From 180aac5c8608fe5a981505b22e61859b76dd6e44 Mon Sep 17 00:00:00 2001
From: Carlo Landmeter <clandmeter@gmail.com>
Date: Sat, 11 May 2013 17:24:13 +0200
Subject: Convert so names to pkg names in depends

---
 apk_browser.module | 62 ++++++++++++++++++++++++++++++++++++------------------
 1 file changed, 42 insertions(+), 20 deletions(-)

diff --git a/apk_browser.module b/apk_browser.module
index ec54659..f3e1512 100644
--- a/apk_browser.module
+++ b/apk_browser.module
@@ -398,6 +398,10 @@ function apk_browser_add_apk($package, $arch_tid, $repo_tid) {
     return $node->nid;
 }
 
+/*
+ *  take an apk tar string and convert it
+ *  to an associative array
+ */
 function apk_browser_apkindex_reader($apk_string) {
     //file_get_contents outputs string and php tar needs file
     $temp = tempnam("/tmp", "apk_");
@@ -406,6 +410,7 @@ function apk_browser_apkindex_reader($apk_string) {
     fclose($fp);
     $tar_object = new Archive_Tar($temp);
     $apkindex = $tar_object->extractInString("APKINDEX");
+    unlink($temp);
     //convert packages data into array
     $packages = preg_split("`\n\W+`", $apkindex);
     //remove last empty line
@@ -413,47 +418,64 @@ function apk_browser_apkindex_reader($apk_string) {
     foreach ($packages as $key => $package) {
         //convert packages lines into array
         $apackage = preg_split("`\n`", $package);
+        $pkg = array();
+        // format the package lines
         foreach ($apackage as $apk_line) {
             switch ($apk_line[0]) {
-                /*
-                 * Check all package names in install_if depends and provides
-                 * put them in arrays and remove version/abi numbers.
-                 * removing version/abi is a bit hackish.
-                 */
                 case "D":
                 case "i":
                 case "p":
                     $pkgnames = explode(" ", substr($apk_line, 2));
                     foreach ($pkgnames as $pkgname) {
                         $pkgname = explode('=', $pkgname);
-                        $result[$key][$apk_line[0]][] = $pkgname[0];
+                        $pkg[$apk_line[0]][] = $pkgname[0];
                     }
                     break;
-                //other apk variables
                 default:
-                    $result[$key][$apk_line[0]] = substr($apk_line, 2);
+                    $pkg[$apk_line[0]] = substr($apk_line, 2);
             }
         }
-    }
-    /*
-     * this should take care of having multiple packages with different
-     * version in repositories
-     */
-    foreach ($result as $pkg) {
-        //check if package name already exit in result array
+        // remove all double packages with lower version number
         if (isset($output[$pkg['P']])) {
-            //check if version number is higher then previous
             if ($output[$pkg['P']]['V'] < $pkg['V']) {
-                //if version is higher we overwrite package
                 $output[$pkg['P']] = $pkg;
             }
-            //all not matching packages we just write them
         } else {
             $output[$pkg['P']] = $pkg;
         }
     }
-    unlink($temp);
-    return $output;
+    return apk_browser_convert_provides($output);
+}
+
+/*
+ * convert provide so names to package names
+ * remove all duplicated pacakge names upon convert
+ */
+function apk_browser_convert_provides($packages) {
+    // create an associative array of so name and pkg name
+    foreach ($packages as $pkgname => $package) {
+        foreach ($package as $type => $field) {
+            if ($type == 'p') {
+                foreach ($field as $value) {
+                    $provides[$value] = $pkgname;
+                }
+            }
+        }
+    }
+    // convert every so name to pkg name
+    foreach ($packages as $pkgname => $package) {
+        foreach ($package as $type => $field) {
+            if ($type == 'D') {
+                foreach ($field as $key => $value) {
+                    if (substr($value, 0, 3) === "so:") {
+                        $packages[$pkgname][$type][$key] = $provides[$value];
+                    }
+                }
+                $packages[$pkgname][$type] = array_values(array_unique($packages[$pkgname][$type]));
+            }
+        }
+    }
+    return $packages;
 }
 
 //this is needed for auto views integration
-- 
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