download.mk: improve download tarball reproducibility

[openwrt/staging/wigyori.git] / include / download.mk

diff --git a/include/download.mk b/include/download.mk
index d1d2027bb1e39d85dc712a0e2f61784532be9b3d..3c6b4a20cf3dc349ea594846b7deb7c649cbc1d1 100644 (file)
--- a/include/download.mk
+++ b/include/download.mk
@@ -7,6 +7,7 @@
 #
 
 OPENWRT_GIT = http://git.openwrt.org
+LEDE_GIT = https://git.lede-project.org
 
 DOWNLOAD_RDEP=$(STAMP_PREPARED) $(HOST_STAMP_PREPARED)
 
@@ -32,13 +33,16 @@ $(strip \
 endef
 
 # code for creating tarballs from cvs/svn/git/bzr/hg/darcs checkouts - useful for mirror support
-dl_pack/bz2=$(TAR) cjf $(1) $(2)
-dl_pack/gz=$(TAR) czf $(1) $(2)
-dl_pack/xz=$(TAR) c $(2) | xz -zc > $(1)
-dl_pack/unknown=echo "ERROR: Unknown pack format for file $(1)"; false
+dl_pack/bz2=bzip2 -c > $(1)
+dl_pack/gz=gzip -nc > $(1)
+dl_pack/xz=xz -zc -7e > $(1)
+dl_pack/unknown=$(error ERROR: Unknown pack format for file $(1))
 define dl_pack
        $(if $(dl_pack/$(call ext,$(1))),$(dl_pack/$(call ext,$(1))),$(dl_pack/unknown))
 endef
+define dl_tar_pack
+       $(TAR) --numeric-owner --owner=0 --group=0 --sort=name $$$${TAR_TIMESTAMP:+--mtime="$$$$TAR_TIMESTAMP"} -c $(2) | $(call dl_pack,$(1))
+endef
 
 define DownloadMethod/unknown
        @echo "ERROR: No download method available"; false
@@ -61,7 +65,7 @@ define DownloadMethod/cvs
                [ \! -d $(SUBDIR) ] && \
                cvs -d $(URL) export $(VERSION) $(SUBDIR) && \
                echo "Packing checkout..." && \
-               $(call dl_pack,$(TMP_DIR)/dl/$(FILE),$(SUBDIR)) && \
+               $(call dl_tar_pack,$(TMP_DIR)/dl/$(FILE),$(SUBDIR)) && \
                mv $(TMP_DIR)/dl/$(FILE) $(DL_DIR)/ && \
                rm -rf $(SUBDIR); \
        )
@@ -78,7 +82,8 @@ define DownloadMethod/svn
                svn export --non-interactive --trust-server-cert -r$(VERSION) $(URL) $(SUBDIR) || \
                svn export --non-interactive -r$(VERSION) $(URL) $(SUBDIR) ) && \
                echo "Packing checkout..." && \
-               $(call dl_pack,$(TMP_DIR)/dl/$(FILE),$(SUBDIR)) && \
+               export TAR_TIMESTAMP="" && \
+               $(call dl_tar_pack,$(TMP_DIR)/dl/$(FILE),$(SUBDIR)) && \
                mv $(TMP_DIR)/dl/$(FILE) $(DL_DIR)/ && \
                rm -rf $(SUBDIR); \
        )
@@ -91,12 +96,13 @@ define DownloadMethod/git
                cd $(TMP_DIR)/dl && \
                rm -rf $(SUBDIR) && \
                [ \! -d $(SUBDIR) ] && \
-               git clone $(URL) $(SUBDIR) && \
+               git clone $(OPTS) $(URL) $(SUBDIR) && \
                (cd $(SUBDIR) && git checkout $(VERSION) && \
                git submodule update --init --recursive) && \
                echo "Packing checkout..." && \
+               export TAR_TIMESTAMP=`cd $(SUBDIR) && git log -1 --format='@%ct'` && \
                rm -rf $(SUBDIR)/.git && \
-               $(call dl_pack,$(TMP_DIR)/dl/$(FILE),$(SUBDIR)) && \
+               $(call dl_tar_pack,$(TMP_DIR)/dl/$(FILE),$(SUBDIR)) && \
                mv $(TMP_DIR)/dl/$(FILE) $(DL_DIR)/ && \
                rm -rf $(SUBDIR); \
        )
@@ -109,9 +115,10 @@ define DownloadMethod/bzr
                cd $(TMP_DIR)/dl && \
                rm -rf $(SUBDIR) && \
                [ \! -d $(SUBDIR) ] && \
-               bzr export -r$(VERSION) $(SUBDIR) $(URL) && \
+               bzr export --per-file-timestamps -r$(VERSION) $(SUBDIR) $(URL) && \
                echo "Packing checkout..." && \
-               $(call dl_pack,$(TMP_DIR)/dl/$(FILE),$(SUBDIR)) && \
+               export TAR_TIMESTAMP="" && \
+               $(call dl_tar_pack,$(TMP_DIR)/dl/$(FILE),$(SUBDIR)) && \
                mv $(TMP_DIR)/dl/$(FILE) $(DL_DIR)/ && \
                rm -rf $(SUBDIR); \
        )
@@ -125,9 +132,10 @@ define DownloadMethod/hg
                rm -rf $(SUBDIR) && \
                [ \! -d $(SUBDIR) ] && \
                hg clone -r $(VERSION) $(URL) $(SUBDIR) && \
+               export TAR_TIMESTAMP=`cd $(SUBDIR) && hg log --template '@{date}' -l 1` && \
                find $(SUBDIR) -name .hg | xargs rm -rf && \
                echo "Packing checkout..." && \
-               $(call dl_pack,$(TMP_DIR)/dl/$(FILE),$(SUBDIR)) && \
+               $(call dl_tar_pack,$(TMP_DIR)/dl/$(FILE),$(SUBDIR)) && \
                mv $(TMP_DIR)/dl/$(FILE) $(DL_DIR)/ && \
                rm -rf $(SUBDIR); \
        )
@@ -141,9 +149,10 @@ define DownloadMethod/darcs
                rm -rf $(SUBDIR) && \
                [ \! -d $(SUBDIR) ] && \
                darcs get -t $(VERSION) $(URL) $(SUBDIR) && \
+               export TAR_TIMESTAMP=`cd $(SUBDIR) && LC_ALL=C darcs log --last 1 | sed -ne 's!^Date: \+!!p'` && \
                find $(SUBDIR) -name _darcs | xargs rm -rf && \
                echo "Packing checkout..." && \
-               $(call dl_pack,$(TMP_DIR)/dl/$(FILE),$(SUBDIR)) && \
+               $(call dl_tar_pack,$(TMP_DIR)/dl/$(FILE),$(SUBDIR)) && \
                mv $(TMP_DIR)/dl/$(FILE) $(DL_DIR)/ && \
                rm -rf $(SUBDIR); \
        )
@@ -166,6 +175,7 @@ define Download/Defaults
   MIRROR:=1
   MIRROR_MD5SUM:=x
   VERSION:=
+  OPTS:=
 endef
 
 define Download