texlive-*.eclass: move update_tldb from texlive-module to texlive-common

The TexLive package database (tlpdb) also needs to be updated by
app-text/texlive-core, which only inherits texlive-common.eclass.

Signed-off-by: Florian Schmaus <flow@gentoo.org>

1 files changed, 54 insertions, 0 deletions

diff --git a/eclass/texlive-common.eclass b/eclass/texlive-common.eclass
index e8a740df1f27..66d3999bd103 100644
--- a/eclass/texlive-common.eclass
+++ b/eclass/texlive-common.eclass
@@ -249,4 +249,58 @@ texlive-common_append_to_src_uri() {
 	fi
 }
 
+# @FUNCTION: texlive-common_update_tlpdb
+# @DESCRIPTION:
+# Update the TexLive package database at /usr/share/tlpkg/texlive.tlpdb.
+texlive-common_update_tlpdb() {
+	[[ -v TL_PV && ${TL_PV} -lt 2023 ]] && return
+
+	# If we are updating this package, then there is no need to update
+	# the tlpdb in postrm, as it will be again updated in postinst.
+	[[ ${EBUILD_PHASE} == postrm && -n ${REPLACED_BY_VERSION} ]] && return
+
+	local tlpkg="${EROOT}"/usr/share/tlpkg
+	local tlpobj="${tlpkg}"/tlpobj
+	local tlpdb="${tlpkg}"/texlive.tlpdb
+
+	ebegin "Regenerating TexLive package database"
+
+	local new_tlpdb="${T}"/texlive.tlpdb
+
+	touch "${new_tlpdb}" || die
+
+	find "${tlpobj}" -maxdepth 1 -type f -name "*.tlpobj" -print0 |
+		sort -z |
+		xargs -0 --no-run-if-empty cat >> "${new_tlpdb}"
+	assert "generating tlpdb failed"
+
+	if [[ -f ${tlpdb} ]]; then
+		cmp -s "${new_tlpdb}" "${tlpdb}"
+		local ret=$?
+		case ${ret} in
+			# content equal
+			0)
+				# Nothing to do, return.
+				eend 0
+				return
+				;;
+			# content differs
+			1)
+				;;
+			# cmp failed with an error
+			*)
+				eend ${ret} "comparing new and existing tlpdb failed (exit status: ${ret})"
+				die
+				;;
+		esac
+	fi
+
+	mv "${new_tlpdb}" "${tlpdb}"
+	eend $? "moving tlpdb into position failed (exit status: ${?})" || die
+
+	if [[ ! -s ${tlpdb} ]]; then
+		rm "${tlpdb}" || die
+	fi
+}
+
 fi