phases: sparsify phaseroots and phasesets
As final step of dealing with the holes in the phase numbers, make
phaseroots and phasesets both dictionaries indexed by the phase number.
Further adjust the interface of the C module by pushing the node to
revision mapping down as it is cheaper on the C side to deal with
revision numbers.
Overall, the patch series improves a no-change "hg up" for my NetBSD test
repository from 4.7s to 1.3s.
Differential Revision: https://phab.mercurial-scm.org/D8698
#require execbit
$ rm -rf a
$ hg init a
$ cd a
$ echo foo > foo
$ hg ci -qAm0
$ echo toremove > toremove
$ echo todelete > todelete
$ chmod +x foo toremove todelete
$ hg ci -qAm1
Test that local removed/deleted, remote removed works with flags
$ hg rm toremove
$ rm todelete
$ hg co -q 0
$ echo dirty > foo
$ hg up -c
abort: uncommitted changes
[255]
$ hg up -q
$ cat foo
dirty
$ hg st -A
M foo
C todelete
C toremove
Validate update of standalone execute bit change:
$ hg up -C 0
1 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ chmod -x foo
$ hg ci -m removeexec
nothing changed
[1]
$ hg up -C 0
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg up
3 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg st
$ cd ..