hg-cpython: fallback when encountering an unknown matcher
At this point in the process, nothing user-visible has happened, it is still
safe to fallback. This can happen now that we're going to be using
"container matchers" like unionmatcher and intersectionmatcher.
This is easier and less error-prone than recursive checking beforehand since
only the presence of a transformation case will allow the process to continue.
#testcases tree flat-fncache flat-nofncache
Tests narrow stream clones
$ . "$TESTDIR/narrow-library.sh"
#if tree
$ cat << EOF >> $HGRCPATH
> [experimental]
> treemanifest = 1
> EOF
#endif
#if flat-nofncache
$ cat << EOF >> $HGRCPATH
> [format]
> usefncache = 0
> EOF
#endif
Server setup
$ hg init master
$ cd master
$ mkdir dir
$ mkdir dir/src
$ cd dir/src
$ for x in `$TESTDIR/seq.py 20`; do echo $x > "F$x"; hg add "F$x"; hg commit -m "Commit src $x"; done
$ cd ..
$ mkdir tests
$ cd tests
$ for x in `$TESTDIR/seq.py 20`; do echo $x > "F$x"; hg add "F$x"; hg commit -m "Commit src $x"; done
$ cd ../../..
Trying to stream clone when the server does not support it
$ hg clone --narrow ssh://user@dummy/master narrow --noupdate --include "dir/src/F10" --stream
streaming all changes
remote: abort: server does not support narrow stream clones
abort: pull failed on remote
[100]
Enable stream clone on the server
$ echo "[experimental]" >> master/.hg/hgrc
$ echo "server.stream-narrow-clones=True" >> master/.hg/hgrc
Cloning a specific file when stream clone is supported
$ hg clone --narrow ssh://user@dummy/master narrow --noupdate --include "dir/src/F10" --stream
streaming all changes
* files to transfer, * KB of data (glob)
transferred * KB in * seconds (* */sec) (glob)
$ cd narrow
$ ls -A
.hg
$ hg tracked
I path:dir/src/F10
Making sure we have the correct set of requirements
$ hg debugrequires
dotencode (tree !)
dotencode (flat-fncache !)
dirstate-v2 (dirstate-v2 !)
fncache (tree !)
fncache (flat-fncache !)
generaldelta
narrowhg-experimental
persistent-nodemap (rust !)
revlog-compression-zstd (zstd !)
revlogv1
share-safe
sparserevlog
store
treemanifest (tree !)
Making sure store has the required files
$ ls .hg/store/
00changelog.i
00manifest.i
data
fncache (tree !)
fncache (flat-fncache !)
meta (tree !)
narrowspec
requires
undo
undo.backupfiles
undo.narrowspec
undo.phaseroots
Checking that repository has all the required data and not broken
$ hg verify
checking changesets
checking manifests
checking directory manifests (tree !)
crosschecking files in changesets and manifests
checking files
checked 40 changesets with 1 changes to 1 files