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-rw-r--r--sys/Makefile19
1 files changed, 19 insertions, 0 deletions
diff --git a/sys/Makefile b/sys/Makefile
index 47fd462..fcb7e0a 100644
--- a/sys/Makefile
+++ b/sys/Makefile
@@ -47,6 +47,25 @@ ${.CURDIR}/cscope.files: .PHONY
cscope-clean:
rm -f cscope.files cscope.out cscope.in.out cscope.po.out
+#
+# Installs SCM hooks to update the cscope database every time the source tree
+# is updated.
+# cscope understands incremental updates, so it's considerably faster when only
+# a few files have changed.
+#
+HG_DIR=${.CURDIR}/../.hg
+HG_HOOK=if [ \$$HG_ERROR -eq 0 ]; then cd sys && make -m ../share/mk cscope; fi
+cscope-hook:
+ @if [ -d ${HG_DIR} ]; then \
+ if [ "`grep hooks ${HG_DIR}/hgrc`" = "" ]; then \
+ echo "[hooks]" >> ${HG_DIR}/hgrc; \
+ echo "update = ${HG_HOOK}" >> ${HG_DIR}/hgrc; \
+ echo "Hook installed in ${HG_DIR}/hgrc"; \
+ else \
+ echo "Mercurial update hook already exists."; \
+ fi; \
+ fi
+
# You need the devel/global and one of editor/emacs* ports for that.
TAGS ${.CURDIR}/TAGS: ${.CURDIR}/cscope.files
rm -f ${.CURDIR}/TAGS
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