My 0AD snap (built from a git mirror of the upstream project’s trunk) used to build fine but now fails with the following error when building an embedded copy of spidermonkey:
checking Python environment is Mozilla virtualenv... Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/build/0ad-svn/parts/0ad-svn-build/build/libraries/source/spidermonkey/mozjs-38.0.0/python/mozbuild/mozbuild/base.py", line 17, in <module>
from mach.mixin.process import ProcessExecutionMixin
File "/build/0ad-svn/parts/0ad-svn-build/build/libraries/source/spidermonkey/mozjs-38.0.0/python/mach/mach/mixin/process.py", line 29, in <module>
raise Exception('Could not detect environment shell!')
Exception: Could not detect environment shell!
The code that raises that exception is the following:
# Perform detection of operating system environment. This is used by command
# execution. We only do this once to save redundancy. Yes, this can fail module
# loading. That is arguably OK.
if 'SHELL' in os.environ:
_current_shell = os.environ['SHELL']
elif 'MOZILLABUILD' in os.environ:
_current_shell = os.environ['MOZILLABUILD'] + '/msys/bin/sh.exe'
elif 'COMSPEC' in os.environ:
_current_shell = os.environ['COMSPEC']
else:
raise Exception('Could not detect environment shell!')
It looks like $SHELL is not defined in the launchpad builders’ environment, I’m wondering whether that could be a regression (or an intended change maybe) introduced by the use of LXD containers?
Note that I have successfully built the snap locally in a clean LXD container, where $SHELL is defined and its value is /bin/bash.
Corresponding build: https://code.launchpad.net/~osomon/+snap/0ad-svn/+build/79425.