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Diffstat (limited to 'eclass/darcs.eclass')
| -rw-r--r-- | eclass/darcs.eclass | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/eclass/darcs.eclass b/eclass/darcs.eclass new file mode 100644 index 000000000000..cac00cc01f27 --- /dev/null +++ b/eclass/darcs.eclass @@ -0,0 +1,204 @@ +# Copyright 1999-2015 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 + +# @ECLASS: darcs.eclass +# @MAINTAINER: +# "Gentoo's Haskell Language team" <haskell@gentoo.org> +# Sergei Trofimovich <slyfox@gentoo.org> +# @AUTHOR: +# Original Author: Jeffrey Yasskin <jyasskin@mail.utexas.edu> +# <rphillips@gentoo.org> (tla eclass author) +# Andres Loeh <kosmikus@gentoo.org> (darcs.eclass author) +# Alexander Vershilov <alexander.vershilov@gmail.com> (various contributions) +# @BLURB: This eclass provides functions for fetch and unpack darcs repositories +# @DESCRIPTION: +# This eclass provides the generic darcs fetching functions. +# +# Define the EDARCS_REPOSITORY variable at least. +# The ${S} variable is set to ${WORKDIR}/${P}. + +# TODO: + +# support for tags + +inherit eutils # eshopts_{push,pop} + +# Don't download anything other than the darcs repository +SRC_URI="" + +# You shouldn't change these settings yourself! The ebuild/eclass inheriting +# this eclass will take care of that. + +# --- begin ebuild-configurable settings + +# darcs command to run +# @ECLASS-VARIABLE: EDARCS_DARCS_CMD +# @DESCRIPTION: +# Path to darcs binary. +: ${EDARCS_DARCS_CMD:=darcs} + +# darcs commands with command-specific options + +# @ECLASS-VARIABLE: EDARCS_GET_CMD +# @DESCRIPTION: +# First fetch darcs command. +: ${EDARCS_GET_CMD:=get --lazy} + +# @ECLASS-VARIABLE: EDARCS_UPDATE_CMD +# @DESCRIPTION: +# Repo update darcs command. +: ${EDARCS_UPDATE_CMD:=pull} + +# @ECLASS-VARIABLE: EDARCS_OPTIONS +# @DESCRIPTION: +# Options to pass to both the "get" and "update" commands +: ${EDARCS_OPTIONS:=--set-scripts-executable} + +# @ECLASS-VARIABLE: EDARCS_TOP_DIR +# @DESCRIPTION: +# Where the darcs repositories are stored/accessed +: ${EDARCS_TOP_DIR:=${PORTAGE_ACTUAL_DISTDIR-${DISTDIR}}/darcs-src} + +# @ECLASS-VARIABLE: EDARCS_REPOSITORY +# @DESCRIPTION: +# The URI to the repository. +: ${EDARCS_REPOSITORY:=} + +# @ECLASS-VARIABLE: EDARCS_OFFLINE +# @DESCRIPTION: +# Set this variable to a non-empty value to disable the automatic updating of +# a darcs repository. This is intended to be set outside the darcs source +# tree by users. Defaults to EVCS_OFFLINE value. +: ${EDARCS_OFFLINE:=${EVCS_OFFLINE}} + +# @ECLASS-VARIABLE: EDARCS_CLEAN +# @DESCRIPTION: +# Set this to something to get a clean copy when updating +# (removes the working directory, then uses EDARCS_GET_CMD to +# re-download it.) +: ${EDARCS_CLEAN:=} + +# --- end ebuild-configurable settings --- + +DEPEND="dev-vcs/darcs + net-misc/rsync" + +# @FUNCTION: darcs_patchcount +# @DESCRIPTION: +# Internal function to determine amount of patches in repository. +darcs_patchcount() { + set -- $(HOME="${EDARCS_TOP_DIR}" ${EDARCS_DARCS_CMD} show repo --repodir="${EDARCS_TOP_DIR}/${EDARCS_LOCALREPO}" | grep "Num Patches") + # handle string like: " Num Patches: 3860" + echo ${3} +} + +# @FUNCTION: darcs_fetch +# @DESCRIPTION: +# Internal function is called from darcs_src_unpack +darcs_fetch() { + # The local directory to store the repository (useful to ensure a + # unique local name); relative to EDARCS_TOP_DIR + [[ -z ${EDARCS_LOCALREPO} ]] && [[ -n ${EDARCS_REPOSITORY} ]] \ + && EDARCS_LOCALREPO=${EDARCS_REPOSITORY%/} \ + && EDARCS_LOCALREPO=${EDARCS_LOCALREPO##*/} + + debug-print-function ${FUNCNAME} $* + + if [[ -n ${EDARCS_CLEAN} ]]; then + addwrite "${EDARCS_TOP_DIR}/${EDARCS_LOCALREPO}" + rm -rf "${EDARCS_TOP_DIR}/${EDARCS_LOCALREPO}" + fi + + # create the top dir if needed + if [[ ! -d ${EDARCS_TOP_DIR} ]]; then + # note that the addwrite statements in this block are only there to allow creating EDARCS_TOP_DIR; + # we've already allowed writing inside it + # this is because it's simpler than trying to find out the parent path of the directory, which + # would need to be the real path and not a symlink for things to work (so we can't just remove + # the last path element in the string) + debug-print "${FUNCNAME}: checkout mode. creating darcs directory" + addwrite /foobar + addwrite / + mkdir -p "${EDARCS_TOP_DIR}" + export SANDBOX_WRITE="${SANDBOX_WRITE//:\/foobar:\/}" + fi + + # in case EDARCS_DARCS_DIR is a symlink to a dir, get the real + # dir's path, otherwise addwrite() doesn't work. + pushd . || die + cd -P "${EDARCS_TOP_DIR}" > /dev/null + EDARCS_TOP_DIR="`/bin/pwd`" + + # disable the sandbox for this dir + addwrite "${EDARCS_TOP_DIR}" + + # determine checkout or update mode and change to the right directory. + if [[ ! -d "${EDARCS_TOP_DIR}/${EDARCS_LOCALREPO}/_darcs" ]]; then + mode=get + cd "${EDARCS_TOP_DIR}" + else + mode=update + cd "${EDARCS_TOP_DIR}/${EDARCS_LOCALREPO}" + fi + + # commands to run + local cmdget="${EDARCS_DARCS_CMD} ${EDARCS_GET_CMD} ${EDARCS_OPTIONS} --repo-name=${EDARCS_LOCALREPO} ${EDARCS_REPOSITORY}" + local cmdupdate="${EDARCS_DARCS_CMD} ${EDARCS_UPDATE_CMD} --all ${EDARCS_OPTIONS} ${EDARCS_REPOSITORY}" + + if [[ ${mode} == "get" ]]; then + einfo "Running ${cmdget}" + HOME="${EDARCS_TOP_DIR}" ${cmdget} || die "darcs get command failed" + elif [[ -n ${EDARCS_OFFLINE} ]] ; then + einfo "Offline update" + elif [[ ${mode} == "update" ]]; then + einfo "Running ${cmdupdate}" + HOME="${EDARCS_TOP_DIR}" ${cmdupdate} || die "darcs update command failed" + fi + + export EDARCS_PATCHCOUNT=$(darcs_patchcount) + einfo " patches in repo: ${EDARCS_PATCHCOUNT}" + + popd || die +} + +# @FUNCTION: darcs_src_unpack +# @DESCRIPTION: +# src_upack function +darcs_src_unpack() { + # The local directory to store the repository (useful to ensure a + # unique local name); relative to EDARCS_TOP_DIR + [[ -z ${EDARCS_LOCALREPO} ]] && [[ -n ${EDARCS_REPOSITORY} ]] \ + && EDARCS_LOCALREPO=${EDARCS_REPOSITORY%/} \ + && EDARCS_LOCALREPO=${EDARCS_LOCALREPO##*/} + + debug-print-function ${FUNCNAME} $* + + debug-print "${FUNCNAME}: init: + EDARCS_DARCS_CMD=${EDARCS_DARCS_CMD} + EDARCS_GET_CMD=${EDARCS_GET_CMD} + EDARCS_UPDATE_CMD=${EDARCS_UPDATE_CMD} + EDARCS_OPTIONS=${EDARCS_OPTIONS} + EDARCS_TOP_DIR=${EDARCS_TOP_DIR} + EDARCS_REPOSITORY=${EDARCS_REPOSITORY} + EDARCS_LOCALREPO=${EDARCS_LOCALREPO} + EDARCS_CLEAN=${EDARCS_CLEAN}" + + einfo "Fetching darcs repository ${EDARCS_REPOSITORY} into ${EDARCS_TOP_DIR}..." + darcs_fetch + + einfo "Copying ${EDARCS_LOCALREPO} from ${EDARCS_TOP_DIR}..." + debug-print "Copying ${EDARCS_LOCALREPO} from ${EDARCS_TOP_DIR}..." + + # probably redundant, but best to make sure + # Use ${WORKDIR}/${P} rather than ${S} so user can point ${S} to something inside. + mkdir -p "${WORKDIR}/${P}" + + eshopts_push -s dotglob # get any dotfiles too. + rsync -rlpgo "${EDARCS_TOP_DIR}/${EDARCS_LOCALREPO}"/* "${WORKDIR}/${P}" + eshopts_pop + + einfo "Darcs repository contents are now in ${WORKDIR}/${P}" + +} + +EXPORT_FUNCTIONS src_unpack |