add CMake option to skip automatic download of large potential files

This commit is contained in:
Axel Kohlmeyer
2023-01-21 11:18:51 -05:00
parent 671b2b80fc
commit 7eab385bb3
2 changed files with 23 additions and 19 deletions

View File

@ -566,6 +566,8 @@ RegisterStyles(${LAMMPS_SOURCE_DIR})
########################################################
# Fetch missing external files and archives for packages
########################################################
option(DOWNLOAD_POTENTIALS "Automatically download large potential files" ON)
mark_as_advanced(DOWNLOAD_POTENTIALS)
foreach(PKG ${STANDARD_PACKAGES} ${EXTRA_PACKAGES} ${SUFFIX_PACKAGES})
if(PKG_${PKG})
FetchPotentials(${LAMMPS_SOURCE_DIR}/${PKG} ${LAMMPS_POTENTIALS_DIR})

View File

@ -118,25 +118,27 @@ endfunction(GenerateBinaryHeader)
# fetch missing potential files
function(FetchPotentials pkgfolder potfolder)
if(EXISTS "${pkgfolder}/potentials.txt")
file(STRINGS "${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} ${plusone} -1 sum)
if(EXISTS "${LAMMPS_POTENTIALS_DIR}/${pot}")
file(MD5 "${LAMMPS_POTENTIALS_DIR}/${pot}" oldsum)
endif()
if(NOT sum STREQUAL oldsum)
message(STATUS "Downloading external potential ${pot} from ${LAMMPS_POTENTIALS_URL}")
string(MD5 TMP_EXT "${CMAKE_BINARY_DIR}")
file(DOWNLOAD "${LAMMPS_POTENTIALS_URL}/${pot}.${sum}" "${CMAKE_BINARY_DIR}/${pot}.${TMP_EXT}"
EXPECTED_HASH MD5=${sum} SHOW_PROGRESS)
file(COPY "${CMAKE_BINARY_DIR}/${pot}.${TMP_EXT}" DESTINATION "${LAMMPS_POTENTIALS_DIR}")
file(RENAME "${LAMMPS_POTENTIALS_DIR}/${pot}.${TMP_EXT}" "${LAMMPS_POTENTIALS_DIR}/${pot}")
endif()
endforeach()
if(DOWNLOAD_POTENTIALS)
if(EXISTS "${pkgfolder}/potentials.txt")
file(STRINGS "${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} ${plusone} -1 sum)
if(EXISTS "${LAMMPS_POTENTIALS_DIR}/${pot}")
file(MD5 "${LAMMPS_POTENTIALS_DIR}/${pot}" oldsum)
endif()
if(NOT sum STREQUAL oldsum)
message(STATUS "Downloading external potential ${pot} from ${LAMMPS_POTENTIALS_URL}")
string(RANDOM LENGTH 10 TMP_EXT)
file(DOWNLOAD "${LAMMPS_POTENTIALS_URL}/${pot}.${sum}" "${CMAKE_BINARY_DIR}/${pot}.${TMP_EXT}"
EXPECTED_HASH MD5=${sum} SHOW_PROGRESS)
file(COPY "${CMAKE_BINARY_DIR}/${pot}.${TMP_EXT}" DESTINATION "${LAMMPS_POTENTIALS_DIR}")
file(RENAME "${LAMMPS_POTENTIALS_DIR}/${pot}.${TMP_EXT}" "${LAMMPS_POTENTIALS_DIR}/${pot}")
endif()
endforeach()
endif()
endif()
endfunction(FetchPotentials)