utils/llvmdo

#!/bin/sh
##===- utils/llvmdo - Counts Lines Of Code -------------------*- Script -*-===##
# 
#                     The LLVM Compiler Infrastructure
#
# This file was developed by Reid Spencer and is distributed under the 
# University of Illinois Open Source License. See LICENSE.TXT for details.
# 
##===----------------------------------------------------------------------===##
#
# This script is a general purpose "apply" function for the source files in LLVM
# It uses "find" to locate all the source files and then applies the user's 
# command to them. As such, this command is often not used by itself much but
# the other find related tools (countloc.sh,llvmgrep,getsrcs.sh) are all based 
# on the implementation. This script defines "what is a source file" in LLVM and
# so should be maintained if new directories, new file extensions, etc. are 
# used in LLVM as it progresses.
#
# Usage:
#  llvmdo [-dirs "DIRNAMES..."] PROGRAM ARGS...
#
# The -dirs argument allows you to specify the set of directories that are 
# searched. By default, everything is searched. Note that you must use quotes
# around the list of directory names. After that you simply specify whatever
# program you want to run against each file and the arguments to give it. The
# PROGRAM will be given the file name as its last argument.
##===----------------------------------------------------------------------===##

if test $# -lt 1 ; then
  echo "Usage: llvmdo [-dirs "DIRNAMES..."] [-code-only] PROGRAM ARGS..."
  exit 1
fi

if test "$1" = "-dirs" ; then
  LLVMDO_DIRS="$2";
  shift ; shift
elif test -z "$LLVMDO_DIRS" ; then
  LLVMDO_DIRS="include lib tools utils runtime autoconf docs test examples projects"
fi

if test "$1" = "-code-only" ; then
  CODE_ONLY="set"
  shift
else
  CODE_ONLY=""
fi

if test "$1" = "" ; then
  echo "Missing program name to run"
  exit 1
fi

PROGRAM=`which $1`
if test ! -x "$PROGRAM" ; then
  echo "Can't execute $1"
  exit 1
fi
shift;

TOPDIR=`llvm-config --src-root`

if test -d "$TOPDIR" ; then
  cd $TOPDIR
  case `uname -s` in
    SunOS) find_prog=gfind ;;
    *) find_prog=find ;;
  esac
  paths_to_ignore="\
    -path */CVS -o \
    -path */CVS/* -o \
    -path docs/doxygen/* -o \
    -path docs/CommandGuide/html/* -o \
    -path docs/CommandGuide/man/* -o \
    -path docs/CommandGuide/ps/* -o \
    -path docs/CommandGuide/man/* -o \
    -path docs/HistoricalNotes/* -o \
    -path docs/img/* -o \
    -path */.libs/* -o \
    -path lib/Support/bzip2/* -o \
    -path projects/llvm-test/* \
  "
  files_to_match="\
       -name *.ac \
    -o -name *.b \
    -o -name *.c \
    -o -name *.cc \
    -o -name *.cfg \
    -o -name *.cpp \
    -o -name *.css \
    -o -name *.def \
    -o -name *.el \
    -o -name *.exp \
    -o -name *.gnuplot' \
    -o -name *.h \
    -o -name *.in \
    -o -name *.inc \
    -o -name *.l \
    -o -name *.ll \
    -o -name *.llx \
    -o -name *.lst \
    -o -name *.m4 \
    -o -name *.pl \
    -o -name *.py \
    -o -name *.sh \
    -o -name *.schema \
    -o -name *.st \
    -o -name *.tcl \
    -o -name *.td \
    -o -name *.tr \
    -o -name *.y \
    -o -name Make* \
    -o -name llvmdo \
    -o -name llvmgrep \
    -o -name check-each-file \
    -o -name codgen-diff \
    -o -name cvsupdate \
    -o -name llvm-native-gcc \
    -o -name llvm-native-gxx \
    -o -name makellvm \
    -o -path include/llvm/ADT/ilist \
    -o -path test/\*.ll \
    -o -path test/Scripts/not \
    -o -path runtime/\*.ll \
  "
  if test -z "$CODE_ONLY" ; then
    files_to_match="$files_to_match \
      -o -name *.footer \
      -o -name *.header \
      -o -name *.html \
      -o -name *.intro \
      -o -name *.pod \
      -o -name *.txt \
      -o -name *.TXT \
      -o -name *.vim \
      -o -name vimrc \
      -o -name README \
      -o -name COPYING.LIB \
      -o -name LICENSE* "
  fi
  files_to_ignore="\
       -name \.* \
    -o -name *~ \
    -o -name #* \
    -o -name *.cvs \
    -o -name configure \
    -o -name slow.ll \
    -o -name *libtool* \
    -o -name ltdl* \
    -o -name ltdl.m4 \
    -o -name ltmain.m4 \
    -o -name ltmain.sh \
    -o -name aclocal.m4 \
    -o -name acinclude.m4 \
    -o -name *VerifierIsReallySlow.llx \
    -o -name *LoopSimplifyCrash.ll \
    -o -name *AST-Remove.ll \
    -o -name llvmAsmParser.cpp \
    -o -name llvmAsmParser.h \
    -o -name Lexer.cpp \
    -o -name FileLexer.cpp \
    -o -name FileParser.cpp \
    -o -name FileParser.h \
    -o -name StackerParser.h \
    -o -name StackerParser.cpp \
    -o -name ConfigLexer.cpp \
    -o -name PPCPerfectShuffle.h \
  "

  # Turn off file name generation (globbing) so that substitution of the
  # variables doesn't cause the shell to create lists of file names
  set -f
  $find_prog $LLVMDO_DIRS -type f \
    \( $paths_to_ignore \) -prune \
    -o \( \( $files_to_match \) \! \( $files_to_ignore \) \
    -exec $PROGRAM "$@" {} \; \)
else
  echo "Can't find LLVM top directory in $TOPDIR"
fi