determine the top directory. This allows the tool to find the correct top
directory when you have something like:

   /x/llvm
   /x/llvm2
   /x/llvm3

Previously the scripts would always find /x/llvm even if you were in the
llvm2 or llvm3 directory because the pattern didn't allow the digits at
the end of the path.

llvm-svn: 26751

llvm-svn: 25466

llvm-svn: 16844

llvm-svn: 16843

llvm-svn: 16831

llvm-svn: 16805

llvm-svn: 16444

specification was too liberal in some areas and missing things in others.
This specification is based on the actual extensions found in the source
tree.

llvm-svn: 16443

allowing the set of directories searched to be specified either by the
LLVMDO_DIRS env var or by the -dirs "dirs..." command line option.

llvm-svn: 16441

llvm-svn: 16391

This is like llvmgrep but instead of running grep, it runs the command
given by the first argument. For example, to find the top ten files with
the most lines in llvm, you could:

utils/llvmdo wc -l | sort -nb | tail

Or, to find any source files with the wrong permissions, you could:

utils/llvmdo ls -l | grep -v rw-r--r--

Hopefully, you get the idea.

llvm-svn: 15246

llvm-svn: 14676

replacement for getsrcs.sh which now generates too much text to put on a
Linux command line. The approach taken with llvmgrep is to execute a find
command and execute a grep on each file that matches the name pattern. The
arguments to this script are the same as those of egrep. Note that the -H
and -n options to egrep will always be passed so that you always get the
file and line number of matches.

llvm-svn: 14255