Add install step for dependencies

README.md

@@ -119,6 +119,10 @@ The following features are supported:
 
 ## Compilation
 
+You can install all dependencies of this project using the following command:
+
+    php install.php
+
 You can compile all files into a single "`api.php`" file using:
 
     php build.php

build.php

@@ -1,5 +1,7 @@
 <?php
 
+// combine src and vendor directories into a single file
+
 function removeIgnored(string $dir, array &$entries, array $ignore)
 {
     foreach ($entries as $i => $entry) {
@@ -34,8 +36,8 @@ function runDir(string $base, string $dir, array &$lines, array $ignore): int
             $data = preg_replace('/\s*<\?php\s+/s', '', $data, 1);
             $data = preg_replace('/^.*?(vendor\/autoload|declare\s*\(\s*strict_types\s*=\s*1).*?$/m', '', $data);
             array_push($lines, "// file: $dir/$entry");
-            if (!preg_match('/^\s*(namespace[^;]*);/', $data)){
-                $data = "namespace;\n".$data;
+            if (!preg_match('/^\s*(namespace[^;]*);/', $data)) {
+                $data = "namespace;\n" . $data;
             }
             foreach (explode("\n", trim($data)) as $line) {
                 if ($line) {

install.php

@@ -0,0 +1,11 @@
+<?php
+
+// download composer and install dependencies
+
+if (!file_exists('composer.phar')) {
+    $composer = file_get_contents('https://getcomposer.org/composer.phar');
+    file_put_contents('composer.phar', $composer);
+}
+exec('php composer.phar install');
+
+include 'patch.php';

patch.php

@@ -0,0 +1,50 @@
+<?php
+
+// patch files for PHP 7.0 compatibility
+
+function patchDir(string $base, string $dir): int
+{
+    $count = 0;
+    $entries = scandir($dir);
+    foreach ($entries as $entry) {
+        if ($entry === '.' || $entry === '..') {
+            continue;
+        }
+        $filename = "$base/$dir/$entry";
+        if (is_dir($filename)) {
+            $count += patchDir($base, "$dir/$entry");
+        }
+    }
+    foreach ($entries as $entry) {
+        $filename = "$base/$dir/$entry";
+        if (is_file($filename)) {
+            if (substr($entry, -4) != '.php') {
+                continue;
+            }
+            $patched = $original = file_get_contents($filename);
+            $patched = preg_replace('/\):\s*(\?[a-zA-Z]+|void)\s*\n/', ") /*:$1*/\n", $patched);
+            $patched = preg_replace('/(private|public|protected) const/', "/*$1*/ const", $patched);
+            if ($patched && $patched != $original) {
+                file_put_contents($filename, $patched);
+                $count++;
+            }
+        }
+    }
+    return $count;
+}
+
+function patch(string $base, array $dirs)
+{
+    $start = microtime(true);
+    $count = 0;
+    foreach ($dirs as $dir) {
+        $count += patchDir($base, $dir);
+    }
+    $end = microtime(true);
+    $time = ($end - $start) * 1000;
+    if ($count) {
+        fwrite(STDERR, sprintf("%d files patched in %d ms\n", $count, $time));
+    }
+}
+
+patch(__DIR__, ['vendor']);

update.php

@@ -8,51 +8,4 @@ if (!file_exists('composer.phar')) {
 }
 exec('php composer.phar update');
 
-// patch files for PHP 7.0 compatibility
-
-function patchDir(string $base, string $dir): int
-{
-    $count = 0;
-    $entries = scandir($dir);
-    foreach ($entries as $entry) {
-        if ($entry === '.' || $entry === '..') {
-            continue;
-        }
-        $filename = "$base/$dir/$entry";
-        if (is_dir($filename)) {
-            $count += patchDir($base, "$dir/$entry");
-        }
-    }
-    foreach ($entries as $entry) {
-        $filename = "$base/$dir/$entry";
-        if (is_file($filename)) {
-            if (substr($entry, -4) != '.php') {
-                continue;
-            }
-            $patched = $original = file_get_contents($filename);
-            $patched = preg_replace('/\):\s*(\?[a-zA-Z]+|void)\s*\n/', ") /*:$1*/\n", $patched);
-            $patched = preg_replace('/(private|public|protected) const/', "/*$1*/ const", $patched);
-            if ($patched && $patched != $original) {
-                file_put_contents($filename, $patched);
-                $count++;
-            }
-        }
-    }
-    return $count;
-}
-
-function patch(string $base, array $dirs)
-{
-    $start = microtime(true);
-    $count = 0;
-    foreach ($dirs as $dir) {
-        $count += patchDir($base, $dir);
-    }
-    $end = microtime(true);
-    $time = ($end - $start) * 1000;
-    if ($count) {
-        fwrite(STDERR, sprintf("%d files patched in %d ms\n", $count, $time));
-    }
-}
-
-patch(__DIR__, ['vendor']);
+include 'patch.php';