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view tests/test-convert-svn-startrev.t @ 31209:dd2364f5180a
localrepo: handle rename with hardlinks properly
In "aftertrans", we rename "journal.*" to "undo.*". We expect "journal.*"
files to disappear after renaming.
However, if "journal.foo" and "undo.foo" refer to a same file (hardlink),
rename may be a no-op, leaving both files on disk, according to Linux
manpage [1]:
If oldpath and newpath are existing hard links referring to the same
file, then rename() does nothing, and returns a suc‐ cess status.
The POSIX specification [2] is not very clear about what to do.
To be safe, remove "undo.*" before the rename so "journal.*" cannot be left
on disk.
[1]: http://man7.org/linux/man-pages/man2/rename.2.html
[2]: http://pubs.opengroup.org/onlinepubs/9699919799/
author | Jun Wu <quark@fb.com> |
---|---|
date | Thu, 02 Mar 2017 21:49:30 -0800 |
parents | 7a9cbb315d84 |
children |
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#require svn svn-bindings $ cat >> $HGRCPATH <<EOF > [extensions] > convert = > EOF $ convert() > { > startrev=$1 > repopath=A-r$startrev-hg > hg convert --config convert.svn.startrev=$startrev \ > --config convert.svn.trunk=branches/branch1 \ > --config convert.svn.branches=" " \ > --config convert.svn.tags= \ > --datesort svn-repo $repopath > hg -R $repopath log -G \ > --template '{rev} {desc|firstline} files: {files}\n' > echo > } $ svnadmin create svn-repo $ svnadmin load -q svn-repo < "$TESTDIR/svn/startrev.svndump" Convert before branching point $ convert 3 initializing destination A-r3-hg repository scanning source... sorting... converting... 3 removeb 2 changeaa 1 branch, changeaaa 0 addc,changeaaaa o 3 addc,changeaaaa files: a c | o 2 branch, changeaaa files: a | o 1 changeaa files: a | o 0 removeb files: a Convert before branching point $ convert 4 initializing destination A-r4-hg repository scanning source... sorting... converting... 2 changeaa 1 branch, changeaaa 0 addc,changeaaaa o 2 addc,changeaaaa files: a c | o 1 branch, changeaaa files: a | o 0 changeaa files: a Convert at branching point $ convert 5 initializing destination A-r5-hg repository scanning source... sorting... converting... 1 branch, changeaaa 0 addc,changeaaaa o 1 addc,changeaaaa files: a c | o 0 branch, changeaaa files: a Convert last revision only $ convert 6 initializing destination A-r6-hg repository scanning source... sorting... converting... 0 addc,changeaaaa o 0 addc,changeaaaa files: a c