archiver.bbclass: enhance do_ar_recipe task signature
Previously, do_ar_recipe ran again unnecessarily when adding or removing classes like buildhistory.bbclass, because that changes the BBINCLUDED variable which do_ar_recipe uses to find .bbappend files. This is both extra work and also sometimes triggered "basehash changed" errors (seen under oe-selftest, which adds machine.inc and bblayers.inc) because BBINCLUDED is special and does not cause the basehash to be recalculated. The file *content* already was not considered in the task signature, instead relying indirectly on PF (which includes the revision assigned by a PR server) to ensure that a new versioned source archive gets created each time there is a rebuild. Therefore it makes sense to use the same mechanism and also ignore the file *list*, i.e. exclude BBINCLUDED from the task signature. (From OE-Core rev: 9666f0e0b02efc14226c77497fd38f79fc372f98) (From OE-Core rev: f560bfe15d283c59094a0f7987fad10baad053b4) (From OE-Core rev: 62fbbf99de7b427d95f51d63039ab5a803209904) Signed-off-by: Patrick Ohly <patrick.ohly@intel.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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@ -330,6 +330,19 @@ python do_unpack_and_patch() {
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bb.utils.remove(src_orig, recurse=True)
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}
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# BBINCLUDED is special (excluded from basehash signature
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# calculation). Using it in a task signature can cause "basehash
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# changed" errors.
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#
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# Depending on BBINCLUDED also causes do_ar_recipe to run again
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# for unrelated changes, like adding or removing buildhistory.bbclass.
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#
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# For these reasons we ignore the dependency completely. The versioning
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# of the output file ensures that we create it each time the recipe
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# gets rebuilt, at least as long as a PR server is used. We also rely
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# on that mechanism to catch changes in the file content, because the
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# file content is not part of of the task signature either.
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do_ar_recipe[vardepsexclude] += "BBINCLUDED"
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python do_ar_recipe () {
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"""
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archive the recipe, including .bb and .inc.
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