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git-svnimport: support for incremental import
This adds ability to do import "in chunks" (default 1000 revisions), after each chunk git repo will be repacked. The option -R is used to change default value of chunk size (or how often repository will repacked). Signed-off-by: Sasha Khapyorsky <sashak@voltaire.com> Signed-off-by: Junio C Hamano <junkio@cox.net>
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@ -15,7 +15,7 @@ SYNOPSIS
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[ -b branch_subdir ] [ -T trunk_subdir ] [ -t tag_subdir ]
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[ -s start_chg ] [ -m ] [ -r ] [ -M regex ]
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[ -I <ignorefile_name> ] [ -A <author_file> ]
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[ -P <path_from_trunk> ]
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[ -R <repack_each_revs>] [ -P <path_from_trunk> ]
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<SVN_repository_URL> [ <path> ]
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@ -108,6 +108,14 @@ repository without -A.
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Formerly, this option controlled how many revisions to pull,
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due to SVN memory leaks. (These have been worked around.)
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-R <repack_each_revs>::
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Specify how often git repository should be repacked.
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+
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The default value is 1000. git-svnimport will do import in chunks of 1000
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revisions, after each chunk git repository will be repacked. To disable
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this behavior specify some big value here which is mote than number of
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revisions to import.
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-P <path_from_trunk>::
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Partial import of the SVN tree.
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+
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@ -31,12 +31,13 @@
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$ENV{'TZ'}="UTC";
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our($opt_h,$opt_o,$opt_v,$opt_u,$opt_C,$opt_i,$opt_m,$opt_M,$opt_t,$opt_T,
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$opt_b,$opt_r,$opt_I,$opt_A,$opt_s,$opt_l,$opt_d,$opt_D,$opt_S,$opt_F,$opt_P);
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$opt_b,$opt_r,$opt_I,$opt_A,$opt_s,$opt_l,$opt_d,$opt_D,$opt_S,$opt_F,
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$opt_P,$opt_R);
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sub usage() {
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print STDERR <<END;
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Usage: ${\basename $0} # fetch/update GIT from SVN
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[-o branch-for-HEAD] [-h] [-v] [-l max_rev]
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[-o branch-for-HEAD] [-h] [-v] [-l max_rev] [-R repack_each_revs]
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[-C GIT_repository] [-t tagname] [-T trunkname] [-b branchname]
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[-d|-D] [-i] [-u] [-r] [-I ignorefilename] [-s start_chg]
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[-m] [-M regex] [-A author_file] [-S] [-F] [-P project_name] [SVN_URL]
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@ -44,7 +45,7 @@ END
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exit(1);
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}
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getopts("A:b:C:dDFhiI:l:mM:o:rs:t:T:SP:uv") or usage();
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getopts("A:b:C:dDFhiI:l:mM:o:rs:t:T:SP:R:uv") or usage();
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usage if $opt_h;
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my $tag_name = $opt_t || "tags";
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@ -52,6 +53,7 @@ END
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my $branch_name = $opt_b || "branches";
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my $project_name = $opt_P || "";
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$project_name = "/" . $project_name if ($project_name);
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my $repack_after = $opt_R || 1000;
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@ARGV == 1 or @ARGV == 2 or usage();
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@ -934,11 +936,27 @@ sub commit_all {
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exit;
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}
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print "Fetching from $current_rev to $opt_l ...\n" if $opt_v;
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print "Processing from $current_rev to $opt_l ...\n" if $opt_v;
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my $pool=SVN::Pool->new;
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$svn->{'svn'}->get_log("/",$current_rev,$opt_l,0,1,1,\&commit_all,$pool);
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$pool->clear;
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my $from_rev;
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my $to_rev = $current_rev;
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while ($to_rev < $opt_l) {
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$from_rev = $to_rev;
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$to_rev = $from_rev + $repack_after;
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$to_rev = $opt_l if $opt_l < $to_rev;
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print "Fetching from $from_rev to $to_rev ...\n" if $opt_v;
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my $pool=SVN::Pool->new;
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$svn->{'svn'}->get_log("/",$from_rev,$to_rev,0,1,1,\&commit_all,$pool);
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$pool->clear;
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my $pid = fork();
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die "Fork: $!\n" unless defined $pid;
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unless($pid) {
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exec("git-repack", "-d")
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or die "Cannot repack: $!\n";
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}
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waitpid($pid, 0);
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}
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unlink($git_index);
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