Mercurial > hg
view tests/test-mv-cp-st-diff.t @ 44667:b561f3a68e41 stable
discovery: avoid wrongly saying there are nothing to pull
We can get in a situation where a revision passed through `hg pull --rev REV`
are available on the server, but not a descendant of the advertised server
heads.
For example the server could lying be during heads advertisement, to hide some
pull request. Or obsolete/hidden content could be explicitly pulled.
So in this case the lookup associated to `REV` returned successfully, but the
normal discovery will find all advertised heads already known locally. This flip
a special boolean `anyinc` that will prevent any fetch attempt, preventing `REV`
to be pulled over.
We add three line of code to detect this case and make sure a pull actually
happens.
My main target is to make some third party extensions happy (I expect the
associated test to move upstream with the extension). However this fix already
make some of the `infinitepush` test happier.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Mon, 06 Apr 2020 00:24:57 +0200 |
parents | 069cbbb53cdf |
children |
line wrap: on
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$ add() > { > echo $2 >> $1 > } $ hg init t $ cd t set up a boring main branch $ add a a $ hg add a $ mkdir x $ add x/x x $ hg add x/x $ hg ci -m0 $ add a m1 $ hg ci -m1 $ add a m2 $ add x/y y1 $ hg add x/y $ hg ci -m2 $ cd .. $ show() > { > echo "# $2:" > echo > echo "% hg st -C $1" > hg st -C $1 > echo > echo "% hg diff --git $1" > hg diff --git $1 > echo > } $ count=0 make a new branch and get diff/status output $1 - first commit $2 - second commit $3 - working dir action $ tb() > { > hg clone -q t t2 ; cd t2 > hg co -q -C 0 > > echo % add a $count > add a $count > count=`expr $count + 1` > echo % hg ci -m "t0" > hg ci -m "t0" > echo % $1 > $1 > echo % hg ci -m "t1" > hg ci -m "t1" > echo % $2 > $2 > echo % hg ci -m "t2" > hg ci -m "t2" > echo % $3 > $3 > echo > show "" "working to parent" > show "--rev 0" "working to root" > show "--rev 2" "working to branch" > show "--rev 0 --rev ." "root to parent" > show "--rev . --rev 0" "parent to root" > show "--rev 2 --rev ." "branch to parent" > show "--rev . --rev 2" "parent to branch" > echo > cd .. > rm -rf t2 > } rename in working dir $ tb "add a a1" "add a a2" "hg mv a b" % add a 0 % hg ci -m t0 created new head % add a a1 % hg ci -m t1 % add a a2 % hg ci -m t2 % hg mv a b # working to parent: % hg st -C A b a R a % hg diff --git diff --git a/a b/b rename from a rename to b # working to root: % hg st -C --rev 0 A b a R a % hg diff --git --rev 0 diff --git a/a b/b rename from a rename to b --- a/a +++ b/b @@ -1,1 +1,4 @@ a +0 +a1 +a2 # working to branch: % hg st -C --rev 2 A b a R a R x/y % hg diff --git --rev 2 diff --git a/a b/b rename from a rename to b --- a/a +++ b/b @@ -1,3 +1,4 @@ a -m1 -m2 +0 +a1 +a2 diff --git a/x/y b/x/y deleted file mode 100644 --- a/x/y +++ /dev/null @@ -1,1 +0,0 @@ -y1 # root to parent: % hg st -C --rev 0 --rev . M a % hg diff --git --rev 0 --rev . diff --git a/a b/a --- a/a +++ b/a @@ -1,1 +1,4 @@ a +0 +a1 +a2 # parent to root: % hg st -C --rev . --rev 0 M a % hg diff --git --rev . --rev 0 diff --git a/a b/a --- a/a +++ b/a @@ -1,4 +1,1 @@ a -0 -a1 -a2 # branch to parent: % hg st -C --rev 2 --rev . M a R x/y % hg diff --git --rev 2 --rev . diff --git a/a b/a --- a/a +++ b/a @@ -1,3 +1,4 @@ a -m1 -m2 +0 +a1 +a2 diff --git a/x/y b/x/y deleted file mode 100644 --- a/x/y +++ /dev/null @@ -1,1 +0,0 @@ -y1 # parent to branch: % hg st -C --rev . --rev 2 M a A x/y % hg diff --git --rev . --rev 2 diff --git a/a b/a --- a/a +++ b/a @@ -1,4 +1,3 @@ a -0 -a1 -a2 +m1 +m2 diff --git a/x/y b/x/y new file mode 100644 --- /dev/null +++ b/x/y @@ -0,0 +1,1 @@ +y1 copy in working dir $ tb "add a a1" "add a a2" "hg cp a b" % add a 1 % hg ci -m t0 created new head % add a a1 % hg ci -m t1 % add a a2 % hg ci -m t2 % hg cp a b # working to parent: % hg st -C A b a % hg diff --git diff --git a/a b/b copy from a copy to b # working to root: % hg st -C --rev 0 M a A b a % hg diff --git --rev 0 diff --git a/a b/a --- a/a +++ b/a @@ -1,1 +1,4 @@ a +1 +a1 +a2 diff --git a/a b/b copy from a copy to b --- a/a +++ b/b @@ -1,1 +1,4 @@ a +1 +a1 +a2 # working to branch: % hg st -C --rev 2 M a A b a R x/y % hg diff --git --rev 2 diff --git a/a b/a --- a/a +++ b/a @@ -1,3 +1,4 @@ a -m1 -m2 +1 +a1 +a2 diff --git a/a b/b copy from a copy to b --- a/a +++ b/b @@ -1,3 +1,4 @@ a -m1 -m2 +1 +a1 +a2 diff --git a/x/y b/x/y deleted file mode 100644 --- a/x/y +++ /dev/null @@ -1,1 +0,0 @@ -y1 # root to parent: % hg st -C --rev 0 --rev . M a % hg diff --git --rev 0 --rev . diff --git a/a b/a --- a/a +++ b/a @@ -1,1 +1,4 @@ a +1 +a1 +a2 # parent to root: % hg st -C --rev . --rev 0 M a % hg diff --git --rev . --rev 0 diff --git a/a b/a --- a/a +++ b/a @@ -1,4 +1,1 @@ a -1 -a1 -a2 # branch to parent: % hg st -C --rev 2 --rev . M a R x/y % hg diff --git --rev 2 --rev . diff --git a/a b/a --- a/a +++ b/a @@ -1,3 +1,4 @@ a -m1 -m2 +1 +a1 +a2 diff --git a/x/y b/x/y deleted file mode 100644 --- a/x/y +++ /dev/null @@ -1,1 +0,0 @@ -y1 # parent to branch: % hg st -C --rev . --rev 2 M a A x/y % hg diff --git --rev . --rev 2 diff --git a/a b/a --- a/a +++ b/a @@ -1,4 +1,3 @@ a -1 -a1 -a2 +m1 +m2 diff --git a/x/y b/x/y new file mode 100644 --- /dev/null +++ b/x/y @@ -0,0 +1,1 @@ +y1 single rename $ tb "hg mv a b" "add b b1" "add b w" % add a 2 % hg ci -m t0 created new head % hg mv a b % hg ci -m t1 % add b b1 % hg ci -m t2 % add b w # working to parent: % hg st -C M b % hg diff --git diff --git a/b b/b --- a/b +++ b/b @@ -1,3 +1,4 @@ a 2 b1 +w # working to root: % hg st -C --rev 0 A b a R a % hg diff --git --rev 0 diff --git a/a b/b rename from a rename to b --- a/a +++ b/b @@ -1,1 +1,4 @@ a +2 +b1 +w # working to branch: % hg st -C --rev 2 A b a R a R x/y % hg diff --git --rev 2 diff --git a/a b/b rename from a rename to b --- a/a +++ b/b @@ -1,3 +1,4 @@ a -m1 -m2 +2 +b1 +w diff --git a/x/y b/x/y deleted file mode 100644 --- a/x/y +++ /dev/null @@ -1,1 +0,0 @@ -y1 # root to parent: % hg st -C --rev 0 --rev . A b a R a % hg diff --git --rev 0 --rev . diff --git a/a b/b rename from a rename to b --- a/a +++ b/b @@ -1,1 +1,3 @@ a +2 +b1 # parent to root: % hg st -C --rev . --rev 0 A a b R b % hg diff --git --rev . --rev 0 diff --git a/b b/a rename from b rename to a --- a/b +++ b/a @@ -1,3 +1,1 @@ a -2 -b1 # branch to parent: % hg st -C --rev 2 --rev . A b a R a R x/y % hg diff --git --rev 2 --rev . diff --git a/a b/b rename from a rename to b --- a/a +++ b/b @@ -1,3 +1,3 @@ a -m1 -m2 +2 +b1 diff --git a/x/y b/x/y deleted file mode 100644 --- a/x/y +++ /dev/null @@ -1,1 +0,0 @@ -y1 # parent to branch: % hg st -C --rev . --rev 2 A a b A x/y R b % hg diff --git --rev . --rev 2 diff --git a/b b/a rename from b rename to a --- a/b +++ b/a @@ -1,3 +1,3 @@ a -2 -b1 +m1 +m2 diff --git a/x/y b/x/y new file mode 100644 --- /dev/null +++ b/x/y @@ -0,0 +1,1 @@ +y1 single copy $ tb "hg cp a b" "add b b1" "add a w" % add a 3 % hg ci -m t0 created new head % hg cp a b % hg ci -m t1 % add b b1 % hg ci -m t2 % add a w # working to parent: % hg st -C M a % hg diff --git diff --git a/a b/a --- a/a +++ b/a @@ -1,2 +1,3 @@ a 3 +w # working to root: % hg st -C --rev 0 M a A b a % hg diff --git --rev 0 diff --git a/a b/a --- a/a +++ b/a @@ -1,1 +1,3 @@ a +3 +w diff --git a/a b/b copy from a copy to b --- a/a +++ b/b @@ -1,1 +1,3 @@ a +3 +b1 # working to branch: % hg st -C --rev 2 M a A b a R x/y % hg diff --git --rev 2 diff --git a/a b/a --- a/a +++ b/a @@ -1,3 +1,3 @@ a -m1 -m2 +3 +w diff --git a/a b/b copy from a copy to b --- a/a +++ b/b @@ -1,3 +1,3 @@ a -m1 -m2 +3 +b1 diff --git a/x/y b/x/y deleted file mode 100644 --- a/x/y +++ /dev/null @@ -1,1 +0,0 @@ -y1 # root to parent: % hg st -C --rev 0 --rev . M a A b a % hg diff --git --rev 0 --rev . diff --git a/a b/a --- a/a +++ b/a @@ -1,1 +1,2 @@ a +3 diff --git a/a b/b copy from a copy to b --- a/a +++ b/b @@ -1,1 +1,3 @@ a +3 +b1 # parent to root: % hg st -C --rev . --rev 0 M a R b % hg diff --git --rev . --rev 0 diff --git a/a b/a --- a/a +++ b/a @@ -1,2 +1,1 @@ a -3 diff --git a/b b/b deleted file mode 100644 --- a/b +++ /dev/null @@ -1,3 +0,0 @@ -a -3 -b1 # branch to parent: % hg st -C --rev 2 --rev . M a A b a R x/y % hg diff --git --rev 2 --rev . diff --git a/a b/a --- a/a +++ b/a @@ -1,3 +1,2 @@ a -m1 -m2 +3 diff --git a/a b/b copy from a copy to b --- a/a +++ b/b @@ -1,3 +1,3 @@ a -m1 -m2 +3 +b1 diff --git a/x/y b/x/y deleted file mode 100644 --- a/x/y +++ /dev/null @@ -1,1 +0,0 @@ -y1 # parent to branch: % hg st -C --rev . --rev 2 M a A x/y R b % hg diff --git --rev . --rev 2 diff --git a/a b/a --- a/a +++ b/a @@ -1,2 +1,3 @@ a -3 +m1 +m2 diff --git a/b b/b deleted file mode 100644 --- a/b +++ /dev/null @@ -1,3 +0,0 @@ -a -3 -b1 diff --git a/x/y b/x/y new file mode 100644 --- /dev/null +++ b/x/y @@ -0,0 +1,1 @@ +y1 rename chain $ tb "hg mv a b" "hg mv b c" "hg mv c d" % add a 4 % hg ci -m t0 created new head % hg mv a b % hg ci -m t1 % hg mv b c % hg ci -m t2 % hg mv c d # working to parent: % hg st -C A d c R c % hg diff --git diff --git a/c b/d rename from c rename to d # working to root: % hg st -C --rev 0 A d a R a % hg diff --git --rev 0 diff --git a/a b/d rename from a rename to d --- a/a +++ b/d @@ -1,1 +1,2 @@ a +4 # working to branch: % hg st -C --rev 2 A d a R a R x/y % hg diff --git --rev 2 diff --git a/a b/d rename from a rename to d --- a/a +++ b/d @@ -1,3 +1,2 @@ a -m1 -m2 +4 diff --git a/x/y b/x/y deleted file mode 100644 --- a/x/y +++ /dev/null @@ -1,1 +0,0 @@ -y1 # root to parent: % hg st -C --rev 0 --rev . A c a R a % hg diff --git --rev 0 --rev . diff --git a/a b/c rename from a rename to c --- a/a +++ b/c @@ -1,1 +1,2 @@ a +4 # parent to root: % hg st -C --rev . --rev 0 A a c R c % hg diff --git --rev . --rev 0 diff --git a/c b/a rename from c rename to a --- a/c +++ b/a @@ -1,2 +1,1 @@ a -4 # branch to parent: % hg st -C --rev 2 --rev . A c a R a R x/y % hg diff --git --rev 2 --rev . diff --git a/a b/c rename from a rename to c --- a/a +++ b/c @@ -1,3 +1,2 @@ a -m1 -m2 +4 diff --git a/x/y b/x/y deleted file mode 100644 --- a/x/y +++ /dev/null @@ -1,1 +0,0 @@ -y1 # parent to branch: % hg st -C --rev . --rev 2 A a c A x/y R c % hg diff --git --rev . --rev 2 diff --git a/c b/a rename from c rename to a --- a/c +++ b/a @@ -1,2 +1,3 @@ a -4 +m1 +m2 diff --git a/x/y b/x/y new file mode 100644 --- /dev/null +++ b/x/y @@ -0,0 +1,1 @@ +y1 copy chain $ tb "hg cp a b" "hg cp b c" "hg cp c d" % add a 5 % hg ci -m t0 created new head % hg cp a b % hg ci -m t1 % hg cp b c % hg ci -m t2 % hg cp c d # working to parent: % hg st -C A d c % hg diff --git diff --git a/c b/d copy from c copy to d # working to root: % hg st -C --rev 0 M a A b a A c a A d a % hg diff --git --rev 0 diff --git a/a b/a --- a/a +++ b/a @@ -1,1 +1,2 @@ a +5 diff --git a/a b/b copy from a copy to b --- a/a +++ b/b @@ -1,1 +1,2 @@ a +5 diff --git a/a b/c copy from a copy to c --- a/a +++ b/c @@ -1,1 +1,2 @@ a +5 diff --git a/a b/d copy from a copy to d --- a/a +++ b/d @@ -1,1 +1,2 @@ a +5 # working to branch: % hg st -C --rev 2 M a A b a A c a A d a R x/y % hg diff --git --rev 2 diff --git a/a b/a --- a/a +++ b/a @@ -1,3 +1,2 @@ a -m1 -m2 +5 diff --git a/a b/b copy from a copy to b --- a/a +++ b/b @@ -1,3 +1,2 @@ a -m1 -m2 +5 diff --git a/a b/c copy from a copy to c --- a/a +++ b/c @@ -1,3 +1,2 @@ a -m1 -m2 +5 diff --git a/a b/d copy from a copy to d --- a/a +++ b/d @@ -1,3 +1,2 @@ a -m1 -m2 +5 diff --git a/x/y b/x/y deleted file mode 100644 --- a/x/y +++ /dev/null @@ -1,1 +0,0 @@ -y1 # root to parent: % hg st -C --rev 0 --rev . M a A b a A c a % hg diff --git --rev 0 --rev . diff --git a/a b/a --- a/a +++ b/a @@ -1,1 +1,2 @@ a +5 diff --git a/a b/b copy from a copy to b --- a/a +++ b/b @@ -1,1 +1,2 @@ a +5 diff --git a/a b/c copy from a copy to c --- a/a +++ b/c @@ -1,1 +1,2 @@ a +5 # parent to root: % hg st -C --rev . --rev 0 M a R b R c % hg diff --git --rev . --rev 0 diff --git a/a b/a --- a/a +++ b/a @@ -1,2 +1,1 @@ a -5 diff --git a/b b/b deleted file mode 100644 --- a/b +++ /dev/null @@ -1,2 +0,0 @@ -a -5 diff --git a/c b/c deleted file mode 100644 --- a/c +++ /dev/null @@ -1,2 +0,0 @@ -a -5 # branch to parent: % hg st -C --rev 2 --rev . M a A b a A c a R x/y % hg diff --git --rev 2 --rev . diff --git a/a b/a --- a/a +++ b/a @@ -1,3 +1,2 @@ a -m1 -m2 +5 diff --git a/a b/b copy from a copy to b --- a/a +++ b/b @@ -1,3 +1,2 @@ a -m1 -m2 +5 diff --git a/a b/c copy from a copy to c --- a/a +++ b/c @@ -1,3 +1,2 @@ a -m1 -m2 +5 diff --git a/x/y b/x/y deleted file mode 100644 --- a/x/y +++ /dev/null @@ -1,1 +0,0 @@ -y1 # parent to branch: % hg st -C --rev . --rev 2 M a A x/y R b R c % hg diff --git --rev . --rev 2 diff --git a/a b/a --- a/a +++ b/a @@ -1,2 +1,3 @@ a -5 +m1 +m2 diff --git a/b b/b deleted file mode 100644 --- a/b +++ /dev/null @@ -1,2 +0,0 @@ -a -5 diff --git a/c b/c deleted file mode 100644 --- a/c +++ /dev/null @@ -1,2 +0,0 @@ -a -5 diff --git a/x/y b/x/y new file mode 100644 --- /dev/null +++ b/x/y @@ -0,0 +1,1 @@ +y1 circular rename $ tb "add a a1" "hg mv a b" "hg mv b a" % add a 6 % hg ci -m t0 created new head % add a a1 % hg ci -m t1 % hg mv a b % hg ci -m t2 % hg mv b a # working to parent: % hg st -C A a b R b % hg diff --git diff --git a/b b/a rename from b rename to a # working to root: % hg st -C --rev 0 M a % hg diff --git --rev 0 diff --git a/a b/a --- a/a +++ b/a @@ -1,1 +1,3 @@ a +6 +a1 # working to branch: % hg st -C --rev 2 M a R x/y % hg diff --git --rev 2 diff --git a/a b/a --- a/a +++ b/a @@ -1,3 +1,3 @@ a -m1 -m2 +6 +a1 diff --git a/x/y b/x/y deleted file mode 100644 --- a/x/y +++ /dev/null @@ -1,1 +0,0 @@ -y1 # root to parent: % hg st -C --rev 0 --rev . A b a R a % hg diff --git --rev 0 --rev . diff --git a/a b/b rename from a rename to b --- a/a +++ b/b @@ -1,1 +1,3 @@ a +6 +a1 # parent to root: % hg st -C --rev . --rev 0 A a b R b % hg diff --git --rev . --rev 0 diff --git a/b b/a rename from b rename to a --- a/b +++ b/a @@ -1,3 +1,1 @@ a -6 -a1 # branch to parent: % hg st -C --rev 2 --rev . A b a R a R x/y % hg diff --git --rev 2 --rev . diff --git a/a b/b rename from a rename to b --- a/a +++ b/b @@ -1,3 +1,3 @@ a -m1 -m2 +6 +a1 diff --git a/x/y b/x/y deleted file mode 100644 --- a/x/y +++ /dev/null @@ -1,1 +0,0 @@ -y1 # parent to branch: % hg st -C --rev . --rev 2 A a b A x/y R b % hg diff --git --rev . --rev 2 diff --git a/b b/a rename from b rename to a --- a/b +++ b/a @@ -1,3 +1,3 @@ a -6 -a1 +m1 +m2 diff --git a/x/y b/x/y new file mode 100644 --- /dev/null +++ b/x/y @@ -0,0 +1,1 @@ +y1 directory move $ tb "hg mv x y" "add y/x x1" "add y/x x2" % add a 7 % hg ci -m t0 created new head % hg mv x y moving x/x to y/x % hg ci -m t1 % add y/x x1 % hg ci -m t2 % add y/x x2 # working to parent: % hg st -C M y/x % hg diff --git diff --git a/y/x b/y/x --- a/y/x +++ b/y/x @@ -1,2 +1,3 @@ x x1 +x2 # working to root: % hg st -C --rev 0 M a A y/x x/x R x/x % hg diff --git --rev 0 diff --git a/a b/a --- a/a +++ b/a @@ -1,1 +1,2 @@ a +7 diff --git a/x/x b/y/x rename from x/x rename to y/x --- a/x/x +++ b/y/x @@ -1,1 +1,3 @@ x +x1 +x2 # working to branch: % hg st -C --rev 2 M a A y/x x/x R x/x R x/y % hg diff --git --rev 2 diff --git a/a b/a --- a/a +++ b/a @@ -1,3 +1,2 @@ a -m1 -m2 +7 diff --git a/x/y b/x/y deleted file mode 100644 --- a/x/y +++ /dev/null @@ -1,1 +0,0 @@ -y1 diff --git a/x/x b/y/x rename from x/x rename to y/x --- a/x/x +++ b/y/x @@ -1,1 +1,3 @@ x +x1 +x2 # root to parent: % hg st -C --rev 0 --rev . M a A y/x x/x R x/x % hg diff --git --rev 0 --rev . diff --git a/a b/a --- a/a +++ b/a @@ -1,1 +1,2 @@ a +7 diff --git a/x/x b/y/x rename from x/x rename to y/x --- a/x/x +++ b/y/x @@ -1,1 +1,2 @@ x +x1 # parent to root: % hg st -C --rev . --rev 0 M a A x/x y/x R y/x % hg diff --git --rev . --rev 0 diff --git a/a b/a --- a/a +++ b/a @@ -1,2 +1,1 @@ a -7 diff --git a/y/x b/x/x rename from y/x rename to x/x --- a/y/x +++ b/x/x @@ -1,2 +1,1 @@ x -x1 # branch to parent: % hg st -C --rev 2 --rev . M a A y/x x/x R x/x R x/y % hg diff --git --rev 2 --rev . diff --git a/a b/a --- a/a +++ b/a @@ -1,3 +1,2 @@ a -m1 -m2 +7 diff --git a/x/y b/x/y deleted file mode 100644 --- a/x/y +++ /dev/null @@ -1,1 +0,0 @@ -y1 diff --git a/x/x b/y/x rename from x/x rename to y/x --- a/x/x +++ b/y/x @@ -1,1 +1,2 @@ x +x1 # parent to branch: % hg st -C --rev . --rev 2 M a A x/x y/x A x/y R y/x % hg diff --git --rev . --rev 2 diff --git a/a b/a --- a/a +++ b/a @@ -1,2 +1,3 @@ a -7 +m1 +m2 diff --git a/y/x b/x/x rename from y/x rename to x/x --- a/y/x +++ b/x/x @@ -1,2 +1,1 @@ x -x1 diff --git a/x/y b/x/y new file mode 100644 --- /dev/null +++ b/x/y @@ -0,0 +1,1 @@ +y1 Cannot implement unrelated branch with tb testing copies with unrelated branch $ hg init unrelated $ cd unrelated $ echo a >> a $ hg ci -Am adda adding a $ hg mv a b $ hg ci -m movea $ hg up -C null 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ echo a >> a $ hg ci -Am addunrelateda adding a created new head unrelated branch diff $ hg diff --git -r 2 -r 1 diff --git a/a b/a deleted file mode 100644 --- a/a +++ /dev/null @@ -1,1 +0,0 @@ -a diff --git a/b b/b new file mode 100644 --- /dev/null +++ b/b @@ -0,0 +1,1 @@ +a $ cd .. test for case where we didn't look sufficiently far back to find rename ancestor $ hg init diffstop $ cd diffstop $ echo > f $ hg ci -qAmf $ hg mv f g $ hg ci -m'f->g' $ hg up -qr0 $ touch x $ hg ci -qAmx $ echo f > f $ hg ci -qmf=f $ hg merge -q $ hg ci -mmerge $ hg log -G --template '{rev} {desc}' @ 4 merge |\ | o 3 f=f | | | o 2 x | | o | 1 f->g |/ o 0 f $ hg diff --git -r 2 diff --git a/f b/g rename from f rename to g --- a/f +++ b/g @@ -1,1 +1,1 @@ - +f $ cd .. Additional tricky linkrev case ------------------------------ If the first file revision after the diff base has a linkrev pointing to a changeset on another branch with a revision lower that the diff base, we can jump past the copy detection limit and fail to detect the rename. $ hg init diffstoplinkrev $ cd diffstoplinkrev $ touch f $ hg ci -Aqm 'empty f' Make a simple change $ echo change > f $ hg ci -m 'change f' Make a rename because we want to track renames. It is also important that the faulty linkrev is not only the "start" commit to ensure the linkrev will be used. $ hg mv f renamed $ hg ci -m renamed Make a second branch, we use a named branch to create a simple commit that does not touch f. $ hg up -qr 'desc(empty)' $ hg branch -q dev $ hg ci -Aqm dev Graft the initial change and the rename. As f was untouched, we reuse the same entry and the linkrev point to the older branch. $ hg graft -q 'desc(change)' $ hg graft -q 'desc(renamed)' $ hg log -G -T '{rev} {desc}' @ 5 renamed | o 4 change f | o 3 dev | | o 2 renamed | | | o 1 change f |/ o 0 empty f The copy tracking should still reach rev 3 (branch creation). accessing the parent of 5 (renamed) should not jump use to revision 1. $ hg diff --git -r 'desc(dev)' -r . diff --git a/f b/renamed rename from f rename to renamed --- a/f +++ b/renamed @@ -0,0 +1,1 @@ +change Check debug output for copy tracing $ hg status --copies --rev 'desc(dev)' --rev . --config devel.debug.copies=yes --debug debug.copies: searching copies from a51f36ab1704 to 1f4aa1fd627b debug.copies: search mode: forward debug.copies: looking into rename from a51f36ab1704 to 1f4aa1fd627b debug.copies: missing files to search: 1 debug.copies: tracing file: renamed debug.copies: rename of: f debug.copies: time: * seconds (glob) A renamed f R f Check that merging across the rename works $ echo modified >> renamed $ hg co -m 4 merging renamed and f to f 0 files updated, 1 files merged, 0 files removed, 0 files unresolved $ cd ..