host file reading

diff --git a/lib/System/Introspector/Config.pm b/lib/System/Introspector/Config.pm
index 98697ab..ff71115 100644 (file)
--- a/lib/System/Introspector/Config.pm
+++ b/lib/System/Introspector/Config.pm
@@ -1,6 +1,7 @@
 package System::Introspector::Config;
 use Moo;
 use Config::General;
+use File::Basename;
 
 has config => (is => 'lazy');
 
@@ -15,14 +16,32 @@ sub _build_config {
 
 sub sudo_user { $_[0]->config->{sudo_user} }
 
-sub groups { keys %{ $_[0]->config->{group} || {} } }
+sub groups { sort keys %{ $_[0]->config->{group} || {} } }
 
 sub has_group { exists $_[0]->config->{group}{ $_[1] } }
 
+my $_load_host_file = sub {
+    my ($self, $path) = @_;
+    my $full_path = join '/', dirname($self->config_file), $path;
+    open my $fh, '<:utf8', $full_path
+        or die "Unable to read host_file '$full_path': $!\n";
+    my @hosts = <$fh>;
+    chomp @hosts;
+    return grep { m{\S} and not m{^\s*#} } @hosts;
+};
+
 sub hosts {
     my ($self) = @_;
     my $host_spec = $self->config->{host};
-    return ref($host_spec) ? @$host_spec : $host_spec;
+    my $host_file = $self->config->{host_file};
+    return(
+        ref($host_spec)
+            ? @$host_spec
+            : defined($host_spec) ? $host_spec : (),
+        defined($host_file)
+            ? $self->$_load_host_file($host_file)
+            : (),
+    );
 }
 
 sub user { $_[0]->config->{user} }

diff --git a/t/config.t b/t/config.t
new file mode 100644 (file)
index 0000000..d88a1b5
--- /dev/null
+++ b/t/config.t
@@ -0,0 +1,31 @@
+use strictures 1;
+use Test::More;
+use FindBin;
+
+use System::Introspector::Config;
+
+my $config = System::Introspector::Config->new(
+    config_file => "$FindBin::Bin/data/test.conf",
+);
+
+is $config->sudo_user, 'root', 'sudo user';
+is_deeply [$config->groups], [qw( stable unstable )], 'groups';
+ok $config->has_group('stable'), 'has group';
+ok !$config->has_group('none'), 'does not have group';
+is_deeply [$config->hosts], [qw( foo bar baz qux quux quuux )], 'hosts';
+is $config->user, 'introspect', 'user';
+
+is_deeply $config->config_for_group('stable'), {
+    introspect => {
+        Foo => {},
+        Bar => { sudo => 1 },
+    },
+}, 'multiple elements with one sudo';
+
+is_deeply $config->config_for_group('unstable'), {
+    introspect => {
+        Qux => { sudo => 1 },
+    },
+}, 'single element with group-wide sudo';
+
+done_testing;

diff --git a/t/data/from-hosts.txt b/t/data/from-hosts.txt
new file mode 100644 (file)
index 0000000..16bd88e
--- /dev/null
+++ b/t/data/from-hosts.txt
@@ -0,0 +1,6 @@
+baz
+qux
+quux
+
+# comment
+quuux

diff --git a/t/data/test.conf b/t/data/test.conf
new file mode 100644 (file)
index 0000000..9d8fc80
--- /dev/null
+++ b/t/data/test.conf
@@ -0,0 +1,20 @@
+host foo
+host bar
+
+host_file from-hosts.txt
+
+user introspect
+sudo_user root
+
+<group stable>
+    <introspect Foo/>
+    <introspect Bar>
+        sudo 1
+    </introspect>
+</group>
+
+<group unstable>
+    sudo 1
+    <introspect Qux/>
+</group>
+