# Author: Patrick Ohly <patrick.ohly@intel.com>
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# Copyright: Copyright (C) 2015 Intel Corporation
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#
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# This file is licensed under the MIT license, see COPYING.MIT in
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# this source distribution for the terms.
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# This class is used like rm_work:
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# INHERIT += "rm_work_and_downloads"
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#
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# In addition to removing local build directories of a recipe, it also
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# removes the downloaded source. This is achieved by making the DL_DIR
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# recipe-specific. While reducing disk usage, it increases network usage (for
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# example, compiling the same source for target and host implies downloading
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# the source twice).
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#
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# Because the "do_fetch" task does not get re-run after removing the downloaded
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# sources, this class is also not suitable for incremental builds.
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#
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# Where it works well is in well-connected build environments with limited
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# disk space (like TravisCI).
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inherit rm_work
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# This would ensure that the existing do_rm_work() removes the downloads,
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# but does not work because some recipes have a circular dependency between
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# WORKDIR and DL_DIR (via ${SRCPV}?).
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# DL_DIR = "${WORKDIR}/downloads"
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# Instead go up one level and remove ourself.
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DL_DIR = "${BASE_WORKDIR}/${MULTIMACH_TARGET_SYS}/${PN}/downloads"
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do_rm_work:append () {
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rm -rf ${DL_DIR}
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}
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