2 # Copyright (C) 2014-2019 all contributors <meta@public-inbox.org>
3 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
5 # Initializes a public-inbox, basically a wrapper for git-init(1)
8 my $usage = "public-inbox-init NAME INBOX_DIR HTTP_URL ADDRESS [ADDRESS..]";
9 use Getopt::Long qw/:config gnu_getopt no_ignore_case auto_abbrev/;
10 use PublicInbox::Admin;
11 PublicInbox::Admin::require_or_die('-base');
12 require PublicInbox::Config;
13 require PublicInbox::InboxWritable;
14 use File::Temp qw/tempfile/;
15 use PublicInbox::Lock;
16 use File::Basename qw/dirname/;
17 use File::Path qw/mkpath/;
18 use Fcntl qw(:DEFAULT);
21 sub x { system(@_) and die join(' ', @_). " failed: $?\n" }
22 sub usage { print STDERR "Usage: $usage\n"; exit 1 }
24 my $indexlevel = undef;
27 'V|version=i' => \$version,
28 'L|indexlevel=s' => \$indexlevel,
29 'S|skip|skip-epoch=i' => \$skip_epoch,
31 GetOptions(%opts) or usage();
32 PublicInbox::Admin::indexlevel_ok_or_die($indexlevel) if defined $indexlevel;
33 my $name = shift @ARGV or usage();
34 my $mainrepo = shift @ARGV or usage();
35 my $http_url = shift @ARGV or usage();
36 my (@address) = @ARGV;
40 my $pi_config = PublicInbox::Config->default_file;
41 my $dir = dirname($pi_config);
42 mkpath($dir); # will croak on fatal errors
44 # first, we grab a flock to prevent simultaneous public-inbox-init
45 # processes from trampling over each other, or exiting with 255 on
46 # O_EXCL failure below. This gets unlocked automatically on exit:
47 my $lock_obj = { lock_path => "$pi_config.flock" };
48 PublicInbox::Lock::lock_acquire($lock_obj);
50 # git-config will operate on this (and rename on success):
51 my ($fh, $pi_config_tmp) = tempfile('pi-init-XXXXXXXX', DIR => $dir);
53 # Now, we grab another lock to use git-config(1) locking, so it won't
54 # wait on the lock, unlike some of our internal flock()-based locks.
55 # This is to prevent direct git-config(1) usage from clobbering our
57 my $lockfile = "$pi_config.lock";
59 sysopen($lockfh, $lockfile, O_RDWR|O_CREAT|O_EXCL) or do {
61 warn "could not open config file: $lockfile: $!\n";
64 END { unlink($lockfile) if $lockfh };
68 open(my $oh, '<', $pi_config) or die "unable to read $pi_config: $!\n";
71 defined $perm or die "(f)stat failed on $pi_config: $!\n";
72 chmod($perm & 07777, $fh) or
73 die "(f)chmod failed on future $pi_config: $!\n";
79 print $fh $old or die "failed to write: $!\n";
80 close $oh or die "failed to close $pi_config: $!\n";
82 # yes, this conflict checking is racy if multiple instances of this
83 # script are run by the same $PI_DIR
84 my $cfg = PublicInbox::Config->new;
86 foreach my $addr (@address) {
87 my $found = $cfg->lookup($addr);
89 if ($found->{name} ne $name) {
91 "`$addr' already defined for ",
92 "`$found->{name}',\n",
93 "does not match intend `$name'\n";
101 exit(1) if $conflict;
103 my $ibx = $cfg->lookup_name($name);
105 if (!defined($indexlevel) && $ibx->{indexlevel}) {
106 $indexlevel = $ibx->{indexlevel};
110 close $fh or die "failed to close $pi_config_tmp: $!\n";
112 my $pfx = "publicinbox.$name";
113 my @x = (qw/git config/, "--file=$pi_config_tmp");
115 $mainrepo = abs_path($mainrepo);
116 if (-f "$mainrepo/inbox.lock") {
117 if (!defined $version) {
119 } elsif ($version != 2) {
120 die "$mainrepo is a -V2 repo, -V$version specified\n"
122 } elsif (-d "$mainrepo/objects") {
123 if (!defined $version) {
125 } elsif ($version != 1) {
126 die "$mainrepo is a -V1 repo, -V$version specified\n"
130 $version = 1 unless defined $version;
132 if ($version == 1 && defined $skip_epoch) {
133 die "--skip-epoch is only supported for -V2 repos\n";
136 my $ibx = PublicInbox::Inbox->new({
137 mainrepo => $mainrepo,
140 -primary_address => $address[0],
141 indexlevel => $indexlevel,
145 PublicInbox::InboxWritable->new($ibx, $creat_opt)->init_inbox(0, $skip_epoch);
147 # needed for git prior to v2.1.0
148 umask(0077) if defined $perm;
150 foreach my $addr (@address) {
151 next if $seen{lc($addr)};
152 x(@x, "--add", "$pfx.address", $addr);
154 x(@x, "$pfx.url", $http_url);
155 x(@x, "$pfx.mainrepo", $mainrepo);
157 if (defined($indexlevel)) {
158 x(@x, "$pfx.indexlevel", $indexlevel);
161 # needed for git prior to v2.1.0
163 chmod($perm & 07777, $pi_config_tmp) or
164 die "(f)chmod failed on future $pi_config: $!\n";
167 rename $pi_config_tmp, $pi_config or
168 die "failed to rename `$pi_config_tmp' to `$pi_config': $!\n";