Merge pull request #56 from boesing/feature/lowest-latest-php-aliases

Add `@lowest` and `@latest` alias to `php` configuration option

Author: boesing

README.md

@@ -84,7 +84,7 @@ The "job" element will have the following elements, but is not restricted to the
 
 ```json
 {
-  "php": "(optional) string PHP minor version to run against",
+  "php": "(optional) string PHP minor version to run against; @lowest and @latest aliases point to the minimum and maximum PHP versions which are supported by the project",
   "extensions": [
     "(optional) extension names to install; names are from the ondrej PHP repository, minus the php{VERSION}- prefix"
   ],

src/additional-checks.js

@@ -50,6 +50,14 @@ const discoverPhpVersionsForCheck = function (job, config) {
     }
 
     if (typeof job.php === 'string') {
+        if (job.php === '@lowest') {
+            return [config.minimum_version];
+        }
+
+        if (job.php === '@latest') {
+            return [config.latest_version];
+        }
+
         return [job.php];
     }
 

src/config.js

@@ -44,6 +44,7 @@ class Config {
     versions                           = [];
     stable_version                     = CURRENT_STABLE;
     minimum_version                    = CURRENT_STABLE;
+    latest_version                     = CURRENT_STABLE;
     locked_dependencies                = false;
     extensions                         = [];
     php_ini                            = ['memory_limit        = -1'];
@@ -69,10 +70,12 @@ class Config {
         if (configuration["stablePHP"] !== undefined) {
             this.stable_version = configuration["stablePHP"];
             this.minimum_version = this.stable_version;
+            this.latest_version = this.stable_version;
         }
 
         if (this.versions.length > 0) {
             this.minimum_version = this.versions[0]
+            this.latest_version = this.versions[this.versions.length - 1]
         }
 
         if (configuration.extensions !== undefined && Array.isArray(configuration.extensions)) {