Deprecate project id

[vyasr]

Description

Projects now have a default name, and setting any custom name triggers a warning.

Motivation and Context

Related to #541. This change provides a softer off-ramp for current users with scripts where they provide the name parameter for project initialization. Rather than removing it entirely, this PR provides a warning that this parameter will be removed in 2.0.

Types of Changes

• Documentation update
• Bug fix
• New feature
• Breaking change¹

¹The change breaks (or has the potential to break) existing functionality.

Checklist:

• I am familiar with the Contributing Guidelines.
• I agree with the terms of the Contributor Agreement.
• My name is on the list of contributors.
• My code follows the code style guideline of this project.
• The changes introduced by this pull request are covered by existing or newly introduced tests.

If necessary:

• I have updated the API documentation as part of the package doc-strings.
• I have created a separate pull request to update the framework documentation on signac-docs and linked it here.
• I have updated the changelog and added all related issue and pull request numbers for future reference (if applicable). See example below.

[codecov]

Codecov Report

Merging #644 (b5ac8b0) into master (bb5c07d) will decrease coverage by 0.01%.
The diff coverage is 71.42%.

@@            Coverage Diff             @@
##           master     #644      +/-   ##
==========================================
- Coverage   78.56%   78.54%   -0.02%     
==========================================
  Files          65       65              
  Lines        7137     7141       +4     
  Branches     1564     1565       +1     
==========================================
+ Hits         5607     5609       +2     
- Misses       1227     1228       +1     
- Partials      303      304       +1     

Impacted Files	Coverage Δ
signac/diff.py	100.00% <ø> (ø)
signac/contrib/project.py	85.03% <66.66%> (-0.18%)	⬇️
signac/__main__.py	71.89% <100.00%> (ø)

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[b-butler]

@cbkerr @Tobias-Dwyer will you have time to review this PR?

[cbkerr]

Do we also have to update the docstring of init_project on line 3045?

[cbkerr]

Check that my changes to init_project on lines 3046 and 3055 are okay.

Otherwise it looks good!

[vyasr]

Check that my changes to init_project on lines 3046 and 3055 are okay.

Otherwise it looks good!

Thanks @cbkerr! Your change looks right to me. I'm going to hold off merging this until #643 is resolved just in case we run into any blockers with the deprecation there.

[vyasr]

Still waiting on #643.

[vyasr]

The relevant changes from #643 were separated into #677, which has now been merged onto next, so we should be good to go on this PR if you approve @bdice.

[bdice]

LGTM!