Mercurial > hg
view tests/test-narrow-merge.t @ 40176:41263df08109
wireprotov2: change how revisions are specified to changesetdata
Right now, we have a handful of arguments for specifying the revisions
whose data should be returned. Defining how all these arguments
interact when various combinations are present is difficult.
This commit establishes a new, generic mechanism for specifying
revisions. Instead of a hodgepodge of arguments defining things, we
have a list of dicts that specify revision selectors. The final set
of revisions is a union of all these selectors.
We implement support for specifying revisions based on:
* An explicit list of changeset revisions
* An explicit list of changeset revisions plus ancestry depth
* A DAG range between changeset roots and heads
If you squint hard enough, this problem has already been solved by
revsets. But I'm reluctant to expose revsets to the wire protocol
because that would require servers to implement a revset parser.
Plus there are security and performance implications: the set
of revision selectors needs to be narrowly and specifically tailored
for what is appropriate to be executing on a server. Perhaps there
would be a way for us to express the "parse tree" of a revset
query, for example. I'm not sure. We can explore this space another
time. For now, the new mechanism should bring sufficient flexibility
while remaining relatively simple.
The selector "types" are prefixed with "changeset" because I plan
to add manifest and file-flavored selectors as well. This will enable
us to e.g. select file revisions based on a range of changeset
revisions.
Differential Revision: https://phab.mercurial-scm.org/D4979
author | Gregory Szorc <gregory.szorc@gmail.com> |
---|---|
date | Mon, 08 Oct 2018 18:17:12 -0700 |
parents | dc01484606da |
children | 8e855e9984a6 |
line wrap: on
line source
#testcases flat tree $ . "$TESTDIR/narrow-library.sh" #if tree $ cat << EOF >> $HGRCPATH > [experimental] > treemanifest = 1 > EOF #endif create full repo $ hg init master $ cd master $ cat >> .hg/hgrc <<EOF > [narrow] > serveellipses=True > EOF $ mkdir inside $ echo inside1 > inside/f1 $ echo inside2 > inside/f2 $ mkdir outside $ echo outside1 > outside/f1 $ echo outside2 > outside/f2 $ hg ci -Aqm 'initial' $ echo modified > inside/f1 $ hg ci -qm 'modify inside/f1' $ hg update -q 0 $ echo modified > inside/f2 $ hg ci -qm 'modify inside/f2' $ hg update -q 0 $ echo modified2 > inside/f1 $ hg ci -qm 'conflicting inside/f1' $ hg update -q 0 $ echo modified > outside/f1 $ hg ci -qm 'modify outside/f1' $ hg update -q 0 $ echo modified2 > outside/f1 $ hg ci -qm 'conflicting outside/f1' $ cd .. $ hg clone --narrow ssh://user@dummy/master narrow --include inside requesting all changes adding changesets adding manifests adding file changes added 6 changesets with 5 changes to 2 files (+4 heads) new changesets *:* (glob) updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd narrow $ hg update -q 0 Can merge in when no files outside narrow spec are involved $ hg update -q 'desc("modify inside/f1")' $ hg merge 'desc("modify inside/f2")' 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg commit -m 'merge inside changes' Can merge conflicting changes inside narrow spec $ hg update -q 'desc("modify inside/f1")' $ hg merge 'desc("conflicting inside/f1")' 2>&1 | egrep -v '(warning:|incomplete!)' merging inside/f1 0 files updated, 0 files merged, 0 files removed, 1 files unresolved use 'hg resolve' to retry unresolved file merges or 'hg merge --abort' to abandon $ echo modified3 > inside/f1 $ hg resolve -m (no more unresolved files) $ hg commit -m 'merge inside/f1' TODO: Can merge non-conflicting changes outside narrow spec $ hg update -q 'desc("modify inside/f1")' $ hg merge 'desc("modify outside/f1")' abort: merge affects file 'outside/f1' outside narrow, which is not yet supported (flat !) abort: merge affects file 'outside/' outside narrow, which is not yet supported (tree !) (merging in the other direction may work) [255] $ hg update -q 'desc("modify outside/f1")' $ hg merge 'desc("modify inside/f1")' 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg ci -m 'merge from inside to outside' Refuses merge of conflicting outside changes $ hg update -q 'desc("modify outside/f1")' $ hg merge 'desc("conflicting outside/f1")' abort: conflict in file 'outside/f1' is outside narrow clone (flat !) abort: conflict in file 'outside/' is outside narrow clone (tree !) [255]