view tests/test-update-reverse.out @ 5909:f45f7390c1c5

strip: calculate list of extra nodes to save and pass it to changegroupsubset

When we remove revision N from the repository, all revisions >= N are
affected: either it's a descendant from N and will also be removed, or
it's not a descendant of N and will be renumbered.

As a consequence, we have to (at least temporarily) remove all filelog
and manifest revisions that have a linkrev >= N, readding some of them
later.

Unfortunately, it's possible to have a revlog with two revisions
r1 and r2 such that r1 < r2, but linkrev(r1) > linkrev(r2).  If we try
to strip revision linkrev(r1) from the repository, we'll also lose
revision r2 when we truncate this revlog.

We already use changegroupsubset to create a temporary changegroup
containing the revisions that have to be restored, but that function is
unable to detect that we also wanted to save the r2 in the case above.

So we manually calculate these extra nodes and pass it to changegroupsubset.

This should fix issue764.

0 files updated, 0 files merged, 1 files removed, 0 files unresolved
Main should be gone
a
changeset:   3:ded32b0db104
tag:         tip
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     Added side2

changeset:   2:92a816cea698
parent:      0:537353581d3d
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     Added side1

changeset:   1:221226fb2bd8
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     Added main

changeset:   0:537353581d3d
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     Added a

Should have two heads, side2 and main
changeset:   3:ded32b0db104
tag:         tip
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     Added side2

changeset:   1:221226fb2bd8
user:        test
date:        Mon Jan 12 13:46:40 1970 +0000
summary:     Added main

Should show a side1 side2
a
side1
side2
resolving manifests
 overwrite True partial False
 ancestor 537353581d3d local ded32b0db104+ remote 221226fb2bd8
 side2: remote deleted -> r
 side1: remote deleted -> r
 main: remote created -> g
getting main
removing side1
removing side2
1 files updated, 0 files merged, 2 files removed, 0 files unresolved
Should only show a main
a
main