summaryrefslogtreecommitdiff
path: root/Modules/FeatureSummary.cmake
blob: 41bce1e85ff63fd94daa1a99e23f07fe31b3ce1f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
# - Macros for generating a summary of enabled/disabled features
#
# This module provides the macros feature_summary(), set_package_properties() and
# add_feature_info().
# For compatibility it also still provides set_package_info(), set_feature_info(),
# print_enabled_features() and print_disabled_features().
#
# These macros can be used to generate a summary of enabled and disabled
# packages and/or feature for a build tree:
#
#    -- The following OPTIONAL packages have been found:
#    LibXml2 (required version >= 2.4) , XML processing library. , <http://xmlsoft.org>
#       * Enables HTML-import in MyWordProcessor
#       * Enables odt-export in MyWordProcessor
#    PNG , A PNG image library. , <http://www.libpng.org/pub/png/>
#       * Enables saving screenshots
#    -- The following OPTIONAL packages have not been found:
#    Lua51 , The Lua scripting language. , <http://www.lua.org>
#       * Enables macros in MyWordProcessor
#    Foo , Foo provides cool stuff.
#
#
#    FEATURE_SUMMARY( [FILENAME <file>]
#                     [APPEND]
#                     [VAR <variable_name>]
#                     [INCLUDE_QUIET_PACKAGES]
#                     [FATAL_ON_MISSING_REQUIRED_PACKAGES]
#                     [DESCRIPTION "Found packages:"]
#                     WHAT (ALL | PACKAGES_FOUND | PACKAGES_NOT_FOUND
#                          | ENABLED_FEATURES | DISABLED_FEATURES]
#                   )
#
# The FEATURE_SUMMARY() macro can be used to print information about enabled
# or disabled packages or features of a project.
# By default, only the names of the features/packages will be printed and their
# required version when one was specified. Use SET_PACKAGE_PROPERTIES() to add more
# useful information, like e.g. a download URL for the respective package or their
# purpose in the project.
#
# The WHAT option is the only mandatory option. Here you specify what information
# will be printed:
#    ALL: print everything
#    ENABLED_FEATURES: the list of all features which are enabled
#    DISABLED_FEATURES: the list of all features which are disabled
#    PACKAGES_FOUND: the list of all packages which have been found
#    PACKAGES_NOT_FOUND: the list of all packages which have not been found
#    OPTIONAL_PACKAGES_FOUND: only those packages which have been found which have the type OPTIONAL
#    OPTIONAL_PACKAGES_NOT_FOUND: only those packages which have not been found which have the type OPTIONAL
#    RECOMMENDED_PACKAGES_FOUND: only those packages which have been found which have the type RECOMMENDED
#    RECOMMENDED_PACKAGES_NOT_FOUND: only those packages which have not been found which have the type RECOMMENDED
#    REQUIRED_PACKAGES_FOUND: only those packages which have been found which have the type REQUIRED
#    REQUIRED_PACKAGES_NOT_FOUND: only those packages which have not been found which have the type REQUIRED
#    RUNTIME_PACKAGES_FOUND: only those packages which have been found which have the type RUNTIME
#    RUNTIME_PACKAGES_NOT_FOUND: only those packages which have not been found which have the type RUNTIME
#
# If a FILENAME is given, the information is printed into this file. If APPEND
# is used, it is appended to this file, otherwise the file is overwritten if
# it already existed.
# If the VAR option is used, the information is "printed" into the specified
# variable.
# If FILENAME is not used, the information is printed to the terminal.
# Using the DESCRIPTION option a description or headline can be set which will
# be printed above the actual content.
# If INCLUDE_QUIET_PACKAGES is given, packages which have been searched with find_package(... QUIET) will
# also be listed. By default they are skipped.
# If FATAL_ON_MISSING_REQUIRED_PACKAGES is given, CMake will abort if a package which is marked as REQUIRED
# has not been found.
#
# Example 1, append everything to a file:
#   feature_summary(WHAT ALL
#                   FILENAME ${CMAKE_BINARY_DIR}/all.log APPEND)
#
# Example 2, print the enabled features into the variable enabledFeaturesText, including QUIET packages:
#   feature_summary(WHAT ENABLED_FEATURES
#                   INCLUDE_QUIET_PACKAGES
#                   DESCRIPTION "Enabled Features:"
#                   VAR enabledFeaturesText)
#   message(STATUS "${enabledFeaturesText}")
#
#
#    SET_PACKAGE_PROPERTIES(<name> PROPERTIES [ URL <url> ]
#                                             [ DESCRIPTION <description> ]
#                                             [ TYPE (RUNTIME|OPTIONAL|RECOMMENDED|REQUIRED) ]
#                                             [ PURPOSE <purpose> ]
#                          )
#
# Use this macro to set up information about the named package, which can
# then be displayed via FEATURE_SUMMARY().
# This can be done either directly in the Find-module or in the project
# which uses the module after the find_package() call.
# The features for which information can be set are added automatically by the
# find_package() command.
#
# URL: this should be the homepage of the package, or something similar. Ideally this is set
# already directly in the Find-module.
#
# DESCRIPTION: A short description what that package is, at most one sentence.
# Ideally this is set already directly in the Find-module.
#
# TYPE: What type of dependency has the using project on that package. Default is OPTIONAL.
# In this case it is a package which can be used by the project when available at buildtime,
# but it also work without. RECOMMENDED is similar to OPTIONAL, i.e. the project will build
# if the package is not present, but the functionality of the resulting binaries will be severly
# limited. If a REQUIRED package is not available at buildtime, the project may not even build. This
# can be combined with the FATAL_ON_MISSING_REQUIRED_PACKAGES argument for feature_summary().
# Last, a RUNTIME package is a package which is actually not used at all during the build, but
# which is required for actually running the resulting binaries. So if such a package is missing,
# the project can still be built, but it may not work later on. If set_package_properties() is called
# multiple times for the same package with different TYPEs, the TYPE is only changed to higher
# TYPEs ( RUNTIME < OPTIONAL < RECOMMENDED < REQUIRED ), lower TYPEs are ignored.
# The TYPE property is project-specific, so it cannot be set by the Find-module, but must be set in the project.
#
# PURPOSE: This describes which features this package enables in the project, i.e. it tells the user
# what functionality he gets in the resulting binaries.
# If set_package_properties() is called multiple times for a package, all PURPOSE properties are appended
# to a list of purposes of the package in the project.
# As the TYPE property, also the PURPOSE property
# is project-specific, so it cannot be set by the Find-module, but must be set in the project.
#
#
# Example for setting the info for a package:
#   find_package(LibXml2)
#   set_package_properties(LibXml2 PROPERTIES DESCRIPTION "A XML processing library."
#                                             URL "http://xmlsoft.org/")
#
#   set_package_properties(LibXml2 PROPERTIES TYPE RECOMMENDED
#                                             PURPOSE "Enables HTML-import in MyWordProcessor")
#   ...
#   set_package_properties(LibXml2 PROPERTIES TYPE OPTIONAL
#                                             PURPOSE "Enables odt-export in MyWordProcessor")
#
#   find_package(DBUS)
#   set_package_properties(DBUS PROPERTIES TYPE RUNTIME
#                                             PURPOSE "Necessary to disable the screensaver during a presentation" )
#
#    ADD_FEATURE_INFO(<name> <enabled> <description>)
# Use this macro to add information about a feature with the given <name>.
# <enabled> contains whether this feature is enabled or not, <description>
# is a text describing the feature.
# The information can be displayed using feature_summary() for ENABLED_FEATURES
# and DISABLED_FEATURES respectively.
#
# Example for setting the info for a feature:
#   option(WITH_FOO "Help for foo" ON)
#   add_feature_info(Foo WITH_FOO "The Foo feature provides very cool stuff.")
#
#
# The following macros are provided for compatibility with previous CMake versions:
#
#    SET_PACKAGE_INFO(<name> <description> [<url> [<purpose>] ] )
# Use this macro to set up information about the named package, which can
# then be displayed via FEATURE_SUMMARY().
# This can be done either directly in the Find-module or in the project
# which uses the module after the find_package() call.
# The features for which information can be set are added automatically by the
# find_package() command.
#
#    PRINT_ENABLED_FEATURES()
# Does the same as FEATURE_SUMMARY(WHAT ENABLED_FEATURES  DESCRIPTION "Enabled features:")
#
#    PRINT_DISABLED_FEATURES()
# Does the same as FEATURE_SUMMARY(WHAT DISABLED_FEATURES  DESCRIPTION "Disabled features:")
#
#    SET_FEATURE_INFO(<name> <description> [<url>] )
# Does the same as SET_PACKAGE_INFO(<name> <description> <url> )

#=============================================================================
# Copyright 2007-2009 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 distribute this file outside of CMake, substitute the full
#  License text for the above reference.)

include(CMakeParseArguments)


function(ADD_FEATURE_INFO _name _enabled _desc)
  if (${_enabled})
    set_property(GLOBAL APPEND PROPERTY ENABLED_FEATURES "${_name}")
  else ()
    set_property(GLOBAL APPEND PROPERTY DISABLED_FEATURES "${_name}")
  endif ()

  set_property(GLOBAL PROPERTY _CMAKE_${_name}_DESCRIPTION "${_desc}" )
endfunction()



function(SET_PACKAGE_PROPERTIES _name _props)
  if(NOT "${_props}" STREQUAL "PROPERTIES")
    message(FATAL_ERROR "PROPERTIES keyword is missing in SET_PACKAGE_PROPERTIES() call.")
  endif()

  set(options ) # none
  set(oneValueArgs DESCRIPTION URL TYPE PURPOSE )
  set(multiValueArgs ) # none

  CMAKE_PARSE_ARGUMENTS(_SPP "${options}" "${oneValueArgs}" "${multiValueArgs}"  ${ARGN})

  if(_SPP_UNPARSED_ARGUMENTS)
    message(FATAL_ERROR "Unknown keywords given to SET_PACKAGE_PROPERTIES(): \"${_SPP_UNPARSED_ARGUMENTS}\"")
  endif()

  if(_SPP_DESCRIPTION)
    get_property(_info  GLOBAL PROPERTY _CMAKE_${_name}_DESCRIPTION)
    if(_info AND NOT "${_info}" STREQUAL "${_SPP_DESCRIPTION}")
      message(STATUS "Warning: Property DESCRIPTION for package ${_name} already set to \"${_info}\", overriding it with \"${_SPP_DESCRIPTION}\"")
    endif()

    set_property(GLOBAL PROPERTY _CMAKE_${_name}_DESCRIPTION "${_SPP_DESCRIPTION}" )
  endif()


  if(_SPP_URL)
    get_property(_info  GLOBAL PROPERTY _CMAKE_${_name}_URL)
    if(_info AND NOT "${_info}" STREQUAL "${_SPP_URL}")
      message(STATUS "Warning: Property URL already set to \"${_info}\", overriding it with \"${_SPP_URL}\"")
    endif()

    set_property(GLOBAL PROPERTY _CMAKE_${_name}_URL "${_SPP_URL}" )
  endif()


  # handle the PURPOSE: use APPEND, since there can be multiple purposes for one package inside a project
  if(_SPP_PURPOSE)
    set_property(GLOBAL APPEND PROPERTY _CMAKE_${_name}_PURPOSE "${_SPP_PURPOSE}" )
  endif()

  # handle the TYPE
  if(NOT _SPP_TYPE)
    set(_SPP_TYPE OPTIONAL)
  endif()

  # List the supported types, according to their priority
  set(validTypes "RUNTIME" "OPTIONAL" "RECOMMENDED" "REQUIRED" )
  list(FIND validTypes ${_SPP_TYPE} _typeIndexInList)
  if("${_typeIndexInList}" STREQUAL "-1" )
    message(FATAL_ERROR "Bad package property type ${_SPP_TYPE} used in SET_PACKAGE_PROPERTIES(). "
                        "Valid types are OPTIONAL, RECOMMENDED, REQUIRED and RUNTIME." )
  endif()

  get_property(_previousType  GLOBAL PROPERTY _CMAKE_${_name}_TYPE)
  list(FIND validTypes "${_previousType}" _prevTypeIndexInList)

  # make sure a previously set TYPE is not overridden with a lower new TYPE:
  if("${_typeIndexInList}" GREATER "${_prevTypeIndexInList}")
    set_property(GLOBAL PROPERTY _CMAKE_${_name}_TYPE "${_SPP_TYPE}" )
  endif()

endfunction()



function(_FS_GET_FEATURE_SUMMARY _property _var _includeQuiet)

  set(_type "ANY")
  if("${_property}" MATCHES "REQUIRED_")
    set(_type "REQUIRED")
  elseif("${_property}" MATCHES "RECOMMENDED_")
    set(_type "RECOMMENDED")
  elseif("${_property}" MATCHES "RUNTIME_")
    set(_type "RUNTIME")
  elseif("${_property}" MATCHES "OPTIONAL_")
    set(_type "OPTIONAL")
  endif()

  if("${_property}" MATCHES "PACKAGES_FOUND")
    set(_property "PACKAGES_FOUND")
  elseif("${_property}" MATCHES "PACKAGES_NOT_FOUND")
    set(_property "PACKAGES_NOT_FOUND")
  endif()


  set(_currentFeatureText "")
  get_property(_EnabledFeatures  GLOBAL PROPERTY ${_property})

  foreach(_currentFeature ${_EnabledFeatures})

    # does this package belong to the type we currently want to list ?
    get_property(_currentType  GLOBAL PROPERTY _CMAKE_${_currentFeature}_TYPE)
    if(NOT _currentType)
      set(_currentType OPTIONAL)
    endif()

    if("${_type}" STREQUAL ANY  OR  "${_type}" STREQUAL "${_currentType}")

      # check whether the current feature/package should be in the output depending on whether it was QUIET or not
      set(includeThisOne TRUE)
      # skip QUIET packages, except if they are REQUIRED or INCLUDE_QUIET_PACKAGES has been set
      if((NOT "${_currentType}" STREQUAL "REQUIRED") AND NOT _includeQuiet)
        get_property(_isQuiet  GLOBAL PROPERTY _CMAKE_${_currentFeature}_QUIET)
        if(_isQuiet)
          set(includeThisOne FALSE)
        endif()
      endif()

      if(includeThisOne)

        set(_currentFeatureText "${_currentFeatureText}\n * ${_currentFeature}")
        get_property(_info  GLOBAL PROPERTY _CMAKE_${_currentFeature}_REQUIRED_VERSION)
        if(_info)
          set(_currentFeatureText "${_currentFeatureText} (required version ${_info})")
        endif()
        get_property(_info  GLOBAL PROPERTY _CMAKE_${_currentFeature}_DESCRIPTION)
        if(_info)
          set(_currentFeatureText "${_currentFeatureText} , ${_info}")
        endif()
        get_property(_info  GLOBAL PROPERTY _CMAKE_${_currentFeature}_URL)
        if(_info)
          set(_currentFeatureText "${_currentFeatureText} , <${_info}>")
        endif()

        get_property(_info  GLOBAL PROPERTY _CMAKE_${_currentFeature}_PURPOSE)
        foreach(_purpose ${_info})
          set(_currentFeatureText "${_currentFeatureText}\n   ${_purpose}")
        endforeach()

      endif()

    endif()

  endforeach()
  set(${_var} "${_currentFeatureText}" PARENT_SCOPE)
endfunction()



function(FEATURE_SUMMARY)
# CMAKE_PARSE_ARGUMENTS(<prefix> <options> <one_value_keywords> <multi_value_keywords> args...)
  set(options APPEND INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES)
  set(oneValueArgs FILENAME VAR DESCRIPTION WHAT)
  set(multiValueArgs ) # none

  CMAKE_PARSE_ARGUMENTS(_FS "${options}" "${oneValueArgs}" "${multiValueArgs}"  ${_FIRST_ARG} ${ARGN})

  if(_FS_UNPARSED_ARGUMENTS)
    message(FATAL_ERROR "Unknown keywords given to FEATURE_SUMMARY(): \"${_FS_UNPARSED_ARGUMENTS}\"")
  endif()

  if(NOT _FS_WHAT)
    message(FATAL_ERROR "The call to FEATURE_SUMMARY() doesn't set the required WHAT argument.")
  endif()

  set(validWhatParts "ENABLED_FEATURES"
                     "DISABLED_FEATURES"
                     "PACKAGES_FOUND"
                     "PACKAGES_NOT_FOUND"
                     "OPTIONAL_PACKAGES_FOUND"
                     "OPTIONAL_PACKAGES_NOT_FOUND"
                     "RECOMMENDED_PACKAGES_FOUND"
                     "RECOMMENDED_PACKAGES_NOT_FOUND"
                     "REQUIRED_PACKAGES_FOUND"
                     "REQUIRED_PACKAGES_NOT_FOUND"
                     "RUNTIME_PACKAGES_FOUND"
                     "RUNTIME_PACKAGES_NOT_FOUND")

  list(FIND validWhatParts "${_FS_WHAT}" indexInList)
  if(NOT "${indexInList}" STREQUAL "-1")
    _FS_GET_FEATURE_SUMMARY( ${_FS_WHAT} _featureSummary ${_FS_INCLUDE_QUIET_PACKAGES} )
    set(_fullText "${_FS_DESCRIPTION}${_featureSummary}\n")
    if (("${_FS_WHAT}" STREQUAL "REQUIRED_PACKAGES_NOT_FOUND") AND _featureSummary)
      set(requiredPackagesNotFound TRUE)
    endif()

  elseif("${_FS_WHAT}" STREQUAL "ALL")

    set(allWhatParts "ENABLED_FEATURES"
                     "RUNTIME_PACKAGES_FOUND"
                     "OPTIONAL_PACKAGES_FOUND"
                     "RECOMMENDED_PACKAGES_FOUND"
                     "REQUIRED_PACKAGES_FOUND"

                     "DISABLED_FEATURES"
                     "RUNTIME_PACKAGES_NOT_FOUND"
                     "OPTIONAL_PACKAGES_NOT_FOUND"
                     "RECOMMENDED_PACKAGES_NOT_FOUND"
                     "REQUIRED_PACKAGES_NOT_FOUND"
       )

    set(title_ENABLED_FEATURES               "The following features have been enabled:")
    set(title_DISABLED_FEATURES              "The following features have been disabled:")
    set(title_OPTIONAL_PACKAGES_FOUND        "The following OPTIONAL packages have been found:")
    set(title_OPTIONAL_PACKAGES_NOT_FOUND    "The following OPTIONAL packages have not been found:")
    set(title_RECOMMENDED_PACKAGES_FOUND     "The following RECOMMENDED packages have been found:")
    set(title_RECOMMENDED_PACKAGES_NOT_FOUND "The following RECOMMENDED packages have not been found:")
    set(title_REQUIRED_PACKAGES_FOUND        "The following REQUIRED packages have been found:")
    set(title_REQUIRED_PACKAGES_NOT_FOUND    "The following REQUIRED packages have not been found:")
    set(title_RUNTIME_PACKAGES_FOUND         "The following RUNTIME packages have been found:")
    set(title_RUNTIME_PACKAGES_NOT_FOUND     "The following RUNTIME packages have not been found:")

    set(_fullText "${_FS_DESCRIPTION}")
    foreach(part ${allWhatParts})
      set(_tmp)
      _FS_GET_FEATURE_SUMMARY( ${part} _tmp ${_FS_INCLUDE_QUIET_PACKAGES})
      if(_tmp)
        set(_fullText "${_fullText}\n-- ${title_${part}}\n${_tmp}\n")
        if("${part}" STREQUAL "REQUIRED_PACKAGES_NOT_FOUND")
          set(requiredPackagesNotFound TRUE)
        endif()
      endif()
    endforeach()
  else()
    message(FATAL_ERROR "The WHAT argument of FEATURE_SUMMARY() is set to ${_FS_WHAT}, which is not a valid value.")
  endif()

  if(_FS_FILENAME)
    if(_FS_APPEND)
      file(APPEND "${_FS_FILENAME}" "${_fullText}")
    else()
      file(WRITE  "${_FS_FILENAME}" "${_fullText}")
    endif()

  else()
    if(NOT _FS_VAR)
      message(STATUS "${_fullText}")
    endif()
  endif()

  if(_FS_VAR)
    set(${_FS_VAR} "${_fullText}" PARENT_SCOPE)
  endif()

  if(requiredPackagesNotFound  AND  _FS_FATAL_ON_MISSING_REQUIRED_PACKAGES)
    message(FATAL_ERROR "feature_summary() Error: REQUIRED package(s) are missing, aborting CMake run.")
  endif()

endfunction()


# The stuff below is only kept for compatibility

function(SET_PACKAGE_INFO _name _desc)
  set(_url "${ARGV2}")
  set(_purpose "${ARGV3}")
  set_property(GLOBAL PROPERTY _CMAKE_${_name}_DESCRIPTION "${_desc}" )
  if(_url MATCHES ".+")
    set_property(GLOBAL PROPERTY _CMAKE_${_name}_URL "${_url}" )
  endif()
  if(_purpose MATCHES ".+")
    set_property(GLOBAL APPEND PROPERTY _CMAKE_${_name}_PURPOSE "${_purpose}" )
  endif()
endfunction()



function(SET_FEATURE_INFO)
  SET_PACKAGE_INFO(${ARGN})
endfunction()



function(PRINT_ENABLED_FEATURES)
  FEATURE_SUMMARY(WHAT ENABLED_FEATURES  DESCRIPTION "Enabled features:")
endfunction()



function(PRINT_DISABLED_FEATURES)
  FEATURE_SUMMARY(WHAT DISABLED_FEATURES  DESCRIPTION "Disabled features:")
endfunction()