From 1036d056466e66567859e386e22dcdab07e3e48c Mon Sep 17 00:00:00 2001
From: Andrei Alexandrescu <andrei@erdani.com>
Date: Fri, 16 May 2008 21:07:50 +0000
Subject: [PATCH] Changed Boolean function signatures (e.g. exists) to return
 bool instead of int. Got rid of some gotos. Added the readText, lastModified,
 mkdirRecurse, and rmdirRecurse functions.

---
 std/file.d | 38 +++++++++++++++++++++++++++++++++++++-
 1 file changed, 37 insertions(+), 1 deletion(-)

diff --git a/std/file.d b/std/file.d
index 7870ee23d..47ffff32d 100644
--- a/std/file.d
+++ b/std/file.d
@@ -940,7 +940,7 @@ void[] read(string name)
  *      
  */
 
-S readText(S)(in string name)
+S readText(S = string)(in string name)
 {
     auto result = cast(S) read(name);
     std.utf.validate(result);
@@ -1199,6 +1199,17 @@ void mkdir(string pathname)
     cenforce(std.c.linux.linux.mkdir(toStringz(pathname), 0777) == 0, pathname);
 }
 
+/****************************************************
+ * Make directory and all parent directories as needed.
+ */
+
+void mkdirRecurse(string pathname)
+{
+    invariant left = dirname(pathname);
+    exists(left) || mkdirRecurse(left);
+    mkdir(pathname);
+}
+
 /****************************************************
  * Remove directory.
  */
@@ -1208,6 +1219,31 @@ void rmdir(string pathname)
     cenforce(std.c.linux.linux.rmdir(toStringz(pathname)) == 0, pathname);
 }
 
+/****************************************************
+Remove directory and all of its content and subdirectories,
+recursively.
+ */
+
+void rmdirRecurse(string pathname)
+{
+    // all children, recursively depth-first
+    foreach (DirEntry e; dirEntries(pathname, SpanMode.depth))
+    {
+        e.isdir ? rmdir(e.name) : remove(e.name);
+    }
+    // the dir itself
+    rmdir(pathname);
+}
+
+unittest
+{
+    auto d = "/tmp/deleteme/a/b/c/d/e/f/g";
+    enforce(collectException(mkdir(d)));
+    mkdirRecurse(d);
+    rmdirRecurse("/tmp/deleteme");
+    enforce(!exists("/tmp/deleteme"));
+}
+
 /****************************************************
  * Get current directory.
  */