From 25b7d8e0878e236e592434c10b3eb76490126579 Mon Sep 17 00:00:00 2001
From: Michael Wallner <mike@php.net>
Date: Sun, 9 Oct 2016 19:29:11 +0200
Subject: [PATCH] sourcedir: guess basic package info

---
 src/pharext/PackageInfo.php     | 67 +++++++++++++++++++++++++++++++++
 src/pharext/SourceDir/Basic.php | 10 ++++-
 src/pharext/SourceDir/Git.php   |  7 +++-
 3 files changed, 81 insertions(+), 3 deletions(-)
 create mode 100644 src/pharext/PackageInfo.php

diff --git a/src/pharext/PackageInfo.php b/src/pharext/PackageInfo.php
new file mode 100644
index 0000000..3e2a78d
--- /dev/null
+++ b/src/pharext/PackageInfo.php
@@ -0,0 +1,67 @@
+<?php
+
+namespace pharext;
+
+trait PackageInfo
+{
+	/**
+	 * @return array
+	 */
+	public function findPackageInfo($path) {
+		try {
+			if (!strlen($name = $this->findPackageName($path, $header))) {
+				return [];
+			}
+			if (!$release = $this->findPackageReleaseVersion($path, $header, strtoupper($name))) {
+				return [];
+			}
+		} catch (Exception $e) {
+			return [];
+		}
+
+		return compact("name", "release");
+	}
+
+	private function findPackageName($path, &$header = null) {
+		$grep_res = (new ExecCmd("grep"))->run(
+			array_merge(
+				["-HEo", "phpext_[^ ]+_ptr"],
+				explode("\n", (new ExecCmd("find"))->run([
+					$path, "-type", "f", "-name", "php_*.h"
+				])->getOutput())
+			)
+		)->getOutput();
+		if (!list($header, $phpext_ptr) = explode(":", $grep_res)) {
+			return [];
+		}
+		if (!$name = substr($phpext_ptr, 7, -4)) {
+			return [];
+		}
+		return $name;
+
+	}
+
+	private function findPackageReleaseVersion($path, $header, $uname) {
+		$cpp_tmp = new Tempfile("cpp");
+		$cpp_hnd = $cpp_tmp->getStream();
+		fprintf($cpp_hnd, "#include \"%s\"\n", $header);
+		fprintf($cpp_hnd, "#if defined(PHP_PECL_%s_VERSION)\n", $uname);
+		fprintf($cpp_hnd, "PHP_PECL_%s_VERSION\n", $uname);
+		fprintf($cpp_hnd, "#elif defined(PHP_%s_VERSION)\n", $uname);
+		fprintf($cpp_hnd, "PHP_%s_VERSION\n", $uname);
+		fprintf($cpp_hnd, "#elif defined(%s_VERSION)\n", $uname);
+		fprintf($cpp_hnd, "%s_VERSION\n", $uname);
+		fprintf($cpp_hnd, "#endif\n");
+		fflush($cpp_hnd);
+		$php_inc = (new ExecCmd((PHP_BINARY ?? "php")."-config"))->run([
+			"--includes"
+		])->getOutput();
+		$ext_inc = (new ExecCmd("find"))->run([
+			$path, "-not", "-path", "*/.*", "-type", "d", "-printf", "-I'%p' "
+		])->getOutput();
+		$cpp_res = (new ExecCmd("cpp $php_inc $ext_inc"))->run([
+			"-E", $cpp_tmp
+		])->getOutput();
+		return trim(substr($cpp_res, strrpos($cpp_res, "\n")), "\"\n");
+	}
+}
diff --git a/src/pharext/SourceDir/Basic.php b/src/pharext/SourceDir/Basic.php
index f960236..13891d0 100644
--- a/src/pharext/SourceDir/Basic.php
+++ b/src/pharext/SourceDir/Basic.php
@@ -4,6 +4,7 @@ namespace pharext\SourceDir;
 
 use pharext\Cli\Args;
 use pharext\License;
+use pharext\PackageInfo;
 use pharext\SourceDir;
 
 use FilesystemIterator;
@@ -16,6 +17,7 @@ use RecursiveIteratorIterator;
 class Basic implements IteratorAggregate, SourceDir
 {
 	use License;
+	use PackageInfo;
 	
 	private $path;
 	
@@ -26,9 +28,13 @@ class Basic implements IteratorAggregate, SourceDir
 	public function getBaseDir() {
 		return $this->path;
 	}
-	
+
+	/**
+	 * @inheritdoc
+	 * @return array
+	 */
 	public function getPackageInfo() {
-		return [];
+		return $this->findPackageInfo($this->getBaseDir());
 	}
 	
 	public function getLicense() {
diff --git a/src/pharext/SourceDir/Git.php b/src/pharext/SourceDir/Git.php
index 62dc24f..9c51c7d 100644
--- a/src/pharext/SourceDir/Git.php
+++ b/src/pharext/SourceDir/Git.php
@@ -3,8 +3,12 @@
 namespace pharext\SourceDir;
 
 use pharext\Cli\Args;
+use pharext\Exception;
+use pharext\ExecCmd;
 use pharext\License;
+use pharext\PackageInfo;
 use pharext\SourceDir;
+use pharext\Tempfile;
 
 /**
  * Extension source directory which is a git repo
@@ -12,6 +16,7 @@ use pharext\SourceDir;
 class Git implements \IteratorAggregate, SourceDir
 {
 	use License;
+	use PackageInfo;
 	
 	/**
 	 * Base directory
@@ -40,7 +45,7 @@ class Git implements \IteratorAggregate, SourceDir
 	 * @return array
 	 */
 	public function getPackageInfo() {
-		return [];
+		return $this->findPackageInfo($this->getBaseDir());
 	}
 
 	/**
-- 
2.30.2