Mercurial > hg
view tests/test-narrow-shallow.t @ 39494:e72130f58f5d
snapshot: consider all snapshots in the parents' chains
There are no reasons to only consider full snapshot as a possible base for an
intermediate snapshot. Now that the basic principles have been set, we can
start adding more levels of snapshots.
We now consider all snapshots in the parent's chains (full or intermediate).
This creates a chain of intermediate snapshots, each smaller than the previous
one.
# Effect On The Test Repository
In the test repository, we can see a decrease in the revlog size and slightly
shorter delta chain.
However, that approach creates snapshots more frequently, increasing the risk
of ending into problematic cases in very branchy repositories (not triggered
by the test repository). The next changesets will remove that risk by adding
logic that increases deltas reuse.
author | Boris Feld <boris.feld@octobus.net> |
---|---|
date | Fri, 07 Sep 2018 11:17:30 -0400 |
parents | 8d033b348d85 |
children | 34f2c634c8f6 |
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#require no-reposimplestore $ . "$TESTDIR/narrow-library.sh" $ hg init master $ cd master $ cat >> .hg/hgrc <<EOF > [narrow] > serveellipses=True > EOF $ for x in `$TESTDIR/seq.py 10` > do > echo $x > "f$x" > hg add "f$x" > done $ hg commit -m "Add root files" $ mkdir d1 d2 $ for x in `$TESTDIR/seq.py 10` > do > echo d1/$x > "d1/f$x" > hg add "d1/f$x" > echo d2/$x > "d2/f$x" > hg add "d2/f$x" > done $ hg commit -m "Add d1 and d2" $ for x in `$TESTDIR/seq.py 10` > do > echo f$x rev2 > "f$x" > echo d1/f$x rev2 > "d1/f$x" > echo d2/f$x rev2 > "d2/f$x" > hg commit -m "Commit rev2 of f$x, d1/f$x, d2/f$x" > done $ cd .. narrow and shallow clone the d2 directory $ hg clone --narrow ssh://user@dummy/master shallow --include "d2" --depth 2 requesting all changes adding changesets adding manifests adding file changes added 4 changesets with 13 changes to 10 files new changesets *:* (glob) updating to branch default 10 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd shallow $ hg log -T '{rev}{if(ellipsis,"...")}: {desc}\n' 3: Commit rev2 of f10, d1/f10, d2/f10 2: Commit rev2 of f9, d1/f9, d2/f9 1: Commit rev2 of f8, d1/f8, d2/f8 0...: Commit rev2 of f7, d1/f7, d2/f7 $ hg update 0 3 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cat d2/f7 d2/f8 d2/f7 rev2 d2/8 $ cd .. change every upstream file once $ cd master $ for x in `$TESTDIR/seq.py 10` > do > echo f$x rev3 > "f$x" > echo d1/f$x rev3 > "d1/f$x" > echo d2/f$x rev3 > "d2/f$x" > hg commit -m "Commit rev3 of f$x, d1/f$x, d2/f$x" > done $ cd .. pull new changes with --depth specified. There were 10 changes to the d2 directory but the shallow pull should only fetch 3. $ cd shallow $ hg pull --depth 2 pulling from ssh://user@dummy/master searching for changes adding changesets adding manifests adding file changes added 4 changesets with 10 changes to 10 files new changesets *:* (glob) (run 'hg update' to get a working copy) $ hg log -T '{rev}{if(ellipsis,"...")}: {desc}\n' 7: Commit rev3 of f10, d1/f10, d2/f10 6: Commit rev3 of f9, d1/f9, d2/f9 5: Commit rev3 of f8, d1/f8, d2/f8 4...: Commit rev3 of f7, d1/f7, d2/f7 3: Commit rev2 of f10, d1/f10, d2/f10 2: Commit rev2 of f9, d1/f9, d2/f9 1: Commit rev2 of f8, d1/f8, d2/f8 0...: Commit rev2 of f7, d1/f7, d2/f7 $ hg update 4 merging d2/f1 merging d2/f2 merging d2/f3 merging d2/f4 merging d2/f5 merging d2/f6 merging d2/f7 3 files updated, 7 files merged, 0 files removed, 0 files unresolved $ cat d2/f7 d2/f8 d2/f7 rev3 d2/f8 rev2 $ hg update 7 3 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cat d2/f10 d2/f10 rev3 $ cd .. cannot clone with zero or negative depth $ hg clone --narrow ssh://user@dummy/master bad --include "d2" --depth 0 requesting all changes remote: abort: depth must be positive, got 0 abort: pull failed on remote [255] $ hg clone --narrow ssh://user@dummy/master bad --include "d2" --depth -1 requesting all changes remote: abort: depth must be positive, got -1 abort: pull failed on remote [255]