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|
.PHONY: backports $(KNOWN_BACKPORTS)
# error out if these files are missing
required_files = $(foreach backport,$(KNOWN_BACKPORTS), \
$(addprefix debian/backports/$(backport)/, \
debian/source/format \
versionext \
exclude))
$(if $(filter-out $(wildcard $(required_files)),$(required_files)), \
$(error missing required backports files: \
$(filter-out $(wildcard $(required_files)),$(required_files)). \
see debian/backports/README) \
)
TARBALLDIR ?= $(shell dh_testdir debian/changelog && realpath ../)
define backports-targets
# if this file is empty, no automatic changelog entry is created
VERSIONEXT_$(1) ?= $(strip \
$(shell cat $(wildcard debian/backports/$(1)/versionext)))
DEBIAN_VERSION_$(1) = $(DEBIAN_VERSION)$$(VERSIONEXT_$(1))
BACKPORTDIR_$(1) = $(realpath debian/backports/$(1))
# as of right now, must be '3.0 (quilt)'
SOURCEFORMAT_$(1) ?= $(strip \
$(shell cat debian/backports/$(1)/debian/source/format))
# files checked for the dirhash (see below)
FINDCMD_$(1) = find debian/backports/$(1)/debian \
-type f \
! -path debian/backports/$(1)/debian/changelog
# files *not* pulled from the root debian directory into the backport tarball:
# debian/changelog (copied and edited for backport version entry)
# debian/backports itself (relevant contents are copied out separately)
# anything provided in the current backports debian dir
# anything specified in the 'exclude' file in the current backports debian dir
EXCLUDEROOT_$(1) = debian/changelog debian/backports \
$$(subst debian/backports/$(1)/,,$$(shell $$(FINDCMD_$(1)))) \
$$(shell cat debian/backports/$(1)/exclude)
EXCLUDEROOT_TAR_$(1) = $$(foreach file,$$(EXCLUDEROOT_$(1)),--exclude $$(file))
EXCLUDEROOT_FIND_$(1) = $$(foreach file,$$(EXCLUDEROOT_$(1)),-o -path $$(file))
# find command resulting in all files that *will* be pulled into the backport
# tarball.
FINDCMDROOT_$(1) = find debian/ \
'(' -false $$(EXCLUDEROOT_FIND_$(1)) ')' -prune -o \
-type f -a '!' '(' -false $$(EXCLUDEROOT_FIND_$(1)) ')'
# usually using `find' output for dependencies has the downfall of not tracking
# file removal. Work around that by introducing a dependency on a file whose
# name contains the hash of `find' output, so that the name will change when a
# file is deleted.
DIRHASH_$(1) = \
$$(shell $$(FINDCMD_$(1)) | sha1sum | sed -r 's/^(......).*/\1/')
DIRHASHROOT_$(1) = \
$$(shell $$(FINDCMDROOT_$(1)) | sha1sum | sed -r 's/^(......).*/\1/')
CONTROL_$(1) = $$(strip \
$$(if $$(wildcard $$(BACKPORTDIR_$(1))/debian/control), \
$$(BACKPORTDIR_$(1))/debian/control, \
$(realpath debian/control) \
))
# TARGETS:
$(1): $(TARBALLDIR)/$(SRCPKG)_$$(DEBIAN_VERSION_$(1)).dsc ;
# we use 3.0 (custom) to build a source package directly from tarballs,
# bypassing the usual checks (which wouldn't like our combination-of-
# directories approach)
$(TARBALLDIR)/$(SRCPKG)_$$(DEBIAN_VERSION_$(1)).dsc:
# -b directory unused (but required) for '3.0 (custom)' source format
dpkg-source -l$$(BACKPORTDIR_$(1))/debian/changelog \
-c$$(CONTROL_$(1)) \
--format='3.0 (custom)' \
--target-format='$$(SOURCEFORMAT_$(1))' \
--build . $$^
ifeq ($$(SOURCEFORMAT_$(1)),3.0 (quilt))
# this target depends on the orig.tar.gz file, for which there is no target in
# this makefile. It is assumed to either already exist or be built by a target
# provided elsewhere in debian/rules (e.g. via pristine-tar)
$(TARBALLDIR)/$(SRCPKG)_$$(DEBIAN_VERSION_$(1)).dsc: \
$(TARBALLDIR)/$(SRCPKG)_$(ORIG_VERSION).orig.tar.gz \
$(TARBALLDIR)/$(SRCPKG)_$$(DEBIAN_VERSION_$(1)).debian.tar.xz
else
$$(error unsupported source format for $(1) backport: $$(SOURCEFORMAT_$(1)))
endif #SOURCEFORMAT_$(1)
# for 3.0 (quilt)
$(TARBALLDIR)/$(SRCPKG)_$$(DEBIAN_VERSION_$(1)).debian.tar.xz: \
$$(BACKPORTDIR_$(1))/debian/changelog \
$$(shell $$(FINDCMD_$(1))) \
$$(BACKPORTDIR_$(1))/$$(DIRHASH_$(1)).backport.dirhash \
$$(shell $$(FINDCMDROOT_$(1))) \
$$(BACKPORTDIR_$(1))/$$(DIRHASHROOT_$(1)).root.dirhash \
$$(BACKPORTDIR_$(1))/exclude
rm -f $$(subst .tar.xz,.tar,$$@) $$@
tar -cf $$(subst .tar.xz,.tar,$$@) \
--exclude-vcs $$(EXCLUDEROOT_TAR_$(1)) debian/
cd debian/backports/$(1) && tar -uf $$(subst .tar.xz,.tar,$$@) \
--exclude-vcs debian/
xz $$(subst .tar.xz,.tar,$$@)
$$(BACKPORTDIR_$(1))/debian/changelog: \
debian/changelog \
debian/backports/$(1)/versionext
rm -f debian/backports/$(1)/debian/changelog
cp $$< $$@
$(if $$(VERSIONEXT_$(1)), \
dch -c $$@ -v '$$(DEBIAN_VERSION_$(1))' -b \
'backport to $(1) systems', \
)
$$(BACKPORTDIR_$(1))/$$(DIRHASH_$(1)).backport.dirhash:
rm -f debian/backports/$(1)/*.backport.dirhash
touch $$@
$$(BACKPORTDIR_$(1))/$$(DIRHASHROOT_$(1)).root.dirhash:
rm -f debian/backports/$(1)/*.root.dirhash
touch $$@
endef # backports-targets
$(foreach backport,$(KNOWN_BACKPORTS),$(eval \
$(call backports-targets,$(backport))))
backports: $(KNOWN_BACKPORTS)
|
