[Buildroot] [PATCH 2/6] manual: add package-list.txt generation support

[Samuel Martin]

Signed-off-by: Samuel Martin <s.martin49 at gmail.com>
---
 docs/manual/manual.mk | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/docs/manual/manual.mk b/docs/manual/manual.mk
index aa20534..c4a21b2 100644
--- a/docs/manual/manual.mk
+++ b/docs/manual/manual.mk
@@ -24,6 +24,26 @@ $$(O)/docs/$(1)/$(1).$(4): docs/$(1)/$(1).txt $$($(call UPPERCASE,$(1))_SOURCES)
 	  -D $$(@D) $$<
 endef
 
+$(TOPDIR)/docs/manual/package-list.txt:
+	@echo -en "\
+	//\n\
+	// Autogenerated file\n\
+	//\n\n\
+	[[package-list]]\n\
+	Available packages\n\
+	------------------\n\n\
+	// docs/manaual/pkg-list.txt is generated using the following command:\n\
+	// $ git grep -E '\\((autotools|cmake|generic)-package\\)' package/ | \\\n\
+	//     cut -d':' -f1 | grep '\\.mk$$' | \\\n\
+	//     sed -e 's;.*\\?/\\(.*\\?\\).mk;* \\1;' | \\\n\
+	//     sort > docs/manual/pkg-list.txt\n\n\
+	" > $@
+	grep -rHE --color=never '\((autotools|cmake|generic)-package\)' \
+		$(TOPDIR)/package/ | \
+		cut -d':' -f1 | grep '\.mk$$' | \
+		sed -e 's;.*\?/\(.*\?\).mk;* \1;' | \
+		sort >> $@
+
 ################################################################################
 # GENDOC -- generates the make targets needed to build asciidoc documentation.
 #
-- 
1.8.0.1