1#  James Bigler, NVIDIA Corp (nvidia.com - jbigler)
2#  Abe Stephens, SCI Institute -- http://www.sci.utah.edu/~abe/FindCuda.html
3#
4#  Copyright (c) 2008 - 2009 NVIDIA Corporation.  All rights reserved.
5#
6#  Copyright (c) 2007-2009
7#  Scientific Computing and Imaging Institute, University of Utah
8#
9#  This code is licensed under the MIT License.  See the FindCUDA.cmake script
10#  for the text of the license.
11
12# The MIT License
13#
14# License for the specific language governing rights and limitations under
15# Permission is hereby granted, free of charge, to any person obtaining a
16# copy of this software and associated documentation files (the "Software"),
17# to deal in the Software without restriction, including without limitation
18# the rights to use, copy, modify, merge, publish, distribute, sublicense,
19# and/or sell copies of the Software, and to permit persons to whom the
20# Software is furnished to do so, subject to the following conditions:
21#
22# The above copyright notice and this permission notice shall be included
23# in all copies or substantial portions of the Software.
24#
25# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
26# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
27# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
28# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
29# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
30# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
31# DEALINGS IN THE SOFTWARE.
32#
33
34#######################################################################
35# This converts a file written in makefile syntax into one that can be included
36# by CMake.
37
38# Input variables
39#
40# verbose:BOOL=<>          OFF: Be as quiet as possible (default)
41#                          ON : Extra output
42#
43# input_file:FILEPATH=<>   Path to dependency file in makefile format
44#
45# output_file:FILEPATH=<>  Path to file with dependencies in CMake readable variable
46#
47
48file(READ ${input_file} depend_text)
49
50if (NOT "${depend_text}" STREQUAL "")
51
52  # message("FOUND DEPENDS")
53
54  string(REPLACE "\\ " " " depend_text ${depend_text})
55
56  # This works for the nvcc -M generated dependency files.
57  string(REGEX REPLACE "^.* : " "" depend_text ${depend_text})
58  string(REGEX REPLACE "[ \\\\]*\n" ";" depend_text ${depend_text})
59
60  set(dependency_list "")
61
62  foreach(file ${depend_text})
63
64    string(REGEX REPLACE "^ +" "" file ${file})
65
66    # OK, now if we had a UNC path, nvcc has a tendency to only output the first '/'
67    # instead of '//'.  Here we will test to see if the file exists, if it doesn't then
68    # try to prepend another '/' to the path and test again.  If it still fails remove the
69    # path.
70
71    if(NOT EXISTS "${file}")
72      if (EXISTS "/${file}")
73        set(file "/${file}")
74      else()
75        if(verbose)
76          message(WARNING " Removing non-existent dependency file: ${file}")
77        endif()
78        set(file "")
79      endif()
80    endif()
81
82    # Make sure we check to see if we have a file, before asking if it is not a directory.
83    # if(NOT IS_DIRECTORY "") will return TRUE.
84    if(file AND NOT IS_DIRECTORY "${file}")
85      # If softlinks start to matter, we should change this to REALPATH.  For now we need
86      # to flatten paths, because nvcc can generate stuff like /bin/../include instead of
87      # just /include.
88      get_filename_component(file_absolute "${file}" ABSOLUTE)
89      list(APPEND dependency_list "${file_absolute}")
90    endif()
91
92  endforeach()
93
94else()
95  # message("FOUND NO DEPENDS")
96endif()
97
98# Remove the duplicate entries and sort them.
99list(REMOVE_DUPLICATES dependency_list)
100list(SORT dependency_list)
101
102foreach(file ${dependency_list})
103  string(APPEND cuda_nvcc_depend " \"${file}\"\n")
104endforeach()
105
106file(WRITE ${output_file} "# Generated by: make2cmake.cmake\nSET(CUDA_NVCC_DEPEND\n ${cuda_nvcc_depend})\n\n")
107