From 423e90915d930f680ffec4eb5157696deaac35ba Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Tue, 27 Feb 2007 21:14:00 +0000
Subject: Massive speedup in the package/target scanning step - per package
 metadata files are now cached. - timestamp.pl calls have been replaced with
 make file dependencies - an extra stamp file ensures that directory listing
 changes force a rebuild

SVN-Revision: 6404
---
 include/scan.mk | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)
 create mode 100644 include/scan.mk

(limited to 'include/scan.mk')

diff --git a/include/scan.mk b/include/scan.mk
new file mode 100644
index 0000000000..7725fc713a
--- /dev/null
+++ b/include/scan.mk
@@ -0,0 +1,43 @@
+include $(TOPDIR)/include/verbose.mk
+
+SCAN_TARGET ?= pkginfo
+SCAN_NAME ?= package
+SCAN_DIR ?= package
+SCAN_DEPS ?= include/package.mk
+
+ifeq ($(IS_TTY),1)
+  define progress
+	printf "\033[M\r$(1)" >&2;
+  endef
+else
+  define progress
+	:
+  endef
+endif
+
+SCAN = $(patsubst $(SCAN_DIR)/%/Makefile,%,$(shell ls $(SCAN_DIR)/*/Makefile))
+tmp/.$(SCAN_TARGET):
+	@($(call progress,Collecting $(SCAN_NAME) info: merging...))
+	for file in $(SCAN); do \
+		cat tmp/info/.$(SCAN_TARGET)-$$file; \
+	done > $@
+	@($(call progress,Collecting $(SCAN_NAME) info: done))
+	@echo
+
+define scanfiles
+$(foreach FILE,$(SCAN),
+  tmp/.$(SCAN_TARGET): tmp/info/.$(SCAN_TARGET)-$(FILE) FORCE
+  tmp/info/.$(SCAN_TARGET)-$(FILE): $(SCAN_DEPS) $(SCAN_DIR)/$(FILE)/Makefile
+	{ \
+		$$(call progress,Collecting $(SCAN_NAME) info: $(SCAN_DIR)/$(FILE)) \
+		echo Source-Makefile: $(SCAN_DIR)/$(FILE)/Makefile; \
+		$(NO_TRACE_MAKE) --no-print-dir DUMP=1 -C $(SCAN_DIR)/$(FILE) 3>/dev/null || echo "ERROR: please fix $(SCAN_DIR)/$(FILE)/Makefile" >&2; \
+		echo; \
+	} > $$@
+)
+
+endef
+$(eval $(call scanfiles))
+
+FORCE:
+.PHONY: FORCE
-- 
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