From adacaef799455013bf00b85a43237ac8d9471ade Mon Sep 17 00:00:00 2001
From: Mike Klein <mtklein@chromium.org>
Date: Mon, 6 Feb 2017 09:26:14 -0500
Subject: [PATCH] iOS: cd into Documents folder at startup

CQ_INCLUDE_TRYBOTS=skia.primary:Test-iOS-Clang-iPadMini4-GPU-GX6450-arm-Release

Change-Id: I7beadad742bc9444491c7a315a827297a636d70d
Reviewed-on: https://skia-review.googlesource.com/8049
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
---
 BUILD.gn            |  5 +++++
 bench/nanobench.cpp |  4 ++++
 dm/DM.cpp           |  4 ++++
 tools/ios_utils.h   | 23 +++++++++++++++++++++++
 tools/ios_utils.m   | 19 +++++++++++++++++++
 5 files changed, 55 insertions(+)
 create mode 100644 tools/ios_utils.h
 create mode 100644 tools/ios_utils.m

diff --git a/BUILD.gn b/BUILD.gn
index 25b68b4..c19b3bd 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -910,6 +910,11 @@ if (skia_enable_tools) {
       "tools/sk_tool_utils_font.cpp",
       "tools/timer/Timer.cpp",
     ]
+    libs = []
+    if (is_ios) {
+      sources += [ "tools/ios_utils.m" ]
+      libs += [ "Foundation.framework" ]
+    }
     deps = [
       ":common_flags",
       ":flags",
diff --git a/bench/nanobench.cpp b/bench/nanobench.cpp
index c2afca6..4e1da2b 100644
--- a/bench/nanobench.cpp
+++ b/bench/nanobench.cpp
@@ -23,6 +23,7 @@
 #include "SKPAnimationBench.h"
 #include "SKPBench.h"
 #include "Stats.h"
+#include "ios_utils.h"
 
 #include "SkAndroidCodec.h"
 #include "SkAutoMalloc.h"
@@ -1096,6 +1097,9 @@ static void start_keepalive() {
 
 int nanobench_main();
 int nanobench_main() {
+#if defined(SK_BUILD_FOR_IOS)
+    cd_Documents();
+#endif
     SetupCrashHandler();
     SkAutoGraphics ag;
     SkTaskGroup::Enabler enabled(FLAGS_threads);
diff --git a/dm/DM.cpp b/dm/DM.cpp
index 6dc1bd9..e371bbc 100644
--- a/dm/DM.cpp
+++ b/dm/DM.cpp
@@ -32,6 +32,7 @@
 #include "SkThreadUtils.h"
 #include "Test.h"
 #include "Timer.h"
+#include "ios_utils.h"
 #include "picture_utils.h"
 #include "sk_tool_utils.h"
 #include "SkScan.h"
@@ -1284,6 +1285,9 @@ extern sk_sp<SkTypeface> (*gCreateTypefaceDelegate)(const char [], SkFontStyle )
 
 int dm_main();
 int dm_main() {
+#if defined(SK_BUILD_FOR_IOS)
+    cd_Documents();
+#endif
     setbuf(stdout, nullptr);
     setup_crash_handler();
 
diff --git a/tools/ios_utils.h b/tools/ios_utils.h
new file mode 100644
index 0000000..0287dc1
--- /dev/null
+++ b/tools/ios_utils.h
@@ -0,0 +1,23 @@
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef ios_util_DEFINED
+#define ios_util_DEFINED
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+    // cd into the current app's Documents/ directory.
+    // (This is the only directory we can easily read and write.)
+    void cd_Documents();
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif//ios_util_DEFINED
diff --git a/tools/ios_utils.m b/tools/ios_utils.m
new file mode 100644
index 0000000..b88ab5b
--- /dev/null
+++ b/tools/ios_utils.m
@@ -0,0 +1,19 @@
+/*
+ * Copyright 2017 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#import <Foundation/Foundation.h>
+#include "ios_utils.h"
+#include <unistd.h>
+
+void cd_Documents() {
+    @autoreleasepool {
+        NSURL* dir = [[[NSFileManager defaultManager]
+            URLsForDirectory:NSDocumentDirectory
+                   inDomains:NSUserDomainMask] lastObject];
+        chdir([dir.path UTF8String]);
+    }
+}
-- 
2.7.4