openwrt/include/download.mk
Yousong Zhou 75ab064d2b build: download code from github using archive API
A new python script scripts/download.py is added to fetch tarballs using
GitHub archive API [1], then repack in a reproducible way same as the
current DownloadMethod/git

GitHub imposes a 60 reqs/hour rate limit on unauthenticated API
access[2].  This affects fetching commit date for feeding tar --mtime=
argument.  However, observation indicates that archive download is NOT
subject to this limit at the moment.  In the rare cases where download
fails because of this, we will falback to using DownloadMethod/git

The missing piece in the GitHub API is that it cannot provide in the
tarball dependent submodules's source code.  In that case, the
implementation will also fallback to using DownloadMethod/git

 [1] Get archive link, https://developer.github.com/v3/repos/contents/#get-archive-link
 [2] Rate limiting, https://developer.github.com/v3/#rate-limiting

v2 <- v1:

 - allow passing multiple urls with --urls argument
 - add commit ts cache.  can be helpful on retry

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>
2018-06-27 10:51:27 +08:00

300 lines
9.2 KiB
Makefile

#
# Copyright (C) 2006-2012 OpenWrt.org
# Copyright (C) 2016 LEDE project
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
PROJECT_GIT = https://git.openwrt.org
OPENWRT_GIT = $(PROJECT_GIT)
LEDE_GIT = $(PROJECT_GIT)
ifdef PKG_SOURCE_VERSION
PKG_VERSION ?= $(if $(PKG_SOURCE_DATE),$(PKG_SOURCE_DATE)-)$(call version_abbrev,$(PKG_SOURCE_VERSION))
PKG_SOURCE_SUBDIR ?= $(PKG_NAME)-$(PKG_VERSION)
PKG_SOURCE ?= $(PKG_SOURCE_SUBDIR).tar.xz
endif
DOWNLOAD_RDEP=$(STAMP_PREPARED) $(HOST_STAMP_PREPARED)
# Try to guess the download method from the URL
define dl_method
$(shell $(SCRIPT_DIR)/download.py dl_method --url $(foreach url,$(1),"$(url)") --proto="$(2)")
endef
# code for creating tarballs from cvs/svn/git/bzr/hg/darcs checkouts - useful for mirror support
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
ifdef CHECK
check_escape=$(subst ','\'',$(1))
#')
# $(1): suffix of the F_, C_ variables, e.g. hash_deprecated, hash_mismatch, etc.
# $(2): filename
# $(3): expected hash value
# $(4): hash var name: MD5SUM, HASH
check_warn_nofix = $(info $(shell printf "$(_R)WARNING: %s$(_N)" '$(call check_escape,$(call C_$(1),$(2),$(3),$(4)))'))
ifndef FIXUP
check_warn = $(check_warn_nofix)
else
check_warn = $(if $(filter-out undefined,$(origin F_$(1))),$(filter ,$(shell $(call F_$(1),$(2),$(3),$(4)) >&2)),$(check_warn_nofix))
endif
gen_sha256sum = $(shell mkhash sha256 $(DL_DIR)/$(1))
ifdef FIXUP
F_hash_deprecated = $(SCRIPT_DIR)/fixup-makefile.pl $(CURDIR)/Makefile fix-hash $(3) $(call gen_sha256sum,$(1)) $(2)
F_hash_mismatch = $(F_hash_deprecated)
F_hash_missing = $(SCRIPT_DIR)/fixup-makefile.pl $(CURDIR)/Makefile add-hash $(3) $(call gen_sha256sum,$(1))
endif
# $(1): filename
# $(2): expected hash value
# $(3): hash var name: MD5SUM, HASH
C_download_missing = $(1) is missing, please run make download before re-running this check
C_hash_mismatch = $(3) does not match $(1) hash $(call gen_sha256sum,$(1))
C_hash_deprecated = $(3) uses deprecated hash, set to $(call gen_sha256sum,$(1))
C_hash_missing = $(3) is missing, set to $(call gen_sha256sum,$(1))
check_hash = \
$(if $(wildcard $(DL_DIR)/$(1)), \
$(if $(filter-out x,$(2)), \
$(if $(filter 64,$(shell printf '%s' '$(2)' | wc -c)), \
$(if $(filter $(2),$(call gen_sha256sum,$(1))),, \
$(call check_warn,hash_mismatch,$(1),$(2),$(3)) \
), \
$(call check_warn,hash_deprecated,$(1),$(2),$(3)), \
), \
$(call check_warn,hash_missing,$(1),$(2),$(3)) \
), \
$(call check_warn,download_missing,$(1),$(2),$(3)) \
)
ifdef FIXUP
F_md5_deprecated = $(SCRIPT_DIR)/fixup-makefile.pl $(CURDIR)/Makefile rename-var $(2) $(3)
endif
C_md5_deprecated = Use of $(2) is deprecated, switch to $(3)
check_md5 = \
$(if $(filter-out x,$(1)), \
$(call check_warn,md5_deprecated,$(1),$(2),$(3)) \
)
hash_var = $(if $(filter-out x,$(1)),MD5SUM,HASH)
endif
define DownloadMethod/unknown
echo "ERROR: No download method available"; false
endef
define DownloadMethod/default
$(SCRIPT_DIR)/download.pl "$(DL_DIR)" "$(FILE)" "$(HASH)" "$(URL_FILE)" $(foreach url,$(URL),"$(url)") \
$(if $(filter check,$(1)), \
$(call check_hash,$(FILE),$(HASH),$(2)$(call hash_var,$(MD5SUM))) \
$(call check_md5,$(MD5SUM),$(2)MD5SUM,$(2)HASH) \
)
endef
# $(1): "check"
# $(2): "PKG_" if <name> as in Download/<name> is "default", otherwise "Download/<name>:"
# $(3): shell command sequence to do the download
define wrap_mirror
$(if $(if $(MIRROR),$(filter-out x,$(MIRROR_HASH))),$(SCRIPT_DIR)/download.pl "$(DL_DIR)" "$(FILE)" "$(MIRROR_HASH)" "" || ( $(3) ),$(3)) \
$(if $(filter check,$(1)), \
$(call check_hash,$(FILE),$(MIRROR_HASH),$(2)MIRROR_$(call hash_var,$(MIRROR_MD5SUM))) \
$(call check_md5,$(MIRROR_MD5SUM),$(2)MIRROR_MD5SUM,$(2)MIRROR_HASH) \
)
endef
define DownloadMethod/cvs
$(call wrap_mirror,$(1),$(2), \
echo "Checking out files from the cvs repository..."; \
mkdir -p $(TMP_DIR)/dl && \
cd $(TMP_DIR)/dl && \
rm -rf $(SUBDIR) && \
[ \! -d $(SUBDIR) ] && \
cvs -d $(URL) export $(VERSION) $(SUBDIR) && \
echo "Packing checkout..." && \
$(call dl_tar_pack,$(TMP_DIR)/dl/$(FILE),$(SUBDIR)) && \
mv $(TMP_DIR)/dl/$(FILE) $(DL_DIR)/ && \
rm -rf $(SUBDIR); \
)
endef
define DownloadMethod/svn
$(call wrap_mirror,$(1),$(2), \
echo "Checking out files from the svn repository..."; \
mkdir -p $(TMP_DIR)/dl && \
cd $(TMP_DIR)/dl && \
rm -rf $(SUBDIR) && \
[ \! -d $(SUBDIR) ] && \
( svn help export | grep -q trust-server-cert && \
svn export --non-interactive --trust-server-cert -r$(VERSION) $(URL) $(SUBDIR) || \
svn export --non-interactive -r$(VERSION) $(URL) $(SUBDIR) ) && \
echo "Packing checkout..." && \
export TAR_TIMESTAMP="" && \
$(call dl_tar_pack,$(TMP_DIR)/dl/$(FILE),$(SUBDIR)) && \
mv $(TMP_DIR)/dl/$(FILE) $(DL_DIR)/ && \
rm -rf $(SUBDIR); \
)
endef
define DownloadMethod/git
$(call wrap_mirror,$(1),$(2), \
$(call DownloadMethod/git-raw) \
)
endef
define DownloadMethod/github-tarball
$(call wrap_mirror,$(1),$(2), \
$(SCRIPT_DIR)/download.py dl \
--dl-dir="$(DL_DIR)" \
--url $(foreach url,$(URL),"$(url)") \
--proto="$(PROTO)" \
--version="$(VERSION)" \
--subdir="$(SUBDIR)" \
--source="$(FILE)" \
|| ( $(call DownloadMethod/git-raw) ); \
)
endef
# Only intends to be called as a submethod from other DownloadMethod
define DownloadMethod/git-raw
echo "Checking out files from the git repository..."; \
mkdir -p $(TMP_DIR)/dl && \
cd $(TMP_DIR)/dl && \
rm -rf $(SUBDIR) && \
[ \! -d $(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_tar_pack,$(TMP_DIR)/dl/$(FILE),$(SUBDIR)) && \
mv $(TMP_DIR)/dl/$(FILE) $(DL_DIR)/ && \
rm -rf $(SUBDIR);
endef
define DownloadMethod/bzr
$(call wrap_mirror,$(1),$(2), \
echo "Checking out files from the bzr repository..."; \
mkdir -p $(TMP_DIR)/dl && \
cd $(TMP_DIR)/dl && \
rm -rf $(SUBDIR) && \
[ \! -d $(SUBDIR) ] && \
bzr export --per-file-timestamps -r$(VERSION) $(SUBDIR) $(URL) && \
echo "Packing checkout..." && \
export TAR_TIMESTAMP="" && \
$(call dl_tar_pack,$(TMP_DIR)/dl/$(FILE),$(SUBDIR)) && \
mv $(TMP_DIR)/dl/$(FILE) $(DL_DIR)/ && \
rm -rf $(SUBDIR); \
)
endef
define DownloadMethod/hg
$(call wrap_mirror,$(1),$(2), \
echo "Checking out files from the hg repository..."; \
mkdir -p $(TMP_DIR)/dl && \
cd $(TMP_DIR)/dl && \
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_tar_pack,$(TMP_DIR)/dl/$(FILE),$(SUBDIR)) && \
mv $(TMP_DIR)/dl/$(FILE) $(DL_DIR)/ && \
rm -rf $(SUBDIR); \
)
endef
define DownloadMethod/darcs
$(call wrap_mirror, $(1), $(2), \
echo "Checking out files from the darcs repository..."; \
mkdir -p $(TMP_DIR)/dl && \
cd $(TMP_DIR)/dl && \
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_tar_pack,$(TMP_DIR)/dl/$(FILE),$(SUBDIR)) && \
mv $(TMP_DIR)/dl/$(FILE) $(DL_DIR)/ && \
rm -rf $(SUBDIR); \
)
endef
Validate/cvs=VERSION SUBDIR
Validate/svn=VERSION SUBDIR
Validate/git=VERSION SUBDIR
Validate/bzr=VERSION SUBDIR
Validate/hg=VERSION SUBDIR
Validate/darcs=VERSION SUBDIR
define Download/Defaults
URL:=
FILE:=
URL_FILE:=
PROTO:=
HASH=$$(MD5SUM)
MD5SUM:=x
SUBDIR:=
MIRROR:=1
MIRROR_HASH=$$(MIRROR_MD5SUM)
MIRROR_MD5SUM:=x
VERSION:=
OPTS:=
endef
define Download/default
FILE:=$(PKG_SOURCE)
URL:=$(PKG_SOURCE_URL)
SUBDIR:=$(PKG_SOURCE_SUBDIR)
PROTO:=$(PKG_SOURCE_PROTO)
$(if $(PKG_SOURCE_MIRROR),MIRROR:=$(filter 1,$(PKG_MIRROR)))
$(if $(PKG_MIRROR_MD5SUM),MIRROR_MD5SUM:=$(PKG_MIRROR_MD5SUM))
$(if $(PKG_MIRROR_HASH),MIRROR_HASH:=$(PKG_MIRROR_HASH))
VERSION:=$(PKG_SOURCE_VERSION)
$(if $(PKG_MD5SUM),MD5SUM:=$(PKG_MD5SUM))
$(if $(PKG_HASH),HASH:=$(PKG_HASH))
endef
define Download
$(eval $(Download/Defaults))
$(eval $(Download/$(1)))
$(foreach FIELD,URL FILE $(Validate/$(call dl_method,$(URL),$(PROTO))),
ifeq ($($(FIELD)),)
$$(error Download/$(1) is missing the $(FIELD) field.)
endif
)
$(foreach dep,$(DOWNLOAD_RDEP),
$(dep): $(DL_DIR)/$(FILE)
)
download: $(DL_DIR)/$(FILE)
$(DL_DIR)/$(FILE):
mkdir -p $(DL_DIR)
$(call locked, \
$(if $(DownloadMethod/$(call dl_method,$(URL),$(PROTO))), \
$(call DownloadMethod/$(call dl_method,$(URL),$(PROTO)),check,$(if $(filter default,$(1)),PKG_,Download/$(1):)), \
$(DownloadMethod/unknown) \
),\
$(FILE))
endef