annotate: increase refcount of each revisions correctly (issue3841)
Before this patch, refcount (managed in "needed") of parents of each
revisions in "visit" is increased, only when parent is not annotated
yet (examined by "p not in hist").
But this causes less refcount of the revision like "A" in the tree
below ("A" is assumed as the second parent of "C"):
A --- B --- C
\ /
\-----/
Steps of annotation for "C" in this case are shown below:
1. for "C"
1.1 increase refcount of "B"
1.2 increase refcount of "A" (=> 1)
1.3 defer annotation for "C"
2. for "A"
2.1 annotate for "A" (=> put result into "hist[A]")
2.2 clear "pcache[A]" ("pcache[A] = []")
3. for "B"
3.1 not increase refcount of "A", because "A not in hist" is False
3.2 annotate for "B"
3.3 decrease refcount of "A" (=> 0)
3.4 delete "hist[A]", even though "A" is still needed by "C"
3.5 clear "pcache[B]"
4. for "C", again
4.1 not increase refcount of "B", because "B not in hist" is False
4.2 increase refcount of "A" (=> 1)
4.3 defer annotation for "C"
5. for "A", again
5.1 annotate for "A" (=> put result into "hist[A]", again)
5.2 clear "pcache[A]"
6. for "C", once again
6.1 not increase refcount of "B", because "B not in hist" is False
6.2 not increase refcount of "A", because "A not in hist" is False
6.3 annotate for "C"
6.4 decrease refcount of "A", and delete "hist[A]"
6.5 decrease refcount of "B", and delete "hist[B]"
6.6 clear "pcache[C]"
At step (5.1), annotation for "A" mis-recognizes that all lines are
created at "A", because "pcache[A]" already cleared at step (2.2)
prevents from scanning ancestors of "A".
So, annotation for "C" or its descendants loses information about "A"
or its ancestors.
The root cause of this problem is that refcount of "A" is decreased at
step (3.3), even though it isn't increased at step (3.1).
To increase refcount correctly, this patch increases refcount of each
parents of each revisions:
- regardless of "p not in hist" or not, and
- only once for each revisions in "visit" (by "not pcached")
In fact, this problem should occur only on legacy repositories in
which a filelog includes the merging between the revision and its
ancestor (as the second parent), because:
- tree is scanned in depth-first
without such merging, revisions in "visit" refer different
revisions as parent each other
- recent Mercurial doesn't allow such merging
changelog and manifest can include such merging someway, but
filelogs can't, because "localrepository._filecommit()" converts
such merging request to linear history.
This patch tests merging cases below: these cases are from filelog of
"mercurial/commands.py" in the repository of Mercurial itself.
- both parents are same
10 --- 11 --- 12
\_/
filelogrev: changesetid:
10 00ea3613f82c
11 fc4a6e5b5812
12 4f802588cdfb
- the second parent is also ancestor of the first one
37 --- 38 --- 39 --- 40
\________/
filelogrev: changesetid:
37 f8d56da6ac8f
38 38919e1c254d
39 d3400605d246
40 f06a4a3b86a7
$ hg init repo1
$ cd repo1
$ mkdir a b a/1 b/1 b/2
$ touch in_root a/in_a b/in_b a/1/in_a_1 b/1/in_b_1 b/2/in_b_2
hg status in repo root:
$ hg status
? a/1/in_a_1
? a/in_a
? b/1/in_b_1
? b/2/in_b_2
? b/in_b
? in_root
hg status . in repo root:
$ hg status .
? a/1/in_a_1
? a/in_a
? b/1/in_b_1
? b/2/in_b_2
? b/in_b
? in_root
$ hg status --cwd a
? a/1/in_a_1
? a/in_a
? b/1/in_b_1
? b/2/in_b_2
? b/in_b
? in_root
$ hg status --cwd a .
? 1/in_a_1
? in_a
$ hg status --cwd a ..
? 1/in_a_1
? in_a
? ../b/1/in_b_1
? ../b/2/in_b_2
? ../b/in_b
? ../in_root
$ hg status --cwd b
? a/1/in_a_1
? a/in_a
? b/1/in_b_1
? b/2/in_b_2
? b/in_b
? in_root
$ hg status --cwd b .
? 1/in_b_1
? 2/in_b_2
? in_b
$ hg status --cwd b ..
? ../a/1/in_a_1
? ../a/in_a
? 1/in_b_1
? 2/in_b_2
? in_b
? ../in_root
$ hg status --cwd a/1
? a/1/in_a_1
? a/in_a
? b/1/in_b_1
? b/2/in_b_2
? b/in_b
? in_root
$ hg status --cwd a/1 .
? in_a_1
$ hg status --cwd a/1 ..
? in_a_1
? ../in_a
$ hg status --cwd b/1
? a/1/in_a_1
? a/in_a
? b/1/in_b_1
? b/2/in_b_2
? b/in_b
? in_root
$ hg status --cwd b/1 .
? in_b_1
$ hg status --cwd b/1 ..
? in_b_1
? ../2/in_b_2
? ../in_b
$ hg status --cwd b/2
? a/1/in_a_1
? a/in_a
? b/1/in_b_1
? b/2/in_b_2
? b/in_b
? in_root
$ hg status --cwd b/2 .
? in_b_2
$ hg status --cwd b/2 ..
? ../1/in_b_1
? in_b_2
? ../in_b
$ cd ..
$ hg init repo2
$ cd repo2
$ touch modified removed deleted ignored
$ echo "^ignored$" > .hgignore
$ hg ci -A -m 'initial checkin'
adding .hgignore
adding deleted
adding modified
adding removed
$ touch modified added unknown ignored
$ hg add added
$ hg remove removed
$ rm deleted
hg status:
$ hg status
A added
R removed
! deleted
? unknown
hg status modified added removed deleted unknown never-existed ignored:
$ hg status modified added removed deleted unknown never-existed ignored
never-existed: * (glob)
A added
R removed
! deleted
? unknown
$ hg copy modified copied
hg status -C:
$ hg status -C
A added
A copied
modified
R removed
! deleted
? unknown
hg status -A:
$ hg status -A
A added
A copied
modified
R removed
! deleted
? unknown
I ignored
C .hgignore
C modified
$ echo "^ignoreddir$" > .hgignore
$ mkdir ignoreddir
$ touch ignoreddir/file
hg status ignoreddir/file:
$ hg status ignoreddir/file
hg status -i ignoreddir/file:
$ hg status -i ignoreddir/file
I ignoreddir/file
$ cd ..
Check 'status -q' and some combinations
$ hg init repo3
$ cd repo3
$ touch modified removed deleted ignored
$ echo "^ignored$" > .hgignore
$ hg commit -A -m 'initial checkin'
adding .hgignore
adding deleted
adding modified
adding removed
$ touch added unknown ignored
$ hg add added
$ echo "test" >> modified
$ hg remove removed
$ rm deleted
$ hg copy modified copied
Run status with 2 different flags.
Check if result is the same or different.
If result is not as expected, raise error
$ assert() {
> hg status $1 > ../a
> hg status $2 > ../b
> if diff ../a ../b > /dev/null; then
> out=0
> else
> out=1
> fi
> if [ $3 -eq 0 ]; then
> df="same"
> else
> df="different"
> fi
> if [ $out -ne $3 ]; then
> echo "Error on $1 and $2, should be $df."
> fi
> }
Assert flag1 flag2 [0-same | 1-different]
$ assert "-q" "-mard" 0
$ assert "-A" "-marduicC" 0
$ assert "-qA" "-mardcC" 0
$ assert "-qAui" "-A" 0
$ assert "-qAu" "-marducC" 0
$ assert "-qAi" "-mardicC" 0
$ assert "-qu" "-u" 0
$ assert "-q" "-u" 1
$ assert "-m" "-a" 1
$ assert "-r" "-d" 1
$ cd ..
$ hg init repo4
$ cd repo4
$ touch modified removed deleted
$ hg ci -q -A -m 'initial checkin'
$ touch added unknown
$ hg add added
$ hg remove removed
$ rm deleted
$ echo x > modified
$ hg copy modified copied
$ hg ci -m 'test checkin' -d "1000001 0"
$ rm *
$ touch unrelated
$ hg ci -q -A -m 'unrelated checkin' -d "1000002 0"
hg status --change 1:
$ hg status --change 1
M modified
A added
A copied
R removed
hg status --change 1 unrelated:
$ hg status --change 1 unrelated
hg status -C --change 1 added modified copied removed deleted:
$ hg status -C --change 1 added modified copied removed deleted
M modified
A added
A copied
modified
R removed
hg status -A --change 1 and revset:
$ hg status -A --change '1|1'
M modified
A added
A copied
modified
R removed
C deleted
$ cd ..
hg status of binary file starting with '\1\n', a separator for metadata:
$ hg init repo5
$ cd repo5
>>> open("010a", "wb").write("\1\nfoo")
$ hg ci -q -A -m 'initial checkin'
$ hg status -A
C 010a
>>> open("010a", "wb").write("\1\nbar")
$ hg status -A
M 010a
$ hg ci -q -m 'modify 010a'
$ hg status -A --rev 0:1
M 010a
$ touch empty
$ hg ci -q -A -m 'add another file'
$ hg status -A --rev 1:2 010a
C 010a
$ cd ..
test "hg status" with "directory pattern" which matches against files
only known on target revision.
$ hg init repo6
$ cd repo6
$ echo a > a.txt
$ hg add a.txt
$ hg commit -m '#0'
$ mkdir -p 1/2/3/4/5
$ echo b > 1/2/3/4/5/b.txt
$ hg add 1/2/3/4/5/b.txt
$ hg commit -m '#1'
$ hg update -C 0 > /dev/null
$ hg status -A
C a.txt
the directory matching against specified pattern should be removed,
because directory existence prevents 'dirstate.walk()' from showing
warning message about such pattern.
$ test ! -d 1
$ hg status -A --rev 1 1/2/3/4/5/b.txt
R 1/2/3/4/5/b.txt
$ hg status -A --rev 1 1/2/3/4/5
R 1/2/3/4/5/b.txt
$ hg status -A --rev 1 1/2/3
R 1/2/3/4/5/b.txt
$ hg status -A --rev 1 1
R 1/2/3/4/5/b.txt
#if windows
$ hg --config ui.slash=false status -A --rev 1 1
R 1\2\3\4\5\b.txt
#endif
$ cd ..