mirror of
https://github.com/git/git
synced 2024-11-05 18:59:29 +00:00
060610c572
Migrations are done automatically on an as-needed basis when new
revisions are to be fetched. Stale remote branches do not get
migrated, yet.
However, unless you set noMetadata or useSvkProps it's safe to
just do:
find $GIT_DIR/svn -name '.rev_db*' -print0 | xargs rm -f
to purge all the old .rev_db files.
The new format is a one-way migration and is NOT compatible with
old versions of git-svn.
This is the replacement for the rev_db format, which was too big
and inefficient for large repositories with a lot of sparse history
(mainly tags).
The format is this:
- 24 bytes for every record,
* 4 bytes for the integer representing an SVN revision number
* 20 bytes representing the sha1 of a git commit
- No empty padding records like the old format
- new records are written append-only since SVN revision numbers
increase monotonically
- lookups on SVN revision number are done via a binary search
- Piping the file to xxd(1) -c24 is a good way of dumping it for
viewing or editing, should the need ever arise.
As with .rev_db, these files are disposable unless noMetadata or
useSvmProps is set.
Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
110 lines
2.4 KiB
Bash
110 lines
2.4 KiB
Bash
. ./test-lib.sh
|
|
|
|
if test -n "$NO_SVN_TESTS"
|
|
then
|
|
test_expect_success 'skipping git-svn tests, NO_SVN_TESTS defined' :
|
|
test_done
|
|
exit
|
|
fi
|
|
|
|
GIT_DIR=$PWD/.git
|
|
GIT_SVN_DIR=$GIT_DIR/svn/git-svn
|
|
SVN_TREE=$GIT_SVN_DIR/svn-tree
|
|
|
|
svn >/dev/null 2>&1
|
|
if test $? -ne 1
|
|
then
|
|
test_expect_success 'skipping git-svn tests, svn not found' :
|
|
test_done
|
|
exit
|
|
fi
|
|
|
|
svnrepo=$PWD/svnrepo
|
|
|
|
perl -w -e "
|
|
use SVN::Core;
|
|
use SVN::Repos;
|
|
\$SVN::Core::VERSION gt '1.1.0' or exit(42);
|
|
system(qw/svnadmin create --fs-type fsfs/, '$svnrepo') == 0 or exit(41);
|
|
" >&3 2>&4
|
|
x=$?
|
|
if test $x -ne 0
|
|
then
|
|
if test $x -eq 42; then
|
|
err='Perl SVN libraries must be >= 1.1.0'
|
|
elif test $x -eq 41; then
|
|
err='svnadmin failed to create fsfs repository'
|
|
else
|
|
err='Perl SVN libraries not found or unusable, skipping test'
|
|
fi
|
|
test_expect_success "$err" :
|
|
test_done
|
|
exit
|
|
fi
|
|
|
|
rawsvnrepo="$svnrepo"
|
|
svnrepo="file://$svnrepo"
|
|
|
|
poke() {
|
|
test-chmtime +1 "$1"
|
|
}
|
|
|
|
SVN_HTTPD_MODULE_PATH=${SVN_HTTPD_MODULE_PATH-'/usr/lib/apache2/modules'}
|
|
SVN_HTTPD_PATH=${SVN_HTTPD_PATH-'/usr/sbin/apache2'}
|
|
|
|
start_httpd () {
|
|
if test -z "$SVN_HTTPD_PORT"
|
|
then
|
|
echo >&2 'SVN_HTTPD_PORT is not defined!'
|
|
return
|
|
fi
|
|
|
|
mkdir "$GIT_DIR"/logs
|
|
|
|
cat > "$GIT_DIR/httpd.conf" <<EOF
|
|
ServerName "git-svn test"
|
|
ServerRoot "$GIT_DIR"
|
|
DocumentRoot "$GIT_DIR"
|
|
PidFile "$GIT_DIR/httpd.pid"
|
|
Listen 127.0.0.1:$SVN_HTTPD_PORT
|
|
LoadModule dav_module $SVN_HTTPD_MODULE_PATH/mod_dav.so
|
|
LoadModule dav_svn_module $SVN_HTTPD_MODULE_PATH/mod_dav_svn.so
|
|
<Location /svn>
|
|
DAV svn
|
|
SVNPath $rawsvnrepo
|
|
</Location>
|
|
EOF
|
|
"$SVN_HTTPD_PATH" -f "$GIT_DIR"/httpd.conf -k start
|
|
svnrepo=http://127.0.0.1:$SVN_HTTPD_PORT/svn
|
|
}
|
|
|
|
stop_httpd () {
|
|
test -z "$SVN_HTTPD_PORT" && return
|
|
"$SVN_HTTPD_PATH" -f "$GIT_DIR"/httpd.conf -k stop
|
|
}
|
|
|
|
convert_to_rev_db () {
|
|
perl -w -- - "$@" <<\EOF
|
|
use strict;
|
|
@ARGV == 2 or die "Usage: convert_to_rev_db <input> <output>";
|
|
open my $wr, '+>', $ARGV[1] or die "$!: couldn't open: $ARGV[1]";
|
|
open my $rd, '<', $ARGV[0] or die "$!: couldn't open: $ARGV[0]";
|
|
my $size = (stat($rd))[7];
|
|
($size % 24) == 0 or die "Inconsistent size: $size";
|
|
while (sysread($rd, my $buf, 24) == 24) {
|
|
my ($r, $c) = unpack('NH40', $buf);
|
|
my $offset = $r * 41;
|
|
seek $wr, 0, 2 or die $!;
|
|
my $pos = tell $wr;
|
|
if ($pos < $offset) {
|
|
for (1 .. (($offset - $pos) / 41)) {
|
|
print $wr (('0' x 40),"\n") or die $!;
|
|
}
|
|
}
|
|
seek $wr, $offset, 0 or die $!;
|
|
print $wr $c,"\n" or die $!;
|
|
}
|
|
close $wr or die $!;
|
|
close $rd or die $!;
|
|
EOF
|
|
}
|