2 # Copyright (C) 2018-2020 all contributors <meta@public-inbox.org>
3 # License: AGPL-3.0+ <http://www.gnu.org/licenses/agpl-3.0.txt>
6 use Getopt::Long qw(:config gnu_getopt no_ignore_case auto_abbrev);
7 use PublicInbox::InboxWritable;
8 use PublicInbox::Config;
9 use PublicInbox::Admin;
10 use PublicInbox::V2Writable;
12 use PublicInbox::Spawn qw(spawn);
14 use File::Copy 'cp'; # preserves permissions:
15 my $usage = "Usage: public-inbox-convert OLD NEW\n";
19 '--jobs|j=i' => \$jobs,
20 '--index!' => \$index,
22 GetOptions(%opts) or die "bad command-line args\n$usage";
23 my $old_dir = shift(@ARGV) or die $usage;
24 my $new_dir = shift(@ARGV) or die $usage;
25 die "$new_dir exists\n" if -d $new_dir;
26 die "$old_dir not a directory\n" unless -d $old_dir;
27 my $config = eval { PublicInbox::Config->new };
28 $old_dir = abs_path($old_dir);
31 $config->each_inbox(sub {
32 $old = $_[0] if abs_path($_[0]->{inboxdir}) eq $old_dir;
36 warn "W: $old_dir not configured in " .
37 PublicInbox::Config::default_file() . "\n";
41 address => [ 'old@example.com' ],
43 $old = PublicInbox::Inbox->new($old);
45 $old = PublicInbox::InboxWritable->new($old);
46 if ($old->version >= 2) {
47 die "Only conversion from v1 inboxes is supported\n";
50 $old->{indexlevel} //= PublicInbox::Admin::detect_indexlevel($old);
53 PublicInbox::Admin::scan_ibx_modules($mods, $old);
54 PublicInbox::Admin::require_or_die(keys %$mods);
58 $new->{inboxdir} = abs_path($new_dir);
60 $new = PublicInbox::InboxWritable->new($new);
64 sub link_or_copy ($$) {
66 link($src, $dst) and return;
67 $!{EXDEV} or warn "link $src, $dst failed: $!, trying cp\n";
68 cp($src, $dst) or die "cp $src, $dst failed: $!\n";
71 $old->with_umask(sub {
72 my $old_cfg = "$old->{inboxdir}/config";
73 local $ENV{GIT_CONFIG} = $old_cfg;
74 my $new_cfg = "$new->{inboxdir}/all.git/config";
75 $v2w = PublicInbox::V2Writable->new($new, 1);
76 $v2w->init_inbox($jobs);
78 link_or_copy($old_cfg, $new_cfg);
79 if (my $alt = $new->{altid}) {
80 require PublicInbox::AltId;
81 foreach my $i (0..$#$alt) {
82 my $src = PublicInbox::AltId->new($old, $alt->[$i], 0);
84 my $dst = PublicInbox::AltId->new($new, $alt->[$i], 1);
85 $dst = $dst->{filename};
86 $src->mm_alt->{dbh}->sqlite_backup_to_file($dst);
89 my $desc = "$old->{inboxdir}/description";
90 link_or_copy($desc, "$new->{inboxdir}/description") if -e $desc;
91 my $clone = "$old->{inboxdir}/cloneurl";
94 $clone may not be valid after migrating to v2, not copying
99 my $head = $old->{ref_head} || 'HEAD';
100 my ($rd, $pid) = $old->git->popen(qw(fast-export --use-done-feature), $head);
102 my $im = $v2w->importer;
103 my ($r, $w) = $im->gfi_start;
108 if ($_ eq "blob\n") {
110 } elsif (/^commit /) {
112 } elsif (/^data ([0-9]+)/) {
114 $w->print($_) or $im->wfail;
116 my $n = read($rd, my $tmp, $len) or die "read: $!";
117 warn "$n != $len\n" if $n != $len;
119 $w->print($tmp) or $im->wfail;
122 } elsif ($state eq 'commit') {
123 if (m{^M 100644 :([0-9]+) (${h}{2}/${h}{38})}o) {
124 my ($mark, $path) = ($1, $2);
126 if ($last && $last ne 'm') {
127 $w->print("D $last\n") or $im->wfail;
129 $w->print("M 100644 :$mark m\n") or $im->wfail;
133 if (m{^D (${h}{2}/${h}{38})}o) {
134 my $mark = delete $D{$1};
135 defined $mark or die "undeleted path: $1\n";
136 if ($last && $last ne 'd') {
137 $w->print("D $last\n") or $im->wfail;
139 $w->print("M 100644 :$mark d\n") or $im->wfail;
144 last if $_ eq "done\n";
145 $w->print($_) or $im->wfail;
148 close $rd or die "close fast-export: $!\n";
149 waitpid($pid, 0) or die "waitpid failed: $!\n";
150 $? == 0 or die "fast-export failed: $?\n";
152 if (my $mm = $old->mm) {
154 $mm->{dbh}->sqlite_backup_to_file("$new_dir/msgmap.sqlite3");
156 # we want to trigger a reindex, not a from scratch index if
157 # we're reusing the msgmap from an existing v1 installation.
159 my $epoch0 = PublicInbox::Git->new($v2w->git_init(0));
160 chop(my $cmt = $epoch0->qx(qw(rev-parse --verify), $head));
161 $v2w->last_epoch_commit(0, $cmt);
163 $v2w->index_sync({reindex => 1}) if $index;