branchcache: skip entries that are topological heads in the on disk file
In the majority of cases, topological heads are also branch heads. We have
efficient way to get the topological heads and efficient way to retrieve
their branch information. So there is little value in putting them in the branch
cache file explicitly. On the contrary, writing them explicitly tend to create
very large cache file that are inefficient to read and update.
So the branch cache v3 format is no longer including them. This changeset focus
on the format aspect and have no focus on the performance aspect. We will cover
that later.
#require curses
#testcases committed wdir
Revert interactive tests with the Curses interface
$ cat <<EOF >> $HGRCPATH
> [ui]
> interactive = true
> interface = curses
> [experimental]
> crecordtest = testModeCommands
> EOF
TODO: Make a curses version of the other tests from test-revert-interactive.t.
#if committed
$ maybe_commit() {
> hg ci "$@"
> }
$ do_revert() {
> hg revert -ir'.^'
> }
#else
$ maybe_commit() {
> true
> }
$ do_revert() {
> hg revert -i
> }
#endif
When a line without EOL is selected during "revert -i"
$ hg init $TESTTMP/revert-i-curses-eol
$ cd $TESTTMP/revert-i-curses-eol
$ echo 0 > a
$ hg ci -qAm 0
$ printf 1 >> a
$ maybe_commit -qAm 1
$ cat a
0
1 (no-eol)
$ cat <<EOF >testModeCommands
> c
> EOF
$ do_revert
reverting a
$ cat a
0
When a selected line is reverted to have no EOL
$ hg init $TESTTMP/revert-i-curses-eol2
$ cd $TESTTMP/revert-i-curses-eol2
$ printf 0 > a
$ hg ci -qAm 0
$ echo 0 > a
$ maybe_commit -qAm 1
$ cat a
0
$ cat <<EOF >testModeCommands
> c
> EOF
$ do_revert
reverting a
$ cat a
0 (no-eol)