2 # ExternalSource_Download(VAR ...)
4 function(ExternalSource_Download PREFIX)
5 include(CMakeParseArguments)
6 nnas_include(StampTools)
8 cmake_parse_arguments(ARG "" "DIRNAME;URL;CHECKSUM" "" ${ARGN})
14 # Use the first unparsed argument as URL (for backward compatibility)
15 list(GET ARG_UNPARSED_ARGUMENTS 0 URL)
20 # Use PREFIX as DIRNAME (for backward compatibility)
21 set(DIRNAME ${PREFIX})
23 set(DIRNAME ${ARG_DIRNAME})
24 endif(NOT ARG_DIRNAME)
26 get_filename_component(FILENAME ${URL} NAME)
28 set(CACHE_DIR "${NNAS_EXTERNALS_DIR}")
29 set(OUT_DIR "${CACHE_DIR}/${DIRNAME}")
30 set(TMP_DIR "${CACHE_DIR}/${DIRNAME}-tmp")
32 set(DOWNLOAD_PATH "${CACHE_DIR}/${DIRNAME}-${FILENAME}")
33 set(STAMP_PATH "${CACHE_DIR}/${DIRNAME}.stamp")
35 if(NOT EXISTS "${CACHE_DIR}")
36 file(MAKE_DIRECTORY "${CACHE_DIR}")
37 endif(NOT EXISTS "${CACHE_DIR}")
39 # Compare URL in STAMP file and the given URL
40 Stamp_Check(URL_CHECK "${STAMP_PATH}" "${URL}")
42 if(NOT EXISTS "${OUT_DIR}" OR NOT URL_CHECK)
43 file(REMOVE "${STAMP_PATH}")
44 file(REMOVE_RECURSE "${OUT_DIR}")
45 file(REMOVE_RECURSE "${TMP_DIR}")
47 file(MAKE_DIRECTORY "${TMP_DIR}")
49 message(STATUS "Download ${PREFIX} from ${URL}")
51 foreach(retry_count RANGE 5)
52 message(STATUS "(Trial Count : ${retry_count})")
54 file(DOWNLOAD ${URL} "${DOWNLOAD_PATH}"
58 list(GET status 0 status_code)
59 list(GET status 1 status_string)
62 if(status_code EQUAL 0)
66 message(WARNING "error: downloading '${URL}' failed
67 status_code: ${status_code}
68 status_string: ${status_string}
72 if(retry_count EQUAL 5)
73 message(FATAL_ERROR "Download ${PREFIX} from ${URL} - failed")
76 # Retry after 10 seconds when download fails
77 execute_process(COMMAND sleep 10)
80 message(STATUS "Download ${PREFIX} from ${URL} - done")
84 message(STATUS "Verify ${PREFIX} archive")
85 string(REPLACE "=" ";" CHECKSUM_SPEC "${ARG_CHECKSUM}")
87 list(GET CHECKSUM_SPEC 0 CHECKSUM_ALG)
88 list(GET CHECKSUM_SPEC 1 CHECKSUM_VAL)
89 string(STRIP "${CHECKSUM_VAL}" CHECKSUM_VAL)
91 set(EXPECTED_CHECKSUM ${CHECKSUM_VAL})
92 file(${CHECKSUM_ALG} "${DOWNLOAD_PATH}" OBTAINED_CHECKSUM)
94 if(NOT (EXPECTED_CHECKSUM STREQUAL OBTAINED_CHECKSUM))
95 message(STATUS "CHECKSUM MISMATCH")
96 message(STATUS " expected: ${EXPECTED_CHECKSUM}")
97 message(STATUS " obtained: ${OBTAINED_CHECKSUM}")
98 message(FATAL_ERROR "Verify ${PREFIX} archive - fail")
99 endif(NOT (EXPECTED_CHECKSUM STREQUAL OBTAINED_CHECKSUM))
101 message(STATUS "Verify ${PREFIX} archive - done")
104 message(STATUS "Extract ${PREFIX}")
105 execute_process(COMMAND ${CMAKE_COMMAND} -E tar xfz "${DOWNLOAD_PATH}"
106 WORKING_DIRECTORY "${TMP_DIR}"
107 ERROR_VARIABLE EXTRACTION_ERROR)
110 message(FATAL_ERROR "Extract ${PREFIX} - failed")
111 endif(EXTRACTION_ERROR)
113 file(REMOVE "${DOWNLOAD_PATH}")
114 message(STATUS "Extract ${PREFIX} - done")
116 message(STATUS "Cleanup ${PREFIX}")
117 file(GLOB contents "${TMP_DIR}/*")
118 list(LENGTH contents n)
119 if(NOT n EQUAL 1 OR NOT IS_DIRECTORY "${contents}")
120 set(contents "${TMP_DIR}")
123 get_filename_component(contents ${contents} ABSOLUTE)
125 file(RENAME ${contents} "${OUT_DIR}")
126 file(REMOVE_RECURSE "${TMP_DIR}")
127 file(WRITE "${STAMP_PATH}" "${URL}")
128 message(STATUS "Cleanup ${PREFIX} - done")
131 set(${PREFIX}_SOURCE_DIR "${OUT_DIR}" PARENT_SCOPE)
132 endfunction(ExternalSource_Download)