feat: apply constraints to versions used when fixing mismatches

[vjpr]

I have a bunch of packages using webpack@4 and webpack@5. I basically want all packages to pin to the same version of either 4 or 5 depending on what they currently depend on.

Some packages depend on webpack@5.0.0-beta.18 for example. This is because it was the only package available at the time, but now I want them all to use the latest.

I guess its similar to versionGroups, but instead of listing packages, I want to list the semver range for the group.

Something like:

{
  "versionGroups": [
    {
      "dependencies": ["webpack"],
      "versions": ["webpack@4<5"],
    },
    {
      "dependencies": ["webpack"],
      "versions": ["webpack@>5"],
    }
  ]
}

[JamieMason]

It's been a long time getting around to this, but how does this sound @vjpr?

• @old-stuff/* must have the same versions of webpack, lodash, and react
• @new-stuff/* must have the same versions of webpack, lodash, and react
• @old-stuff/* and @new-stuff/* can have different versions of webpack, lodash, and react to each other
• lodash and react mismatches will always be synced to the newest version found
• webpack within @old-stuff/* will be synced to to the newest version which matches the constraint webpack@<5
• webpack within @new-stuff/* will be synced to to the newest version which matches the constraint webpack@>5
• If no version matches the constraint, throw an error and quit

{
  "versionGroups": [
    {
      "dependencies": ["webpack", "lodash", "react"],
      "packages": ["@old-stuff/server","@old-stuff/ui"],
      "constraints": ["webpack@<5"]
    },
    {
      "dependencies": ["webpack", "lodash", "react"],
      "packages": ["@new-stuff/server","@new-stuff/ui"],
      "constraints": ["webpack@>5"]
    }
  ]
}

[JamieMason]

Shall I close this one @vjpr?

[JamieMason]

This should now be possible in 6.1.0.