subrepo/svn: fix checked out rev number retrieval (issue2968)
The initial version was to take the "Revision" field from svn info. It works
but produces false positive when parent paths are being moved or unrelated
changes are being committed, causing it to change while the svn checkout itself
remains the same. To avoid spurious commit, we took "Revision" and "Last
Changed Rev" for general comparison and kept the latter to answer "what is your
revision?" question. This is better but fails when the subrepo path exists at
"Revision" but not at "Last Changed Rev". This patch adds a check for this, and
returns "Revision" if the path does not exist. We try to avoid doing this as
much as possible at it implies an extra, *remote* call.
$ "$TESTDIR/hghave" symlink || exit 80
$ hg init
should fail
$ hg add .hg/00changelog.i
abort: path contains illegal component: .hg/00changelog.i (glob)
[255]
$ mkdir a
$ echo a > a/a
$ hg ci -Ama
adding a/a
$ ln -s a b
$ echo b > a/b
should fail
$ hg add b/b
abort: path 'b/b' traverses symbolic link 'b' (glob)
[255]
should succeed
$ hg add b
should still fail - maybe
$ hg add b/b
abort: path 'b/b' traverses symbolic link 'b' (glob)
[255]
unbundle tampered bundle
$ hg init target
$ cd target
$ hg unbundle "$TESTDIR/bundles/tampered.hg"
adding changesets
adding manifests
adding file changes
added 5 changesets with 6 changes to 6 files (+4 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
attack .hg/test
$ hg manifest -r0
.hg/test
$ hg update -Cr0
abort: path contains illegal component: .hg/test
[255]
attack foo/.hg/test
$ hg manifest -r1
foo/.hg/test
$ hg update -Cr1
abort: path 'foo/.hg/test' is inside nested repo 'foo'
[255]
attack back/test where back symlinks to ..
$ hg manifest -r2
back
back/test
$ hg update -Cr2
abort: path 'back/test' traverses symbolic link 'back'
[255]
attack ../test
$ hg manifest -r3
../test
$ hg update -Cr3
abort: path contains illegal component: ../test
[255]
attack /tmp/test
$ hg manifest -r4
/tmp/test
$ hg update -Cr4
abort: *: $TESTTMP/target//tmp/test (glob)
[255]