Mercurial > hg
view tests/test-issue672.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 | 4d504e541d3d |
children | 91a0bc50b288 |
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https://bz.mercurial-scm.org/672 # 0-2-4 # \ \ \ # 1-3-5 # # rename in #1, content change in #4. $ hg init $ touch 1 $ touch 2 $ hg commit -Am init # 0 adding 1 adding 2 $ hg rename 1 1a $ hg commit -m rename # 1 $ hg co -C 0 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ echo unrelated >> 2 $ hg ci -m unrelated1 # 2 created new head $ hg merge --debug 1 searching for copies back to rev 1 unmatched files in other: 1a all copies found (* = to merge, ! = divergent, % = renamed and deleted): src: '1' -> dst: '1a' checking for directory renames resolving manifests branchmerge: True, force: False, partial: False ancestor: 81f4b099af3d, local: c64f439569a9+, remote: c12dcd37c90a 1: other deleted -> r removing 1 1a: remote created -> g getting 1a 1 files updated, 0 files merged, 1 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg ci -m merge1 # 3 $ hg co -C 2 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ echo hello >> 1 $ hg ci -m unrelated2 # 4 created new head $ hg co -C 3 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ hg merge -y --debug 4 searching for copies back to rev 1 unmatched files in local: 1a all copies found (* = to merge, ! = divergent, % = renamed and deleted): src: '1' -> dst: '1a' * checking for directory renames resolving manifests branchmerge: True, force: False, partial: False ancestor: c64f439569a9, local: e327dca35ac8+, remote: 746e9549ea96 preserving 1a for resolve of 1a starting 4 threads for background file closing (?) 1a: local copied/moved from 1 -> m (premerge) picked tool ':merge' for 1a (binary False symlink False changedelete False) merging 1a and 1 to 1a my 1a@e327dca35ac8+ other 1@746e9549ea96 ancestor 1@c64f439569a9 premerge successful 0 files updated, 1 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg co -C 4 1 files updated, 0 files merged, 1 files removed, 0 files unresolved $ hg merge -y --debug 3 searching for copies back to rev 1 unmatched files in other: 1a all copies found (* = to merge, ! = divergent, % = renamed and deleted): src: '1' -> dst: '1a' * checking for directory renames resolving manifests branchmerge: True, force: False, partial: False ancestor: c64f439569a9, local: 746e9549ea96+, remote: e327dca35ac8 preserving 1 for resolve of 1a removing 1 starting 4 threads for background file closing (?) 1a: remote moved from 1 -> m (premerge) picked tool ':merge' for 1a (binary False symlink False changedelete False) merging 1 and 1a to 1a my 1a@746e9549ea96+ other 1a@e327dca35ac8 ancestor 1@c64f439569a9 premerge successful 0 files updated, 1 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit)