Implemented fresh configuration loader

* Fresh can now identify and load freshdocker.conf config files

CHANGES

@@ -26,4 +26,4 @@
 - Added option `--state` to override the state file name.
 - Renamed the lock file from `fresh.lock` to `.fresh.lock`.
 - Added option `--lockfile` to override lockfile file name.
-
+- Implemented the fresh configuration loader.

README.md

@@ -53,6 +53,15 @@ Check a specific image:
     $ fresh.phar --image my.private.repo/name/package:latest --check -w
     $ echo $?  # if 1, a newer version is available
 
+Check images defined in a custom configuration file:
+
+    $ cat freshdocker.conf
+    check:
+    - docker.hub.varametall.se/vara/varaprod-4:latest
+    $ bin/freshdocker -C fresh --check -v
+    # ..or..
+    $ bin/freshdocker -c freshdocker.conf --check -v
+
 For all available options, use the `--help` flag.
 
 Some of the options can be read from environment variables, for example `FRESH_AFER`

src/Refresher.php

@@ -297,12 +297,37 @@ class Refresher
                         $this->config = new ComposeConfiguration($configFile);
                         return;
                     }
+                    if (basename($configFile) == "freshdocker.conf") {
+                        $this->log->append("Using configuration file ".$this->path."/freshdocker.conf");
+                        $this->config = new LocalConfiguration($this->path."/freshdocker.conf");
+                        return;
+                    }
                 } else {
                     if (file_exists($this->path."/docker-compose.yml")) {
                         $this->log->append("Using configuration file ".$this->path."/docker-compose.yml");
                         $this->config = new ComposeConfiguration($this->path."/docker-compose.yml");
                         return;
                     }
+                    if (file_exists($this->path."/freshdocker.conf")) {
+                        $this->log->append("Using configuration file ".$this->path."/freshdocker.conf");
+                        $this->config = new LocalConfiguration($this->path."/freshdocker.conf");
+                        return;
+                    }
+                }
+                break;
+            case 'fresh':
+                if ($configFile) {
+                    if (basename($configFile) == "freshdocker.confl") {
+                        $this->log->append("Using configuration file ".$configFile);
+                        $this->config = new LocalConfiguration($configFile);
+                        return;
+                    }
+                } else {
+                    if (file_exists($this->path."/freshdocker.conf")) {
+                        $this->log->append("Using configuration file ".$this->path."/freshdocker.conf");
+                        $this->config = new LocalConfiguration($this->path."/freshdocker.conf");
+                        return;
+                    }
                 }
                 break;
             case 'compose':