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zulip_bots: Display neat error message for missing bot dependencies.

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We just moved the logic for installing bot dependencies from setup.py
to tools/provision. So bot dependencies are not automatically installed
anymore as a part of the base package. Now, if there is an import error
caused by missing dependency, we display a neat error message asking
the user to provision bot dependencies.
This commit is contained in:
Eeshan Garg 2018-06-05 21:01:04 -02:30 committed by Tim Abbott
parent f69f7f41d0
commit 26bd90b260
1 changed files with 14 additions and 1 deletions
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13
zulip_bots/zulip_bots/run.py
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@ -114,7 +114,20 @@ def main() -> None:
if args.provision:
provision_bot(os.path.dirname(bot_path), args.force)
try:
lib_module = import_module_from_source(bot_path, bot_name)
except ImportError as e:
req_path = os.path.join(os.path.dirname(bot_path), "requirements.txt")
with open(req_path) as fp:
deps_list = fp.read()
dep_err_msg = ("ERROR: The following dependencies for the {bot_name} bot are not installed:\n\n"
"{deps_list}\n"
"If you'd like us to install these dependencies, run:\n"
" zulip-run-bot {bot_name} --provision")
print(dep_err_msg.format(bot_name=bot_name, deps_list=deps_list))
sys.exit(1)
if lib_module is None:
print("ERROR: Could not load bot module. Exiting now.")
sys.exit(1)