Handle pkgbase array overrides gracefully

Instead of overwriting arrays, such as depends, from the pkgbase
section, new entries should be appended. Replace array_merge() with a
mixture of array_merge_recursive() and array_replace_recursive() that
merges array fields and replaces non-array fields.

Signed-off-by: Lukas Fleischer <archlinux@cryptocrack.de>

2 files changed, 27 insertions, 2 deletions

diff --git a/web/html/pkgsubmit.php b/web/html/pkgsubmit.php
index 045b8f9..11206e1 100644
--- a/web/html/pkgsubmit.php
+++ b/web/html/pkgsubmit.php
@@ -147,7 +147,7 @@ if ($uid):
 					if (isset($section_info['pkgbase'])) {
 						$pkgbase_info = $section_info;
 					} elseif (isset($section_info['pkgname'])) {
-						$pkginfo[] = array_merge($pkgbase_info, $section_info);
+						$pkginfo[] = array_pkgbuild_merge($pkgbase_info, $section_info);
 					}
 				}
 				$section_info = array(
@@ -180,7 +180,7 @@ if ($uid):
 			if (isset($section_info['pkgbase'])) {
 				$pkgbase_info = $section_info;
 			} elseif (isset($section_info['pkgname'])) {
-				$pkginfo[] = array_merge($pkgbase_info, $section_info);
+				$pkginfo[] = array_pkgbuild_merge($pkgbase_info, $section_info);
 			}
 		} else {
 			/* Use data from the PKGBUILD parser (deprecated!) */
diff --git a/web/lib/aur.inc.php b/web/lib/aur.inc.php
index 16aa261..b41b720 100644
--- a/web/lib/aur.inc.php
+++ b/web/lib/aur.inc.php
@@ -572,3 +572,28 @@ function latest_pkgs($numpkgs) {
 
 	return $packages;
 }
+
+/**
+ * Merge pkgbase and package options
+ *
+ * Merges entries of the first and the second array. If any key appears in both
+ * arrays and the corresponding value is an array itself, the arrays are
+ * merged. If a key appears in both arrays and the corresponding value is not
+ * an array, the second value replaces the first one.
+ *
+ * @param array $pkgbase_info Options from the pkgbase section
+ * @param array $section_info Options from the package section
+ *
+ * @return array Merged information from both sections
+ */
+function array_pkgbuild_merge($pkgbase_info, $section_info) {
+	$pi = $pkgbase_info;
+	foreach ($section_info as $opt_key => $opt_val) {
+		if (is_array($opt_val)) {
+			$pi[$opt_key] += $opt_val;
+		} else {
+			$pi[$opt_key] = $opt_val;
+		}
+	}
+	return $pi;
+}