[BUG] Github/Git JSON DSL Parse Error -- when moving Folders/Files

[fbartho]

Describe the bug
A refactor in a Github-based project that moved some directories around caused DangerJS to stop reporting errors, with the following output:

Reached Bottom of Dangerfile // custom log line we injected

Unable to evaluate the Dangerfile
 TypeError: Cannot read properties of null (reading 'name')
    at Object.get (/home/runner/work/backend/backend/node_modules/jsonpointer/jsonpointer.js:69:14)
    at /home/runner/work/backend/backend/node_modules/danger/distribution/platforms/git/gitJSONToGitDSL.js:143:63
    at Array.reduce (<anonymous>)
    at /home/runner/work/backend/backend/node_modules/danger/distribution/platforms/git/gitJSONToGitDSL.js:135:48
    at step (/home/runner/work/backend/backend/node_modules/danger/distribution/platforms/git/gitJSONToGitDSL.js:52:23)
    at Object.next (/home/runner/work/backend/backend/node_modules/danger/distribution/platforms/git/gitJSONToGitDSL.js:33:53)
    at fulfilled (/home/runner/work/backend/backend/node_modules/danger/distribution/platforms/git/gitJSONToGitDSL.js:24:58)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)


Failing the build, there is 1 fail.
[Additional log output about updating/posting the comment]

To Reproduce
Unclear, we don't have a minimal reproduction set. I'm happy to inject any debugging code or flags that you deem helpful!

Expected behavior
No error thrown.

Screenshots
N/A

Your Environment

software	version
danger.js	10.7.1
node	16
yarn	1.22.17
Operating System	Github Actions ubuntu-latest

Additional context
N/A

[fbartho]

Update: we were able to replicate this issue with another PR that moved files.

The files were moved into a newly created nested directory. Many of them had no other changes, but some of them just had paths updated.

This still isn't a minimal reproduction set, but maybe there's a hint at what JSON file jsonpointer is choking on?

[orta]

It's likely related to this #481 - there's something strange with the git output we get from renames