add mercurial.eclass, similar to cvs.eclass etc

1 files changed, 69 insertions, 0 deletions

diff --git a/eclass/mercurial.eclass b/eclass/mercurial.eclass
new file mode 100644
index 000000000000..941b6e21b112
--- /dev/null
+++ b/eclass/mercurial.eclass
@@ -0,0 +1,69 @@
+# Copyright 1999-2006 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/eclass/mercurial.eclass,v 1.1 2006/05/20 02:43:01 agriffis Exp $
+
+# mercurial: Fetch sources from mercurial repositories, similar to cvs.eclass.
+# To use this from an ebuild, set EHG_REPO_URI in your ebuild.  Then either
+# leave the default src_unpack or call mercurial_src_unpack.
+
+inherit eutils
+
+EXPORT_FUNCTIONS src_unpack
+
+DEPEND="dev-util/mercurial net-misc/rsync"
+EHG_STORE_DIR="${PORTAGE_ACTUAL_DISTDIR-${DISTDIR}}/hg-src"
+
+# This must be set by the ebuild
+: ${EHG_REPO_URI:=}                                 # repository uri
+
+# These can be set by the ebuild but are usually fine as-is
+: ${EHG_CLONE_CMD:=hg clone}                        # clone cmd
+: ${EHG_PULL_CMD:=hg pull -u}                       # pull cmd
+
+# should be set but blank to prevent using $HOME/.hgrc
+export HGRCPATH=
+
+function mercurial_fetch {
+	declare repo=${1:-$EHG_REPO_URI} proj=${2:-${PN/-hg}}
+	repo=${repo%/}	# remove trailing slash
+	[[ -n $repo ]] || die "EHG_REPO_URI is empty"
+
+	if [[ ! -d ${EHG_STORE_DIR} ]]; then
+		ebegin "create ${EHG_STORE_DIR}"
+		addwrite / &&
+			mkdir -p "${EHG_STORE_DIR}" &&
+			chmod -f o+rw "${EHG_STORE_DIR}" &&
+			export SANDBOX_WRITE="${SANDBOX_WRITE%:/}"
+		eend $? || die
+	fi
+
+	cd "${EHG_STORE_DIR}" || die "can't chdir to ${EHG_STORE_DIR}"
+	addwrite "$(pwd -P)"
+
+	if [[ ! -d ${proj}/${repo##*/} ]]; then
+		# first check out
+		ebegin "${EHG_CLONE_CMD} ${repo}"
+		mkdir -p "${proj}" &&
+			chmod -f o+rw "${proj}" &&
+			cd "${proj}" &&
+			${EHG_CLONE_CMD} "${repo}" &&
+			cd "${repo##*/}"
+		eend $? || die
+	else
+		# update working copy
+		ebegin "${EHG_PULL_CMD} ${repo}"
+		cd "${proj}/${repo##*/}" &&
+			${EHG_PULL_CMD}
+		eend $? || die
+	fi
+
+	# use rsync instead of cp for --exclude
+	ebegin "rsync to ${S}"
+	mkdir -p "${S}" &&
+		rsync -av --delete --exclude=.hg/ . "${S}"
+	eend $? || die
+}
+
+function mercurial_src_unpack {
+	mercurial_fetch
+}