I facing this issue while doing just
apt-add-repository -y 'ppa:hvr/ghc'
i.e. no `/ubungu` nor tilde. This is on Ubuntu 18.06, so maybe it's old
apt-add-repository which does some rewriting?
E.g. in fresh buildpack-deps:bionic Docker container this fails 100% of
the time
apt-get update
apt-get install -y --no-install-recommends gnupg ca-certificates dirmngr
curl git software-properties-common libtinfo5
apt-add-repository -y 'ppa:hvr/ghc'
Either with JSONDecodeError or with "Cannot add PPA:
'ppa:~hvr/ubuntu/ghc'."
EDIT: seems to work on focal.
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https://bugs.launchpad.net/bugs/2039411
Title:
Addition of ppa repository failing intermittently
Status in software-properties package in Ubuntu:
Confirmed
Bug description:
I get following error intermittently when trying to add ppa repository:
$ sudo add-apt-repository ppa:~longsleep/ubuntu/golang-backports
Cannot add PPA: 'ppa:~longsleep/ubuntu/golang-backports'.
The user named '~longsleep' has no PPA named 'ubuntu/golang-backports'
Please choose from the following available PPAs:
* 'bcmwl': bcmwl
* 'couchdb': Apache CouchDB
* 'couchdb-precise-backport': Apache CouchDB with Erlang 18 for precise
* 'createrepo-backports': Createrepo Backports
* 'firehol-backports': Firehol Backports
* 'golang-backports': Golang Backports
* 'golang-backports-dev': Golang Backports Dev
* 'iridium-browser-dev': Iridium Browser Dev dependencies
* 'pixel-extras': Pixel extras
* 'python2.7-backports': Python 2.7 Backports
* 'python3-m2crypto-backports': Python 3 M2Crypto backports
* 'stuff': Stuff
* 'ubuntu-pine64-flavour-makers': Ubuntu Pine64 Makers PPA
After multiple attempts, it may succeed, but the same above command sometimes
may return following error as well (intermittently):
$ sudo add-apt-repository ppa:~longsleep/ubuntu/golang-backports
Traceback (most recent call last):
File "/usr/bin/add-apt-repository", line 137, in <module>
shortcut = shortcut_handler(line)
File
"/usr/lib/python3/dist-packages/softwareproperties/SoftwareProperties.py", line
885, in shortcut_handler
ret = factory(shortcut)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 469,
in shortcut_handler
return PPAShortcutHandler(shortcut)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 426,
in __init__
info = get_ppa_info(self.shortcut)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 392,
in get_ppa_info
_get_suggested_ppa_message(user, ppa))
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 349,
in _get_suggested_ppa_message
lp_user = get_info_from_lp(LAUNCHPAD_USER_API % user)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 104,
in get_info_from_lp
return get_info_from_https(lp_url, True)
File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 98,
in get_info_from_https
return json.loads(data)
File "/usr/lib/python3.8/json/__init__.py", line 357, in loads
return _default_decoder.decode(s)
File "/usr/lib/python3.8/json/decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "/usr/lib/python3.8/json/decoder.py", line 355, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
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