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lib/oe/lsb: better handle missing fields 

Some rolling release distros, such as Arch Linux, don't include a
VERSION_ID field in their os-release file.

Change release_dict_osr() to better handle this optional field
being absent.

Further improve the resilience of the release_dict_*() methods by
always returning a dict and using dict.get() in distro_identifier()
to supply a default, empty string, value when then key is missing.

(From OE-Core rev: e36066dcc3b56cac1c695370ea178b566c0ebfd6)

Signed-off-by: Joshua Lock <joshua.g.lock@intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Joshua Lock 2016-11-15 22:08:54 +00:00 committed by Richard Purdie
parent 4bc5353c92
commit 333d300fba
1 changed files with 5 additions and 8 deletions
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13
meta/lib/oe/lsb.py
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@ -15,9 +15,6 @@ def release_dict_osr():
if key == 'VERSION_ID':
data['DISTRIB_RELEASE'] = val.strip('"')
if len(data.keys()) != 2:
return None
return data
def release_dict_lsb():
@ -27,7 +24,7 @@ def release_dict_lsb():
try:
output, err = bb.process.run(['lsb_release', '-ir'], stderr=PIPE)
except bb.process.CmdError as exc:
return None
return {}
lsb_map = { 'Distributor ID': 'DISTRIB_ID',
'Release': 'DISTRIB_RELEASE'}
@ -51,7 +48,7 @@ def release_dict_lsb():
def release_dict_file():
""" Try to gather release information manually when other methods fail """
data = None
data = {}
try:
if os.path.exists('/etc/lsb-release'):
data = {}
@ -78,7 +75,7 @@ def release_dict_file():
break
except IOError:
return None
return {}
return data
def distro_identifier(adjust_hook=None):
@ -96,8 +93,8 @@ def distro_identifier(adjust_hook=None):
if not distro_data:
distro_data = release_dict_file()
distro_id = distro_data['DISTRIB_ID']
release = distro_data['DISTRIB_RELEASE']
distro_id = distro_data.get('DISTRIB_ID', '')
release = distro_data.get('DISTRIB_RELEASE', '')
if adjust_hook:
distro_id, release = adjust_hook(distro_id, release)