Mercurial > hg
view tests/test-convert-svn-sink.t @ 18986:2f7186400a07
ancestor: a new algorithm that is faster for nodes near tip
Instead of walking all the way to the root of the DAG, we generate
a set of candidate GCA revs, then figure out which ones will win
the race to the root (usually without needing to traverse all the
way to the root).
In the common case of nodes that are close to each other in both
revision number and topology, this is usually a big win: it makes
"hg --time debugancestors" up to 9 times faster than the more general
ancestor function when measured on heads of the linux-2.6 hg repo.
Victory is not assured, however. The older function can still win
by a large margin if one node is much closer to the root than the
other, or by a much smaller amount if one is an ancestor of the
other.
For now, we've also got a small paranoid harness function that calls
both ancestor functions on every input and ensures that they give
equivalent answers.
Even without the checker function, the old ancestor function needs
to stay alive for the time being, as its generality is used by
context.filectx.merge.
author | Bryan O'Sullivan <bryano@fb.com> |
---|---|
date | Tue, 16 Apr 2013 10:08:18 -0700 |
parents | 2da47de36b6f |
children | aa9385f983fa |
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$ "$TESTDIR/hghave" svn13 || exit 80 $ svnupanddisplay() > { > ( > cd $1; > svn up -q; > svn st -v | sed 's/ */ /g' | sort > limit='' > if [ $2 -gt 0 ]; then > limit="--limit=$2" > fi > svn log --xml -v $limit | python "$TESTDIR/svnxml.py" > ) > } $ cat >> $HGRCPATH <<EOF > [extensions] > convert = > graphlog = > EOF $ hg init a Add $ echo a > a/a $ mkdir -p a/d1/d2 $ echo b > a/d1/d2/b $ hg --cwd a ci -d '0 0' -A -m 'add a file' adding a adding d1/d2/b Modify $ "$TESTDIR/svn-safe-append.py" a a/a $ hg --cwd a ci -d '1 0' -m 'modify a file' $ hg --cwd a tip -q 1:e0e2b8a9156b $ hg convert -d svn a assuming destination a-hg initializing svn repository 'a-hg' initializing svn working copy 'a-hg-wc' scanning source... sorting... converting... 1 add a file 0 modify a file $ svnupanddisplay a-hg-wc 2 2 1 test d1 2 1 test d1/d2 (glob) 2 1 test d1/d2/b (glob) 2 2 test . 2 2 test a revision: 2 author: test msg: modify a file M /a revision: 1 author: test msg: add a file A /a A /d1 A /d1/d2 A /d1/d2/b $ ls a a-hg-wc a: a d1 a-hg-wc: a d1 $ cmp a/a a-hg-wc/a Rename $ hg --cwd a mv a b $ hg --cwd a ci -d '2 0' -m 'rename a file' $ hg --cwd a tip -q 2:eb5169441d43 $ hg convert -d svn a assuming destination a-hg initializing svn working copy 'a-hg-wc' scanning source... sorting... converting... 0 rename a file $ svnupanddisplay a-hg-wc 1 3 1 test d1 3 1 test d1/d2 (glob) 3 1 test d1/d2/b (glob) 3 3 test . 3 3 test b revision: 3 author: test msg: rename a file D /a A /b (from /a@2) $ ls a a-hg-wc a: b d1 a-hg-wc: b d1 Copy $ hg --cwd a cp b c $ hg --cwd a ci -d '3 0' -m 'copy a file' $ hg --cwd a tip -q 3:60effef6ab48 $ hg convert -d svn a assuming destination a-hg initializing svn working copy 'a-hg-wc' scanning source... sorting... converting... 0 copy a file $ svnupanddisplay a-hg-wc 1 4 1 test d1 4 1 test d1/d2 (glob) 4 1 test d1/d2/b (glob) 4 3 test b 4 4 test . 4 4 test c revision: 4 author: test msg: copy a file A /c (from /b@3) $ ls a a-hg-wc a: b c d1 a-hg-wc: b c d1 $ hg --cwd a rm b Remove $ hg --cwd a ci -d '4 0' -m 'remove a file' $ hg --cwd a tip -q 4:87bbe3013fb6 $ hg convert -d svn a assuming destination a-hg initializing svn working copy 'a-hg-wc' scanning source... sorting... converting... 0 remove a file $ svnupanddisplay a-hg-wc 1 5 1 test d1 5 1 test d1/d2 (glob) 5 1 test d1/d2/b (glob) 5 4 test c 5 5 test . revision: 5 author: test msg: remove a file D /b $ ls a a-hg-wc a: c d1 a-hg-wc: c d1 Executable #if execbit $ chmod +x a/c #else $ echo fake >> a/c #endif $ hg --cwd a ci -d '5 0' -m 'make a file executable' #if execbit $ hg --cwd a tip -q 5:ff42e473c340 #else $ hg --cwd a tip -q 5:817a700c8cf1 #endif $ hg convert -d svn a assuming destination a-hg initializing svn working copy 'a-hg-wc' scanning source... sorting... converting... 0 make a file executable $ svnupanddisplay a-hg-wc 1 6 1 test d1 6 1 test d1/d2 (glob) 6 1 test d1/d2/b (glob) 6 6 test . 6 6 test c revision: 6 author: test msg: make a file executable M /c #if execbit $ test -x a-hg-wc/c #endif #if symlink Symlinks $ ln -s a/missing a/link $ hg --cwd a commit -Am 'add symlink' adding link $ hg --cwd a mv link newlink $ hg --cwd a commit -m 'move symlink' $ hg convert -d svn a assuming destination a-hg initializing svn working copy 'a-hg-wc' scanning source... sorting... converting... 1 add symlink 0 move symlink $ svnupanddisplay a-hg-wc 1 8 1 test d1 8 1 test d1/d2 8 1 test d1/d2/b 8 6 test c 8 8 test . 8 8 test newlink revision: 8 author: test msg: move symlink D /link A /newlink (from /link@7) #endif $ rm -rf a a-hg a-hg-wc Executable in new directory $ hg init a $ mkdir a/d1 $ echo a > a/d1/a #if execbit $ chmod +x a/d1/a #else $ echo fake >> a/d1/a #endif $ hg --cwd a ci -d '0 0' -A -m 'add executable file in new directory' adding d1/a $ hg convert -d svn a assuming destination a-hg initializing svn repository 'a-hg' initializing svn working copy 'a-hg-wc' scanning source... sorting... converting... 0 add executable file in new directory $ svnupanddisplay a-hg-wc 1 1 1 test . 1 1 test d1 1 1 test d1/a (glob) revision: 1 author: test msg: add executable file in new directory A /d1 A /d1/a #if execbit $ test -x a-hg-wc/d1/a #endif Copy to new directory $ mkdir a/d2 $ hg --cwd a cp d1/a d2/a $ hg --cwd a ci -d '1 0' -A -m 'copy file to new directory' $ hg convert -d svn a assuming destination a-hg initializing svn working copy 'a-hg-wc' scanning source... sorting... converting... 0 copy file to new directory $ svnupanddisplay a-hg-wc 1 2 1 test d1 2 1 test d1/a (glob) 2 2 test . 2 2 test d2 2 2 test d2/a (glob) revision: 2 author: test msg: copy file to new directory A /d2 A /d2/a (from /d1/a@1) Branchy history $ hg init b $ echo base > b/b $ hg --cwd b ci -d '0 0' -Ambase adding b $ "$TESTDIR/svn-safe-append.py" left-1 b/b $ echo left-1 > b/left-1 $ hg --cwd b ci -d '1 0' -Amleft-1 adding left-1 $ "$TESTDIR/svn-safe-append.py" left-2 b/b $ echo left-2 > b/left-2 $ hg --cwd b ci -d '2 0' -Amleft-2 adding left-2 $ hg --cwd b up 0 1 files updated, 0 files merged, 2 files removed, 0 files unresolved $ "$TESTDIR/svn-safe-append.py" right-1 b/b $ echo right-1 > b/right-1 $ hg --cwd b ci -d '3 0' -Amright-1 adding right-1 created new head $ "$TESTDIR/svn-safe-append.py" right-2 b/b $ echo right-2 > b/right-2 $ hg --cwd b ci -d '4 0' -Amright-2 adding right-2 $ hg --cwd b up -C 2 3 files updated, 0 files merged, 2 files removed, 0 files unresolved $ hg --cwd b merge merging b warning: conflicts during merge. merging b incomplete! (edit conflicts, then use 'hg resolve --mark') 2 files updated, 0 files merged, 0 files removed, 1 files unresolved use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon [1] $ hg --cwd b revert -r 2 b $ hg --cwd b resolve -m b $ hg --cwd b ci -d '5 0' -m 'merge' Expect 4 changes $ hg convert -d svn b assuming destination b-hg initializing svn repository 'b-hg' initializing svn working copy 'b-hg-wc' scanning source... sorting... converting... 5 base 4 left-1 3 left-2 2 right-1 1 right-2 0 merge $ svnupanddisplay b-hg-wc 0 4 2 test left-1 4 3 test b 4 3 test left-2 4 4 test . 4 4 test right-1 4 4 test right-2 revision: 4 author: test msg: merge A /right-1 A /right-2 revision: 3 author: test msg: left-2 M /b A /left-2 revision: 2 author: test msg: left-1 M /b A /left-1 revision: 1 author: test msg: base A /b Tags are not supported, but must not break conversion $ rm -rf a a-hg a-hg-wc $ hg init a $ echo a > a/a $ hg --cwd a ci -d '0 0' -A -m 'Add file a' adding a $ hg --cwd a tag -d '1 0' -m 'Tagged as v1.0' v1.0 $ hg convert -d svn a assuming destination a-hg initializing svn repository 'a-hg' initializing svn working copy 'a-hg-wc' scanning source... sorting... converting... 1 Add file a 0 Tagged as v1.0 writing Subversion tags is not yet implemented $ svnupanddisplay a-hg-wc 2 2 1 test a 2 2 test . 2 2 test .hgtags revision: 2 author: test msg: Tagged as v1.0 A /.hgtags revision: 1 author: test msg: Add file a A /a $ rm -rf a a-hg a-hg-wc