Mercurial > hg
view tests/test-narrow-clone-stream.t @ 48454:473af5cbc209
rhg: Add support for `rhg status --copies`
Copy sources are collected during `status()` rather than after the fact like
in Python, because `status()` takes a `&mut` exclusive reference to the dirstate map
(in order to potentially mutate it for directory mtimes) and returns `Cow<'_, HgPath>`
that borrow the dirstate map.
Even though with `Cow` only some shared borrows remain, the still extend the same
lifetime of the initial `&mut` so the dirstate map cannot be borrowed again
to access copy sources after the fact:
https://doc.rust-lang.org/nomicon/lifetime-mismatch.html#limits-of-lifetimes
Additionally, collecting copy sources during the dirstate tree traversal that
`status()` already does avoids the cost of another traversal or other lookups
(though I haven’t benchmarked that cost).
Differential Revision: https://phab.mercurial-scm.org/D11899
author | Simon Sapin <simon.sapin@octobus.net> |
---|---|
date | Fri, 10 Dec 2021 16:18:58 +0100 |
parents | f35529784079 |
children | 5e6542143d40 |
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#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 $ cat .hg/requires 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 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 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