cli(refactor): add create changefeed cmd

[Rustin170506]

What problem does this PR solve?

split from https://github.com/pingcap/ticdc/pull/2482

What is changed and how it works?

add create changefeed cmd.

Check List

Tests

None

Code changes

• Has exported function/method change
• Has exported variable/fields change

Side effects

None

Related changes

None

Release note

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• asddongmen
• overvenus

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[Rustin170506]

/uncc liuzx lonng

[Rustin170506]

/cc @amyangfei @overvenus @3AceShowHand

Could you please take a look?

Also, I don't know if I should decouple the getInfo method, because it actually does two things: 1. gets and completes the cfg 2. generates info.

But since we use cfg in info, we put it together. Do you think it needs to be decoupled? Also in the process of completing the cfg we are constantly outputting warning messages to cmd. I'm not sure if decoupling will have any effect on these warnings. For example, the order and timing of its appearance. Can you guys help with some advice?

[overvenus]

Also in the process of completing the cfg we are constantly outputting warning messages to cmd.

What are these warning messages?

[Rustin170506]

What are these warning messages?

We output a lot of warnings in the process of completing the cfg.

[asddongmen]

rest LGTM

[Rustin170506]

@amyangfei @overvenus @asddongmen This PR tested in pingcap/ticdc@f13b168. All tests passed.

The code changes are quite significant and may require very careful review. Thanks! ❤️

[Rustin170506]

/run-all-tests

[Rustin170506]

/run-all-tests

[Rustin170506]

@amyangfei @overvenus ping~

Could you please take a look?

[overvenus]

👍

[overvenus]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 88f51c1

[codecov-commenter]

Codecov Report

Merging #2539 (5e98baa) into master (f3fdd65) will increase coverage by 5.0935%.
The diff coverage is 68.9024%.

@@               Coverage Diff                @@
##             master      #2539        +/-   ##
================================================
+ Coverage   56.0786%   61.1722%   +5.0935%     
================================================
  Files           169        161         -8     
  Lines         20605      17915      -2690     
================================================
- Hits          11555      10959       -596     
+ Misses         7919       5958      -1961     
+ Partials       1131        998       -133     

[ti-chi-bot]

In response to a cherrypick label: new pull request created: #2611.