-print "$FUNCNAME: bootstraping with commands \"${EGIT_BOOTSTRAP}\"" |
| 407 |
|
| 408 |
eval "${EGIT_BOOTSTRAP}" \ |
| 409 |
|| die "${EGIT}: bootstrap commands failed." |
| 410 |
|
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fi |
| 412 |
|
| 413 |
einfo "Bootstrap finished" |
| 414 |
popd > /dev/null |
| 415 |
fi |
| 416 |
} |
| 417 |
|
| 418 |
# @FUNCTION: git_apply_patches |
| 419 |
# @DESCRIPTION: |
| 420 |
# Apply patches from EGIT_PATCHES bash array. |
| 421 |
# Preferred is using the variable as bash array but for now it allows to write |
| 422 |
# it also as normal space separated string list. (This part of code should be |
| 423 |
# removed when all ebuilds get converted on bash array). |
| 424 |
git_apply_patches() { |
| 425 |
debug-print-function ${FUNCNAME} "$@" |
| 426 |
|
| 427 |
pushd "${S}" > /dev/null |
| 428 |
if [[ ${#EGIT_PATCHES[@]} -gt 1 ]] ; then |
| 429 |
for i in "${EGIT_PATCHES[@]}"; do |
| 430 |
debug-print "$FUNCNAME: git_autopatch: patching from ${i}" |
| 431 |
epatch "${i}" |
| 432 |
done |
| 433 |
elif [[ -n ${EGIT_PATCHES} ]]; then |
| 434 |
# no need for loop if space separated string is passed. |
| 435 |
debug-print "$FUNCNAME: git_autopatch: patching from ${EGIT_PATCHES}" |
| 436 |
epatch "${EGIT_PATCHES}" |
| 437 |
fi |
| 438 |
|
| 439 |
popd > /dev/null |
| 440 |
} |
| 441 |
|
| 442 |
# @FUNCTION: git_src_unpack |
| 443 |
# @DESCRIPTION: |
| 444 |
# src_upack function, calls src_prepare one if EAPI!=2. |
| 445 |
git_src_unpack() { |
| 446 |
debug-print-function ${FUNCNAME} "$@" |
| 447 |
|
| 448 |
git_fetch || die "${EGIT}: unknown problem in git_fetch()." |
| 449 |
|
| 450 |
has src_prepare ${EXPORTED_FUNCTIONS} || git_src_prepare |
| 451 |
} |
| 452 |
|
| 453 |
# @FUNCTION: git_src_prepare |
| 454 |
# @DESCRIPTION: |
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# src_prepare function for git stuff. Patches, bootstrap... |
| 456 |
git_src_prepare() { |
| 457 |
debug-print-function ${FUNCNAME} "$@" |
| 458 |
|
| 459 |
git_apply_patches |
| 460 |
git_bootstrap |
| 461 |
} |
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