CC-2518: Auto install script for manual install

- install dir is renamed to install_minimal
- virtualenv command is moved to install script.
- need more work on install_full part

install_minimal/include/airtime-uninstall.php

@@ -0,0 +1,87 @@
+<?php
+/**
+ * @package Airtime
+ * @copyright 2010 Sourcefabric O.P.S.
+ * @license http://www.gnu.org/licenses/gpl.txt
+ */
+
+require_once(dirname(__FILE__).'/AirtimeIni.php');
+require_once(dirname(__FILE__).'/AirtimeInstall.php');
+// Need to check that we are superuser before running this.
+AirtimeInstall::ExitIfNotRoot();
+
+if (!file_exists(AirtimeIni::CONF_FILE_AIRTIME)) {
+    echo PHP_EOL."Airtime config file '".AirtimeIni::CONF_FILE_AIRTIME."' does not exist.".PHP_EOL;
+    echo "Most likely this means that Airtime is not installed, so there is nothing to do.".PHP_EOL.PHP_EOL;
+    exit();
+}
+require_once(AirtimeInstall::GetAirtimeSrcDir().'/application/configs/constants.php');
+require_once(AirtimeInstall::GetAirtimeSrcDir().'/application/configs/conf.php');
+
+echo PHP_EOL;
+echo "* Uninstalling Airtime ".AIRTIME_VERSION.PHP_EOL;
+AirtimeInstall::UninstallPhpCode();
+
+//------------------------------------------------------------------------
+// Delete the database
+// Note: Do not put a call to AirtimeInstall::DbConnect()
+// before this function, even if you called $CC_DBC->disconnect(), there will
+// still be a connection to the database and you wont be able to delete it.
+//------------------------------------------------------------------------
+echo " * Dropping the database '".$CC_CONFIG['dsn']['database']."'...".PHP_EOL;
+
+// check if DB exists
+$command = "echo \"DROP DATABASE IF EXISTS ".$CC_CONFIG['dsn']['database']."\" | su postgres -c psql";
+
+@exec($command, $output, $dbDeleteFailed);
+
+//------------------------------------------------------------------------
+// Delete DB tables
+// We do this if dropping the database fails above.
+//------------------------------------------------------------------------
+if ($dbDeleteFailed) {
+    echo " * Couldn't delete the database, so deleting all the DB tables...".PHP_EOL;
+    AirtimeInstall::DbConnect(false);
+
+    if (!PEAR::isError($CC_DBC)) {
+        $sql = "select * from pg_tables where tableowner = 'airtime'";
+        $rows = $CC_DBC->GetAll($sql);
+        if (PEAR::isError($rows)) {
+            $rows = array();
+        }
+
+        foreach ($rows as $row) {
+            $tablename = $row["tablename"];
+            echo "   * Removing database table $tablename...";
+
+            if (AirtimeInstall::DbTableExists($tablename)){
+                $sql = "DROP TABLE $tablename CASCADE";
+                AirtimeInstall::InstallQuery($sql, false);
+
+                $CC_DBC->dropSequence($tablename."_id");
+            }
+            echo "done.".PHP_EOL;
+        }
+    }
+}
+
+//------------------------------------------------------------------------
+// Delete the user
+//------------------------------------------------------------------------
+echo " * Deleting database user '{$CC_CONFIG['dsn']['username']}'...".PHP_EOL;
+$command = "echo \"DROP USER IF EXISTS {$CC_CONFIG['dsn']['username']}\" | su postgres -c psql >/dev/null 2>&1";
+@exec($command, $output, $results);
+if ($results == 0) {
+    echo "   * User '{$CC_CONFIG['dsn']['username']}' deleted.".PHP_EOL;
+} else {
+    echo "   * Nothing to delete.".PHP_EOL;
+}
+
+AirtimeInstall::RemoveSymlinks();
+AirtimeInstall::UninstallBinaries();
+AirtimeInstall::RemoveLogDirectories();
+AirtimeIni::RemoveMonitFile();
+
+@unlink('/etc/cron.d/airtime-crons');
+
+/* FINISHED AIRTIME PHP UNINSTALLER */