Add perl syntax check test, add it to CI

Inspired by openQA's 01-compile-check-all.t, this adds a perl
test which checks the syntax of main.pm and all lib and test
files, and hooks it up to CI. Requires os-autoinst and
perl-Test-Strict.

Signed-off-by: Adam Williamson <awilliam@redhat.com>

.zuul.yaml

@@ -3,7 +3,13 @@
     run: ci/tox.yaml
     nodeset: fedora-31-vm
 
+- job:
+    name: os-autoinst-perl
+    run: ci/perl.yaml
+    nodeset: fedora-31-vm
+
 - project:
     check:
       jobs:
         - os-autoinst-tox
+        - os-autoinst-perl

ci/perl.yaml

@@ -0,0 +1,11 @@
+- hosts: all
+  tasks:
+    - name: Install required packages
+      package:
+        name: ['os-autoinst', 'perl-Test-Strict', 'perl-Test-Harness']
+        state: present
+      become: yes
+    - name: Run perl tests
+      command: prove t/
+      args:
+        chdir: '{{ zuul.project.src_dir }}'

lib/anacondatest.pm

@@ -1,4 +1,7 @@
 package anacondatest;
+
+use strict;
+
 use base 'basetest';
 
 # base class for all Anaconda (installation) tests

lib/fedoradistribution.pm

@@ -1,4 +1,7 @@
 package fedoradistribution;
+
+use strict;
+
 use base 'distribution';
 use Cwd;
 

lib/installedtest.pm

@@ -1,4 +1,7 @@
 package installedtest;
+
+use strict;
+
 use base 'basetest';
 
 # base class for tests that run on installed system

t/01-syntax.t

@@ -0,0 +1,7 @@
+#!/bin/perl
+
+use FindBin;
+unshift @INC, "/usr/libexec/os-autoinst", "$FindBin::Bin/../lib", "$FindBin::Bin/lib";
+
+use Test::Strict;
+all_perl_files_ok(qw 'main.pm lib tests');