PBC setup for GPU is moved into pbcutils.
[alexxy/gromacs.git] / docs / CMakeLists.txt
1 #
2 # This file is part of the GROMACS molecular simulation package.
3 #
4 # Copyright (c) 2014,2015,2016,2017,2018,2019, by the GROMACS development team, led by
5 # Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
6 # and including many others, as listed in the AUTHORS file in the
7 # top-level source directory and at http://www.gromacs.org.
8 #
9 # GROMACS is free software; you can redistribute it and/or
10 # modify it under the terms of the GNU Lesser General Public License
11 # as published by the Free Software Foundation; either version 2.1
12 # of the License, or (at your option) any later version.
13 #
14 # GROMACS is distributed in the hope that it will be useful,
15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17 # Lesser General Public License for more details.
18 #
19 # You should have received a copy of the GNU Lesser General Public
20 # License along with GROMACS; if not, see
21 # http://www.gnu.org/licenses, or write to the Free Software Foundation,
22 # Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA.
23 #
24 # If you want to redistribute modifications to GROMACS, please
25 # consider that scientific software is very special. Version
26 # control is crucial - bugs must be traceable. We will be happy to
27 # consider code for inclusion in the official distribution, but
28 # derived work must not be called official GROMACS. Details are found
29 # in the README & COPYING files - if they are missing, get the
30 # official version at http://www.gromacs.org.
31 #
32 # To help us fund GROMACS development, we humbly ask that you cite
33 # the research papers on the package. Check out http://www.gromacs.org.
34
35 # This directory provides a unified place for building all kinds of
36 # GROMACS documentation. This includes some "static" content (Doxygen
37 # code documentation, reference manual, install guide, old online HTML
38 # images), and content generated from the gmx program for the various
39 # tools (man and HTML pages). It also provides the "webpage" target,
40 # that combines all of the above (except man pages in man format) into
41 # a form suitable for automated deployment to the GROMACS website. It
42 # also provides the INSTALL file for the tarball.
43 #
44 # The webpage is mostly built by Sphinx.  Variable values for Sphinx
45 # substitutions are configured by CMake (for things like version numbers),
46 # using gmx_configure_version_file().  This happens during build time instead
47 # of configure time, because 1) some of the version variables are only
48 # available during build time, and 2) we don't want to do all the Sphinx setup
49 # during configuration to save some time when not building the content.
50 # All the generated values get put into conf-vars.py (generated from
51 # conf-vars.py.cmakein), which in turn is included by the Sphinx configuration
52 # file conf.py.
53
54 set(SOURCE_MD5SUM "unknown" CACHE STRING
55     "MD5 sum of the source tarball, normally used only for the pre-release webpage build")
56 # REGRESSIONTEST_MD5SUM is set in cmake/gmxVersionInfo.cmake because it is used also in tests/CMakeLists.txt
57 mark_as_advanced(SOURCE_MD5SUM)
58
59 set(EXPECTED_DOXYGEN_VERSION 1.8.5)
60
61 set(EXPECTED_SPHINX_VERSION 1.6.1)
62
63 if (DEFINED PYTHON_EXECUTABLE)
64     # Keep quiet on subsequent runs of cmake
65     set(PythonInterp_FIND_QUIETLY ON)
66 endif()
67 find_package(PythonInterp 2.7)
68
69
70 if (NOT ${PYTHON_VERSION_MAJOR} EQUAL 3)
71     find_package(Sphinx ${EXPECTED_SPHINX_VERSION} QUIET COMPONENTS pygments)
72 else()
73     MESSAGE(STATUS "Can not build documentation with Python 3")
74 endif()
75
76 # Even if we aren't going to make the full webpage, set up to put all
77 # the documentation output in the same place, for convenience
78 set(HTML_OUTPUT_DIR "${CMAKE_CURRENT_BINARY_DIR}/html")
79 file(MAKE_DIRECTORY ${HTML_OUTPUT_DIR})
80
81 # Prepare directories for pdf/tex output
82 set(TEX_OUTPUT_DIR "${CMAKE_CURRENT_BINARY_DIR}/manual")
83 set(SPHINX_LATEX_FILE "${TEX_OUTPUT_DIR}/gromacs.tex")
84 file(MAKE_DIRECTORY ${TEX_OUTPUT_DIR})
85
86 # The directory from which man pages will be installed; if it remains
87 # empty, they will be silently skipped.
88 set(MAN_PAGE_DIR)
89 if (SOURCE_IS_SOURCE_DISTRIBUTION)
90     # When building from the tarball, install the bundled man pages
91     # (unless overridden).
92     set(MAN_PAGE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
93 endif()
94
95 add_subdirectory(doxygen)
96
97 # TODO: Consider whether this could just be replaced by using
98 # GMX_DEVELOPER_BUILD to control this as well.
99 option(GMX_BUILD_MANUAL "Whether to try to configure to build the PDF manual" OFF)
100 mark_as_advanced(GMX_BUILD_MANUAL)
101
102 set(MANUAL_BUILD_IS_POSSIBLE ON)
103 set(MANUAL_BUILD_NOT_POSSIBLE_REASON)
104 set(NO_IMAGE_CONVERT_REASON)
105 if (NOT GMX_BUILD_MANUAL)
106     # Make sure we only do detection of manual-building dependencies
107     # when the user opted in for that.
108     set(MANUAL_BUILD_IS_POSSIBLE OFF)
109     set(MANUAL_BUILD_NOT_POSSIBLE_REASON "GMX_BUILD_MANUAL is not ON")
110 elseif (BUILD_IS_INSOURCE)
111     # UseLATEX.cmake does not work with an in-source build
112     set(MANUAL_BUILD_IS_POSSIBLE OFF)
113     set(MANUAL_BUILD_NOT_POSSIBLE_REASON "the build is in-source")
114 else()
115     include(manual/UseLATEX.cmake)
116     if(${PYTHON_VERSION_MAJOR} EQUAL 3)
117         set(MANUAL_BUILD_IS_POSSIBLE OFF)
118         set(MANUAL_BUILD_NOT_POSSIBLE_REASON "We can not build the documentation when using python3")
119     elseif(NOT SPHINX_FOUND)
120         set(MANUAL_BUILD_IS_POSSIBLE OFF)
121         set(MANUAL_BUILD_NOT_POSSIBLE_REASON "Sphinx has not been found and is needed to create the LaTex input files")
122     elseif(NOT PDFLATEX_COMPILER)
123         set(MANUAL_BUILD_IS_POSSIBLE OFF)
124         set(MANUAL_BUILD_NOT_POSSIBLE_REASON "pdflatex is not available")
125     elseif(NOT IMAGE_CONVERT_POSSIBLE)
126         set(MANUAL_BUILD_IS_POSSIBLE OFF)
127         set(MANUAL_BUILD_NOT_POSSIBLE_REASON "a working form of ImageMagick convert is not available")
128         set(NO_IMAGE_CONVERT_REASON "Can not convert files for online or pdf manual")
129         # TODO Later, identify other dependencies like bibtex,
130         # make_index, date, some graphics conversion program,
131         # etc. Perhaps patch UseLATEX.cmake and contribute upstream.
132     endif()
133
134 endif()
135
136 if (SPHINX_FOUND)
137     # We need to have all the Sphinx input files in a single directory, and
138     # since some of them are generated, we copy everything into the build tree,
139     # to this directory.
140     set(SPHINX_INPUT_DIR ${CMAKE_CURRENT_BINARY_DIR}/sphinx-input)
141     set(SPHINX_EXTENSION_PATH ${CMAKE_CURRENT_SOURCE_DIR})
142     # As the manual build now depends also on Sphinx, the inclusion path needs
143     # to be set after we know the basic information for Sphinx.
144     add_subdirectory(manual)
145     if (SOURCE_MD5SUM STREQUAL "unknown")
146         # But for testing the webpage build (e.g. from the repo) we
147         # need a default value.
148         set(REGRESSIONTEST_MD5SUM_STRING "unknown")
149     else()
150         # The real build of the webpage happens from the tarball, and
151         # this should be set to the matching MD5 sum.
152         set(REGRESSIONTEST_MD5SUM_STRING "${REGRESSIONTEST_MD5SUM}")
153     endif()
154     # The reference manual still contains the individual sections from the
155     # LaTeX document, with the files below grouped and annotated by chapter.
156     set(REFERENCEMANUAL_SPHINX_FILES_GENERAL
157         # Main index file, preface and introduction.
158         reference-manual/index.rst
159         reference-manual/preface.rst
160         reference-manual/introduction.rst
161         # Definitions and Units chapter
162         reference-manual/definitions.rst
163         # Topologies chapter
164         reference-manual/topologies.rst
165         reference-manual/topologies/particle-type.rst
166         reference-manual/topologies/parameter-files.rst
167         reference-manual/topologies/molecule-definition.rst
168         reference-manual/topologies/constraint-algorithm-section.rst
169         reference-manual/topologies/pdb2gmx-input-files.rst
170         reference-manual/topologies/topology-file-formats.rst
171         reference-manual/topologies/force-field-organization.rst
172         # File formats chapter
173         reference-manual/file-formats.rst
174         # Run parameters and programs chapter
175         reference-manual/run-parameters.rst
176         # Implementation details chapter
177         reference-manual/details.rst
178         # Averages and fluctations chapter
179         reference-manual/averages.rst
180         # References
181         reference-manual/references.rst
182         # PNG formated plot files that don't need to be converted into PNG
183         # for the web page.
184         reference-manual/plots/peregrine.png
185         reference-manual/plots/adress.png
186         reference-manual/plots/plotje.png
187         reference-manual/plots/xvgr.png
188         )
189     set(REFERENCEMANUAL_SPHINX_FILES_WITH_IMAGES
190         # Algorithms chapter
191         reference-manual/algorithms.rst
192         reference-manual/algorithms/periodic-boundary-conditions.rst
193         reference-manual/algorithms/group-concept.rst
194         reference-manual/algorithms/molecular-dynamics.rst
195         reference-manual/algorithms/shell-molecular-dynamics.rst
196         reference-manual/algorithms/constraint-algorithms.rst
197         reference-manual/algorithms/simulated-annealing.rst
198         reference-manual/algorithms/stochastic-dynamics.rst
199         reference-manual/algorithms/brownian-dynamics.rst
200         reference-manual/algorithms/energy-minimization.rst
201         reference-manual/algorithms/normal-mode-analysis.rst
202         reference-manual/algorithms/free-energy-calculations.rst
203         reference-manual/algorithms/replica-exchange.rst
204         reference-manual/algorithms/essential-dynamics.rst
205         reference-manual/algorithms/expanded-ensemble.rst
206         reference-manual/algorithms/parallelization-domain-decomp.rst
207         # Interaction functions and force fields chapter
208         reference-manual/functions.rst
209         reference-manual/functions/bonded-interactions.rst
210         reference-manual/functions/force-field.rst
211         reference-manual/functions/free-energy-interactions.rst
212         reference-manual/functions/interaction-methods.rst
213         reference-manual/functions/long-range-electrostatics.rst
214         reference-manual/functions/long-range-vdw.rst
215         reference-manual/functions/nonbonded-interactions.rst
216         reference-manual/functions/polarization.rst
217         reference-manual/functions/restraints.rst
218         # Special topics chapter
219         reference-manual/special.rst
220         reference-manual/special/free-energy-implementation.rst
221         reference-manual/special/pulling.rst
222         reference-manual/special/awh.rst
223         reference-manual/special/enforced-rotation.rst
224         reference-manual/special/electric-fields.rst
225         reference-manual/special/comp-electrophys.rst
226         reference-manual/special/free-energy-pmf.rst
227         reference-manual/special/remove-fast-dgf.rst
228         reference-manual/special/viscosity-calculation.rst
229         reference-manual/special/tabulated-interaction-functions.rst
230         reference-manual/special/qmmm.rst
231         reference-manual/special/vmd-imd.rst
232         reference-manual/special/membrane-embedding.rst
233         reference-manual/special/mimic-qmmm.rst
234         # Analysis chapter
235         reference-manual/analysis.rst
236         reference-manual/analysis/using-groups.rst
237         reference-manual/analysis/looking-at-trajectory.rst
238         reference-manual/analysis/general-properties.rst
239         reference-manual/analysis/radial-distribution-function.rst
240         reference-manual/analysis/correlation-function.rst
241         reference-manual/analysis/curve-fitting.rst
242         reference-manual/analysis/mean-square-displacement.rst
243         reference-manual/analysis/bond-angle-dihedral.rst
244         reference-manual/analysis/radius-of-gyration.rst
245         reference-manual/analysis/rmsd.rst
246         reference-manual/analysis/covariance-analysis.rst
247         reference-manual/analysis/dihedral-pca.rst
248         reference-manual/analysis/hydrogen-bonds.rst
249         reference-manual/analysis/protein-related.rst
250         reference-manual/analysis/interface-related.rst)
251     # The image files have also been ordered by the respective
252     # chapter they are included in in the reference manual
253     set(REFERENCEMANUAL_IMAGE_FILES
254         # General folder
255         reference-manual/plots/decomp.pdf
256         reference-manual/plots/dih.pdf
257         reference-manual/plots/drift-all.pdf
258         reference-manual/plots/f-angle.pdf
259         reference-manual/plots/f-bond.pdf
260         reference-manual/plots/fp-highres.pdf
261         reference-manual/plots/int-mat.pdf
262         reference-manual/plots/mdpar.pdf
263         reference-manual/plots/parsort.pdf
264         reference-manual/plots/ring.pdf
265         reference-manual/plots/shiftf.pdf
266         # Algorithms chapter
267         reference-manual/algorithms/plots/dd-cells.pdf
268         reference-manual/algorithms/plots/dd-tric.pdf
269         reference-manual/algorithms/plots/flowchart.pdf
270         reference-manual/algorithms/plots/free1.pdf
271         reference-manual/algorithms/plots/free2.pdf
272         reference-manual/algorithms/plots/leapfrog.pdf
273         reference-manual/algorithms/plots/lincs.pdf
274         reference-manual/algorithms/plots/maxwell.pdf
275         reference-manual/algorithms/plots/mpmd-pme.pdf
276         reference-manual/algorithms/plots/nstric.pdf
277         reference-manual/algorithms/plots/par-lincs2.pdf
278         reference-manual/algorithms/plots/pbctric.pdf
279         reference-manual/algorithms/plots/rhododec.pdf
280         reference-manual/algorithms/plots/truncoct.pdf
281         reference-manual/algorithms/plots/verlet-drift.pdf
282         # Interaction functions chapter
283         reference-manual/functions/plots/angle.pdf
284         reference-manual/functions/plots/bstretch.pdf
285         reference-manual/functions/plots/chain.pdf
286         reference-manual/functions/plots/dummies.pdf
287         reference-manual/functions/plots/f-bham.pdf
288         reference-manual/functions/plots/fbposres.pdf
289         reference-manual/functions/plots/f-dih.pdf
290         reference-manual/functions/plots/f-dr.pdf
291         reference-manual/functions/plots/fig-02.pdf
292         reference-manual/functions/plots/fig-04.pdf
293         reference-manual/functions/plots/f-imps.pdf
294         reference-manual/functions/plots/f-lj.pdf
295         reference-manual/functions/plots/f-morse.pdf
296         reference-manual/functions/plots/f-pr.pdf
297         reference-manual/functions/plots/f-rbs.pdf
298         reference-manual/functions/plots/ring-imp.pdf
299         reference-manual/functions/plots/softcore.pdf
300         reference-manual/functions/plots/subst-im.pdf
301         reference-manual/functions/plots/tetra-im.pdf
302         reference-manual/functions/plots/vcrf.pdf
303         reference-manual/functions/plots/vsite-4fdn.pdf
304         # Special topics chapter
305         reference-manual/special/plots/awh-invN.pdf
306         reference-manual/special/plots/awh-pmfs.pdf
307         reference-manual/special/plots/awh-sampleweights.pdf
308         reference-manual/special/plots/awh-traj.pdf
309         reference-manual/special/plots/compelsetup.pdf
310         reference-manual/special/plots/dumaro.pdf
311         reference-manual/special/plots/dumtypes.pdf
312         reference-manual/special/plots/equipotential.pdf
313         reference-manual/special/plots/field.pdf
314         reference-manual/special/plots/gaussians.pdf
315         reference-manual/special/plots/pulldirrel.pdf
316         reference-manual/special/plots/pull.pdf
317         reference-manual/special/plots/pullref.pdf
318         reference-manual/special/plots/rotation.pdf
319         # Analysis chapter
320         reference-manual/analysis/plots/dih-def.pdf
321         reference-manual/analysis/plots/distm.pdf
322         reference-manual/analysis/plots/dssp.pdf
323         reference-manual/analysis/plots/hbond-insert.pdf
324         reference-manual/analysis/plots/hbond.pdf
325         reference-manual/analysis/plots/hpr-wheel.pdf
326         reference-manual/analysis/plots/msdwater.pdf
327         reference-manual/analysis/plots/ngmxdump.pdf
328         reference-manual/analysis/plots/phipsi.pdf
329         reference-manual/analysis/plots/rama.pdf
330         reference-manual/analysis/plots/rdfO-O.pdf
331         reference-manual/analysis/plots/rdf.pdf
332         reference-manual/analysis/plots/sgangle.pdf 
333         )
334     set(SPHINX_SOURCE_FILES
335         index.rst
336         download.rst
337         conf.py
338         links.dat
339         dev-manual/build-system.rst
340         dev-manual/change-management.rst
341         dev-manual/commitstyle.rst
342         dev-manual/documentation-generation.rst
343         dev-manual/contribute.rst
344         dev-manual/doxygen.rst
345         dev-manual/error-handling.rst
346         dev-manual/formatting.rst
347         dev-manual/gmxtree.rst
348         dev-manual/includestyle.rst
349         dev-manual/index.rst
350         dev-manual/jenkins.rst
351         dev-manual/known-issues.rst
352         dev-manual/language-features.rst
353         dev-manual/naming.rst
354         dev-manual/overview.rst
355         dev-manual/physical_validation.rst
356         dev-manual/redmine-states.png
357         dev-manual/relocatable-binaries.rst
358         dev-manual/reportstyle.rst
359         dev-manual/style.rst
360         dev-manual/testutils.rst
361         dev-manual/tools.rst
362         dev-manual/uncrustify.rst
363         fragments/doxygen-links.rst
364         how-to/index.rst
365         how-to/beginners.rst
366         how-to/topology.rst
367         how-to/special.rst
368         how-to/visualize.rst
369         install-guide/index.rst
370         release-notes/index.rst
371         release-notes/highlights.rst
372         release-notes/features.rst
373         release-notes/performance.rst
374         release-notes/tools.rst
375         release-notes/bugs-fixed.rst
376         release-notes/removed-functionality.rst
377         release-notes/deprecated-functionality.rst
378         release-notes/portability.rst
379         release-notes/miscellaneous.rst
380         release-notes/2019/2019.1.rst
381         release-notes/2019/major/highlights.rst
382         release-notes/2019/major/features.rst
383         release-notes/2019/major/performance.rst
384         release-notes/2019/major/tools.rst
385         release-notes/2019/major/bugs-fixed.rst
386         release-notes/2019/major/removed-functionality.rst
387         release-notes/2019/major/deprecated-functionality.rst
388         release-notes/2019/major/portability.rst
389         release-notes/2019/major/miscellaneous.rst
390         release-notes/2018/2018.6.rst
391         release-notes/2018/2018.5.rst
392         release-notes/2018/2018.4.rst
393         release-notes/2018/2018.3.rst
394         release-notes/2018/2018.2.rst
395         release-notes/2018/2018.1.rst
396         release-notes/2018/major/highlights.rst
397         release-notes/2018/major/features.rst
398         release-notes/2018/major/performance.rst
399         release-notes/2018/major/tools.rst
400         release-notes/2018/major/bugs-fixed.rst
401         release-notes/2018/major/removed-features.rst
402         release-notes/2018/major/portability.rst
403         release-notes/2018/major/miscellaneous.rst
404         release-notes/2016/2016.5.rst
405         release-notes/2016/2016.4.rst
406         release-notes/2016/2016.3.rst
407         release-notes/2016/2016.2.rst
408         release-notes/2016/2016.1.rst
409         release-notes/2016/major/highlights.rst
410         release-notes/2016/major/new-features.rst
411         release-notes/2016/major/performance.rst
412         release-notes/2016/major/tools.rst
413         release-notes/2016/major/bugs-fixed.rst
414         release-notes/2016/major/removed-features.rst
415         release-notes/2016/major/miscellaneous.rst
416         release-notes/older/index.rst
417         # the entry for user-guide/index.rst should not appear here,
418         # as it will be included conditionally further down depending on
419         # if the documentation will be build with the full reference
420         # manual or without.
421         user-guide/cmdline.rst
422         user-guide/cutoff-schemes.rst
423         user-guide/deprecation-policy.rst
424         user-guide/environment-variables.rst
425         user-guide/faq.rst
426         user-guide/floating-point.rst
427         user-guide/flow.rst
428         user-guide/force-fields.rst
429         user-guide/getting-started.rst
430         user-guide/index.rst
431         user-guide/managing-simulations.rst
432         user-guide/mdp-options.rst
433         user-guide/mdrun-features.rst
434         user-guide/mdrun-performance.rst
435         user-guide/run-time-errors.rst
436         user-guide/security.rst
437         user-guide/system-preparation.rst
438         user-guide/terminology.rst
439         )
440
441     include(SphinxMacros.cmake)
442     gmx_init_sphinx_setup(${SPHINX_INPUT_DIR})
443
444     # set temporary variables for doi inclusion
445     # into the manual, plain string + some wrapping
446     # for release builds, and dummy string for non-release
447     # builds
448     if("${GMX_MANUAL_DOI}" STREQUAL "")
449       # empty string means no doi, set dummy text
450       set(GMX_MANUAL_DOI_STRING "This is not a release build of GROMACS, so please reference")
451       set(GMX_MANUAL_DOI_STRING "${GMX_MANUAL_DOI_STRING} one of the GROMACS papers and the base release of the manual.")
452     else()
453       # release version, set plain old boring string
454       set(GMX_MANUAL_DOI_STRING "Please reference this documentation as https://doi.org/${GMX_MANUAL_DOI}.")
455     endif()
456     # same for source doi, but modify the text
457     if("${GMX_SOURCE_DOI}" STREQUAL "")
458       # empty string means no release build
459       set(GMX_SOURCE_DOI_STRING "This is not a release build of GROMACS. Please reference one of the")
460       set(GMX_SOURCE_DOI_STRING "${GMX_SOURCE_DOI_STRING} GROMACS papers, as well as the base release that this version is built from.")
461       set(GMX_SOURCE_DOI_STRING "${GMX_SOURCE_DOI_STRING} Also, please state what modifcations have been performed or where the version")
462       set(GMX_SOURCE_DOI_STRING "${GMX_SOURCE_DOI_STRING} was sourced from.")
463     else()
464       # release version, give them a doi url string
465       set(GMX_SOURCE_DOI_STRING "To cite the source code for this release, please cite")
466       set(GMX_SOURCE_DOI_STRING "${GMX_SOURCE_DOI_STRING} https://doi.org/${GMX_SOURCE_DOI}.")
467     endif()
468
469     if(IMAGE_CONVERT_POSSIBLE)
470         set(IMAGE_CONVERT_STRING "possible")
471     else()
472         set(IMAGE_CONVERT_STRING "impossible")
473     endif()
474
475     set(SPHINX_CONFIG_VARS_FILE ${SPHINX_INPUT_DIR}/conf-vars.py)
476     gmx_configure_version_file(conf-vars.py.cmakein ${SPHINX_CONFIG_VARS_FILE}
477         EXTRA_VARS
478             SPHINX_EXTENSION_PATH RELENG_PATH
479             IMAGE_CONVERT_STRING
480             EXPECTED_DOXYGEN_VERSION
481             EXPECTED_SPHINX_VERSION
482             CMAKE_MINIMUM_REQUIRED_VERSION REQUIRED_CUDA_VERSION
483             REQUIRED_OPENCL_MIN_VERSION
484             REQUIRED_CUDA_COMPUTE_CAPABILITY REGRESSIONTEST_VERSION
485             SOURCE_MD5SUM REGRESSIONTEST_MD5SUM_STRING
486             GMX_TNG_MINIMUM_REQUIRED_VERSION
487             GMX_LMFIT_REQUIRED_VERSION
488             GMX_MANUAL_DOI_STRING
489             GMX_SOURCE_DOI_STRING
490         COMMENT "Configuring Sphinx configuration file")
491     gmx_add_sphinx_input_file(${SPHINX_CONFIG_VARS_FILE})
492     gmx_add_sphinx_source_files(FILES ${SPHINX_SOURCE_FILES})
493     if (EXISTS ${RELENG_PATH}/docs/FileList.cmake)
494         include(${RELENG_PATH}/docs/FileList.cmake)
495         gmx_add_sphinx_source_files(
496             FROM ${RELENG_PATH}/docs TO dev-manual/releng PREFIX releng/docs/
497             FILES ${RELENG_SPHINX_FILES})
498     else()
499         gmx_add_sphinx_source_files(FILES
500             dev-manual/releng/index.rst
501             dev-manual/releng/jenkins-howto.rst
502             dev-manual/releng/jenkins-ui.rst
503             )
504     endif()
505     gmx_add_sphinx_source_files(
506         FILES
507         ${REFERENCEMANUAL_SPHINX_FILES_GENERAL})
508     if (IMAGE_CONVERT_POSSIBLE)
509         gmx_add_sphinx_source_files(
510             FILES
511             ${REFERENCEMANUAL_SPHINX_FILES_WITH_IMAGES}
512             ${REFERENCEMANUAL_IMAGE_FILES})
513         gmx_add_sphinx_image_conversion_files(
514             FILES
515             ${REFERENCEMANUAL_IMAGE_FILES})
516     endif()
517     gmx_add_sphinx_input_target(sphinx-input-rst)
518     gmx_add_sphinx_image_conversion_target(sphinx-image-conversion)
519     add_custom_target(sphinx-input)
520     add_dependencies(sphinx-input sphinx-input-rst sphinx-image-conversion)
521     # Remove other rst files from the build tree, since they confuse Sphinx.
522     # Skip generated files in onlinehelp/, and fragments.
523     # The latter do not cause issues with obsolete files, as they
524     # are not considered as Sphinx input files, but will only be
525     # included using an explicit .. include::.
526     gmx_remove_obsolete_sphinx_input_files("^(onlinehelp|fragments)/.*\\\\.rst$")
527
528     # TODO: Make this remove obsolete .rst files.
529     # TODO: This does not work in cross-compilation scenarios; disable up to
530     # the necessary level.
531     gmx_add_custom_output_target(sphinx-programs OUTPUT STAMP
532         COMMAND ${CMAKE_COMMAND} -E make_directory onlinehelp
533         COMMAND gmx -quiet help -export rst
534         DEPENDS gmx
535         WORKING_DIRECTORY ${SPHINX_INPUT_DIR}
536         COMMENT "Generating reStructuredText help")
537     # This dependency ensures that the directories exist before the
538     # executable tries to write things there.
539     add_dependencies(sphinx-programs sphinx-input)
540
541     # Make the INSTALL file for CPack for the tarball. This gets put
542     # into the tarball via the CPack rules below, which requires that
543     # the INSTALL file is in a separate directory by itself.
544     set(TEXT_INSTALL_GUIDE_OUTPUT_DIR "install-guide/text")
545     add_custom_target(install-guide
546         COMMAND
547             ${SPHINX_EXECUTABLE}
548             -q -b text
549             -w sphinx-install.log
550             -d ${CMAKE_CURRENT_BINARY_DIR}/install-guide/_doctrees
551             -c ${SPHINX_INPUT_DIR}
552             "${SPHINX_INPUT_DIR}/install-guide"
553             "${TEXT_INSTALL_GUIDE_OUTPUT_DIR}"
554         COMMAND
555             ${CMAKE_COMMAND} -E rename
556             ${TEXT_INSTALL_GUIDE_OUTPUT_DIR}/index.txt
557             ${TEXT_INSTALL_GUIDE_OUTPUT_DIR}/INSTALL
558         WORKING_DIRECTORY
559             ${CMAKE_CURRENT_BINARY_DIR}
560         COMMENT "Building INSTALL with Sphinx"
561         VERBATIM
562         )
563     add_dependencies(install-guide sphinx-input)
564     gmx_cpack_add_generated_source_directory(install-guide/text DESTINATION /)
565
566     # Sphinx cache with pickled ReST documents
567     set(SPHINX_CACHE_DIR "${CMAKE_CURRENT_BINARY_DIR}/_doctrees")
568     add_custom_target(webpage-sphinx
569         DEPENDS sphinx-programs
570         DEPENDS sphinx-input
571         DEPENDS sphinx-image-conversion
572         DEPENDS manual 
573         COMMAND
574             ${CMAKE_COMMAND} -E make_directory ${SPHINX_INPUT_DIR}/_static
575         COMMAND
576             ${SPHINX_EXECUTABLE}
577             -q -b html
578             -w sphinx-html.log
579             -d "${SPHINX_CACHE_DIR}"
580             "${SPHINX_INPUT_DIR}"
581             "${HTML_OUTPUT_DIR}"
582         WORKING_DIRECTORY
583             ${CMAKE_CURRENT_BINARY_DIR}
584         COMMENT "Building HTML documentation with Sphinx"
585         VERBATIM
586         )
587
588     add_custom_target(man
589         COMMAND
590             ${SPHINX_EXECUTABLE}
591             -q -b man
592             -w sphinx-man.log
593             -d ${SPHINX_CACHE_DIR}
594             -t do_man
595             ${SPHINX_INPUT_DIR}
596             ${CMAKE_CURRENT_BINARY_DIR}/man
597         COMMENT "Building man pages with Sphinx"
598         VERBATIM)
599     add_dependencies(man sphinx-input sphinx-programs)
600     if (GMX_BUILD_HELP)
601         # If requested, install the man pages built by the 'man' target
602         # created above.  Nothing will be installed if the user did not
603         # manually build the target.
604         set(MAN_PAGE_DIR ${CMAKE_CURRENT_BINARY_DIR})
605     endif()
606
607 else()
608     set(MANUAL_BUILD_IS_POSSIBLE OFF)
609     set(MANUAL_BUILD_NOT_POSSIBLE_REASON "Sphinx version ${EXPECTED_SPHINX_VERSION} is not available")
610
611     add_custom_target(webpage-sphinx
612         COMMAND ${CMAKE_COMMAND} -E echo
613             "HTML pages cannot be built because Sphinx version ${EXPECTED_SPHINX_VERSION} is not available"
614         VERBATIM)
615     add_custom_target(install-guide
616         COMMAND ${CMAKE_COMMAND} -E echo
617             "INSTALL cannot be built because Sphinx version ${EXPECTED_SPHINX_VERSION} is not available"
618         VERBATIM)
619     add_custom_target(man
620         COMMAND ${CMAKE_COMMAND} -E echo
621             "man pages cannot be built because Sphinx version ${EXPECTED_SPHINX_VERSION} is not available"
622         VERBATIM)
623     add_custom_target(sphinx-create-texman
624         COMMAND ${CMAKE_COMMAND} -E echo
625             "Cannot prepare LaTeX input files because Sphinx version ${EXPECTED_SPHINX_VERSION} is not available"
626         VERBATIM)
627 endif()
628
629 if (MAN_PAGE_DIR)
630     set(MAN_PAGE_DIR ${MAN_PAGE_DIR}/man)
631     # Trailing slash on directory is significant for
632     # install(DIRECTORY). See CMake docs.
633     install(DIRECTORY ${MAN_PAGE_DIR}/
634         DESTINATION ${CMAKE_INSTALL_MANDIR}/man1
635         COMPONENT man OPTIONAL
636         FILES_MATCHING PATTERN "*.1")
637 endif()
638 gmx_cpack_add_generated_source_directory(man)
639
640 # Determine whether we can build all the HTML pages and content linked from
641 # there.  If not, construct an informative message if the user tries to
642 # build the target; most people never need to know, unless they've asked for
643 # the webpage build.
644 set(HTML_BUILD_IS_POSSIBLE ON)
645 set(HTML_BUILD_NOT_POSSIBLE_REASON)
646 set(HTML_BUILD_WARNINGS)
647
648 # Next, turn it off if any of the preconditions are unsatisified
649 if (NOT PYTHON_EXECUTABLE)
650     set(HTML_BUILD_IS_POSSIBLE OFF)
651     set(HTML_BUILD_NOT_POSSIBLE_REASON "Python is required")
652 elseif (NOT SPHINX_FOUND)
653     # Hardly anything gets built if Sphinx is not available, so don't bother.
654     set(HTML_BUILD_IS_POSSIBLE OFF)
655     set(HTML_BUILD_NOT_POSSIBLE_REASON "Sphinx version ${EXPECTED_SPHINX_VERSION} is required")
656 endif()
657 if (NOT MANUAL_BUILD_IS_POSSIBLE)
658     list(APPEND HTML_BUILD_WARNINGS
659          "Reference PDF manual was not built, so links to it do not work")
660 endif()
661 if (NOT DOXYGEN_EXECUTABLE)
662     list(APPEND HTML_BUILD_WARNINGS
663         "Doxygen was not available, so links to Doxygen do not work")
664 endif()
665 if (NOT DOXYGEN_DOT_EXECUTABLE)
666     list(APPEND HTML_BUILD_WARNINGS
667         "dot/graphviz was not found, so some graphs are missing")
668 endif()
669
670 if (HTML_BUILD_IS_POSSIBLE)
671     set(_webpage_target_properties)
672     if (HTML_BUILD_WARNINGS)
673         list(APPEND _webpage_target_properties
674              COMMAND ${CMAKE_COMMAND} -E echo
675                  "webpage was built, but with the following limitations:")
676         foreach(_warning ${HTML_BUILD_WARNINGS})
677         list(APPEND _webpage_target_properties
678              COMMAND ${CMAKE_COMMAND} -E echo " - ${_warning}")
679         endforeach()
680     endif()
681
682     if (MANUAL_BUILD_IS_POSSIBLE)
683         # Make the PDF reference guide
684         # TODO Try to make the PDF arrive directly in ${HTML_OUTPUT_DIR}
685         # TODO Make this depend on the output of the manual build, so that the
686         # file actually gets copied multiple times.
687         set(_manual_target_location ${HTML_OUTPUT_DIR}/manual-${GMX_VERSION_STRING}.pdf)
688         add_custom_command(
689             OUTPUT ${_manual_target_location}
690             COMMAND ${CMAKE_COMMAND}
691                 -E remove -f ${_manual_target_location}
692             COMMAND ${CMAKE_COMMAND}
693                 -E copy ${CMAKE_CURRENT_BINARY_DIR}/manual/gromacs.pdf ${_manual_target_location}
694             DEPENDS manual
695             VERBATIM)
696         list(APPEND _webpage_target_properties
697              DEPENDS ${_manual_target_location})
698     endif()
699
700     # The Doxygen configuration in doxygen/Doxyfile-common.cmakein
701     # makes all the Doxygen output directly in
702     # ${HTML_OUTPUT_DIR}/doxygen (and makes the directory if it needs
703     # to).
704
705     # Add a top-level target that builds everything related to the webpage,
706     # for Jenkins (and possibly others) to use
707     add_custom_target(webpage ${_webpage_target_properties}
708         COMMENT "Building webpage"
709         VERBATIM)
710     add_dependencies(webpage webpage-sphinx doxygen-all)
711 else()
712     add_custom_target(webpage
713         COMMAND ${CMAKE_COMMAND} -E echo
714             "Cannot build webpage because ${HTML_BUILD_NOT_POSSIBLE_REASON}"
715         COMMENT "Webpage build not possible"
716         VERBATIM)
717 endif()