wireproto: expose repository formats via capabilities
Servers need to expose their set of repository storage requirements
in order to facilitate streaming clones (clients need to know
if they are capable of reading the raw storage files that the
server exposes).
Differential Revision: https://phab.mercurial-scm.org/D3335
Test attempting a narrow clone against a server that doesn't support narrowhg.
$ . "$TESTDIR/narrow-library.sh"
$ hg init master
$ cd master
$ for x in `$TESTDIR/seq.py 10`; do
> echo $x > "f$x"
> hg add "f$x"
> hg commit -m "Add $x"
> done
$ hg serve -a localhost -p $HGPORT1 --config extensions.narrow=! -d \
> --pid-file=hg.pid
$ cat hg.pid >> "$DAEMON_PIDS"
$ hg serve -a localhost -p $HGPORT2 -d --pid-file=hg.pid
$ cat hg.pid >> "$DAEMON_PIDS"
Verify that narrow is advertised in the bundle2 capabilities:
$ echo hello | hg -R . serve --stdio | \
> $PYTHON -c "from __future__ import print_function; import sys, urllib; print(urllib.unquote_plus(list(sys.stdin)[1]))" | grep narrow
narrow=v0
$ cd ..
$ hg clone --narrow --include f1 http://localhost:$HGPORT1/ narrowclone
requesting all changes
abort: server doesn't support narrow clones
[255]
Make a narrow clone (via HGPORT2), then try to narrow and widen
into it (from HGPORT1) to prove that narrowing is fine and widening fails
gracefully:
$ hg clone -r 0 --narrow --include f1 http://localhost:$HGPORT2/ narrowclone
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
new changesets * (glob)
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd narrowclone
$ hg tracked --addexclude f2 http://localhost:$HGPORT1/
comparing with http://localhost:$HGPORT1/
searching for changes
looking for local changes to affected paths
$ hg tracked --addinclude f1 http://localhost:$HGPORT1/
comparing with http://localhost:$HGPORT1/
searching for changes
no changes found
abort: server doesn't support narrow clones
[255]