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add CMake support for fetching external potential files

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This commit is contained in:
Axel Kohlmeyer
2020-06-10 12:29:48 -04:00
parent 20a9794b92
commit f36a84bdd3
2 changed files with 26 additions and 0 deletions
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9
cmake/CMakeLists.txt
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@ -365,6 +365,15 @@ target_link_libraries(lammps PRIVATE ${MATH_LIBRARIES})
include(StyleHeaderUtils)
RegisterStyles(${LAMMPS_SOURCE_DIR})
########################################################
# Fetch missing external files and archives for packages
########################################################
foreach(PKG ${STANDARD_PACKAGES} ${SUFFIX_PACKAGES})
if(PKG_${PKG})
FetchPotentials(${${PKG}_SOURCES_DIR} ${LAMMPS_POTENTIALS_DIR})
endif()
endforeach()
##############################################
# add sources of enabled packages
############################################

17
cmake/Modules/LAMMPSUtils.cmake
View File

@ -85,3 +85,20 @@ function(GenerateBinaryHeader varname outfile files)
file(APPEND ${outfile} "const unsigned int ${varname}_size = sizeof(${varname});\n")
endforeach()
endfunction(GenerateBinaryHeader)
# fetch missing potential files
function(FetchPotentials pkgfolder potfolder)
if (EXISTS "${pkgfolder}/potentials.txt")
set(LAMMPS_POTENTIALS_URL "https://download.lammps.org/potentials")
file(STRINGS "${pkgfolder}/potentials.txt" linelist REGEX "^[^#].")
foreach(line ${linelist})
string(FIND ${line} " " blank)
math(EXPR plusone "${blank}+1")
string(SUBSTRING ${line} 0 ${blank} pot)
string(SUBSTRING ${line} ${plusone} -1 sum)
message("Checking whether to download external potential ${pot} from ${LAMMPS_POTENTIALS_URL}")
file(DOWNLOAD "${LAMMPS_POTENTIALS_URL}/${pot}.${sum}" "${LAMMPS_POTENTIALS_DIR}/${pot}"
EXPECTED_HASH MD5=${sum} SHOW_PROGRESS)
endforeach()
endif()
endfunction(FetchPotentials)