Mercurial > hg-stable
view tests/test-diff-change.t @ 30440:8c0c75aa3ff4
bdiff: give slight preference to longest matches in the middle of the B side
We already have a slight preference for matches close to the middle on the A
side. Now, do the same on the B side.
j is iterating the b range backwards and we thus accept a new j if the previous
match was in the upper half.
This makes the test-bhalf diff "correct". It obviously also gives more
preference to balanced recursion than to appending to sequences. That is kind
of correct, but will also unfortunately make some bundles bigger. No doubt, we
can also create examples where it will make them smaller ...
The bundle size for 4.0 (hg bundle --base null -r 4.0 x.hg) happens to go from
22803824 to 22806817 bytes - an 0.01% increase.
author | Mads Kiilerich <madski@unity3d.com> |
---|---|
date | Tue, 08 Nov 2016 18:37:33 +0100 |
parents | 98976e3cae57 |
children | 64292addbe67 |
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Testing diff --change $ hg init a $ cd a $ echo "first" > file.txt $ hg add file.txt $ hg commit -m 'first commit' # 0 $ echo "second" > file.txt $ hg commit -m 'second commit' # 1 $ echo "third" > file.txt $ hg commit -m 'third commit' # 2 $ hg diff --nodates --change 1 diff -r 4bb65dda5db4 -r e9b286083166 file.txt --- a/file.txt +++ b/file.txt @@ -1,1 +1,1 @@ -first +second $ hg diff --change e9b286083166 diff -r 4bb65dda5db4 -r e9b286083166 file.txt --- a/file.txt Thu Jan 01 00:00:00 1970 +0000 +++ b/file.txt Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +1,1 @@ -first +second $ cd .. Test dumb revspecs: top-level "x:y", "x:", ":y" and ":" ranges should be handled as pairs even if x == y, but not for "f(x:y)" nor "x::y" (issue3474, issue4774) $ hg clone -q a dumbspec $ cd dumbspec $ echo "wdir" > file.txt $ hg diff -r 2:2 $ hg diff -r 2:. $ hg diff -r 2: $ hg diff -r :0 $ hg diff -r '2:first(2:2)' $ hg diff -r 'first(2:2)' --nodates diff -r bf5ff72eb7e0 file.txt --- a/file.txt +++ b/file.txt @@ -1,1 +1,1 @@ -third +wdir $ hg diff -r '(2:2)' --nodates diff -r bf5ff72eb7e0 file.txt --- a/file.txt +++ b/file.txt @@ -1,1 +1,1 @@ -third +wdir $ hg diff -r 2::2 --nodates diff -r bf5ff72eb7e0 file.txt --- a/file.txt +++ b/file.txt @@ -1,1 +1,1 @@ -third +wdir $ hg diff -r "2 and 1" abort: empty revision range [255] $ cd .. $ hg clone -qr0 a dumbspec-rev0 $ cd dumbspec-rev0 $ echo "wdir" > file.txt $ hg diff -r : $ hg diff -r 'first(:)' --nodates diff -r 4bb65dda5db4 file.txt --- a/file.txt +++ b/file.txt @@ -1,1 +1,1 @@ -first +wdir $ cd .. Testing diff --change when merge: $ cd a $ for i in 1 2 3 4 5 6 7 8 9 10; do > echo $i >> file.txt > done $ hg commit -m "lots of text" # 3 $ sed -e 's,^2$,x,' file.txt > file.txt.tmp $ mv file.txt.tmp file.txt $ hg commit -m "change 2 to x" # 4 $ hg up -r 3 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ sed -e 's,^8$,y,' file.txt > file.txt.tmp $ mv file.txt.tmp file.txt $ hg commit -m "change 8 to y" created new head $ hg up -C -r 4 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg merge -r 5 merging file.txt 0 files updated, 1 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg commit -m "merge 8 to y" # 6 $ hg diff --change 5 diff -r ae119d680c82 -r 9085c5c02e52 file.txt --- a/file.txt Thu Jan 01 00:00:00 1970 +0000 +++ b/file.txt Thu Jan 01 00:00:00 1970 +0000 @@ -6,6 +6,6 @@ 5 6 7 -8 +y 9 10 must be similar to 'hg diff --change 5': $ hg diff -c 6 diff -r 273b50f17c6d -r 979ca961fd2e file.txt --- a/file.txt Thu Jan 01 00:00:00 1970 +0000 +++ b/file.txt Thu Jan 01 00:00:00 1970 +0000 @@ -6,6 +6,6 @@ 5 6 7 -8 +y 9 10 $ cd ..