Fix version constrains, support multiple stable branches.

[webflo]

Related to drush-ops/drush#3748 (comment)

[webflo]

This is the result.

d8-composer.json.txt
d7-composer.json.txt

[webflo]

New files, with fixed logic for contrib.

d8-composer.json.txt
d7-composer.json.txt

[weitzman]

LGTM. We plan to merge this when next Drush release happens.

[weitzman]

It would very helpful if we could merge this into a new 8.y branch or some other named branch. Any chance we can setup Circle to publish like that? Then I could point Drush9 to that branch. Right now, pm:security is broken with Drush9.

[weitzman]

This PR is now publishing to the following branches. Thanks @webflo

• https://github.com/drupal-composer/drupal-security-advisories/tree/7.x-v2
• https://github.com/drupal-composer/drupal-security-advisories/tree/8.x-v2

[gapple]

For D7, this returns constraints like >7.67,<=7.67 instead of >7,<=7.67, so a different return is needed

  public static function handleCore($version) {
    list($major, $minor) = explode('.', $version);
    if ($major == '7') {
      return ">=$major,<$version";
    }
    return ">=$major.$minor,<$version";
  }

[webflo]

Created branch build-v2 with this code and configured Circle CI similar to the master branch. https://github.com/drupal-composer/drupal-security-advisories/tree/build-v2

The build was successful a few minutes ago.

@gapple Pleas open a new issue for D7 builds with v2 Version scheme.