Mercurial > hg
view tests/test-histedit-outgoing.t @ 38486:4c0683655599
namespaces: let namespaces override singlenode() definition
Some namespaces have multiple nodes per name (meaning that their
namemap() returns multiple nodes). One such namespace is the "topics"
namespace (from the evolve repo). We also have our own internal
namespace at Google (for review units) that has multiple nodes per
name. These namespaces may not want to use the default "pick highest
revnum" resolution that we currently use when resolving a name to a
single node. As an example, they may decide that `hg co <name>` should
check out a commit that's last in some sense even if an earlier commit
had just been amended and thus had a higher revnum [1]. This patch
gives the namespace the option to continue to return multiple nodes
and to override how the best node is picked. Allowing namespaces to
override that may also be useful as an optimization (it may be cheaper
for the namespace to find just that node).
I have been arguing (in D3715) for using all the nodes returned from
namemap() when resolving the symbol to a revset, so e.g. `hg log -r
stable` would resolve to *all* nodes on stable, not just the one with
the highest revnum (except that I don't actually think we should
change it for the branch namespace because of BC). Most people seem
opposed to that. If we decide not to do it, I think we can deprecate
the namemap() function in favor of the new singlenode() (I find it
weird to have namespaces, like the branch namespace, where namemap()
isn't nodemap()'s inverse). I therefore think this patch makes sense
regardless of what we decide on that issue.
[1] Actually, even the branch namespace would have wanted to override
singlenode() if it had supported multiple nodes. That's because
closes branch heads are mostly ignored, so "hg co default" will
not check out the highest-revnum node if that's a closed head.
Differential Revision: https://phab.mercurial-scm.org/D3852
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Tue, 26 Jun 2018 10:02:01 -0700 |
parents | 270e344a6c74 |
children | 6f8a94bbfba1 |
line wrap: on
line source
$ cat >> $HGRCPATH <<EOF > [extensions] > histedit= > EOF $ initrepos () > { > hg init r > cd r > for x in a b c ; do > echo $x > $x > hg add $x > hg ci -m $x > done > cd .. > hg clone r r2 | grep -v updating > cd r2 > for x in d e f ; do > echo $x > $x > hg add $x > hg ci -m $x > done > cd .. > hg init r3 > cd r3 > for x in g h i ; do > echo $x > $x > hg add $x > hg ci -m $x > done > cd .. > } $ initrepos 3 files updated, 0 files merged, 0 files removed, 0 files unresolved show the edit commands offered by outgoing $ cd r2 $ HGEDITOR=cat hg histedit --outgoing ../r | grep -v comparing | grep -v searching pick 055a42cdd887 3 d pick e860deea161a 4 e pick 652413bf663e 5 f # Edit history between 055a42cdd887 and 652413bf663e # # Commits are listed from least to most recent # # You can reorder changesets by reordering the lines # # Commands: # # e, edit = use commit, but stop for amending # m, mess = edit commit message without changing commit content # p, pick = use commit # b, base = checkout changeset and apply further changesets from there # d, drop = remove commit from history # f, fold = use commit, but combine it with the one above # r, roll = like fold, but discard this commit's description and date # $ cd .. show the error from unrelated repos $ cd r3 $ HGEDITOR=cat hg histedit --outgoing ../r | grep -v comparing | grep -v searching abort: repository is unrelated [1] $ cd .. show the error from unrelated repos $ cd r3 $ HGEDITOR=cat hg histedit --force --outgoing ../r comparing with ../r searching for changes warning: repository is unrelated pick 2a4042b45417 0 g pick 68c46b4927ce 1 h pick 51281e65ba79 2 i # Edit history between 2a4042b45417 and 51281e65ba79 # # Commits are listed from least to most recent # # You can reorder changesets by reordering the lines # # Commands: # # e, edit = use commit, but stop for amending # m, mess = edit commit message without changing commit content # p, pick = use commit # b, base = checkout changeset and apply further changesets from there # d, drop = remove commit from history # f, fold = use commit, but combine it with the one above # r, roll = like fold, but discard this commit's description and date # $ cd .. test sensitivity to branch in URL: $ cd r2 $ hg -q update 2 $ hg -q branch foo $ hg commit -m 'create foo branch' $ HGEDITOR=cat hg histedit --outgoing '../r#foo' | grep -v comparing | grep -v searching pick f26599ee3441 6 create foo branch # Edit history between f26599ee3441 and f26599ee3441 # # Commits are listed from least to most recent # # You can reorder changesets by reordering the lines # # Commands: # # e, edit = use commit, but stop for amending # m, mess = edit commit message without changing commit content # p, pick = use commit # b, base = checkout changeset and apply further changesets from there # d, drop = remove commit from history # f, fold = use commit, but combine it with the one above # r, roll = like fold, but discard this commit's description and date # test to check number of roots in outgoing revisions $ hg -q outgoing -G --template '{node|short}({branch})' '../r' @ f26599ee3441(foo) o 652413bf663e(default) | o e860deea161a(default) | o 055a42cdd887(default) $ HGEDITOR=cat hg -q histedit --outgoing '../r' abort: there are ambiguous outgoing revisions (see 'hg help histedit' for more detail) [255] $ hg -q update -C 2 $ echo aa >> a $ hg -q commit -m 'another head on default' $ hg -q outgoing -G --template '{node|short}({branch})' '../r#default' @ 3879dc049647(default) o 652413bf663e(default) | o e860deea161a(default) | o 055a42cdd887(default) $ HGEDITOR=cat hg -q histedit --outgoing '../r#default' abort: there are ambiguous outgoing revisions (see 'hg help histedit' for more detail) [255] $ cd ..