GetPrerequisites_2_8.cmake
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- # GetPrerequisites.cmake
- #
- # This script provides functions to list the .dll, .dylib or .so files that an
- # executable or shared library file depends on. (Its prerequisites.)
- #
- # It uses various tools to obtain the list of required shared library files:
- # dumpbin (Windows)
- # ldd (Linux/Unix)
- # otool (Mac OSX)
- #
- # The following functions are provided by this script:
- # gp_append_unique
- # is_file_executable
- # gp_item_default_embedded_path
- # (projects can override with gp_item_default_embedded_path_override)
- # gp_resolve_item
- # (projects can override with gp_resolve_item_override)
- # gp_resolved_file_type
- # gp_file_type
- # get_prerequisites
- # list_prerequisites
- # list_prerequisites_by_glob
- #
- # Requires CMake 2.6 or greater because it uses function, break, return and
- # PARENT_SCOPE.
- #=============================================================================
- # Copyright 2008-2009 Kitware, Inc.
- #
- # Distributed under the OSI-approved BSD License (the "License");
- # see accompanying file Copyright.txt for details.
- #
- # This software is distributed WITHOUT ANY WARRANTY; without even the
- # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
- # See the License for more information.
- #=============================================================================
- # (To distributed this file outside of CMake, substitute the full
- # License text for the above reference.)
- # gp_append_unique list_var value
- #
- # Append value to the list variable ${list_var} only if the value is not
- # already in the list.
- #
- function(gp_append_unique list_var value)
- set(contains 0)
- foreach(item ${${list_var}})
- if("${item}" STREQUAL "${value}")
- set(contains 1)
- break()
- endif("${item}" STREQUAL "${value}")
- endforeach(item)
- if(NOT contains)
- set(${list_var} ${${list_var}} "${value}" PARENT_SCOPE)
- endif(NOT contains)
- endfunction(gp_append_unique)
- # is_file_executable file result_var
- #
- # Return 1 in ${result_var} if ${file} is a binary executable.
- #
- # Return 0 in ${result_var} otherwise.
- #
- function(is_file_executable file result_var)
- #
- # A file is not executable until proven otherwise:
- #
- set(${result_var} 0 PARENT_SCOPE)
- get_filename_component(file_full "${file}" ABSOLUTE)
- string(TOLOWER "${file_full}" file_full_lower)
- # If file name ends in .exe on Windows, *assume* executable:
- #
- if(WIN32)
- if("${file_full_lower}" MATCHES "\.exe$")
- set(${result_var} 1 PARENT_SCOPE)
- return()
- endif("${file_full_lower}" MATCHES "\.exe$")
- # A clause could be added here that uses output or return value of dumpbin
- # to determine ${result_var}. In 99%+? practical cases, the exe name
- # match will be sufficient...
- #
- endif(WIN32)
- # Use the information returned from the Unix shell command "file" to
- # determine if ${file_full} should be considered an executable file...
- #
- # If the file command's output contains "executable" and does *not* contain
- # "text" then it is likely an executable suitable for prerequisite analysis
- # via the get_prerequisites macro.
- #
- if(UNIX)
- if(NOT file_cmd)
- find_program(file_cmd "file")
- endif(NOT file_cmd)
- if(file_cmd)
- execute_process(COMMAND "${file_cmd}" "${file_full}"
- OUTPUT_VARIABLE file_ov
- OUTPUT_STRIP_TRAILING_WHITESPACE
- )
- # Replace the name of the file in the output with a placeholder token
- # (the string " _file_full_ ") so that just in case the path name of
- # the file contains the word "text" or "executable" we are not fooled
- # into thinking "the wrong thing" because the file name matches the
- # other 'file' command output we are looking for...
- #
- string(REPLACE "${file_full}" " _file_full_ " file_ov "${file_ov}")
- string(TOLOWER "${file_ov}" file_ov)
- #message(STATUS "file_ov='${file_ov}'")
- if("${file_ov}" MATCHES "executable")
- #message(STATUS "executable!")
- if("${file_ov}" MATCHES "text")
- #message(STATUS "but text, so *not* a binary executable!")
- else("${file_ov}" MATCHES "text")
- set(${result_var} 1 PARENT_SCOPE)
- return()
- endif("${file_ov}" MATCHES "text")
- endif("${file_ov}" MATCHES "executable")
- else(file_cmd)
- message(STATUS "warning: No 'file' command, skipping execute_process...")
- endif(file_cmd)
- endif(UNIX)
- endfunction(is_file_executable)
- # gp_item_default_embedded_path item default_embedded_path_var
- #
- # Return the path that others should refer to the item by when the item
- # is embedded inside a bundle.
- #
- # Override on a per-project basis by providing a project-specific
- # gp_item_default_embedded_path_override function.
- #
- function(gp_item_default_embedded_path item default_embedded_path_var)
- # On Windows and Linux, "embed" prerequisites in the same directory
- # as the executable by default:
- #
- set(path "@executable_path")
- set(overridden 0)
- # On the Mac, relative to the executable depending on the type
- # of the thing we are embedding:
- #
- if(APPLE)
- #
- # The assumption here is that all executables in the bundle will be
- # in same-level-directories inside the bundle. The parent directory
- # of an executable inside the bundle should be MacOS or a sibling of
- # MacOS and all embedded paths returned from here will begin with
- # "@executable_path/../" and will work from all executables in all
- # such same-level-directories inside the bundle.
- #
- # By default, embed things right next to the main bundle executable:
- #
- set(path "@executable_path/../../Contents/MacOS")
- # Embed .dylibs right next to the main bundle executable:
- #
- if(item MATCHES "\.dylib$")
- set(path "@executable_path/../MacOS")
- set(overridden 1)
- endif(item MATCHES "\.dylib$")
- # Embed frameworks in the embedded "Frameworks" directory (sibling of MacOS):
- #
- if(NOT overridden)
- if(item MATCHES "[^/]+\.framework/")
- set(path "@executable_path/../Frameworks")
- set(overridden 1)
- endif(item MATCHES "[^/]+\.framework/")
- endif(NOT overridden)
- endif()
- # Provide a hook so that projects can override the default embedded location
- # of any given library by whatever logic they choose:
- #
- if(COMMAND gp_item_default_embedded_path_override)
- gp_item_default_embedded_path_override("${item}" path)
- endif(COMMAND gp_item_default_embedded_path_override)
- set(${default_embedded_path_var} "${path}" PARENT_SCOPE)
- endfunction(gp_item_default_embedded_path)
- # gp_resolve_item context item exepath dirs resolved_item_var
- #
- # Resolve an item into an existing full path file.
- #
- # Override on a per-project basis by providing a project-specific
- # gp_resolve_item_override function.
- #
- function(gp_resolve_item context item exepath dirs resolved_item_var)
- set(resolved 0)
- set(resolved_item "${item}")
- # Is it already resolved?
- #
- if(EXISTS "${resolved_item}")
- set(resolved 1)
- endif(EXISTS "${resolved_item}")
- if(NOT resolved)
- if(item MATCHES "@executable_path")
- #
- # @executable_path references are assumed relative to exepath
- #
- string(REPLACE "@executable_path" "${exepath}" ri "${item}")
- get_filename_component(ri "${ri}" ABSOLUTE)
- if(EXISTS "${ri}")
- #message(STATUS "info: embedded item exists (${ri})")
- set(resolved 1)
- set(resolved_item "${ri}")
- else(EXISTS "${ri}")
- message(STATUS "warning: embedded item does not exist '${ri}'")
- endif(EXISTS "${ri}")
- endif(item MATCHES "@executable_path")
- endif(NOT resolved)
- if(NOT resolved)
- if(item MATCHES "@loader_path")
- #
- # @loader_path references are assumed relative to the
- # PATH of the given "context" (presumably another library)
- #
- get_filename_component(contextpath "${context}" PATH)
- string(REPLACE "@loader_path" "${contextpath}" ri "${item}")
- get_filename_component(ri "${ri}" ABSOLUTE)
- if(EXISTS "${ri}")
- #message(STATUS "info: embedded item exists (${ri})")
- set(resolved 1)
- set(resolved_item "${ri}")
- else(EXISTS "${ri}")
- message(STATUS "warning: embedded item does not exist '${ri}'")
- endif(EXISTS "${ri}")
- endif(item MATCHES "@loader_path")
- endif(NOT resolved)
- if(NOT resolved)
- set(ri "ri-NOTFOUND")
- find_file(ri "${item}" ${exepath} ${dirs} NO_DEFAULT_PATH)
- find_file(ri "${item}" ${exepath} ${dirs} /usr/lib)
- if(ri)
- #message(STATUS "info: 'find_file' in exepath/dirs (${ri})")
- set(resolved 1)
- set(resolved_item "${ri}")
- set(ri "ri-NOTFOUND")
- endif(ri)
- endif(NOT resolved)
- if(NOT resolved)
- if(item MATCHES "[^/]+\.framework/")
- set(fw "fw-NOTFOUND")
- find_file(fw "${item}"
- "~/Library/Frameworks"
- "/Library/Frameworks"
- "/System/Library/Frameworks"
- )
- if(fw)
- #message(STATUS "info: 'find_file' found framework (${fw})")
- set(resolved 1)
- set(resolved_item "${fw}")
- set(fw "fw-NOTFOUND")
- endif(fw)
- endif(item MATCHES "[^/]+\.framework/")
- endif(NOT resolved)
- # Using find_program on Windows will find dll files that are in the PATH.
- # (Converting simple file names into full path names if found.)
- #
- if(WIN32)
- if(NOT resolved)
- set(ri "ri-NOTFOUND")
- find_program(ri "${item}" PATHS "${exepath};${dirs}" NO_DEFAULT_PATH)
- find_program(ri "${item}" PATHS "${exepath};${dirs}")
- if(ri)
- #message(STATUS "info: 'find_program' in exepath/dirs (${ri})")
- set(resolved 1)
- set(resolved_item "${ri}")
- set(ri "ri-NOTFOUND")
- endif(ri)
- endif(NOT resolved)
- endif(WIN32)
- # Provide a hook so that projects can override item resolution
- # by whatever logic they choose:
- #
- if(COMMAND gp_resolve_item_override)
- gp_resolve_item_override("${context}" "${item}" "${exepath}" "${dirs}" resolved_item resolved)
- endif(COMMAND gp_resolve_item_override)
- if(NOT resolved)
- message(STATUS "
- warning: cannot resolve item '${item}'
- possible problems:
- need more directories?
- need to use InstallRequiredSystemLibraries?
- run in install tree instead of build tree?
- ")
- # message(STATUS "
- #******************************************************************************
- #warning: cannot resolve item '${item}'
- #
- # possible problems:
- # need more directories?
- # need to use InstallRequiredSystemLibraries?
- # run in install tree instead of build tree?
- #
- # context='${context}'
- # item='${item}'
- # exepath='${exepath}'
- # dirs='${dirs}'
- # resolved_item_var='${resolved_item_var}'
- #******************************************************************************
- #")
- endif(NOT resolved)
- set(${resolved_item_var} "${resolved_item}" PARENT_SCOPE)
- endfunction(gp_resolve_item)
- # gp_resolved_file_type original_file file exepath dirs type_var
- #
- # Return the type of ${file} with respect to ${original_file}. String
- # describing type of prerequisite is returned in variable named ${type_var}.
- #
- # Use ${exepath} and ${dirs} if necessary to resolve non-absolute ${file}
- # values -- but only for non-embedded items.
- #
- # Possible types are:
- # system
- # local
- # embedded
- # other
- #
- function(gp_resolved_file_type original_file file exepath dirs type_var)
- #message(STATUS "**")
- if(NOT IS_ABSOLUTE "${original_file}")
- message(STATUS "warning: gp_resolved_file_type expects absolute full path for first arg original_file")
- endif()
- set(is_embedded 0)
- set(is_local 0)
- set(is_system 0)
- set(resolved_file "${file}")
- if("${file}" MATCHES "^@(executable|loader)_path")
- set(is_embedded 1)
- endif()
- if(NOT is_embedded)
- if(NOT IS_ABSOLUTE "${file}")
- gp_resolve_item("${original_file}" "${file}" "${exepath}" "${dirs}" resolved_file)
- endif()
- string(TOLOWER "${original_file}" original_lower)
- string(TOLOWER "${resolved_file}" lower)
- if(UNIX)
- if(resolved_file MATCHES "^(/lib/|/lib32/|/lib64/|/usr/lib/|/usr/lib32/|/usr/lib64/|/usr/X11R6/)")
- set(is_system 1)
- endif()
- endif()
- if(APPLE)
- if(resolved_file MATCHES "^(/System/Library/|/usr/lib/)")
- set(is_system 1)
- endif()
- endif()
- if(WIN32)
- string(TOLOWER "$ENV{SystemRoot}" sysroot)
- string(REGEX REPLACE "\\" "/" sysroot "${sysroot}")
- string(TOLOWER "$ENV{windir}" windir)
- string(REGEX REPLACE "\\" "/" windir "${windir}")
- if(lower MATCHES "^(${sysroot}/system|${windir}/system|${sysroot}/syswow|${windir}/syswow|(.*/)*msvc[^/]+dll)")
- set(is_system 1)
- endif()
- endif()
- if(NOT is_system)
- get_filename_component(original_path "${original_lower}" PATH)
- get_filename_component(path "${lower}" PATH)
- if("${original_path}" STREQUAL "${path}")
- set(is_local 1)
- endif()
- endif()
- endif()
- # Return type string based on computed booleans:
- #
- set(type "other")
- if(is_system)
- set(type "system")
- elseif(is_embedded)
- set(type "embedded")
- elseif(is_local)
- set(type "local")
- endif()
- #message(STATUS "gp_resolved_file_type: '${file}' '${resolved_file}'")
- #message(STATUS " type: '${type}'")
- if(NOT is_embedded)
- if(NOT IS_ABSOLUTE "${resolved_file}")
- if(lower MATCHES "^msvc[^/]+dll" AND is_system)
- message(STATUS "info: non-absolute msvc file '${file}' returning type '${type}'")
- else()
- message(STATUS "warning: gp_resolved_file_type non-absolute file '${file}' returning type '${type}' -- possibly incorrect")
- endif()
- endif()
- endif()
- set(${type_var} "${type}" PARENT_SCOPE)
- #message(STATUS "**")
- endfunction()
- # gp_file_type original_file file type_var
- #
- # Return the type of ${file} with respect to ${original_file}. String
- # describing type of prerequisite is returned in variable named ${type_var}.
- #
- # Possible types are:
- # system
- # local
- # embedded
- # other
- #
- function(gp_file_type original_file file type_var)
- if(NOT IS_ABSOLUTE "${original_file}")
- message(STATUS "warning: gp_file_type expects absolute full path for first arg original_file")
- endif()
- get_filename_component(exepath "${original_file}" PATH)
- set(type "")
- gp_resolved_file_type("${original_file}" "${file}" "${exepath}" "" type)
- set(${type_var} "${type}" PARENT_SCOPE)
- endfunction(gp_file_type)
- # get_prerequisites target prerequisites_var exclude_system recurse dirs
- #
- # Get the list of shared library files required by ${target}. The list in
- # the variable named ${prerequisites_var} should be empty on first entry to
- # this function. On exit, ${prerequisites_var} will contain the list of
- # required shared library files.
- #
- # target is the full path to an executable file
- #
- # prerequisites_var is the name of a CMake variable to contain the results
- #
- # exclude_system is 0 or 1: 0 to include "system" prerequisites , 1 to
- # exclude them
- #
- # recurse is 0 or 1: 0 for direct prerequisites only, 1 for all prerequisites
- # recursively
- #
- # exepath is the path to the top level executable used for @executable_path
- # replacment on the Mac
- #
- # dirs is a list of paths where libraries might be found: these paths are
- # searched first when a target without any path info is given. Then standard
- # system locations are also searched: PATH, Framework locations, /usr/lib...
- #
- function(get_prerequisites target prerequisites_var exclude_system recurse exepath dirs)
- set(verbose 0)
- set(eol_char "E")
- if(NOT IS_ABSOLUTE "${target}")
- message("warning: target '${target}' is not absolute...")
- endif(NOT IS_ABSOLUTE "${target}")
- if(NOT EXISTS "${target}")
- message("warning: target '${target}' does not exist...")
- endif(NOT EXISTS "${target}")
- # <setup-gp_tool-vars>
- #
- # Try to choose the right tool by default. Caller can set gp_tool prior to
- # calling this function to force using a different tool.
- #
- if("${gp_tool}" STREQUAL "")
- set(gp_tool "ldd")
- if(APPLE)
- set(gp_tool "otool")
- endif(APPLE)
- if(WIN32)
- set(gp_tool "dumpbin")
- endif(WIN32)
- endif("${gp_tool}" STREQUAL "")
- set(gp_tool_known 0)
- if("${gp_tool}" STREQUAL "ldd")
- set(gp_cmd_args "")
- set(gp_regex "^[t ]*[^t ]+ => ([^t ]+).*${eol_char}$")
- set(gp_regex_cmp_count 1)
- set(gp_tool_known 1)
- endif("${gp_tool}" STREQUAL "ldd")
- if("${gp_tool}" STREQUAL "otool")
- set(gp_cmd_args "-L")
- set(gp_regex "^t([^t]+) \(compatibility version ([0-9]+.[0-9]+.[0-9]+), current version ([0-9]+.[0-9]+.[0-9]+)\)${eol_char}$")
- set(gp_regex_cmp_count 3)
- set(gp_tool_known 1)
- endif("${gp_tool}" STREQUAL "otool")
- if("${gp_tool}" STREQUAL "dumpbin")
- set(gp_cmd_args "/dependents")
- set(gp_regex "^ ([^ ].*[Dd][Ll][Ll])${eol_char}$")
- set(gp_regex_cmp_count 1)
- set(gp_tool_known 1)
- set(ENV{VS_UNICODE_OUTPUT} "") # Block extra output from inside VS IDE.
- endif("${gp_tool}" STREQUAL "dumpbin")
- if(NOT gp_tool_known)
- message(STATUS "warning: gp_tool='${gp_tool}' is an unknown tool...")
- message(STATUS "CMake function get_prerequisites needs more code to handle '${gp_tool}'")
- message(STATUS "Valid gp_tool values are dumpbin, ldd and otool.")
- return()
- endif(NOT gp_tool_known)
- set(gp_cmd_paths ${gp_cmd_paths}
- "C:/Program Files/Microsoft Visual Studio 9.0/VC/bin"
- "C:/Program Files (x86)/Microsoft Visual Studio 9.0/VC/bin"
- "C:/Program Files/Microsoft Visual Studio 8/VC/BIN"
- "C:/Program Files (x86)/Microsoft Visual Studio 8/VC/BIN"
- "C:/Program Files/Microsoft Visual Studio .NET 2003/VC7/BIN"
- "C:/Program Files (x86)/Microsoft Visual Studio .NET 2003/VC7/BIN"
- "/usr/local/bin"
- "/usr/bin"
- )
- find_program(gp_cmd ${gp_tool} PATHS ${gp_cmd_paths})
- if(NOT gp_cmd)
- message(STATUS "warning: could not find '${gp_tool}' - cannot analyze prerequisites...")
- return()
- endif(NOT gp_cmd)
- if("${gp_tool}" STREQUAL "dumpbin")
- # When running dumpbin, it also needs the "Common7/IDE" directory in the
- # PATH. It will already be in the PATH if being run from a Visual Studio
- # command prompt. Add it to the PATH here in case we are running from a
- # different command prompt.
- #
- get_filename_component(gp_cmd_dir "${gp_cmd}" PATH)
- get_filename_component(gp_cmd_dlls_dir "${gp_cmd_dir}/../../Common7/IDE" ABSOLUTE)
- if(EXISTS "${gp_cmd_dlls_dir}")
- # only add to the path if it is not already in the path
- if(NOT "$ENV{PATH}" MATCHES "${gp_cmd_dlls_dir}")
- set(ENV{PATH} "$ENV{PATH};${gp_cmd_dlls_dir}")
- endif(NOT "$ENV{PATH}" MATCHES "${gp_cmd_dlls_dir}")
- endif(EXISTS "${gp_cmd_dlls_dir}")
- endif("${gp_tool}" STREQUAL "dumpbin")
- #
- # </setup-gp_tool-vars>
- if("${gp_tool}" STREQUAL "ldd")
- set(old_ld_env "$ENV{LD_LIBRARY_PATH}")
- foreach(dir ${exepath} ${dirs})
- set(ENV{LD_LIBRARY_PATH} "${dir}:$ENV{LD_LIBRARY_PATH}")
- endforeach(dir)
- endif("${gp_tool}" STREQUAL "ldd")
- # Track new prerequisites at each new level of recursion. Start with an
- # empty list at each level:
- #
- set(unseen_prereqs)
- # Run gp_cmd on the target:
- #
- execute_process(
- COMMAND ${gp_cmd} ${gp_cmd_args} ${target}
- OUTPUT_VARIABLE gp_cmd_ov
- )
- if("${gp_tool}" STREQUAL "ldd")
- set(ENV{LD_LIBRARY_PATH} "${old_ld_env}")
- endif("${gp_tool}" STREQUAL "ldd")
- if(verbose)
- message(STATUS "<RawOutput cmd='${gp_cmd} ${gp_cmd_args} ${target}'>")
- message(STATUS "gp_cmd_ov='${gp_cmd_ov}'")
- message(STATUS "</RawOutput>")
- endif(verbose)
- get_filename_component(target_dir "${target}" PATH)
- # Convert to a list of lines:
- #
- string(REGEX REPLACE ";" "\\;" candidates "${gp_cmd_ov}")
- string(REGEX REPLACE "n" "${eol_char};" candidates "${candidates}")
- # Analyze each line for file names that match the regular expression:
- #
- foreach(candidate ${candidates})
- if("${candidate}" MATCHES "${gp_regex}")
- # Extract information from each candidate:
- string(REGEX REPLACE "${gp_regex}" "\1" raw_item "${candidate}")
- if(gp_regex_cmp_count GREATER 1)
- string(REGEX REPLACE "${gp_regex}" "\2" raw_compat_version "${candidate}")
- string(REGEX REPLACE "^([0-9]+)\.([0-9]+)\.([0-9]+)$" "\1" compat_major_version "${raw_compat_version}")
- string(REGEX REPLACE "^([0-9]+)\.([0-9]+)\.([0-9]+)$" "\2" compat_minor_version "${raw_compat_version}")
- string(REGEX REPLACE "^([0-9]+)\.([0-9]+)\.([0-9]+)$" "\3" compat_patch_version "${raw_compat_version}")
- endif(gp_regex_cmp_count GREATER 1)
- if(gp_regex_cmp_count GREATER 2)
- string(REGEX REPLACE "${gp_regex}" "\3" raw_current_version "${candidate}")
- string(REGEX REPLACE "^([0-9]+)\.([0-9]+)\.([0-9]+)$" "\1" current_major_version "${raw_current_version}")
- string(REGEX REPLACE "^([0-9]+)\.([0-9]+)\.([0-9]+)$" "\2" current_minor_version "${raw_current_version}")
- string(REGEX REPLACE "^([0-9]+)\.([0-9]+)\.([0-9]+)$" "\3" current_patch_version "${raw_current_version}")
- endif(gp_regex_cmp_count GREATER 2)
- # Use the raw_item as the list entries returned by this function. Use the
- # gp_resolve_item function to resolve it to an actual full path file if
- # necessary.
- #
- set(item "${raw_item}")
- # Add each item unless it is excluded:
- #
- set(add_item 1)
- if(${exclude_system})
- set(type "")
- gp_resolved_file_type("${target}" "${item}" "${exepath}" "${dirs}" type)
- if("${type}" STREQUAL "system")
- set(add_item 0)
- endif("${type}" STREQUAL "system")
- endif(${exclude_system})
- if(add_item)
- list(LENGTH ${prerequisites_var} list_length_before_append)
- gp_append_unique(${prerequisites_var} "${item}")
- list(LENGTH ${prerequisites_var} list_length_after_append)
- if(${recurse})
- # If item was really added, this is the first time we have seen it.
- # Add it to unseen_prereqs so that we can recursively add *its*
- # prerequisites...
- #
- # But first: resolve its name to an absolute full path name such
- # that the analysis tools can simply accept it as input.
- #
- if(NOT list_length_before_append EQUAL list_length_after_append)
- gp_resolve_item("${target}" "${item}" "${exepath}" "${dirs}" resolved_item)
- set(unseen_prereqs ${unseen_prereqs} "${resolved_item}")
- endif(NOT list_length_before_append EQUAL list_length_after_append)
- endif(${recurse})
- endif(add_item)
- else("${candidate}" MATCHES "${gp_regex}")
- if(verbose)
- message(STATUS "ignoring non-matching line: '${candidate}'")
- endif(verbose)
- endif("${candidate}" MATCHES "${gp_regex}")
- endforeach(candidate)
- list(LENGTH ${prerequisites_var} prerequisites_var_length)
- if(prerequisites_var_length GREATER 0)
- list(SORT ${prerequisites_var})
- endif(prerequisites_var_length GREATER 0)
- if(${recurse})
- set(more_inputs ${unseen_prereqs})
- foreach(input ${more_inputs})
- get_prerequisites("${input}" ${prerequisites_var} ${exclude_system} ${recurse} "${exepath}" "${dirs}")
- endforeach(input)
- endif(${recurse})
- set(${prerequisites_var} ${${prerequisites_var}} PARENT_SCOPE)
- endfunction(get_prerequisites)
- # list_prerequisites target all exclude_system verbose
- #
- # ARGV0 (target) is the full path to an executable file
- #
- # optional ARGV1 (all) is 0 or 1: 0 for direct prerequisites only,
- # 1 for all prerequisites recursively
- #
- # optional ARGV2 (exclude_system) is 0 or 1: 0 to include "system"
- # prerequisites , 1 to exclude them
- #
- # optional ARGV3 (verbose) is 0 or 1: 0 to print only full path
- # names of prerequisites, 1 to print extra information
- #
- function(list_prerequisites target)
- if("${ARGV1}" STREQUAL "")
- set(all 1)
- else("${ARGV1}" STREQUAL "")
- set(all "${ARGV1}")
- endif("${ARGV1}" STREQUAL "")
- if("${ARGV2}" STREQUAL "")
- set(exclude_system 0)
- else("${ARGV2}" STREQUAL "")
- set(exclude_system "${ARGV2}")
- endif("${ARGV2}" STREQUAL "")
- if("${ARGV3}" STREQUAL "")
- set(verbose 0)
- else("${ARGV3}" STREQUAL "")
- set(verbose "${ARGV3}")
- endif("${ARGV3}" STREQUAL "")
- set(count 0)
- set(count_str "")
- set(print_count "${verbose}")
- set(print_prerequisite_type "${verbose}")
- set(print_target "${verbose}")
- set(type_str "")
- get_filename_component(exepath "${target}" PATH)
- set(prereqs "")
- get_prerequisites("${target}" prereqs ${exclude_system} ${all} "${exepath}" "")
- if(print_target)
- message(STATUS "File '${target}' depends on:")
- endif(print_target)
- foreach(d ${prereqs})
- math(EXPR count "${count} + 1")
- if(print_count)
- set(count_str "${count}. ")
- endif(print_count)
- if(print_prerequisite_type)
- gp_file_type("${target}" "${d}" type)
- set(type_str " (${type})")
- endif(print_prerequisite_type)
- message(STATUS "${count_str}${d}${type_str}")
- endforeach(d)
- endfunction(list_prerequisites)
- # list_prerequisites_by_glob glob_arg glob_exp
- #
- # glob_arg is GLOB or GLOB_RECURSE
- #
- # glob_exp is a globbing expression used with "file(GLOB" to retrieve a list
- # of matching files. If a matching file is executable, its prerequisites are
- # listed.
- #
- # Any additional (optional) arguments provided are passed along as the
- # optional arguments to the list_prerequisites calls.
- #
- function(list_prerequisites_by_glob glob_arg glob_exp)
- message(STATUS "=============================================================================")
- message(STATUS "List prerequisites of executables matching ${glob_arg} '${glob_exp}'")
- message(STATUS "")
- file(${glob_arg} file_list ${glob_exp})
- foreach(f ${file_list})
- is_file_executable("${f}" is_f_executable)
- if(is_f_executable)
- message(STATUS "=============================================================================")
- list_prerequisites("${f}" ${ARGN})
- message(STATUS "")
- endif(is_f_executable)
- endforeach(f)
- endfunction(list_prerequisites_by_glob)