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