2 # This file is part of the GROMACS molecular simulation package.
4 # Copyright (c) 2012,2013, by the GROMACS development team, led by
5 # David van der Spoel, Berk Hess, Erik Lindahl, and including many
6 # others, as listed in the AUTHORS file in the top-level source
7 # directory and at http://www.gromacs.org.
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.
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.
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.
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.
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.
35 # Generate Gromacs development build version information.
37 # The script generates version information for a build from a development
38 # source tree based on git repository information.
39 # It is assumed that by default the script is run in cmake script mode.
40 # If *not* called in script mode but used in generating cache variables,
41 # GEN_VERSION_INFO_INTERNAL has to be set ON.
43 # The following variables have to be previously defined:
44 # GIT_EXECUTABLE - path to git binary
45 # GIT_VERSION - git version (if not defined it's assumed that >=1.5.3)
46 # PROJECT_VERSION - hard-coded version string, should have the following structure:
47 # VERSION[-dev-SUFFIX] where the VERSION can have any form and the suffix
48 # is optional but should start with -dev
49 # PROJECT_SOURCE_DIR - top level source directory (which has to be in git)
50 # VERSION_C_CMAKEIN - path to the version.c.cmakein file
51 # VERSION_C_OUT - path to the version.c output file
54 # i) Script mode: version.c configured from the input version.c.cmakein using
55 # the variables listed below.
56 # ii) Cache variable mode: the varables below are set in cache.
58 # GMX_PROJECT_VERSION_STR - version string
59 # GMX_GIT_HEAD_HASH - git hash of current local HEAD
60 # GMX_GIT_REMOTE_HASH - git hash of the first ancestor commit from the
61 # main Gromacs repository
63 # Szilard Pall (pszilard@cbr.su.se)
65 if("${PROJECT_VERSION}" STREQUAL "")
66 message(FATAL_ERROR "PROJECT_VERSION undefined!")
68 set(VER ${PROJECT_VERSION})
70 # if we're generating variables for cache unset the variables
71 if(GEN_VERSION_INFO_INTERNAL)
72 set(GMX_PROJECT_VERSION_STR)
73 set(GMX_GIT_HEAD_HASH)
74 set(GMX_GIT_REMOTE_HASH)
77 # bail if the source tree is not in a git repository
78 if(NOT EXISTS "${PROJECT_SOURCE_DIR}/.git")
79 message(FATAL_ERROR "Project source directory ${PROJECT_SOURCE_DIR} not in git")
82 # if git executable exists and it's compatible version
83 # build the development version string
84 # this should at some point become VERSION_LESS
85 if(EXISTS "${GIT_EXECUTABLE}" AND NOT GIT_VERSION STRLESS "1.5.3")
87 execute_process(COMMAND ${GIT_EXECUTABLE} update-index -q --refresh
88 WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
91 ERROR_VARIABLE EXEC_ERR
92 OUTPUT_STRIP_TRAILING_WHITESPACE
95 # get the full hash of the current HEAD
96 execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse HEAD
97 WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
98 OUTPUT_VARIABLE HEAD_HASH
99 ERROR_VARIABLE EXEC_ERR
100 OUTPUT_STRIP_TRAILING_WHITESPACE
102 set(GMX_GIT_HEAD_HASH ${HEAD_HASH})
103 # extract the shortened hash (7 char)
104 execute_process(COMMAND ${GIT_EXECUTABLE} rev-parse --short HEAD
105 WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
106 OUTPUT_VARIABLE HEAD_HASH_SHORT
107 ERROR_VARIABLE EXEC_ERR
108 OUTPUT_STRIP_TRAILING_WHITESPACE
111 # if there are local uncommitted changes, the build gets labeled "dirty"
112 execute_process(COMMAND ${GIT_EXECUTABLE} diff-index --name-only HEAD
113 WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
114 OUTPUT_VARIABLE SRC_LOCAL_CHANGES
115 ERROR_VARIABLE EXEC_ERR
116 OUTPUT_STRIP_TRAILING_WHITESPACE
118 if(NOT "${SRC_LOCAL_CHANGES}" STREQUAL "")
119 set(DIRTY_STR "-dirty")
120 set(GMX_GIT_HEAD_HASH "${GMX_GIT_HEAD_HASH} (dirty)")
123 # get the date of the HEAD commit
124 execute_process(COMMAND ${GIT_EXECUTABLE} rev-list -n1 "--pretty=format:%ci" HEAD
125 WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
126 OUTPUT_VARIABLE HEAD_DATE
127 ERROR_VARIABLE EXEC_ERR
128 OUTPUT_STRIP_TRAILING_WHITESPACE
130 string(REGEX REPLACE "\n| " ";" HEAD_DATE "${HEAD_DATE}")
131 list(GET HEAD_DATE 2 HEAD_DATE)
132 string(REGEX REPLACE "-" "" HEAD_DATE "${HEAD_DATE}")
134 # compile the version string suffix
135 set(VERSION_STR_SUFFIX "${HEAD_DATE}-${HEAD_HASH_SHORT}${DIRTY_STR}")
137 # find the names of remotes that are located on the official gromacs
139 execute_process(COMMAND ${GIT_EXECUTABLE} config --get-regexp
140 "remote\\..*\\.url" "\\.gromacs\\.org[:/].*gromacs(\\.git)?$"
141 WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
142 OUTPUT_VARIABLE GMX_REMOTES
143 ERROR_VARIABLE EXEC_ERR
144 OUTPUT_STRIP_TRAILING_WHITESPACE
146 # if there are remotes from the gromacs git servers, try to find ancestor
147 # commits of the current HEAD from this remote;
148 # otherwise, label the build "unknown"
149 if("${GMX_REMOTES}" STREQUAL "")
150 set(VERSION_STR_SUFFIX "${VERSION_STR_SUFFIX}-unknown")
151 set(GMX_GIT_REMOTE_HASH "unknown")
153 string(REPLACE "\n" ";" GMX_REMOTES ${GMX_REMOTES})
154 # construct a command pipeline that produces a reverse-time-ordered
155 # list of commits and their annotated names in GMX_REMOTES
156 # the max-count limit is there to put an upper bound on the execution time
157 set(BASEREVCOMMAND "COMMAND ${GIT_EXECUTABLE} rev-list --max-count=1000 HEAD")
158 foreach(REMOTE ${GMX_REMOTES})
159 string(REGEX REPLACE "remote\\.(.*)\\.url.*" "\\1" REMOTE ${REMOTE})
160 set(BASEREVCOMMAND "${BASEREVCOMMAND} COMMAND ${GIT_EXECUTABLE} name-rev --stdin --refs=refs/remotes/${REMOTE}/*")
162 # this is necessary for CMake to properly split the variable into
163 # parameters for execute_process().
164 string(REPLACE " " ";" BASEREVCOMMAND ${BASEREVCOMMAND})
165 # find the first ancestor in the list provided by rev-list (not
166 # necessarily the last though) which is in GMX_REMOTE, extract the
167 # hash and the number of commits HEAD is ahead with
168 execute_process(${BASEREVCOMMAND}
169 WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
170 OUTPUT_VARIABLE ANCESTOR_LIST
172 string(REGEX REPLACE "\n" ";" ANCESTOR_LIST "${ANCESTOR_LIST}")
175 set(GMX_GIT_REMOTE_HASH "")
176 foreach(ANCESTOR ${ANCESTOR_LIST})
177 string(REPLACE "\n" "" HASH_AND_REVNAMES "${ANCESTOR}")
178 string(REPLACE " " ";" HASH_AND_REVNAMES "${HASH_AND_REVNAMES}")
179 list(LENGTH HASH_AND_REVNAMES COUNT)
180 # stop and set the hash if we have a hit, otherwise loop and count
181 # how far ahead is the local repo
183 LIST(GET HASH_AND_REVNAMES 0 GMX_GIT_REMOTE_HASH)
186 math(EXPR AHEAD ${AHEAD}+1)
188 # mark the build "local" if didn't find any commits that are from
189 # remotes/${GMX_REMOTE}/*
190 if("${GMX_GIT_REMOTE_HASH}" STREQUAL "")
191 set(GMX_GIT_REMOTE_HASH "unknown")
192 set(VERSION_STR_SUFFIX "${VERSION_STR_SUFFIX}-local")
193 # don't print the remote hash if there are no local commits
194 elseif("${GMX_GIT_REMOTE_HASH}" STREQUAL "${HEAD_HASH}")
195 set(GMX_GIT_REMOTE_HASH "")
197 set(GMX_GIT_REMOTE_HASH "${GMX_GIT_REMOTE_HASH} (${AHEAD} newer local commits)")
201 # compile final version string, if there is already a -dev suffix in VER
202 # remove everything after this and replace it with the generated suffix
203 string(REGEX REPLACE "(.*)-dev.*" "\\1" VER "${VER}")
204 set(GMX_PROJECT_VERSION_STR "${VER}-dev-${VERSION_STR_SUFFIX}")
206 # the version has to be defined - if not we're not using version.h/.c and set
207 # the GIT related information to "unknown"
208 message(WARNING "Source tree seems to be a repository, but no compatible git is available, using hard-coded version string")
209 set(GMX_PROJECT_VERSION_STR "${PROJECT_VERSION}")
210 set(GMX_GIT_HEAD_HASH "unknown")
211 set(GMX_GIT_REMOTE_HASH "unknown")
214 # if we're generating cache variables set these
215 # otherwise it's assumed that it's called in script mode to generate version.c
216 if(GEN_VERSION_INFO_INTERNAL)
217 set(GMX_PROJECT_VERSION_STR ${GMX_PROJECT_VERSION_STR}
218 CACHE STRING "Gromacs version string" FORCE)
219 set(GMX_GIT_HEAD_HASH ${GMX_GIT_HEAD_HASH}${DIRTY_STR}
220 CACHE STRING "Current git HEAD commit object" FORCE)
221 set(GMX_GIT_REMOTE_HASH ${GMX_GIT_REMOTE_HASH}
222 CACHE STRING "Commmit object of the nearest ancestor present in the Gromacs git repository" FORCE)
223 mark_as_advanced(GMX_GIT_HEAD_HASH GMX_GIT_REMOTE_HASH)
225 if("${VERSION_C_CMAKEIN}" STREQUAL "")
226 message(FATAL_ERROR "Missing input parameter VERSION_C_CMAKEIN!")
228 if("${VERSION_C_OUT}" STREQUAL "")
229 message(FATAL_ERROR "Missing input parameter VERSION_C_OUT!")
232 configure_file(${VERSION_C_CMAKEIN} ${VERSION_C_OUT})