issues: 527710055

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id node_id number title user state locked assignee milestone comments created_at updated_at closed_at author_association pull_request body repo type active_lock_reason performed_via_github_app reactions draft state_reason
527710055 MDU6SXNzdWU1Mjc3MTAwNTU= 640 Nicer error message for heroku publish name clash 82988 open 0     1 2019-11-24T14:57:07Z 2019-12-06T07:19:34Z   CONTRIBUTOR  

If you try to publish to Heroku using no set name (i.e. the default datasette name) and a project already exists under that name, you get a meaningful error report on the first line followed by Py error messages that drown it out:

Creating datasette... ! ▸ Name datasette is already taken Traceback (most recent call last): File "/usr/local/bin/datasette", line 10, in <module> sys.exit(cli()) File "/usr/local/lib/python3.7/site-packages/click/core.py", line 764, in __call__ return self.main(*args, **kwargs) File "/usr/local/lib/python3.7/site-packages/click/core.py", line 717, in main rv = self.invoke(ctx) File "/usr/local/lib/python3.7/site-packages/click/core.py", line 1137, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "/usr/local/lib/python3.7/site-packages/click/core.py", line 1137, in invoke return _process_result(sub_ctx.command.invoke(sub_ctx)) File "/usr/local/lib/python3.7/site-packages/click/core.py", line 956, in invoke return ctx.invoke(self.callback, **ctx.params) File "/usr/local/lib/python3.7/site-packages/click/core.py", line 555, in invoke return callback(*args, **kwargs) File "/Users/NNNNN/Library/Python/3.7/lib/python/site-packages/datasette/publish/heroku.py", line 124, in heroku create_output = check_output(cmd).decode("utf8") File "/usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/lib/python3.7/subprocess.py", line 411, in check_output **kwargs).stdout File "/usr/local/Cellar/python/3.7.5/Frameworks/Python.framework/Versions/3.7/lib/python3.7/subprocess.py", line 512, in run output=stdout, stderr=stderr) subprocess.CalledProcessError: Command '['heroku', 'apps:create', 'datasette', '--json']' returned non-zero exit status 1.

It would be neater if:

  • the Py error message was caught;
  • the report suggested setting a project name using -n etc.

It may also be useful to provide a command to list the current names that are being used, which I assume is available via a Heroku call?

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