feat(git-clone): add support for tree git clone url

[michaelbrewer]

In Open in Coder flow, some url target a specific branch, ideally git-clone would support this.

Gitlab urls

Example urls to support

# url: https://gitlab.com/mike.brew/repo-tests.log/-/tree/feat/branch
git clone https://gitlab.com/mike.brew/repo-tests.log -b feat/branch repo-tests.log

Github urls

Example urls to support

# url: https://github.com/michaelbrewer/repo-tests.log/tree/feat/branch
git clone https://github.com/michaelbrewer/repo-tests.log -b feat/branch repo-tests.log

Bitbucket urls

Example urls to support

# url: https://bitbucket.org/gyftteam/repo-tests.log/src/dc427712c41a1046c355db8fb9df5da883790627/?at=feat%2Fbranch
git clone https://bitbucket.org/gyftteam/repo-tests.log -b feat/branch repo-tests.log

# url: https://bitbucket.org/gyftteam/repo-tests.log/src/main/
git clone https://bitbucket.org/gyftteam/repo-tests.log -b main repo-tests.log

# url: https://bitbucket.org/gyftteam/repo-tests.log/src/develop/
git clone https://bitbucket.org/gyftteam/repo-tests.log -b develop repo-tests.log

NOTES

It might be useful to add a flag to enable this or to have a way to set the tree reversal path used :

• /-/tree/ - for gitlab
• /tree/ - for github
• /src/ - for bitbucket

However there is often the case to have a single workspace template for "Open in Code" that supports multiple git projects.

Another way could be to have a list of supported endpoints?

• github.com - github
• bitbucket.org - bitbucket
• gitlab.com - gitlab

then you can add self-hosted versions

• source.mycorp.com - ado
• git.mycorp.com - gitlab

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related pull request: https://github.com/coder/modules/pull/210