destutil: show message about other branch heads, even if on a closed head
Before this patch, bare "hg update" displays message below, if there
is at least one non-closed branch head other than current parent:
1. 'XX other heads for branch "BRANCH"' message, if current parent is
on a non-closed branch head
This suggests user to invoke "hg heads" or so for merging them.
2. no message, if current parent is on a closed branch head
At this patch, bare "hg update" might choose closed branch head
as update destination, and it causes this situation easily.
3. no message, otherwise (= current parent isn't on any branch head)
'XX other heads for branch "BRANCH"' should be displayed also in #2
case above, because user might overlook other non-closed branch heads.
This patch gets a list of all branch heads regardless of closed-ness
of it, and uses it (= 'allheads') to distinguish #1/#2 from #3 above.
Test encode/decode filters
$ hg init
$ cat > .hg/hgrc <<EOF
> [encode]
> not.gz = tr [:lower:] [:upper:]
> *.gz = gzip -d
> [decode]
> not.gz = tr [:upper:] [:lower:]
> *.gz = gzip
> EOF
$ echo "this is a test" | gzip > a.gz
$ echo "this is a test" > not.gz
$ hg add *
$ hg ci -m "test"
no changes
$ hg status
$ touch *
no changes
$ hg status
check contents in repo are encoded
$ hg debugdata a.gz 0
this is a test
$ hg debugdata not.gz 0
THIS IS A TEST
check committed content was decoded
$ gunzip < a.gz
this is a test
$ cat not.gz
this is a test
$ rm *
$ hg co -C
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
check decoding of our new working dir copy
$ gunzip < a.gz
this is a test
$ cat not.gz
this is a test
check hg cat operation
$ hg cat a.gz
this is a test
$ hg cat --decode a.gz | gunzip
this is a test
$ mkdir subdir
$ cd subdir
$ hg -R .. cat ../a.gz
this is a test
$ hg -R .. cat --decode ../a.gz | gunzip
this is a test
$ cd ..