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Add a function to generate a C array from a file

master
Gavin Howard 4 years ago
parent
commit
1485f33f61
Signed by: gavin GPG Key ID: C08038BDF280D33E
  1. 16
      functions.cmake
  2. 71
      gen_array.cmake.in

16
functions.cmake

@ -45,9 +45,25 @@ set(SCRIPT_DIR "${CMAKE_CURRENT_SOURCE_DIR}" CACHE INTERNAL "Directory of the me
set(STATIC_LIBS_LIST "${STATIC_LIBS_LIST}" CACHE INTERNAL "List of libraries to merge")
set(STATIC_LIBS_NAMES "${STATIC_LIBS_NAMES}" CACHE INTERNAL "List of library target names")
set(FUNCTIONS_DIR "${CMAKE_CURRENT_LIST_DIR}" CACHE INTERNAL "Directory of the functions.cmake file")
# For some reason, we get stupid CMake warnings.
cmake_policy(SET CMP0026 NEW)
function(gen_c_array infile outfile array_name target start_line)
set(script "${CMAKE_CURRENT_BINARY_DIR}/${target}_script.cmake")
configure_file("${FUNCTIONS_DIR}/gen_array.cmake.in" "${script}" @ONLY)
add_custom_command(OUTPUT "${outfile}" COMMAND ${CMAKE_COMMAND} -P ${script})
add_custom_target("${target}_script" DEPENDS "${outfile}")
add_library("${target}" "${outfile}")
add_dependencies("${target}" "${target}_script")
endfunction(gen_c_array)
function(static_lib_path var lib_output_name)
# Build the path.

71
gen_array.cmake.in

@ -0,0 +1,71 @@
# ***** BEGIN LICENSE BLOCK *****
#
# Copyright 2017 Yzena Tech
#
# Licensed under the Apache License, Version 2.0 (the "Apache License")
# with the following modification; you may not use this file except in
# compliance with the Apache License and the following modification to it:
# Section 6. Trademarks. is deleted and replaced with:
#
# 6. Trademarks. This License does not grant permission to use the trade
# names, trademarks, service marks, or product names of the Licensor
# and its affiliates, except as required to comply with Section 4(c) of
# the License and to reproduce the content of the NOTICE file.
#
# You may obtain a copy of the Apache License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the Apache License with the above modification is
# distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the Apache License for the specific
# language governing permissions and limitations under the Apache License.
#
# ****** END LICENSE BLOCK ******
# Generate a C source array from a file
message(STATUS "Generating @outfile@ with array: \"const char @array_name@[]\"...")
file(READ "@CMAKE_CURRENT_SOURCE_DIR@/@infile@" contents HEX)
set(start_line @start_line@)
math(EXPR start_line "${start_line} - 1")
file(WRITE "@outfile@" "// @outfile@\n")
file(APPEND "@outfile@" "// AUTOMATICALLY GENERATED: DO NOT MODIFY\n")
string(REGEX MATCHALL ".." output "${contents}")
string(LENGTH "${contents}" contents_length)
set(lines 0)
list(LENGTH output len)
foreach(iter RANGE 1 ${len})
list(GET output "${iter}" line)
if("${line}" EQUAL "0a")
math(EXPR lines "${lines} + 1")
if("${lines}" EQUAL "${start_line}")
math(EXPR start "${iter} + 1")
break()
endif()
endif()
endforeach()
foreach(iter RANGE 1 ${start})
list(REMOVE_AT output 0)
endforeach()
string(REGEX REPLACE ";" ",\n0x" output "${output}")
file(APPEND "@outfile@" "const char @array_name@[] = {0x${output},\n0x0};")
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