Move SkOSPath out of include/core.

It is moved to src/utils. It is almost a tool, but has two uses in
src/ports.

The existing SkOSFile.cpp is left empty for the time being since it is
mentioned in Chromium's BUILD.gn for Skia.

Change-Id: I3bb7f7c4214359eb6ab906bfe76737d20bf1d6c7
Reviewed-on: https://skia-review.googlesource.com/4536
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Ben Wagner <bungeman@google.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/src/utils/SkOSPath.cpp b/src/utils/SkOSPath.cpp
new file mode 100644
index 0000000000..d9a5ac53f3
--- /dev/null
+++ b/src/utils/SkOSPath.cpp
@@ -0,0 +1,45 @@
+/*
+ * Copyright 2011 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "SkOSPath.h"
+
+SkString SkOSPath::Join(const char *rootPath, const char *relativePath) {
+    SkString result(rootPath);
+    if (!result.endsWith(SEPARATOR) && !result.isEmpty()) {
+        result.appendUnichar(SEPARATOR);
+    }
+    result.append(relativePath);
+    return result;
+}
+
+SkString SkOSPath::Basename(const char* fullPath) {
+    if (!fullPath) {
+        return SkString();
+    }
+    const char* filename = strrchr(fullPath, SEPARATOR);
+    if (nullptr == filename) {
+        filename = fullPath;
+    } else {
+        ++filename;
+    }
+    return SkString(filename);
+}
+
+SkString SkOSPath::Dirname(const char* fullPath) {
+    if (!fullPath) {
+        return SkString();
+    }
+    const char* end = strrchr(fullPath, SEPARATOR);
+    if (nullptr == end) {
+        return SkString();
+    }
+    if (end == fullPath) {
+        SkASSERT(fullPath[0] == SEPARATOR);
+        ++end;
+    }
+    return SkString(fullPath, end - fullPath);
+}