Module commits 

The workspace commits an endpoint has seen: one action, every unit it wrote, delivered all together or not at all.

A commit arrives inside the signed payload of each part’s document op (collab_types::WorkspaceCommit). The gate here holds a part’s event until every part of its action has arrived, then releases them in the commit’s own order, so an app never applies half an action and every peer that can read all parts applies them in the same order. A peer that receives only some parts keeps the ones it has, undelivered, until the rest come. A part that comes again on its own — a publisher that sent it in a later pass, under a commit of its own or none — still completes the action it was held for, so one action stays one action however its parts were retried.

The log is also the action log history reads: crate::commit_log::CommitLog indexes the complete actions and the changes that made them, so a resource’s history is one index entry and the actions it names. [Commits::history] names one action with its author, its time, its invocation and run and every unit change it made; [Commits::history_of] answers for one resource; [Commits::action_of] gives the whole action a change belongs to, which is what an undo of one change takes back. The log is derived from the changes and commits, never persisted: a restarted endpoint rebuilds it as they arrive again.

Structs

ChangeFact

One change of an action, as the log indexes it: the unit it belongs to, the resource its own history entry names, and when it was made.

CommitHistory

One action, as history reads it.

CommitLog

The actions this endpoint kept, and the index their queries read.