Mercurial > hg
view tests/test-merge-local.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 | 9e4f82bc2b0b |
children | 55c6ebd11cb9 |
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$ hg init Revision 0: $ echo "unchanged" > unchanged $ echo "remove me" > remove $ echo "copy me" > copy $ echo "move me" > move $ for i in 1 2 3 4 5 6 7 8 9; do > echo "merge ok $i" >> zzz1_merge_ok > done $ echo "merge bad" > zzz2_merge_bad $ hg ci -Am "revision 0" adding copy adding move adding remove adding unchanged adding zzz1_merge_ok adding zzz2_merge_bad Revision 1: $ hg rm remove $ hg mv move moved $ hg cp copy copied $ echo "added" > added $ hg add added $ echo "new first line" > zzz1_merge_ok $ hg cat zzz1_merge_ok >> zzz1_merge_ok $ echo "new last line" >> zzz2_merge_bad $ hg ci -m "revision 1" Local changes to revision 0: $ hg co 0 4 files updated, 0 files merged, 3 files removed, 0 files unresolved $ echo "new last line" >> zzz1_merge_ok $ echo "another last line" >> zzz2_merge_bad $ hg diff --nodates | grep "^[+-][^<>]" --- a/zzz1_merge_ok +++ b/zzz1_merge_ok +new last line --- a/zzz2_merge_bad +++ b/zzz2_merge_bad +another last line $ hg st M zzz1_merge_ok M zzz2_merge_bad Local merge with bad merge tool: $ HGMERGE=false hg co merging zzz1_merge_ok merging zzz2_merge_bad merging zzz2_merge_bad failed! 3 files updated, 1 files merged, 2 files removed, 1 files unresolved use 'hg resolve' to retry unresolved file merges [1] $ hg resolve -m (no more unresolved files) $ hg co 0 merging zzz1_merge_ok merging zzz2_merge_bad warning: conflicts while merging zzz2_merge_bad! (edit, then use 'hg resolve --mark') 2 files updated, 1 files merged, 3 files removed, 1 files unresolved use 'hg resolve' to retry unresolved file merges [1] $ hg diff --nodates | grep "^[+-][^<>]" --- a/zzz1_merge_ok +++ b/zzz1_merge_ok +new last line --- a/zzz2_merge_bad +++ b/zzz2_merge_bad +another last line +======= $ hg st M zzz1_merge_ok M zzz2_merge_bad ? zzz2_merge_bad.orig Local merge with conflicts: $ hg resolve -m (no more unresolved files) $ hg co merging zzz1_merge_ok merging zzz2_merge_bad warning: conflicts while merging zzz2_merge_bad! (edit, then use 'hg resolve --mark') 3 files updated, 1 files merged, 2 files removed, 1 files unresolved use 'hg resolve' to retry unresolved file merges [1] $ hg resolve -m (no more unresolved files) $ hg co 0 --config 'ui.origbackuppath=.hg/origbackups' merging zzz1_merge_ok merging zzz2_merge_bad warning: conflicts while merging zzz2_merge_bad! (edit, then use 'hg resolve --mark') 2 files updated, 1 files merged, 3 files removed, 1 files unresolved use 'hg resolve' to retry unresolved file merges [1] Are orig files from the last commit where we want them? $ ls .hg/origbackups zzz2_merge_bad $ hg diff --nodates | grep "^[+-][^<>]" --- a/zzz1_merge_ok +++ b/zzz1_merge_ok +new last line --- a/zzz2_merge_bad +++ b/zzz2_merge_bad +another last line +======= +======= +new last line +======= $ hg st M zzz1_merge_ok M zzz2_merge_bad ? zzz2_merge_bad.orig Local merge without conflicts: $ hg revert zzz2_merge_bad $ hg resolve -m (no more unresolved files) $ hg co merging zzz1_merge_ok 4 files updated, 1 files merged, 2 files removed, 0 files unresolved $ hg diff --nodates | grep "^[+-][^<>]" --- a/zzz1_merge_ok +++ b/zzz1_merge_ok +new last line $ hg st M zzz1_merge_ok ? zzz2_merge_bad.orig