hgweb: make "comparison" get parent from not filelog but changelog
Before this patch, "comparison" shows unexpected result, when the
specified file is not modified in the specified revision, even though
"diff" shows empty result.
When REV doesn't change specified FILE, "diff" shows:
"hg diff -c REV FILE"
but "comparison" shows:
"hg diff -c `hg parents -r REV FILE` FILE"
In other words, the former gets parent from changelog, but the latter
gets one from filelog.
This may confuse users browsing (and switching "diff" and
"comparison" of) files in the specified revision.
This patch makes "comparison" get parent from not filelog but
changelog, to show "hg diff -c REV FILE" in both "diff" and
"comparison" pages.
test stripping of filelogs where the linkrev doesn't always increase
$ echo '[extensions]' >> $HGRCPATH
$ echo 'strip =' >> $HGRCPATH
$ hg init orig
$ cd orig
$ commit()
> {
> hg up -qC null
> count=1
> for i in "$@"; do
> for f in $i; do
> echo $count > $f
> done
> count=`expr $count + 1`
> done
> hg commit -qAm "$*"
> }
2 1 0 2 0 1 2
$ commit '201 210'
$ commit '102 120' '210'
$ commit '021'
$ commit '201' '021 120'
$ commit '012 021' '102 201' '120 210'
$ commit 'manifest-file'
$ commit '102 120' '012 210' '021 201'
$ commit '201 210' '021 120' '012 102'
$ HGUSER=another-user; export HGUSER
$ commit 'manifest-file'
$ commit '012' 'manifest-file'
$ cd ..
$ hg clone -q -U -r -1 -r -2 -r -3 -r -4 -r -6 orig crossed
$ cd crossed
$ hg debugindex --manifest
rev offset length ..... linkrev nodeid p1 p2 (re)
0 0 112 ..... 0 6f105cbb914d 000000000000 000000000000 (re)
1 112 56 ..... 3 1b55917b3699 000000000000 000000000000 (re)
2 168 123 ..... 1 8f3d04e263e5 000000000000 000000000000 (re)
3 291 122 ..... 2 f0ef8726ac4f 000000000000 000000000000 (re)
4 413 87 ..... 4 0b76e38b4070 000000000000 000000000000 (re)
$ for i in 012 021 102 120 201 210 manifest-file; do
> echo $i
> hg debugindex $i
> echo
> done
012
rev offset length ..... linkrev nodeid p1 p2 (re)
0 0 3 ..... 0 b8e02f643373 000000000000 000000000000 (re)
1 3 3 ..... 1 5d9299349fc0 000000000000 000000000000 (re)
2 6 3 ..... 2 2661d26c6496 000000000000 000000000000 (re)
021
rev offset length ..... linkrev nodeid p1 p2 (re)
0 0 3 ..... 0 b8e02f643373 000000000000 000000000000 (re)
1 3 3 ..... 2 5d9299349fc0 000000000000 000000000000 (re)
2 6 3 ..... 1 2661d26c6496 000000000000 000000000000 (re)
102
rev offset length ..... linkrev nodeid p1 p2 (re)
0 0 3 ..... 1 b8e02f643373 000000000000 000000000000 (re)
1 3 3 ..... 0 5d9299349fc0 000000000000 000000000000 (re)
2 6 3 ..... 2 2661d26c6496 000000000000 000000000000 (re)
120
rev offset length ..... linkrev nodeid p1 p2 (re)
0 0 3 ..... 1 b8e02f643373 000000000000 000000000000 (re)
1 3 3 ..... 2 5d9299349fc0 000000000000 000000000000 (re)
2 6 3 ..... 0 2661d26c6496 000000000000 000000000000 (re)
201
rev offset length ..... linkrev nodeid p1 p2 (re)
0 0 3 ..... 2 b8e02f643373 000000000000 000000000000 (re)
1 3 3 ..... 0 5d9299349fc0 000000000000 000000000000 (re)
2 6 3 ..... 1 2661d26c6496 000000000000 000000000000 (re)
210
rev offset length ..... linkrev nodeid p1 p2 (re)
0 0 3 ..... 2 b8e02f643373 000000000000 000000000000 (re)
1 3 3 ..... 1 5d9299349fc0 000000000000 000000000000 (re)
2 6 3 ..... 0 2661d26c6496 000000000000 000000000000 (re)
manifest-file
rev offset length ..... linkrev nodeid p1 p2 (re)
0 0 3 ..... 3 b8e02f643373 000000000000 000000000000 (re)
1 3 3 ..... 4 5d9299349fc0 000000000000 000000000000 (re)
$ cd ..
$ for i in 0 1 2 3 4; do
> hg clone -q -U --pull crossed $i
> echo "% Trying to strip revision $i"
> hg --cwd $i strip $i
> echo "% Verifying"
> hg --cwd $i verify
> echo
> done
% Trying to strip revision 0
saved backup bundle to $TESTTMP/0/.hg/strip-backup/*-backup.hg (glob)
% Verifying
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
7 files, 4 changesets, 15 total revisions
% Trying to strip revision 1
saved backup bundle to $TESTTMP/1/.hg/strip-backup/*-backup.hg (glob)
% Verifying
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
7 files, 4 changesets, 14 total revisions
% Trying to strip revision 2
saved backup bundle to $TESTTMP/2/.hg/strip-backup/*-backup.hg (glob)
% Verifying
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
7 files, 4 changesets, 14 total revisions
% Trying to strip revision 3
saved backup bundle to $TESTTMP/3/.hg/strip-backup/*-backup.hg (glob)
% Verifying
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
7 files, 4 changesets, 19 total revisions
% Trying to strip revision 4
saved backup bundle to $TESTTMP/4/.hg/strip-backup/*-backup.hg (glob)
% Verifying
checking changesets
checking manifests
crosschecking files in changesets and manifests
checking files
7 files, 4 changesets, 19 total revisions