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view tests/test-issue1502.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 | 4441705b7111 |
children |
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https://bz.mercurial-scm.org/1502 Initialize repository $ hg init foo $ touch foo/a && hg -R foo commit -A -m "added a" adding a $ hg clone foo foo1 updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ echo "bar" > foo1/a && hg -R foo1 commit -m "edit a in foo1" $ echo "hi" > foo/a && hg -R foo commit -m "edited a foo" $ hg -R foo1 pull pulling from $TESTTMP/foo searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) new changesets 273d008d6e8e (run 'hg heads' to see heads, 'hg merge' to merge) $ hg -R foo1 book branchy $ hg -R foo1 book * branchy 1:e3e522925eff Pull. Bookmark should not jump to new head. $ echo "there" >> foo/a && hg -R foo commit -m "edited a again" $ hg -R foo1 pull pulling from $TESTTMP/foo searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files new changesets 84a798d48b17 (run 'hg update' to get a working copy) $ hg -R foo1 book * branchy 1:e3e522925eff