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package Devscripts::Uscan::WatchSource::Parser;
use Moo::Role;
use Devscripts::Uscan::Output;
sub parseWatchFile {
my ($self, $watchFileHandle, $args) = @_;
# Read in paragraph mode
local $/ = "";
my $map = sub {
return map {
my @lines = split /\n/, $_;
my @res;
foreach my $line (@lines) {
# Skip comments and blank lines
next if $line =~ /^\s*(?:#.*)$/;
# Distinct rejection message for bad "version" line
if ($line =~ /^version\s*=\s*(.*?)\s*$/i and $1 >= 5) {
uscan_die
"Malformed version line: $line, only 'Version: X' is allowed when using version >= 5";
# Valid rfc822 field
} elsif ($line !~ /^([\w\-]+)\s*:\s*(.*?)\s*$/) {
die "Unable to parse line '$line', skipping";
}
my ($k, $v) = (lc($1), $2);
$k =~ s/-//g;
push @res, $k, $v;
}
push @res, _raw => $_;
return {@res};
} @_;
};
$self->commonOpts($map->($watchFileHandle->getline));
unless (%{ $self->commonOpts }) {
die "Unable to parse $args->{watchfile} empty header";
}
unless ($self->commonOpts->{version}) {
die 'Missing "Version" field in header, skipping '
. $args->{watchfile};
}
unless ($self->commonOpts->{version} >= 5) {
die
"Malformed file $args->{watchfile}, version $self->{commonOpts}->{version} is lower than 5";
}
if ($self->commonOpts->{version}
> $Devscripts::Uscan::Config::CURRENT_WATCHFILE_VERSION) {
die
"$args->{watchfile} uses a newer version ($self->{commonOpts}->{version}) than supported ("
. $Devscripts::Uscan::Config::CURRENT_WATCHFILE_VERSION
. '), skipping this file';
}
$self->watch_version($self->commonOpts->{version});
if ($self->commonOpts->{untrackable}) {
uscan_warn "Untrackable project: " . $self->commonOpts->{untrackable};
return;
}
my $line;
my $found;
while (defined($line = $watchFileHandle->getline)) {
$found++;
my $watchOptions = $map->($line);
unless ($watchOptions->{source} || $watchOptions->{template}) {
uscan_warn
"The following paragraph isn't well formatted, skipping it: << ==EOF==\n"
. $watchOptions->{_raw}
. "==EOF==\n";
next;
}
foreach my $k (keys %{ $self->commonOpts }) {
$watchOptions->{$k} //= $self->commonOpts->{$k};
}
push @{ $self->watchOptions }, $watchOptions;
}
if (!$found
and ($self->commonOpts->{source} or $self->commonOpts->{template})) {
push @{ $self->watchOptions },
{
map { ($_ => $self->commonOpts->{$_}) }
grep { $_ ne 'version' } keys %{ $self->commonOpts } };
}
}
1;
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