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tests/test-remotefilelog-bundles.t
author Pierre-Yves David <pierre-yves.david@octobus.net>
Tue, 09 Apr 2024 02:54:12 +0200
changeset 51577 b5d494f7d28a
parent 46847 47a9527731c3
permissions -rw-r--r--
push: rework the computation of fallbackheads to be correct The previous computation tried to be smart but ended up being wrong. This was caught by phase movement test while reworking the phase discovery logic to be faster. The previous logic was failing to catch case where the pushed set was not based on a common heads (i.e. when the discovery seemed to have "over discovered" content, outside the pushed set) In the following graph, `e` is a common head and we `hg push -r f`. We need to detect `c` as a fallback heads and we previous failed to do so:: e | d f |/ c | b | a The performance impact of the change seems minimal. On the most impacted repository at hand (mozilla-try), the slowdown seems mostly mixed in the overall noise `hg push` but seems to be in the hundred of milliseconds order of magnitude. When using rust, we seems to be a bit faster, probably because we leverage more accelaratd internals. I added a couple of performance related common for further investigation later on.

#require no-windows

  $ . "$TESTDIR/remotefilelog-library.sh"

  $ hg init master
  $ cd master
  $ cat >> .hg/hgrc <<EOF
  > [remotefilelog]
  > server=True
  > EOF
  $ echo x > x
  $ hg commit -qAm x
  $ echo y >> x
  $ hg commit -qAm y
  $ echo z >> x
  $ hg commit -qAm z

  $ cd ..

  $ hgcloneshallow ssh://user@dummy/master shallow -q
  1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over *s (glob)
  $ cd shallow

Unbundling a shallow bundle

  $ hg strip -r 66ee28d0328c
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  saved backup bundle to $TESTTMP/shallow/.hg/strip-backup/66ee28d0328c-3d7aafd1-backup.hg (glob)
  2 files fetched over 2 fetches - (2 misses, 0.00% hit ratio) over *s (glob)
  $ hg unbundle .hg/strip-backup/66ee28d0328c-3d7aafd1-backup.hg
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 1 files
  new changesets 66ee28d0328c:16db62c5946f
  (run 'hg update' to get a working copy)

Unbundling a full bundle

  $ hg -R ../master bundle -r 66ee28d0328c:: --base "66ee28d0328c^" ../fullbundle.hg
  2 changesets found
  $ hg strip -r 66ee28d0328c
  saved backup bundle to $TESTTMP/shallow/.hg/strip-backup/66ee28d0328c-3d7aafd1-backup.hg (glob)
  $ hg unbundle ../fullbundle.hg
  adding changesets
  adding manifests
  adding file changes
  added 2 changesets with 2 changes to 1 files
  new changesets 66ee28d0328c:16db62c5946f (2 drafts)
  (run 'hg update' to get a working copy)

Pulling from a shallow bundle

  $ hg strip -r 66ee28d0328c --config remotefilelog.strip.includefiles=none
  saved backup bundle to $TESTTMP/shallow/.hg/strip-backup/66ee28d0328c-3d7aafd1-backup.hg (glob)
  $ hg pull -r 66ee28d0328c .hg/strip-backup/66ee28d0328c-3d7aafd1-backup.hg
  pulling from .hg/strip-backup/66ee28d0328c-3d7aafd1-backup.hg
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 0 changes to 0 files
  new changesets 66ee28d0328c (1 drafts)
  (run 'hg update' to get a working copy)

Pulling from a full bundle, also testing that strip produces a full bundle by
default.

  $ hg strip -r 66ee28d0328c
  saved backup bundle to $TESTTMP/shallow/.hg/strip-backup/66ee28d0328c-b6ee89e7-backup.hg (glob)
  $ hg pull -r 66ee28d0328c .hg/strip-backup/66ee28d0328c-b6ee89e7-backup.hg
  pulling from .hg/strip-backup/66ee28d0328c-b6ee89e7-backup.hg
  searching for changes
  abort: cannot pull from full bundles
  (use `hg unbundle` instead)
  [255]
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