fix(commit): don't try to process or to add changelog if it's skipped

[georgiee]

If you skip changelog generation standard-version fails to process the remaining checkpoints. This PR provides a fix.

Fixes

• Prevent CHANGELOG.md or any given infile from being added to git when skipped.
• Prevent CHANGELOG.md or any given infile from being added to the output when skipped.

Problem Description

Given this config:

"standard-version": {
    "skip": {
      "changelog": false,
      "tag": true
    }
  },

Before

✔ bumping version in package.json from 1.0.0 to 1.1.0
✔ committing package.json and CHANGELOG.md
fatal: pathspec 'CHANGELOG.md' did not match any files

Command failed: git add package.json CHANGELOG.md
fatal: pathspec 'CHANGELOG.md' did not match any files

After

✔ bumping version in package.json from 1.0.0 to 1.1.0
✔ committing package.json

Could not find any tests so I made the changes and tried it locally with the desired result.

Hope this works, thanks for this great tool.
Regards

[georgiee]

Of course there are tests and of course I break them including some wrong formats. I'm going to provide a test and fix the code style issues.

[coveralls]

Coverage remained the same at 100.0% when pulling 4cb7c07 on georgiee:fix-changelog-error-and-output into aad6a61 on conventional-changelog:master.

[coveralls]

Coverage remained the same at 100.0% when pulling bd17383 on georgiee:fix-changelog-error-and-output into a5ac845 on conventional-changelog:master.

[georgiee]

I run into this problem while I set up versioning where I didn't need an actual changelog in the beginning. The config gives me the possibility to skip the changelog processing — which implies not to create a changelog when there is none yet. People would be really surprised to find a checked in and empty changelog after their decision to skip it for whatever reasons.

[bcoe]

@georgiee seems reasonable to me, mind rebasing? sorry for the slow feedback.

[georgiee]

Done 👌 All tests are running, my new test works too and the CLI behaves exactly as expected now.

[igorsechyn]

Any chance this change can be released? This currently forces us to have an empty CHANGELOG file.