Support for issue forks

[mglaman]

Drupal.org opened issue forks: https://www.drupal.org/project/drupalorg/issues/3152637

You create an issue fork, and fetch it via GraphQL then locally

git remote add commerce-3150917 [email protected]:issue/commerce-3150917.git

We should add commands that help ease this until the Web UI is complete

[mglaman]

Some of the GraphQL queries to https://git.drupalcode.org/api/graphql

{"query":"query projectFetch($path: ID!) {project(fullPath: $path) {\n                httpUrlToRepo\n                sshUrlToRepo\n                repository {\n                  rootRef\n                }\n              }}","variables":{"path":"issue/commerce-3152516"}}

And to fetch the branches

https://git.drupalcode.org/api/v4/projects/issue%2Fcommerce-3152516/repository/branches?per_page=100&page=1

[mglaman]

It doesn't look like there is any API entry for knowing if a project has issue forks enabled or not, but we can just query the GraphQL instance to see if there are any issue forks

curl 'https://git.drupalcode.org/api/graphql' \
  -H 'authority: git.drupalcode.org' \
  -H 'pragma: no-cache' \
  -H 'cache-control: no-cache' \
  -H 'user-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.138 Safari/537.36' \
  -H 'content-type: application/json' \
  -H 'accept: */*' \
  -H 'origin: https://www.drupal.org' \
  -H 'sec-fetch-site: cross-site' \
  -H 'sec-fetch-mode: cors' \
  -H 'sec-fetch-dest: empty' \
  -H 'referer: https://git.drupalcode.org/' \
  -H 'accept-language: en-US,en;q=0.9' \
  --data-binary $'{"query":"query projectFetch($path: ID\u0021) {project(fullPath: $path) {\\n                httpUrlToRepo\\n                sshUrlToRepo\\n                repository {\\n                  rootRef\\n                }\\n              }}","variables":{"path":"issue/commerce-3150917"}}' \
  --compressed