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#! /usr/bin/perl
# Copyright (C) 2017 The Qt Company Ltd.
# Contact: http://www.qt.io/licensing/
#
# You may use this file under the terms of the 3-clause BSD license.
# See the file LICENSE from this package for details.
#
use strict;
use warnings;
use JSON;
# Usage: $0 <project> <SHA1> [instance]
# - default instance is 'sanitybot'
# - configure git: git config --global <instance>.<option> <value>
# Valid options are:
# watches (optional)
# Space-separated list of path watches. Each watch requires an own
# section named watches.<name> with the following keys (note that
# these sections are NOT namespaced with the instance):
# projects (default ".*")
# Regular expression specifying the projects to watch.
# files
# Regular expression specifying the filepaths to watch.
# message (optional)
# The message to post when this watch triggers.
# invite (optional)
# Space-separated list of reviewers to add when this watch triggers.
die "usage: $0 <project> <SHA1> [instance]\n" if ($#ARGV < 1);
my $project = shift @ARGV;
my $rev = shift @ARGV;
my $instance = 'sanitybot';
$instance = $ARGV[0] if ($#ARGV > -1);
# Doing this is less expensive than calling git repeatedly.
my %config = ();
for (`git config -l`) {
/^([^=]+)=(.*$)/;
$config{$1} = $2;
}
sub getcfg($;$)
{
my ($key, $def) = @_;
my $fkey = $instance.'.'.$key;
if (defined $config{$fkey}) {
return $config{$fkey};
} elsif (@_ > 1) {
return $def;
} else {
die $fkey." not set.\n";
}
}
my @messages = ();
my %verdict = ();
my @invite = ();
my (@watches, %watch_files, %watch_messages, %watch_invites);
for my $w (split(/\s+/, getcfg('watches', ""))) {
my $p = $config{'watches.'.$w.'.projects'};
next if (defined($p) && $project !~ qr/^$p$/);
my $f = $config{'watches.'.$w.'.files'};
die "watches.$w.files not set.\n" if (!defined($f));
$watch_files{$w} = qr/^$f$/m;
$watch_messages{$w} = $config{'watches.'.$w.'.message'};
my $i = $config{'watches.'.$w.'.invite'};
$watch_invites{$w} = defined($i) ? [ split(/\s+/, $i) ] : [];
push @watches, $w;
}
my ($subject, $files);
{
local $/;
my $output = `git show --pretty=\%s\%x00 --name-only --ignore-submodules -C $rev`;
($subject, $files) = split(/\x00/, $output);
}
for my $w (@watches) {
if ($files =~ /$watch_files{$w}/) {
push @messages, $watch_messages{$w} if (defined($watch_messages{$w}));
push @invite, @{$watch_invites{$w}};
last;
}
}
my $cr = 0;
if ($subject =~ /^[<[]?[Ww]ip\b|\bWIP\b|\*{3}|^(.)\1*$/) {
unshift @messages, "Apparently pushing a Work In Progress";
$cr = -2;
} elsif ($subject =~ /^(?:squash|fixup)! /) {
unshift @messages, "Commit was meant to be squashed";
$cr = -2;
}
$verdict{labels}{'Code-Review'} = $cr;
$verdict{message} = join("\n\n", @messages) if (@messages);
$verdict{invite} = \@invite if (@invite);
print encode_json(\%verdict)."\n";
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