-# Copyright (C) 2014-2019 all contributors <meta@public-inbox.org>
+# Copyright (C) 2014-2020 all contributors <meta@public-inbox.org>
# License: GPLv2 or later <https://www.gnu.org/licenses/gpl-2.0.txt>
#
# Used to read files from a git repository without excessive forking.
package PublicInbox::Git;
use strict;
use warnings;
-use POSIX qw(dup2);
+use POSIX ();
use IO::Handle; # ->autoflush
-use PublicInbox::Spawn qw(spawn popen_rd);
+use File::Glob qw(bsd_glob GLOB_NOSORT);
+use PublicInbox::Spawn qw(popen_rd);
use PublicInbox::Tmpfile;
use base qw(Exporter);
our @EXPORT_OK = qw(git_unquote git_quote);
sub new {
my ($class, $git_dir) = @_;
- my @st;
- $st[7] = $st[10] = 0;
# may contain {-tmp} field for File::Temp::Dir
- bless { git_dir => $git_dir, st => \@st, -git_path => {} }, $class
+ bless { git_dir => $git_dir, alt_st => '', -git_path => {} }, $class
}
sub git_path ($$) {
my ($self) = @_;
my $alt = git_path($self, 'objects/info/alternates');
my @st = stat($alt) or return 0;
- my $old_st = $self->{st};
- # 10 - ctime, 7 - size
- return 0 if ($st[10] == $old_st->[10] && $st[7] == $old_st->[7]);
- $self->{st} = \@st;
+
+ # can't rely on 'q' on some 32-bit builds, but `d' works
+ my $st = pack('dd', $st[10], $st[7]); # 10: ctime, 7: size
+ return 0 if $self->{alt_st} eq $st;
+ $self->{alt_st} = $st; # always a true value
}
sub last_check_err {
}
return;
}
- my ($in_r, $in_w, $out_r, $out_w);
-
- pipe($in_r, $in_w) or fail($self, "pipe failed: $!");
+ my ($out_r, $out_w);
pipe($out_r, $out_w) or fail($self, "pipe failed: $!");
- if ($^O eq 'linux') { # 1031: F_SETPIPE_SZ
- fcntl($out_w, 1031, 4096);
- fcntl($in_w, 1031, 4096) if $batch eq '--batch-check';
- }
-
my @cmd = (qw(git), "--git-dir=$self->{git_dir}",
qw(-c core.abbrev=40 cat-file), $batch);
- my $redir = { 0 => $out_r, 1 => $in_w };
+ my $redir = { 0 => $out_r };
if ($err) {
my $id = "git.$self->{git_dir}$batch.err";
my $fh = tmpfile($id) or fail($self, "tmpfile($id): $!");
$self->{$err} = $fh;
$redir->{2} = $fh;
}
- my $p = spawn(\@cmd, undef, $redir);
- defined $p or fail($self, "spawn failed: $!");
+ my ($in_r, $p) = popen_rd(\@cmd, undef, $redir);
$self->{$pid} = $p;
$out_w->autoflush(1);
+ if ($^O eq 'linux') { # 1031: F_SETPIPE_SZ
+ fcntl($out_w, 1031, 4096);
+ fcntl($in_r, 1031, 4096) if $batch eq '--batch-check';
+ }
$self->{$out} = $out_w;
$self->{$in} = $in_r;
}
sub qx {
my ($self, @cmd) = @_;
my $fh = $self->popen(@cmd);
- defined $fh or return;
local $/ = "\n";
return <$fh> if wantarray;
local $/;
my ($self) = @_;
my $n = 0;
my $pack_dir = git_path($self, 'objects/pack');
- foreach my $p (glob("$pack_dir/*.pack")) {
+ foreach my $p (bsd_glob("$pack_dir/*.pack", GLOB_NOSORT)) {
$n += -s $p;
}
$n
my ($env, $url) = @_;
return $url if index($url, '//') >= 0;
my $scheme = $env->{'psgi.url_scheme'};
- my $host_port = $env->{HTTP_HOST} ||
+ my $host_port = $env->{HTTP_HOST} //
"$env->{SERVER_NAME}:$env->{SERVER_PORT}";
"$scheme://$host_port". ($env->{SCRIPT_NAME} || '/') . $url;
}
push(@$inflight, [ $cb, $arg ]);
}
-sub commit_title ($$) {
- my ($self, $oid) = @_; # PublicInbox::Git, $sha1hex
- my $buf = cat_file($self, $oid) or return;
- utf8::decode($$buf);
- ($$buf =~ /\r?\n\r?\n([^\r\n]+)\r?\n?/)[0]
+sub extract_cmt_time {
+ my ($bref, undef, undef, undef, $modified) = @_;
+
+ if ($$bref =~ /^committer .*?> ([0-9]+) [\+\-]?[0-9]+/sm) {
+ my $cmt_time = $1 + 0;
+ $$modified = $cmt_time if $cmt_time > $$modified;
+ }
}
# returns the modified time of a git repo, same as the "modified" field
my ($self) = @_;
my $modified = 0;
my $fh = popen($self, qw(rev-parse --branches));
- defined $fh or return $modified;
+ cat_async_begin($self);
local $/ = "\n";
- foreach my $oid (<$fh>) {
+ while (my $oid = <$fh>) {
chomp $oid;
- my $buf = cat_file($self, $oid) or next;
- $$buf =~ /^committer .*?> ([0-9]+) [\+\-]?[0-9]+/sm or next;
- my $cmt_time = $1 + 0;
- $modified = $cmt_time if $cmt_time > $modified;
+ cat_async($self, $oid, \&extract_cmt_time, \$modified);
}
+ cat_async_wait($self);
$modified || time;
}