Mercurial > hg
view tests/test-convert-bzr-directories.t @ 28240:1ac8ce137377
changegroup: fix treemanifests on merges
The current code for generating treemanifest revisions takes the list
of files in the changeset and finds the directories from them. This
does not work for merges, since a merge may pick file A from one side
and file B from another and neither of them would appear in the
changeset's "files" list, but the manifest would still change.
Fix this by instead walking the root manifest log for all needed
revisions, storing all needed file and subdirectory revisions, then
recursively visiting the subdirectories. This also turns out to be
faster: cloning a version of hg core converted to treemanifests went
from ~28s to ~19s (timing somewhat unfair: before this patch, timed
until crash; after this patch, timed until manifests complete).
The new algorithm is used only on treemanifest repos. Although it
works equally well on flat manifests, we leave the iteration over
files in the changeset for flat manifests for now.
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Fri, 12 Feb 2016 23:09:09 -0800 |
parents | 89872688893f |
children | 815e9ca1078c |
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#require bzr $ . "$TESTDIR/bzr-definitions" empty directory $ mkdir test-empty $ cd test-empty $ bzr init -q source $ cd source $ echo content > a $ bzr add -q a $ bzr commit -q -m 'Initial add' $ mkdir empty $ bzr add -q empty $ bzr commit -q -m 'Empty directory added' $ echo content > empty/something $ bzr add -q empty/something $ bzr commit -q -m 'Added file into directory' $ cd .. $ hg convert source source-hg initializing destination source-hg repository scanning source... sorting... converting... 2 Initial add 1 Empty directory added 0 Added file into directory $ manifest source-hg 1 % manifest of 1 644 a $ manifest source-hg tip % manifest of tip 644 a 644 empty/something $ cd .. directory renames $ mkdir test-dir-rename $ cd test-dir-rename $ bzr init -q source $ cd source $ mkdir tpyo $ echo content > tpyo/something $ bzr add -q tpyo $ bzr commit -q -m 'Added directory' $ bzr mv tpyo typo tpyo => typo $ bzr commit -q -m 'Oops, typo' $ cd .. $ hg convert source source-hg initializing destination source-hg repository scanning source... sorting... converting... 1 Added directory 0 Oops, typo $ manifest source-hg 0 % manifest of 0 644 tpyo/something $ manifest source-hg tip % manifest of tip 644 typo/something $ cd .. nested directory renames $ mkdir test-nested-dir-rename $ cd test-nested-dir-rename $ bzr init -q source $ cd source $ mkdir -p firstlevel/secondlevel/thirdlevel $ echo content > firstlevel/secondlevel/file $ echo this_needs_to_be_there_too > firstlevel/secondlevel/thirdlevel/stuff $ bzr add -q firstlevel $ bzr commit -q -m 'Added nested directories' $ bzr mv firstlevel/secondlevel secondlevel firstlevel/secondlevel => secondlevel $ bzr commit -q -m 'Moved secondlevel one level up' $ cd .. $ hg convert source source-hg initializing destination source-hg repository scanning source... sorting... converting... 1 Added nested directories 0 Moved secondlevel one level up $ manifest source-hg tip % manifest of tip 644 secondlevel/file 644 secondlevel/thirdlevel/stuff $ cd .. directory remove $ mkdir test-dir-remove $ cd test-dir-remove $ bzr init -q source $ cd source $ mkdir src $ echo content > src/sourcecode $ bzr add -q src $ bzr commit -q -m 'Added directory' $ bzr rm -q src $ bzr commit -q -m 'Removed directory' $ cd .. $ hg convert source source-hg initializing destination source-hg repository scanning source... sorting... converting... 1 Added directory 0 Removed directory $ manifest source-hg 0 % manifest of 0 644 src/sourcecode $ manifest source-hg tip % manifest of tip $ cd .. directory replace $ mkdir test-dir-replace $ cd test-dir-replace $ bzr init -q source $ cd source $ mkdir first second $ echo content > first/file $ echo morecontent > first/dummy $ echo othercontent > second/something $ bzr add -q first second $ bzr commit -q -m 'Initial layout' $ bzr mv first/file second/file first/file => second/file $ bzr mv first third first => third $ bzr commit -q -m 'Some conflicting moves' $ cd .. $ hg convert source source-hg initializing destination source-hg repository scanning source... sorting... converting... 1 Initial layout 0 Some conflicting moves $ manifest source-hg tip % manifest of tip 644 second/file 644 second/something 644 third/dummy $ cd .. divergent nested renames (issue3089) $ mkdir test-divergent-renames $ cd test-divergent-renames $ bzr init -q source $ cd source $ mkdir -p a/c $ echo a > a/fa $ echo c > a/c/fc $ bzr add -q a $ bzr commit -q -m 'Initial layout' $ bzr mv a b a => b $ mkdir a $ bzr add a add(ed|ing) a (re) $ bzr mv b/c a/c b/c => a/c $ bzr status added: a/ renamed: a/? => b/? (re) a/c/? => a/c/? (re) $ bzr commit -q -m 'Divergent renames' $ cd .. $ hg convert source source-hg initializing destination source-hg repository scanning source... sorting... converting... 1 Initial layout 0 Divergent renames $ hg -R source-hg st -C --change 1 A b/fa a/fa R a/fa $ hg -R source-hg manifest -r 1 a/c/fc b/fa $ cd ..