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Check if output and restart file path is writeable #167

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Jul 31, 2023
Merged

Check if output and restart file path is writeable #167

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24 changes: 24 additions & 0 deletions src/io/io_routines.f90
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Original file line number Diff line number Diff line change
Expand Up @@ -1619,4 +1619,28 @@ integer function io_newunit(unit)
if (present(unit)) unit=io_newunit
end function io_newunit

!>------------------------------------------------------------
!! Checks if path exists from filename string
!!
!! If directory does not exist print error message and stop program
!!
!! @param filename string of path to write output/restart files to
!!
!!------------------------------------------------------------
subroutine check_writeable_path(filename)
use icar_constants, only : kMAX_FILE_LENGTH
implicit none
character(len=kMAX_FILE_LENGTH), intent(in) :: filename
character(len=kMAX_FILE_LENGTH) :: dir_path
integer :: dir_separator
logical :: dir_exists
dir_separator = index(filename, '/', back=.true.)
if (dir_separator > 0) then
dir_path = filename(1:dir_separator)
inquire(file=dir_path, exist=dir_exists)
if (dir_exists .eqv. .false.) then
stop "Following directory does not exist to write to: " // dir_path
end if
end if
end subroutine check_writeable_path
end module io_routines
2 changes: 1 addition & 1 deletion src/makefile
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Expand Up @@ -745,7 +745,7 @@ $(BUILD)pbl_utilities.o:$(UTIL)pbl_utilities.f90 $(BUILD)icar_constants.o \
# I/O routines
###################################################################

$(BUILD)io_routines.o:$(IO)io_routines.f90 $(BUILD)data_structures.o
$(BUILD)io_routines.o:$(IO)io_routines.f90 $(BUILD)data_structures.o $(BUILD)icar_constants.o

$(BUILD)lt_lut_io.o: $(IO)lt_lut_io.f90 $(BUILD)data_structures.o $(BUILD)io_routines.o \
$(BUILD)string.o $(BUILD)opt_types.o $(BUILD)icar_constants.o
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9 changes: 6 additions & 3 deletions src/objects/options_obj.f90
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Expand Up @@ -4,7 +4,7 @@
kNO_STOCHASTIC, kVERSION_STRING, kMAX_FILE_LENGTH, kMAX_NAME_LENGTH, pi, &
kWATER_LAKE, &
kWIND_LINEAR, kLINEAR_ITERATIVE_WINDS, kITERATIVE_WINDS, kCONSERVE_MASS
use io_routines, only : io_newunit
use io_routines, only : io_newunit, check_writeable_path
use time_io, only : find_timestep_in_file
use time_delta_object, only : time_delta_t
use time_object, only : Time_type
Expand Down Expand Up @@ -510,7 +510,7 @@ subroutine init_restart_options(filename, options)
restart_file = get_image_filename(this_image(), restart_file, restart_time)
restart_step = find_timestep_in_file(restart_file, 'time', restart_time, time_at_step)

! check to see if we actually udpated the restart date and print if in a more verbose mode
! check to see if we actually updated the restart date and print if in a more verbose mode
if (options%debug) then
if (restart_time /= time_at_step) then
if (this_image()==1) write(*,*) " updated restart date: ", trim(time_at_step%as_string())
Expand Down Expand Up @@ -702,10 +702,13 @@ subroutine output_namelist(filename, options)
options%restart_count = max(24, nint(restartinterval))
endif

! check if directory paths to output and restart file strings exist
! stop and report error if they do not rather than failing at write step
call check_writeable_path(output_file)
call check_writeable_path(restart_file)
options%output_file = output_file
options%restart_file = restart_file


end subroutine output_namelist


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