reinit the tree, so we can have metadata

1 files changed, 72 insertions, 0 deletions

diff --git a/eclass/vim-doc.eclass b/eclass/vim-doc.eclass
new file mode 100644
index 000000000000..5f281eba25f2
--- /dev/null
+++ b/eclass/vim-doc.eclass
@@ -0,0 +1,72 @@
+# Copyright 1999-2011 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+#
+# This eclass is used by vim.eclass and vim-plugin.eclass to update
+# the documentation tags.  This is necessary since vim doesn't look in
+# /usr/share/vim/vimfiles/doc for documentation; it only uses the
+# versioned directory, for example /usr/share/vim/vim62/doc
+#
+# We depend on vim being installed, which is satisfied by either the
+# DEPEND in vim-plugin or by whatever version of vim is being
+# installed by the eclass.
+
+
+update_vim_helptags() {
+	has "${EAPI:-0}" 0 1 2 && ! use prefix && EROOT="${ROOT}"
+	local vimfiles vim d s
+
+	# This is where vim plugins are installed
+	vimfiles="${EROOT}"/usr/share/vim/vimfiles
+
+	if [[ $PN != vim-core ]]; then
+		# Find a suitable vim binary for updating tags :helptags
+		vim=$(type -P vim 2>/dev/null)
+		[[ -z "$vim" ]] && vim=$(type -P gvim 2>/dev/null)
+		[[ -z "$vim" ]] && vim=$(type -P kvim 2>/dev/null)
+		if [[ -z "$vim" ]]; then
+			ewarn "No suitable vim binary to rebuild documentation tags"
+		fi
+	fi
+
+	# Make vim not try to connect to X. See :help gui-x11-start
+	# in vim for how this evil trickery works.
+	if [[ -n "${vim}" ]] ; then
+		ln -s "${vim}" "${T}/tagvim"
+		vim="${T}/tagvim"
+	fi
+
+	# Install the documentation symlinks into the versioned vim
+	# directory and run :helptags
+	for d in "${EROOT%/}"/usr/share/vim/vim[0-9]*; do
+		[[ -d "$d/doc" ]] || continue	# catch a failed glob
+
+		# Remove links, and possibly remove stale dirs
+		find $d/doc -name \*.txt -type l | while read s; do
+			[[ $(readlink "$s") = $vimfiles/* ]] && rm -f "$s"
+		done
+		if [[ -f "$d/doc/tags" && $(find "$d" | wc -l | tr -d ' ') = 3 ]]; then
+			# /usr/share/vim/vim61
+			# /usr/share/vim/vim61/doc
+			# /usr/share/vim/vim61/doc/tags
+			einfo "Removing $d"
+			rm -r "$d"
+			continue
+		fi
+
+		# Re-create / install new links
+		if [[ -d $vimfiles/doc ]]; then
+			ln -s $vimfiles/doc/*.txt $d/doc 2>/dev/null
+		fi
+
+		# Update tags; need a vim binary for this
+		if [[ -n "$vim" ]]; then
+			einfo "Updating documentation tags in $d"
+			DISPLAY= $vim -u NONE -U NONE -T xterm -X -n -f \
+				'+set nobackup nomore' \
+				"+helptags $d/doc" \
+				'+qa!' </dev/null &>/dev/null
+		fi
+	done
+
+	[[ -n "${vim}" && -f "${vim}" ]] && rm "${vim}"
+}