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## This CMake script parses the output of ctest and prints a formatted list
## of individual test runtimes, sorted longest first.
##
## ctest > ctest_log
## cmake -DLOGFILE=ctest_log \
## -P PrintCTestRunTimes.cmake
##
################################################################################
cmake_minimum_required(VERSION 3.15)
# Prepend the string with "0" until the string length equals the specified width
function(pad_string_with_zeros string_var width)
set(local_string "${${string_var}}")
string(LENGTH "${local_string}" size)
while(size LESS width)
string(PREPEND local_string "0")
string(LENGTH "${local_string}" size)
endwhile()
set(${string_var} "${local_string}" PARENT_SCOPE)
endfunction()
################################################################################
if (NOT LOGFILE)
message(FATAL_ERROR "Missing -DLOGFILE=<ctest output> argument.")
endif()
# Check if logfile exists
if (NOT EXISTS "${LOGFILE}")
message(FATAL_ERROR "LOGFILE does not exist ('${LOGFILE}').")
endif()
string(JOIN "" regex
"^[ ]*[0-9]+/[0-9]+[ ]+Test[ ]+#"
"([0-9]+)" # Test ID
":[ ]+"
"(.+)" # Test Name
"[ ]+\\.+[ ]+"
"(.+[^ ])" # Result
"[ ]+"
"([0-9]+)" # Seconds
"\\.[0-9]+[ ]+sec[ ]*$"
)
message(DEBUG "Regex: ${regex}")
# Read the logfile and generate a map / keylist
set(keys)
file(STRINGS "${LOGFILE}" lines)
foreach(line ${lines})
# Parse each build time
string(REGEX MATCH "${regex}" _DUMMY "${line}")
if (CMAKE_MATCH_COUNT EQUAL 4)
set(test_id "${CMAKE_MATCH_1}")
set(test_name "${CMAKE_MATCH_2}")
set(test_result "${CMAKE_MATCH_3}")
set(tmp "${CMAKE_MATCH_4}") # floor(runtime_seconds)
# Compute human readable time
math(EXPR days "${tmp} / (60 * 60 * 24)")
math(EXPR tmp "${tmp} - (${days} * 60 * 60 * 24)")
math(EXPR hours "${tmp} / (60 * 60)")
math(EXPR tmp "${tmp} - (${hours} * 60 * 60)")
math(EXPR minutes "${tmp} / (60)")
math(EXPR tmp "${tmp} - (${minutes} * 60)")
math(EXPR seconds "${tmp}")
# Format time components
pad_string_with_zeros(days 3)
pad_string_with_zeros(hours 2)
pad_string_with_zeros(minutes 2)
pad_string_with_zeros(seconds 2)
# Construct table entry
# Later values in the file for the same command overwrite earlier entries
string(MAKE_C_IDENTIFIER "${test_id}" key)
string(JOIN " | " ENTRY_${key}
"${days}d ${hours}h ${minutes}m ${seconds}s"
"${test_result}"
"${test_id}: ${test_name}"
)
# Record the key:
list(APPEND keys "${key}")
endif()
endforeach()
list(REMOVE_DUPLICATES keys)
# Build the entry list:
set(entries)
foreach(key ${keys})
list(APPEND entries "${ENTRY_${key}}")
endforeach()
if (NOT entries)
message(FATAL_ERROR "LOGFILE contained no test times ('${LOGFILE}').")
endif()
# Sort in descending order:
list(SORT entries ORDER DESCENDING)
# Dump table:
foreach(entry ${entries})
message(STATUS ${entry})
endforeach()
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