Mercurial > hg
view tests/test-mq-qdiff.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 | e955549cd045 |
children |
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$ cat <<EOF >> $HGRCPATH > [extensions] > mq = > [mq] > git = keep > EOF $ hg init a $ cd a $ echo 'base' > base $ hg ci -Ambase adding base $ hg qnew -mmqbase mqbase $ echo 'patched' > base $ hg qrefresh qdiff: $ hg qdiff diff -r d20a80d4def3 base --- a/base Thu Jan 01 00:00:00 1970 +0000 +++ b/base* (glob) @@ -1,1 +1,1 @@ -base +patched qdiff dirname: $ hg qdiff --nodates . diff -r d20a80d4def3 base --- a/base +++ b/base @@ -1,1 +1,1 @@ -base +patched qdiff filename: $ hg qdiff --nodates base diff -r d20a80d4def3 base --- a/base +++ b/base @@ -1,1 +1,1 @@ -base +patched $ hg revert -a $ hg qpop popping mqbase patch queue now empty $ hg qdelete mqbase $ printf '1\n2\n3\n4\nhello world\ngoodbye world\n7\n8\n9\n' > lines $ hg ci -Amlines -d '2 0' adding lines $ hg qnew -mmqbase2 mqbase2 $ printf '\n\n1\n2\n3\n4\nhello world\n goodbye world\n7\n8\n9\n' > lines $ hg qdiff --nodates -U 1 diff -r b0c220e1cf43 lines --- a/lines +++ b/lines @@ -1,1 +1,3 @@ + + 1 @@ -4,4 +6,4 @@ 4 -hello world -goodbye world +hello world + goodbye world 7 $ hg qdiff --nodates -b diff -r b0c220e1cf43 lines --- a/lines +++ b/lines @@ -1,9 +1,11 @@ + + 1 2 3 4 hello world -goodbye world + goodbye world 7 8 9 $ hg qdiff --nodates -U 1 -B diff -r b0c220e1cf43 lines --- a/lines +++ b/lines @@ -4,4 +4,4 @@ 4 -hello world -goodbye world +hello world + goodbye world 7 $ hg qdiff --nodates -w diff -r b0c220e1cf43 lines --- a/lines +++ b/lines @@ -1,3 +1,5 @@ + + 1 2 3 $ hg qdiff --nodates --reverse diff -r b0c220e1cf43 lines --- a/lines +++ b/lines @@ -1,11 +1,9 @@ - - 1 2 3 4 -hello world - goodbye world +hello world +goodbye world 7 8 9 qdiff preserve existing git flag: $ hg qrefresh --git $ echo a >> lines $ hg qdiff diff --git a/lines b/lines --- a/lines +++ b/lines @@ -1,9 +1,12 @@ + + 1 2 3 4 -hello world -goodbye world +hello world + goodbye world 7 8 9 +a $ hg qdiff --stat lines | 7 +++++-- 1 files changed, 5 insertions(+), 2 deletions(-) $ hg qrefresh qdiff when file deleted (but not removed) in working dir: $ hg qnew deleted-file $ echo a > newfile $ hg add newfile $ hg qrefresh $ rm newfile $ hg qdiff $ cd ..