Developer Document Catalog (3.3.22)

# Missing

Missing is used to find out the differences between the current branch and another branch.

The performance analysis itself brings no further points than the incremental-push-pull one.

More importantly, the UI have been considered not optimal: missing finds and displays the differences between two branches, presenting the revisions that are not common to both branches as two sets:

- the revisions that are present only in the current branch,

- the revisions that are present only in the other branch.

A quick and dirty survey indicates that most of the users are interested in only one set of revisions at a time.

From a performance point of view, it may be more appropriate to calculate only the set the user is asking for.

It has been proposed that the missing command be deprecated in favor of a –dry-run option for the push, pull, merge commands.

In the mean time, the missing command stays interesting as it provides an easy way to test, measure and optimize graph differences processing.