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= Quick notes =
"VCS-sync" is a system which has evolved from it's original purpose to being the tool used whenever "this repository needs to be publicly visible 'over here'", perhaps with modifications, and a few exceptions on "publicly visible". The current (2016 Q1) business needs it addresses are:
# Support for gecko developers who prefer to work with git:
#* All gecko primary development and release branches are merged into a single git repository (with CVS history) in "gecko-dev.git".
#* All gecko twig and misc branches are merged into a single git repository (with CVS history) in "gecko-projects.git".
# Support for Mozilla development tools and processes which (for operational or developer preference needs, should appear in both Mercurial and Git repositories.
#* These are "mirrors" from one system to the other.
#* One repo is always designated the RoR (Repository of Record), and is the only one where commits will "stick".
#* Refer to the system configurations for each mirror to determine the RoR. (It can, and has, changed over time for some repositories.)
# Support for Partner facing FxOS development processes.
#* The URL's for these repositories can not change, as they are referenced in manifest files which comprise the delivery to Partners.
#* These repositories on git.mozilla.org satisfy various contractual needs with FxOS partners.
#* These repositories must not contain either object deletions, or non-fast-forward commits.
#* These repositories only contain content that was "delivered" to Partners, with branches named according to FxOS conventions.
#* These repositories include any "Mozilla Contributions" to FxOS, which includes code beyond gecko.git and gaia.git.
# Support for internal FxOS development processes.
#* Many Android repositories have been mirrored to git.mozilla.org for the purpose of having a known-good-repository for the build systems to clone from.
#* Some tests still require translation from Git → Mercurial format. Each such gaia.git branch is mapped to a distinct Mercurial repository.
== What's running where ==
