convert: avoid updating tags when there is nothing new
Previously, when converting from a mercurial repo there would be an extraneous
commit at the end of the convert process that would rewrite tags. Now, we check
if there are any new tags before doing this rewriting.
$ hg init
audit of .hg
$ hg add .hg/00changelog.i
abort: path contains illegal component: .hg/00changelog.i (glob)
[255]
#if symlink
Symlinks
$ mkdir a
$ echo a > a/a
$ hg ci -Ama
adding a/a
$ ln -s a b
$ echo b > a/b
$ hg add b/b
abort: path 'b/b' traverses symbolic link 'b' (glob)
[255]
$ hg add b
should still fail - maybe
$ hg add b/b
abort: path 'b/b' traverses symbolic link 'b' (glob)
[255]
#endif
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 (glob)
[255]
attack foo/.hg/test
$ hg manifest -r1
foo/.hg/test
$ hg update -Cr1
abort: path 'foo/.hg/test' is inside nested repo 'foo' (glob)
[255]
attack back/test where back symlinks to ..
$ hg manifest -r2
back
back/test
#if symlink
$ hg update -Cr2
abort: path 'back/test' traverses symbolic link 'back'
[255]
#else
('back' will be a file and cause some other system specific error)
$ hg update -Cr2
abort: * (glob)
[255]
#endif
attack ../test
$ hg manifest -r3
../test
$ hg update -Cr3
abort: path contains illegal component: ../test (glob)
[255]
attack /tmp/test
$ hg manifest -r4
/tmp/test
$ hg update -Cr4
abort: path contains illegal component: /tmp/test (glob)
[255]
$ cd ..