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-rwxr-xr-xcontrib/git-svn/git-svn.perl108
1 files changed, 88 insertions, 20 deletions
diff --git a/contrib/git-svn/git-svn.perl b/contrib/git-svn/git-svn.perl
index de13a96b8a..b3e0684c44 100755
--- a/contrib/git-svn/git-svn.perl
+++ b/contrib/git-svn/git-svn.perl
@@ -8,7 +8,7 @@ use vars qw/ $AUTHOR $VERSION
$GIT_SVN_INDEX $GIT_SVN
$GIT_DIR $REV_DIR/;
$AUTHOR = 'Eric Wong <normalperson@yhbt.net>';
-$VERSION = '1.0.0';
+$VERSION = '1.1.0-pre';
use Cwd qw/abs_path/;
$GIT_DIR = abs_path($ENV{GIT_DIR} || '.git');
@@ -39,6 +39,10 @@ my $_svn_co_url_revs;
my %fc_opts = ( 'no-ignore-externals' => \$_no_ignore_ext,
'branch|b=s' => \@_branch_from,
'authors-file|A=s' => \$_authors );
+
+# yes, 'native' sets "\n". Patches to fix this for non-*nix systems welcome:
+my %EOL = ( CR => "\015", LF => "\012", CRLF => "\015\012", native => "\012" );
+
my %cmd = (
fetch => [ \&fetch, "Download new revisions from SVN",
{ 'revision|r=s' => \$_revision, %fc_opts } ],
@@ -207,7 +211,7 @@ sub rebuild {
push @svn_up, '--ignore-externals' unless $_no_ignore_ext;
sys(@svn_up,"-r$newest_rev");
$ENV{GIT_INDEX_FILE} = $GIT_SVN_INDEX;
- git_addremove();
+ index_changes();
exec('git-write-tree');
}
waitpid $pid, 0;
@@ -249,7 +253,7 @@ sub fetch {
chdir $SVN_WC or croak $!;
read_uuid();
$last_commit = git_commit($base, @parents);
- assert_svn_wc_clean($base->{revision}, $last_commit);
+ assert_tree($last_commit);
} else {
chdir $SVN_WC or croak $!;
read_uuid();
@@ -259,16 +263,20 @@ sub fetch {
push @svn_up, '--ignore-externals' unless $_no_ignore_ext;
my $last = $base;
while (my $log_msg = next_log_entry($svn_log)) {
- assert_svn_wc_clean($last->{revision}, $last_commit);
+ assert_tree($last_commit);
if ($last->{revision} >= $log_msg->{revision}) {
croak "Out of order: last >= current: ",
"$last->{revision} >= $log_msg->{revision}\n";
}
+ # Revert is needed for cases like:
+ # https://svn.musicpd.org/Jamming/trunk (r166:167), but
+ # I can't seem to reproduce something like that on a test...
+ sys(qw/svn revert -R ./);
+ assert_svn_wc_clean($last->{revision});
sys(@svn_up,"-r$log_msg->{revision}");
$last_commit = git_commit($log_msg, $last_commit, @parents);
$last = $log_msg;
}
- assert_svn_wc_clean($last->{revision}, $last_commit);
unless (-e "$GIT_DIR/refs/heads/master") {
sys(qw(git-update-ref refs/heads/master),$last_commit);
}
@@ -314,7 +322,6 @@ sub commit {
$svn_current_rev = svn_commit_tree($svn_current_rev, $c);
}
print "Done committing ",scalar @revs," revisions to SVN\n";
-
}
sub show_ignore {
@@ -367,13 +374,11 @@ sub setup_git_svn {
}
sub assert_svn_wc_clean {
- my ($svn_rev, $treeish) = @_;
+ my ($svn_rev) = @_;
croak "$svn_rev is not an integer!\n" unless ($svn_rev =~ /^\d+$/);
- croak "$treeish is not a sha1!\n" unless ($treeish =~ /^$sha1$/o);
my $lcr = svn_info('.')->{'Last Changed Rev'};
if ($svn_rev != $lcr) {
print STDERR "Checking for copy-tree ... ";
- # use
my @diff = grep(/^Index: /,(safe_qx(qw(svn diff),
"-r$lcr:$svn_rev")));
if (@diff) {
@@ -389,7 +394,6 @@ sub assert_svn_wc_clean {
print STDERR $_ foreach @status;
croak;
}
- assert_tree($treeish);
}
sub assert_tree {
@@ -416,7 +420,7 @@ sub assert_tree {
unlink $tmpindex or croak $!;
}
$ENV{GIT_INDEX_FILE} = $tmpindex;
- git_addremove();
+ index_changes(1);
chomp(my $tree = `git-write-tree`);
if ($old_index) {
$ENV{GIT_INDEX_FILE} = $old_index;
@@ -426,6 +430,7 @@ sub assert_tree {
if ($tree ne $expected) {
croak "Tree mismatch, Got: $tree, Expected: $expected\n";
}
+ unlink $tmpindex;
}
sub parse_diff_tree {
@@ -562,7 +567,8 @@ sub precommit_check {
sub svn_checkout_tree {
my ($svn_rev, $treeish) = @_;
my $from = file_to_s("$REV_DIR/$svn_rev");
- assert_svn_wc_clean($svn_rev,$from);
+ assert_svn_wc_clean($svn_rev);
+ assert_tree($from);
print "diff-tree $from $treeish\n";
my $pid = open my $diff_fh, '-|';
defined $pid or croak $!;
@@ -852,13 +858,75 @@ sub svn_info {
sub sys { system(@_) == 0 or croak $? }
-sub git_addremove {
- system( "git-diff-files --name-only -z ".
- " | git-update-index --remove -z --stdin && ".
- "git-ls-files -z --others ".
- "'--exclude-from=$GIT_DIR/$GIT_SVN/info/exclude'".
- " | git-update-index --add -z --stdin"
- ) == 0 or croak $?
+sub eol_cp {
+ my ($from, $to) = @_;
+ my $es = safe_qx(qw/svn propget svn:eol-style/, $to);
+ open my $rfd, '<', $from or croak $!;
+ binmode $rfd or croak $!;
+ open my $wfd, '>', $to or croak $!;
+ binmode $wfd or croak $!;
+
+ my $eol = $EOL{$es} or undef;
+ if ($eol) {
+ print "$eol: $from => $to\n";
+ }
+ my $buf;
+ while (1) {
+ my ($r, $w, $t);
+ defined($r = sysread($rfd, $buf, 4096)) or croak $!;
+ return unless $r;
+ $buf =~ s/(?:\015|\012|\015\012)/$eol/gs if $eol;
+ for ($w = 0; $w < $r; $w += $t) {
+ $t = syswrite($wfd, $buf, $r - $w, $w) or croak $!;
+ }
+ }
+}
+
+sub do_update_index {
+ my ($z_cmd, $cmd, $no_text_base) = @_;
+
+ my $z = open my $p, '-|';
+ defined $z or croak $!;
+ unless ($z) { exec @$z_cmd or croak $! }
+
+ my $pid = open my $ui, '|-';
+ defined $pid or croak $!;
+ unless ($pid) {
+ exec('git-update-index',"--$cmd",'-z','--stdin') or croak $!;
+ }
+ local $/ = "\0";
+ while (my $x = <$p>) {
+ chomp $x;
+ if (!$no_text_base && lstat $x && ! -l _ &&
+ safe_qx(qw/svn propget svn:keywords/,$x)) {
+ my $mode = -x _ ? 0755 : 0644;
+ my ($v,$d,$f) = File::Spec->splitpath($x);
+ my $tb = File::Spec->catfile($d, '.svn', 'tmp',
+ 'text-base',"$f.svn-base");
+ $tb =~ s#^/##;
+ unless (-f $tb) {
+ $tb = File::Spec->catfile($d, '.svn',
+ 'text-base',"$f.svn-base");
+ $tb =~ s#^/##;
+ }
+ unlink $x or croak $!;
+ eol_cp($tb, $x);
+ chmod(($mode &~ umask), $x) or croak $!;
+ }
+ print $ui $x,"\0";
+ }
+ close $ui or croak $!;
+}
+
+sub index_changes {
+ my $no_text_base = shift;
+ do_update_index([qw/git-diff-files --name-only -z/],
+ 'remove',
+ $no_text_base);
+ do_update_index([qw/git-ls-files -z --others/,
+ "--exclude-from=$GIT_DIR/$GIT_SVN/info/exclude"],
+ 'add',
+ $no_text_base);
}
sub s_to_file {
@@ -936,7 +1004,7 @@ sub git_commit {
defined $pid or croak $!;
if ($pid == 0) {
$ENV{GIT_INDEX_FILE} = $GIT_SVN_INDEX;
- git_addremove();
+ index_changes();
chomp(my $tree = `git-write-tree`);
croak if $?;
if (exists $tree_map{$tree}) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-30 21:24:38 +0000