Refactor downloading code into download.mk

Support multiple file downloads
Support svn downloads


git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9057 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 90 insertions, 0 deletions

diff --git a/include/download.mk b/include/download.mk
new file mode 100644
index 000000000..1f227e221
--- /dev/null
+++ b/include/download.mk
@@ -0,0 +1,90 @@
+# 
+# Copyright (C) 2007 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+DOWNLOAD_RDEP:=$(STAMP_PREPARED)
+
+# Try to guess the download method from the URL
+define dl_method 
+$(strip \
+  $(if $(2),$(2), \
+    $(if $(filter @GNU/% @KERNEL/% @SF/% ftp://% http://%,$(1)),default, \
+      $(if $(filter git://%,$(1)),git, \
+        $(if $(filter svn://%,$(1)),svn, \
+          unknown \
+        ) \
+      ) \
+    ) \
+  ) \
+)
+endef
+
+# code for creating tarballs from svn/git checkouts - useful for mirror support
+dl_pack/bz2=tar cfj $(1) $(2)
+dl_pack/gz=tar cfz $(1) $(2)
+dl_pack/unknown=echo "ERROR: Unknown pack format for file $(1)"; false
+define dl_pack
+	$(if $(dl_pack/$(call ext,$(1))),$(dl_pack/$(call ext,$(1))),$(dl_pack/unknown))
+endef
+
+define DownloadMethod/unknown
+	@echo "ERROR: No download method available"; false
+endef
+
+define DownloadMethod/default
+	$(SCRIPT_DIR)/download.pl "$(DL_DIR)" "$(FILE)" "$(MD5SUM)" $(URL)
+endef
+
+define wrap_mirror
+	@$(if $(CONFIG_LOCALMIRROR),$(SCRIPT_DIR)/download.pl "$(DL_DIR)" "$(FILE)" "x" || ) \
+	( $(1) ) \
+	$(if $(CONFIG_LOCALMIRROR),, || $(SCRIPT_DIR)/download.pl "$(DL_DIR)" "$(FILE)" "x")
+endef
+
+define DownloadMethod/svn
+	$(call wrap_mirror, \
+		echo "Checking out files from svn repository..."; \
+		mkdir -p $(TMP_DIR)/dl && \
+		cd $(TMP_DIR)/dl && \
+		rm -rf $(SUBDIR) && \
+		[ \! -d $(SUBDIR) ] && \
+		svn co -r$(VERSION) $(URL) $(SUBDIR) && \
+		find $(SUBDIR) -name .svn | xargs rm -rf && \
+		echo "Packing checkout..." && \
+		$(call dl_pack,$(TMP_DIR)/dl/$(FILE),$(SUBDIR)) && \
+		mv $(TMP_DIR)/dl/$(FILE) $(DL_DIR)/; \
+	)
+endef
+
+Validate/svn=VERSION SUBDIR
+#Validate/git=VERSION SUBDIR
+
+define Download/Defaults
+  URL:=
+  FILE:=
+  PROTO:=
+  MD5SUM:=
+  SUBDIR:=
+  VERSION:=
+endef
+
+define Download
+  $(eval $(Download/Defaults))
+  $(eval $(Download/$(1)))
+  $(foreach FIELD,URL FILE $(Validate/$(call dl_method,$(URL),$(PROTO))),
+    ifeq ($($(FIELD)),)
+      $$(error Download/$(1) is missing the $(FIELD) field.)
+    endif
+  )
+
+  $(if $(DOWNLOAD_RDEP),$(DOWNLOAD_RDEP): $(DL_DIR)/$(FILE))
+  download: $(DL_DIR)/$(FILE)
+
+  $(DL_DIR)/$(FILE):
+	mkdir -p $(DL_DIR)
+	$(if $(DownloadMethod/$(call dl_method,$(URL),$(PROTO))),$(DownloadMethod/$(call dl_method,$(URL),$(PROTO))),$(DownloadMethod/unknown))
+
+endef