r190036 - Make error text if clang-format is not on the system PATH more helpful,

[Manuel Klimek]

Author: klimek
Date: Thu Sep  5 03:31:48 2013
New Revision: 190036

URL: http://llvm.org/viewvc/llvm-project?rev=190036&view=rev
Log:
Make error text if clang-format is not on the system PATH more helpful,
as this is going to be a common mistake (installing LLVM defaults to not putting
the tools onto the PATH).

Modified:
    cfe/trunk/tools/clang-format-vs/ClangFormat/ClangFormatPackage.cs

Modified: cfe/trunk/tools/clang-format-vs/ClangFormat/ClangFormatPackage.cs
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/tools/clang-format-vs/ClangFormat/ClangFormatPackage.cs?rev=190036&r1=190035&r2=190036&view=diff
==============================================================================
--- cfe/trunk/tools/clang-format-vs/ClangFormat/ClangFormatPackage.cs (original)
+++ cfe/trunk/tools/clang-format-vs/ClangFormat/ClangFormatPackage.cs Thu Sep  5 03:31:48 2013
@@ -148,7 +148,16 @@ namespace LLVM.ClangFormat
             // Thus, we:
             // 1. Start the process - clang-format.exe will start to read the input from the
             //    standard input.
-            process.Start();
+            try
+            {
+                process.Start();
+            }
+            catch (Exception e)
+            {
+                throw new Exception(
+                    "Cannot execute " + process.StartInfo.FileName + ".\n\"" + 
+                    e.Message + "\".\nPlease make sure it is on the PATH.");
+            }
             // 2. We write everything to the standard output - this cannot block, as clang-format
             //    reads the full standard input before analyzing it without writing anything to the
             //    standard output.