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legal-info: allow to declare the actual sources for binary packages

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The FOO_SITE/FOO_SOURCE variables usually point to a tarball containing
source code.

For the downloaded external toolchains this is not true, the "source"
tarball actually contains binaries. This is fine for making Buildroot
work, but for legal-info we really want to ship real source code, not
binaries.

Luckily, some (hopefully all) toolchain vendors publish a downloadable
tarball containing the source code counterpart for their binary
packages.

Here we allow the user to declare the URL of this other tarball in the
pair of variables FOO_ACTUAL_SOURCE_TARBALL (by default equal to
FOO_SOURCE) and FOO_ACTUAL_SOURCE_SITE (by default equal to FOO_SITE).
If the "actual source" package can be downloaded from the same
directory as the binary package, then only FOO_ACTUAL_SOURCE_TARBALL
needs to be set.

Note this change is not strictly toolchain-specific: it might be useful
for other packages that happen to ship binaries in the same way.

[Thomas:
  - remove "the source code has not been saved" warning that could
    never be triggered due to how the conditions were
    organized. Discussed with Luca live during the meeting.]

Signed-off-by: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Thomas De Schampheleire <patrickdepinguin@gmail.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
This commit is contained in:
Luca Ceresoli
2015-10-03 23:18:18 +02:00
committed by Thomas Petazzoni
parent 8b69e6c542
commit b9f4727ff4
2 changed files with 14 additions and 6 deletions
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19
package/pkg-generic.mk
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@@ -708,12 +708,18 @@ ifneq ($$($(2)_SITE_METHOD),local)
ifneq ($$($(2)_SITE_METHOD),override)
# Packages that have a tarball need it downloaded beforehand
$(1)-legal-info: $(1)-source $$(REDIST_SOURCES_DIR_$$(call UPPERCASE,$(4)))
$(2)_MANIFEST_TARBALL = $$($(2)_SOURCE)
$(2)_MANIFEST_SITE = $$(call qstrip,$$($(2)_SITE))
endif
endif
endif
# If FOO_ACTUAL_SOURCE_TARBALL is explicitly defined, it means FOO_SOURCE is
# indeed a binary (e.g. external toolchain) and FOO_ACTUAL_SOURCE_TARBALL/_SITE
# point to the actual sources tarball. Use the actual sources for legal-info.
# For most packages the FOO_SITE/FOO_SOURCE pair points to real source code,
# so these are the defaults for FOO_ACTUAL_*.
$(2)_ACTUAL_SOURCE_TARBALL ?= $$($(2)_SOURCE)
$(2)_ACTUAL_SOURCE_SITE ?= $$(call qstrip,$$($(2)_SITE))
# legal-info: produce legally relevant info.
$(1)-legal-info:
# Packages without a source are assumed to be part of Buildroot, skip them.
@@ -744,13 +750,16 @@ else
# Other packages
ifeq ($$($(2)_REDISTRIBUTE),YES)
ifneq ($$($(2)_ACTUAL_SOURCE_TARBALL),$$($(2)_SOURCE))
$(call DOWNLOAD,$$($(2)_ACTUAL_SOURCE_SITE)/$$($(2)_ACTUAL_SOURCE_TARBALL))
endif
# Copy the source tarball (just hardlink if possible)
@cp -l $$(DL_DIR)/$$($(2)_SOURCE) $$(REDIST_SOURCES_DIR_$$(call UPPERCASE,$(4))) 2>/dev/null || \
cp $$(DL_DIR)/$$($(2)_SOURCE) $$(REDIST_SOURCES_DIR_$$(call UPPERCASE,$(4)))
@cp -l $$(DL_DIR)/$$($(2)_ACTUAL_SOURCE_TARBALL) $$(REDIST_SOURCES_DIR_$$(call UPPERCASE,$(4))) 2>/dev/null || \
cp $$(DL_DIR)/$$($(2)_ACTUAL_SOURCE_TARBALL) $$(REDIST_SOURCES_DIR_$$(call UPPERCASE,$(4)))
endif # redistribute
endif # other packages
@$$(call legal-manifest,$$($(2)_RAWNAME),$$($(2)_VERSION),$$($(2)_LICENSE),$$($(2)_MANIFEST_LICENSE_FILES),$$($(2)_MANIFEST_TARBALL),$$($(2)_MANIFEST_SITE),$$(call UPPERCASE,$(4)))
@$$(call legal-manifest,$$($(2)_RAWNAME),$$($(2)_VERSION),$$($(2)_LICENSE),$$($(2)_MANIFEST_LICENSE_FILES),$$($(2)_ACTUAL_SOURCE_TARBALL),$$($(2)_ACTUAL_SOURCE_SITE),$$(call UPPERCASE,$(4)))
endif # ifneq ($$(call qstrip,$$($(2)_SOURCE)),)
$$(foreach hook,$$($(2)_POST_LEGAL_INFO_HOOKS),$$(call $$(hook))$$(sep))