From b1078fdb9fac747c19dbdacd24c2838aae7d9f6b Mon Sep 17 00:00:00 2001
From: Boris Kolpackov <boris@codesynthesis.com>
Date: Mon, 7 Sep 2015 15:59:37 +0200
Subject: Implement cfg-create command

---
 bpkg/utility.cxx | 80 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)

(limited to 'bpkg/utility.cxx')

diff --git a/bpkg/utility.cxx b/bpkg/utility.cxx
index c274563..1cd518b 100644
--- a/bpkg/utility.cxx
+++ b/bpkg/utility.cxx
@@ -6,6 +6,7 @@
 
 #include <system_error>
 
+#include <butl/process>
 #include <butl/filesystem>
 
 #include <bpkg/types>
@@ -43,4 +44,83 @@ namespace bpkg
       throw failed ();
     }
   }
+
+  bool
+  empty (const dir_path& d)
+  {
+    try
+    {
+      dir_iterator i (d);
+      return i == end (i);
+    }
+    catch (const system_error& e)
+    {
+      error << "unable to scan directory " << d << ": " << e.what ();
+      throw failed ();
+    }
+  }
+
+  void
+  mk (const dir_path& d)
+  {
+    try
+    {
+      try_mkdir (d);
+    }
+    catch (const system_error& e)
+    {
+      fail << "unable to create directory " << d << ": " << e.what ();
+    }
+  }
+
+  void
+  mk_p (const dir_path& d)
+  {
+    try
+    {
+      try_mkdir_p (d);
+    }
+    catch (const system_error& e)
+    {
+      fail << "unable to create directory " << d << ": " << e.what ();
+    }
+  }
+
+  void
+  rm_r (const dir_path& d, bool dir)
+  {
+    try
+    {
+      rmdir_r (d, dir);
+    }
+    catch (const system_error& e)
+    {
+      fail << "unable to remove " << (dir ? "" : "contents of ")
+           << "directory " << d << ": " << e.what ();
+    }
+  }
+
+  void
+  run (const char* const args[])
+  {
+    if (verb >= 2)
+      print_process (args);
+
+    try
+    {
+      process pr (args);
+
+      if (!pr.wait ())
+        throw failed (); // Assume the child issued diagnostics.
+    }
+    catch (const process_error& e)
+    {
+      error << "unable to execute " << args[0] << ": " << e.what ();
+
+      if (e.child ())
+        exit (1);
+
+      throw failed ();
+    }
+  }
 }
-- 
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