Add recipe for company-protobuf

[weidaolee]

Brief summary of what the package does

Add Protobuf directives keywords to company-mode keywords alist.

Direct link to the package repository

https://github.com/weidaolee/company-protobuf

Your association with the package

maintainer

Relevant communications with the upstream package maintainer

None needed

Checklist

• The package is released under a GPL-Compatible Free Software License
• I've read CONTRIBUTING.org
• I've used the latest version of package-lint to check for packaging issues, and addressed its feedback
• My elisp byte-compiles cleanly
• I've used M-x checkdoc to check the package's documentation strings
• I've built and installed the package using the instructions in CONTRIBUTING.org

[riscy]

Thanks for this. Quick first pass --

company-protobuf.el with byte-compile using Emacs 29.1:

company-protobuf.el:46:11: Warning: Package cl is deprecated
company-protobuf.el:47:2: Error: Cannot open load file: No such file or directory, company

Looks like a missing Package-Requires on company.

company-protobuf.el with checkdoc 0.6.2 (fix within reason):

company-protobuf.el:80: Argument `command' should appear (as COMMAND) in the doc string

company-protobuf.el with package-lint 20240214.1423:

6 issues found:
1:0: warning: The package summary should start with an uppercase letter or a digit.
4:35: warning: Use a properly versioned dependency on "cl-lib" if possible.
4:42: warning: Use a properly versioned dependency on "company" if possible.
6:3: warning: You should include standard keywords: see the variable `finder-known-keywords'.
13:0: error: Package should have a non-empty ;;; Commentary section.
76:4: warning: Closing parens should not be wrapped onto new lines.

Package and license:

• Use :fetcher github :repo <repo> instead of :url
• company-protobuf.el needs formal license boilerplate and/or an SPDX-License-Identifier