view tests/test-convert-svn-tags.t @ 51505:c9ceb4f60256 stable 6.7

phases: avoid N² behavior in `advanceboundary`

We allowed duplicated entries in the deque, which each entry could potentially
insert all its ancestors. So advancing boundary for the full repository would
mean each revision would walk all its ancestors, resulting in O(N²) iteration.
For repository of any decent size, N² is quickly insane.

We introduce a simple set to avoid this and get back to reasonable performance.

#require svn svn-bindings

  $ cat >> $HGRCPATH <<EOF
  > [extensions]
  > convert =
  > EOF

  $ svnadmin create svn-repo
  $ svnadmin load -q svn-repo < "$TESTDIR/svn/tags.svndump"

Convert
  $ hg convert --datesort svn-repo A-hg
  initializing destination A-hg repository
  scanning source...
  sorting...
  converting...
  5 init projA
  4 adda
  3 changea
  2 changea2
  1 changea3
  0 changea
  updating tags

  $ cd A-hg
  $ hg log -G --template '{rev} {desc|firstline} tags: {tags}\n'
  o  6 update tags tags: tip
  |
  o  5 changea tags: trunk.goodtag
  |
  o  4 changea3 tags:
  |
  o  3 changea2 tags: trunk.v1
  |
  o  2 changea tags:
  |
  o  1 adda tags:
  |
  o  0 init projA tags:
  

  $ hg tags -q
  tip
  trunk.goodtag
  trunk.v1

  $ cd ..

Convert without tags

  $ hg convert --datesort --config convert.svn.tags= svn-repo A-notags-hg
  initializing destination A-notags-hg repository
  scanning source...
  sorting...
  converting...
  5 init projA
  4 adda
  3 changea
  2 changea2
  1 changea3
  0 changea

  $ hg -R A-notags-hg tags -q
  tip