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image-postinst-intercepts.bbclass: add class

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This class sets POSTINST_INTERCEPTS and POSTINST_INTERCEPTS_CHECKSUMS,
to allow us to pull intercepts from BBPATH. This is kept as a separate
class, as it's needed by both image construction and sdk construction,
the latter to support meta-toolchain & similar recipes.

(From OE-Core rev: 7a2044df4ae8d80cf25a6bfd9b71978ffefbfa33)

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Christopher Larson 2018-07-27 22:24:28 +05:00 committed by Richard Purdie
parent 85518a2001
commit bb3a1321cd
1 changed files with 23 additions and 0 deletions
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meta/classes/image-postinst-intercepts.bbclass Normal file
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# Gather existing and candidate postinst intercepts from BBPATH
POSTINST_INTERCEPTS_DIR ?= "${COREBASE}/scripts/postinst-intercepts"
POSTINST_INTERCEPTS_PATHS ?= "${@':'.join('%s/postinst-intercepts' % p for p in '${BBPATH}'.split(':'))}:${POSTINST_INTERCEPTS_DIR}"
python find_intercepts() {
intercepts = {}
search_paths = []
paths = d.getVar('POSTINST_INTERCEPTS_PATHS').split(':')
overrides = (':' + d.getVar('FILESOVERRIDES')).split(':') + ['']
search_paths = [os.path.join(p, op) for p in paths for op in overrides]
searched = oe.path.which_wild('*', ':'.join(search_paths), candidates=True)
files, chksums = [], []
for pathname, candidates in searched:
if os.path.isfile(pathname):
files.append(pathname)
chksums.append('%s:True' % pathname)
chksums.extend('%s:False' % c for c in candidates[:-1])
d.setVar('POSTINST_INTERCEPT_CHECKSUMS', ' '.join(chksums))
d.setVar('POSTINST_INTERCEPTS', ' '.join(files))
}
find_intercepts[eventmask] += "bb.event.RecipePreFinalise"
addhandler find_intercepts