Mercurial > hg
view tests/test-unionrepo.t @ 30580:51e7c83e05ee
rebase: calculate ancestors for --base separately (issue5420)
Previously, the --base option only works with a single "branch" - if there
is one changeset in the "--base" revset whose branching point(s) is/are
different from another changeset in the "--base" revset, "rebase" will error
out with:
abort: source is ancestor of destination
This happens if the user has multiple draft branches, and uses "hg rebase -b
'draft()' -d master", for example. The error message looks cryptic to users
who don't know the implementation detail.
This patch changes the logic to calculate the common ancestor for every
"base" changeset separately so we won't (incorrectly) select "source" which
is an ancestor of the destination.
This patch should not change the behavior where all changesets specified by
"--base" have the same branching point(s).
A new situation is: some of the specified changesets could be rebased, while
some couldn't (because they are descendants of the destination, or they do
not share a common ancestor with the destination). The current behavior is
to show "nothing to rebase" and exits with 1.
This patch maintains the current behavior (show "nothing to rebase") even if
part of the "--base" revset could be rebased. A clearer error message may be
"cannot find branching point for X", or "X is a descendant of destination".
The error message issue is tracked by issue5422 separately.
A test is added with all kinds of tricky cases I could think of for now.
author | Jun Wu <quark@fb.com> |
---|---|
date | Mon, 28 Nov 2016 05:45:22 +0000 |
parents | bf86e3e87123 |
children | eb586ed5d8ce |
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Test unionrepo functionality Create one repository $ hg init repo1 $ cd repo1 $ touch repo1-0 $ echo repo1-0 > f $ hg ci -Aqmrepo1-0 $ touch repo1-1 $ echo repo1-1 >> f $ hg ci -Aqmrepo1-1 $ touch repo1-2 $ echo repo1-2 >> f $ hg ci -Aqmrepo1-2 $ hg log --template '{rev}:{node|short} {desc|firstline}\n' 2:68c0685446a3 repo1-2 1:8a58db72e69d repo1-1 0:f093fec0529b repo1-0 $ tip1=`hg id -q` $ cd .. - and a clone with a not-completely-trivial history $ hg clone -q repo1 --rev 0 repo2 $ cd repo2 $ touch repo2-1 $ sed '1i\ > repo2-1 at top > ' f > f.tmp $ mv f.tmp f $ hg ci -Aqmrepo2-1 $ touch repo2-2 $ hg pull -q ../repo1 -r 1 $ hg merge -q $ hg ci -Aqmrepo2-2-merge $ touch repo2-3 $ echo repo2-3 >> f $ hg ci -mrepo2-3 $ hg log --template '{rev}:{node|short} {desc|firstline}\n' 4:2f0d178c469c repo2-3 3:9e6fb3e0b9da repo2-2-merge 2:8a58db72e69d repo1-1 1:c337dba826e7 repo2-1 0:f093fec0529b repo1-0 $ cd .. revisions from repo2 appear as appended / pulled to repo1 $ hg -R union:repo1+repo2 log --template '{rev}:{node|short} {desc|firstline}\n' 5:2f0d178c469c repo2-3 4:9e6fb3e0b9da repo2-2-merge 3:c337dba826e7 repo2-1 2:68c0685446a3 repo1-2 1:8a58db72e69d repo1-1 0:f093fec0529b repo1-0 manifest can be retrieved for revisions in both repos $ hg -R union:repo1+repo2 mani -r $tip1 f repo1-0 repo1-1 repo1-2 $ hg -R union:repo1+repo2 mani -r 4 f repo1-0 repo1-1 repo2-1 repo2-2 files can be retrieved form both repos $ hg -R repo1 cat repo1/f -r2 repo1-0 repo1-1 repo1-2 $ hg -R union:repo1+repo2 cat -r$tip1 repo1/f repo1-0 repo1-1 repo1-2 $ hg -R union:repo1+repo2 cat -r4 $TESTTMP/repo1/f repo2-1 at top repo1-0 repo1-1 files can be compared across repos $ hg -R union:repo1+repo2 diff -r$tip1 -rtip diff -r 68c0685446a3 -r 2f0d178c469c f --- a/f Thu Jan 01 00:00:00 1970 +0000 +++ b/f Thu Jan 01 00:00:00 1970 +0000 @@ -1,3 +1,4 @@ +repo2-1 at top repo1-0 repo1-1 -repo1-2 +repo2-3 heads from both repos are found correctly $ hg -R union:repo1+repo2 heads --template '{rev}:{node|short} {desc|firstline}\n' 5:2f0d178c469c repo2-3 2:68c0685446a3 repo1-2 revsets works across repos $ hg -R union:repo1+repo2 id -r "ancestor($tip1, 5)" 8a58db72e69d annotate works - an indication that linkrevs works $ hg --cwd repo1 -Runion:../repo2 annotate $TESTTMP/repo1/f -r tip 3: repo2-1 at top 0: repo1-0 1: repo1-1 5: repo2-3 union repos can be cloned ... and clones works correctly $ hg clone -U union:repo1+repo2 repo3 requesting all changes adding changesets adding manifests adding file changes added 6 changesets with 11 changes to 6 files (+1 heads) $ hg -R repo3 paths default = union:repo1+repo2 $ hg -R repo3 verify checking changesets checking manifests crosschecking files in changesets and manifests checking files 6 files, 6 changesets, 11 total revisions $ hg -R repo3 heads --template '{rev}:{node|short} {desc|firstline}\n' 5:2f0d178c469c repo2-3 2:68c0685446a3 repo1-2 $ hg -R repo3 log --template '{rev}:{node|short} {desc|firstline}\n' 5:2f0d178c469c repo2-3 4:9e6fb3e0b9da repo2-2-merge 3:c337dba826e7 repo2-1 2:68c0685446a3 repo1-2 1:8a58db72e69d repo1-1 0:f093fec0529b repo1-0 union repos should use the correct rev number (issue5024) $ hg init a $ cd a $ echo a0 >> f $ hg ci -Aqm a0 $ cd .. $ hg init b $ cd b $ echo b0 >> f $ hg ci -Aqm b0 $ echo b1 >> f $ hg ci -qm b1 $ cd .. "hg files -v" to call fctx.size() -> fctx.iscensored() $ hg files -R union:b+a -r2 -v 3 b/f (glob)