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205 lines
6.5 KiB
205 lines
6.5 KiB
# Copyright 1999-2015 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# @ECLASS: darcs.eclass
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# @MAINTAINER:
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# "Gentoo's Haskell Language team" <haskell@gentoo.org>
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# Sergei Trofimovich <slyfox@gentoo.org>
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# @AUTHOR:
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# Original Author: Jeffrey Yasskin <jyasskin@mail.utexas.edu>
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# <rphillips@gentoo.org> (tla eclass author)
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# Andres Loeh <kosmikus@gentoo.org> (darcs.eclass author)
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# Alexander Vershilov <alexander.vershilov@gmail.com> (various contributions)
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# @BLURB: This eclass provides functions for fetch and unpack darcs repositories
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# @DESCRIPTION:
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# This eclass provides the generic darcs fetching functions.
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#
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# Define the EDARCS_REPOSITORY variable at least.
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# The ${S} variable is set to ${WORKDIR}/${P}.
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# TODO:
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# support for tags
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inherit eutils # eshopts_{push,pop}
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# Don't download anything other than the darcs repository
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SRC_URI=""
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# You shouldn't change these settings yourself! The ebuild/eclass inheriting
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# this eclass will take care of that.
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# --- begin ebuild-configurable settings
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# darcs command to run
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# @ECLASS-VARIABLE: EDARCS_DARCS_CMD
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# @DESCRIPTION:
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# Path to darcs binary.
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: ${EDARCS_DARCS_CMD:=darcs}
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# darcs commands with command-specific options
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# @ECLASS-VARIABLE: EDARCS_GET_CMD
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# @DESCRIPTION:
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# First fetch darcs command.
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: ${EDARCS_GET_CMD:=get --lazy}
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# @ECLASS-VARIABLE: EDARCS_UPDATE_CMD
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# @DESCRIPTION:
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# Repo update darcs command.
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: ${EDARCS_UPDATE_CMD:=pull}
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# @ECLASS-VARIABLE: EDARCS_OPTIONS
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# @DESCRIPTION:
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# Options to pass to both the "get" and "update" commands
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: ${EDARCS_OPTIONS:=--set-scripts-executable}
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# @ECLASS-VARIABLE: EDARCS_TOP_DIR
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# @DESCRIPTION:
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# Where the darcs repositories are stored/accessed
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: ${EDARCS_TOP_DIR:=${PORTAGE_ACTUAL_DISTDIR-${DISTDIR}}/darcs-src}
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# @ECLASS-VARIABLE: EDARCS_REPOSITORY
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# @DESCRIPTION:
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# The URI to the repository.
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: ${EDARCS_REPOSITORY:=}
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# @ECLASS-VARIABLE: EDARCS_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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# a darcs repository. This is intended to be set outside the darcs source
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# tree by users. Defaults to EVCS_OFFLINE value.
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: ${EDARCS_OFFLINE:=${EVCS_OFFLINE}}
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# @ECLASS-VARIABLE: EDARCS_CLEAN
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# @DESCRIPTION:
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# Set this to something to get a clean copy when updating
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# (removes the working directory, then uses EDARCS_GET_CMD to
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# re-download it.)
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: ${EDARCS_CLEAN:=}
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# --- end ebuild-configurable settings ---
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DEPEND="dev-vcs/darcs
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net-misc/rsync"
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# @FUNCTION: darcs_patchcount
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# @DESCRIPTION:
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# Internal function to determine amount of patches in repository.
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darcs_patchcount() {
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set -- $(HOME="${EDARCS_TOP_DIR}" ${EDARCS_DARCS_CMD} show repo --repodir="${EDARCS_TOP_DIR}/${EDARCS_LOCALREPO}" | grep "Num Patches")
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# handle string like: " Num Patches: 3860"
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echo ${3}
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}
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# @FUNCTION: darcs_fetch
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# @DESCRIPTION:
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# Internal function is called from darcs_src_unpack
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darcs_fetch() {
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# The local directory to store the repository (useful to ensure a
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# unique local name); relative to EDARCS_TOP_DIR
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[[ -z ${EDARCS_LOCALREPO} ]] && [[ -n ${EDARCS_REPOSITORY} ]] \
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&& EDARCS_LOCALREPO=${EDARCS_REPOSITORY%/} \
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&& EDARCS_LOCALREPO=${EDARCS_LOCALREPO##*/}
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debug-print-function ${FUNCNAME} $*
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if [[ -n ${EDARCS_CLEAN} ]]; then
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addwrite "${EDARCS_TOP_DIR}/${EDARCS_LOCALREPO}"
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rm -rf "${EDARCS_TOP_DIR}/${EDARCS_LOCALREPO}"
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fi
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# create the top dir if needed
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if [[ ! -d ${EDARCS_TOP_DIR} ]]; then
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# note that the addwrite statements in this block are only there to allow creating EDARCS_TOP_DIR;
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# we've already allowed writing inside it
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# this is because it's simpler than trying to find out the parent path of the directory, which
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# would need to be the real path and not a symlink for things to work (so we can't just remove
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# the last path element in the string)
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debug-print "${FUNCNAME}: checkout mode. creating darcs directory"
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addwrite /foobar
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addwrite /
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mkdir -p "${EDARCS_TOP_DIR}"
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export SANDBOX_WRITE="${SANDBOX_WRITE//:\/foobar:\/}"
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fi
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# in case EDARCS_DARCS_DIR is a symlink to a dir, get the real
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# dir's path, otherwise addwrite() doesn't work.
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pushd . || die
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cd -P "${EDARCS_TOP_DIR}" > /dev/null
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EDARCS_TOP_DIR="`/bin/pwd`"
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# disable the sandbox for this dir
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addwrite "${EDARCS_TOP_DIR}"
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# determine checkout or update mode and change to the right directory.
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if [[ ! -d "${EDARCS_TOP_DIR}/${EDARCS_LOCALREPO}/_darcs" ]]; then
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mode=get
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cd "${EDARCS_TOP_DIR}"
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else
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mode=update
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cd "${EDARCS_TOP_DIR}/${EDARCS_LOCALREPO}"
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fi
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# commands to run
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local cmdget="${EDARCS_DARCS_CMD} ${EDARCS_GET_CMD} ${EDARCS_OPTIONS} --repo-name=${EDARCS_LOCALREPO} ${EDARCS_REPOSITORY}"
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local cmdupdate="${EDARCS_DARCS_CMD} ${EDARCS_UPDATE_CMD} --all ${EDARCS_OPTIONS} ${EDARCS_REPOSITORY}"
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if [[ ${mode} == "get" ]]; then
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einfo "Running ${cmdget}"
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HOME="${EDARCS_TOP_DIR}" ${cmdget} || die "darcs get command failed"
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elif [[ -n ${EDARCS_OFFLINE} ]] ; then
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einfo "Offline update"
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elif [[ ${mode} == "update" ]]; then
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einfo "Running ${cmdupdate}"
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HOME="${EDARCS_TOP_DIR}" ${cmdupdate} || die "darcs update command failed"
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fi
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export EDARCS_PATCHCOUNT=$(darcs_patchcount)
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einfo " patches in repo: ${EDARCS_PATCHCOUNT}"
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popd || die
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}
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# @FUNCTION: darcs_src_unpack
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# @DESCRIPTION:
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# src_upack function
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darcs_src_unpack() {
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# The local directory to store the repository (useful to ensure a
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# unique local name); relative to EDARCS_TOP_DIR
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[[ -z ${EDARCS_LOCALREPO} ]] && [[ -n ${EDARCS_REPOSITORY} ]] \
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&& EDARCS_LOCALREPO=${EDARCS_REPOSITORY%/} \
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&& EDARCS_LOCALREPO=${EDARCS_LOCALREPO##*/}
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debug-print-function ${FUNCNAME} $*
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debug-print "${FUNCNAME}: init:
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EDARCS_DARCS_CMD=${EDARCS_DARCS_CMD}
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EDARCS_GET_CMD=${EDARCS_GET_CMD}
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EDARCS_UPDATE_CMD=${EDARCS_UPDATE_CMD}
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EDARCS_OPTIONS=${EDARCS_OPTIONS}
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EDARCS_TOP_DIR=${EDARCS_TOP_DIR}
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EDARCS_REPOSITORY=${EDARCS_REPOSITORY}
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EDARCS_LOCALREPO=${EDARCS_LOCALREPO}
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EDARCS_CLEAN=${EDARCS_CLEAN}"
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einfo "Fetching darcs repository ${EDARCS_REPOSITORY} into ${EDARCS_TOP_DIR}..."
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darcs_fetch
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einfo "Copying ${EDARCS_LOCALREPO} from ${EDARCS_TOP_DIR}..."
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debug-print "Copying ${EDARCS_LOCALREPO} from ${EDARCS_TOP_DIR}..."
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# probably redundant, but best to make sure
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# Use ${WORKDIR}/${P} rather than ${S} so user can point ${S} to something inside.
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mkdir -p "${WORKDIR}/${P}"
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eshopts_push -s dotglob # get any dotfiles too.
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rsync -rlpgo "${EDARCS_TOP_DIR}/${EDARCS_LOCALREPO}"/* "${WORKDIR}/${P}"
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eshopts_pop
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einfo "Darcs repository contents are now in ${WORKDIR}/${P}"
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}
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EXPORT_FUNCTIONS src_unpack
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