pkgs.owncloud still pointed to owncloud 7.0.15 (from May 13 2016)
Last owncloud server update in nixpkgs was in Jun 2016.
At the same time Nextcloud forked away from it, indicating users
switched over to that.
cc @matej (original maintainer)
credstash was only available as a library. Provide it as a standalone
application as well.
In order for this to work, I needed to remove the copy of
the library that's placed in $out/bin and marked executable
during the install phase. Other than the patched shebang and
executable bit, it's identical to the library that's installed to
$out/lib/python3.7/site-packages.
Before the postFixup has run `wrapPythonPrograms`, $out/bin contains
two Python files -- credstash and credstash.py -- where bin/credstash
is the executable you'd expect a user to invoke from the command-line
and bin/credstash.py contains the credstash module, which bin/credstash
imports.
After `wrapPythonPrograms` has run, bin/credstash is a shell
wrapper around the bin/.credstash-wrapped python entrypoint, and
bin/credstash.py is shell wrapper around bin/.credstash.py-wrapped.
Invoking bin/credstash execs bin/.credstash-wrapped, and that python
script attempts to import the credstash module from bin/credstash.py,
the shell wrapper, rather than either bin/.credstash.py-wrapped or
lib/python3.7/site-packages/credstash.py.
This leads to an error:
$ credstash get mykey
Traceback (most recent call last):
File "/nix/store/hk6yma716w6141lcdh509d6qyyi7zm0i-python3.7-credstash-1.15.0/bin/.credstash-wrapped", line 8, in <module>
from credstash import main
File "/nix/store/hk6yma716w6141lcdh509d6qyyi7zm0i-python3.7-credstash-1.15.0/bin/credstash.py", line 2
export PATH='/nix/store/6lm4gi5iv8fbf1b1mm6g3gfnnv63f1gn-python3-3.7.1/bin:/nix/store/hk6yma716w6141lcdh509d6qyyi7zm0i-python3.7-credstash-1.15.0/bin:/nix/store/2n13gf1zdr39ir5dynxlkqndxgy36g08-python3.7-setuptools-40.4.3/bin:/nix/store/mhnqwpa4y1l81zi4cwx989i8h8z9g67l-python3.7-jmespath-0.9.0/bin:/nix/store/qc6q3a2nv4211wyh7q319v6zzd3ab6pc-python3.7-docutils-0.14/bin'${PATH:+':'}$PATH
^
SyntaxError: invalid syntax
If we try using `dontWrapPythonPrograms` to resolve this, runtime
dependency lookups fail:
$ credstash get mykey
Traceback (most recent call last):
File "/run/current-system/sw/bin/credstash", line 7, in <module>
from credstash import main
File "/nix/store/8rmldlvlv1z1xl7w02dy7f5qhkzdrg8z-python3.7-credstash-1.15.0/bin/credstash.py", line 26, in <module>
import boto3
ModuleNotFoundError: No module named 'boto3'
I was able to resolve things by simply removing bin/credstash.py before
the postFixup phase has a chance to wrap any executables. Now the
executable imports the library correctly:
(shell wrapper)
bin/credstash
│ (python executable)
└─> bin/.credstash-wrapped
│ (python library)
└─> lib/python3.7/site-packages/credstash.py
