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authorMariano Lopez <just.another.mariano@gmail.com>2019-04-09 00:44:12 -0500
committerRichard Purdie <richard.purdie@linuxfoundation.org>2019-04-11 21:12:48 +0100
commit5feccb430bfc56e278f2e3bab87b87ea9973e08f (patch)
treed10e90ac4aa13af816eec4ba8bbc379e0340be2c
parent4e511f0abc2c9cdd0d1592e50ade0d4da0c6dbb8 (diff)
downloadpoky-5feccb430bfc56e278f2e3bab87b87ea9973e08f.tar.gz
update-alternatives.bbclass: Add function to get metadata
This adds update_alternatives_alt_targets function to get the metadata for a package. This is for code reuse because the metadata would help other classes that needs to be aware of how update-alternatives modify the final package. [YOCTO #12597] [YOCTO #13238] (From OE-Core rev: 04d966c0a91c5e16555bba827969a0a2fd96bb96) Signed-off-by: Mariano Lopez <just.another.mariano@gmail.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
-rw-r--r--meta/classes/update-alternatives.bbclass70
1 files changed, 45 insertions, 25 deletions
diff --git a/meta/classes/update-alternatives.bbclass b/meta/classes/update-alternatives.bbclass
index 537e85d9a3..b702e77ee5 100644
--- a/meta/classes/update-alternatives.bbclass
+++ b/meta/classes/update-alternatives.bbclass
@@ -216,42 +216,62 @@ python apply_update_alternative_renames () {
216 update_files(alt_target, alt_target_rename, pkg, d) 216 update_files(alt_target, alt_target_rename, pkg, d)
217} 217}
218 218
219def update_alternatives_alt_targets(d, pkg):
220 """
221 Returns the update-alternatives metadata for a package.
222
223 The returned format is a list of tuples where the tuple contains:
224 alt_name: The binary name
225 alt_link: The path for the binary (Shared by different packages)
226 alt_target: The path for the renamed binary (Unique per package)
227 alt_priority: The priority of the alt_target
228
229 All the alt_targets will be installed into the sysroot. The alt_link is
230 a symlink pointing to the alt_target with the highest priority.
231 """
232
233 pn = d.getVar('BPN')
234 pkgdest = d.getVar('PKGD')
235 updates = list()
236 for alt_name in (d.getVar('ALTERNATIVE_%s' % pkg) or "").split():
237 alt_link = d.getVarFlag('ALTERNATIVE_LINK_NAME', alt_name)
238 alt_target = d.getVarFlag('ALTERNATIVE_TARGET_%s' % pkg, alt_name) or \
239 d.getVarFlag('ALTERNATIVE_TARGET', alt_name) or \
240 d.getVar('ALTERNATIVE_TARGET_%s' % pkg) or \
241 d.getVar('ALTERNATIVE_TARGET') or \
242 alt_link
243 alt_priority = d.getVarFlag('ALTERNATIVE_PRIORITY_%s' % pkg, alt_name) or \
244 d.getVarFlag('ALTERNATIVE_PRIORITY', alt_name) or \
245 d.getVar('ALTERNATIVE_PRIORITY_%s' % pkg) or \
246 d.getVar('ALTERNATIVE_PRIORITY')
247
248 # This shouldn't trigger, as it should have been resolved earlier!
249 if alt_link == alt_target:
250 bb.note('alt_link == alt_target: %s == %s -- correcting, this should not happen!' % (alt_link, alt_target))
251 alt_target = '%s.%s' % (alt_target, pn)
252
253 if not os.path.lexists('%s/%s' % (pkgdest, alt_target)):
254 bb.warn('%s: NOT adding alternative provide %s: %s does not exist' % (pn, alt_link, alt_target))
255 continue
256
257 alt_target = os.path.normpath(alt_target)
258 updates.append( (alt_name, alt_link, alt_target, alt_priority) )
259
260 return updates
261
219PACKAGESPLITFUNCS_prepend = "populate_packages_updatealternatives " 262PACKAGESPLITFUNCS_prepend = "populate_packages_updatealternatives "
220 263
221python populate_packages_updatealternatives () { 264python populate_packages_updatealternatives () {
222 if not update_alternatives_enabled(d): 265 if not update_alternatives_enabled(d):
223 return 266 return
224 267
225 pn = d.getVar('BPN')
226
227 # Do actual update alternatives processing 268 # Do actual update alternatives processing
228 pkgdest = d.getVar('PKGD')
229 for pkg in (d.getVar('PACKAGES') or "").split(): 269 for pkg in (d.getVar('PACKAGES') or "").split():
230 # Create post install/removal scripts 270 # Create post install/removal scripts
231 alt_setup_links = "" 271 alt_setup_links = ""
232 alt_remove_links = "" 272 alt_remove_links = ""
233 for alt_name in (d.getVar('ALTERNATIVE_%s' % pkg) or "").split(): 273 updates = update_alternatives_alt_targets(d, pkg)
234 alt_link = d.getVarFlag('ALTERNATIVE_LINK_NAME', alt_name) 274 for alt_name, alt_link, alt_target, alt_priority in updates:
235 alt_target = d.getVarFlag('ALTERNATIVE_TARGET_%s' % pkg, alt_name) or d.getVarFlag('ALTERNATIVE_TARGET', alt_name)
236 alt_target = alt_target or d.getVar('ALTERNATIVE_TARGET_%s' % pkg) or d.getVar('ALTERNATIVE_TARGET') or alt_link
237 # Sometimes alt_target is specified as relative to the link name.
238 alt_target = os.path.join(os.path.dirname(alt_link), alt_target)
239
240 alt_priority = d.getVarFlag('ALTERNATIVE_PRIORITY_%s' % pkg, alt_name) or d.getVarFlag('ALTERNATIVE_PRIORITY', alt_name)
241 alt_priority = alt_priority or d.getVar('ALTERNATIVE_PRIORITY_%s' % pkg) or d.getVar('ALTERNATIVE_PRIORITY')
242
243 # This shouldn't trigger, as it should have been resolved earlier!
244 if alt_link == alt_target:
245 bb.note('alt_link == alt_target: %s == %s -- correcting, this should not happen!' % (alt_link, alt_target))
246 alt_target = '%s.%s' % (alt_target, pn)
247
248 if not os.path.lexists('%s/%s' % (pkgdest, alt_target)):
249 bb.warn('%s: NOT adding alternative provide %s: %s does not exist' % (pn, alt_link, alt_target))
250 continue
251
252 # Default to generate shell script.. eventually we may want to change this...
253 alt_target = os.path.normpath(alt_target)
254
255 alt_setup_links += '\tupdate-alternatives --install %s %s %s %s\n' % (alt_link, alt_name, alt_target, alt_priority) 275 alt_setup_links += '\tupdate-alternatives --install %s %s %s %s\n' % (alt_link, alt_name, alt_target, alt_priority)
256 alt_remove_links += '\tupdate-alternatives --remove %s %s\n' % (alt_name, alt_target) 276 alt_remove_links += '\tupdate-alternatives --remove %s %s\n' % (alt_name, alt_target)
257 277