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module instructions
implicit none
contains
function parse_instructions(filename) result(j)
use json_module
implicit none
type(json_file)::j
character(*), intent(in)::filename
call j%initialize()
call j%load_file(filename=filename)
end function parse_instructions
subroutine destroy_instructions(j)
use json_module
implicit none
type(json_file)::j
call j%destroy()
end subroutine destroy_instructions
subroutine get_description(j, description)
use json_module
implicit none
class(json_file)::j
character(*), intent(out)::description
character(len=:), allocatable::json_string_value
logical::found
call j%get("description", json_string_value, found)
if(.not. found .or. .not. allocated(json_string_value)) then
description = "(instructions)"
else
description = json_string_value
end if
end subroutine get_description
function get_task_count(j) result(n)
use json_module
implicit none
class(json_file)::j
integer::n
type(json_value), pointer ::server
logical::found
character(3)::index_string
n = 0
found = .true.
do while(found)
n = n + 1
write(index_string, '(I3)') n
call j%get("tasks("//trim(index_string)//")", server, found)
end do
n = n - 1
end function get_task_count
pure subroutine task_component(i, component, label)
implicit none
integer, intent(in)::i
character(*), intent(in)::component
character(*), intent(out)::label
write(label, '(A6,I3,A2)') "tasks(", i, ")."
label = label//trim(component)
end subroutine task_component
function get_task_string(j, i, component, res) result(found)
use json_module
implicit none
class(json_file)::j
integer, intent(in)::i
character(*), intent(in)::component
character(*), intent(out)::res
logical::found
character(len=64)::label
character(len=:), allocatable::json_string_value
call task_component(i, component, label)
call j%get(trim(label), json_string_value, found)
if(allocated(json_string_value)) then
res = json_string_value
end if
end function get_task_string
function get_task_logical(j, i, component, res) result(found)
use json_module
implicit none
class(json_file)::j
integer, intent(in)::i
character(*), intent(in)::component
logical, intent(out)::res
logical::found
character(len=64)::label
character(len=:), allocatable::json_string_value
call task_component(i, component, label)
call j%get(trim(label), res, found)
end function get_task_logical
subroutine get_task_name(j, i, description)
use json_module
implicit none
class(json_file)::j
character(*), intent(out)::description
integer, intent(in)::i
logical::found
found = get_task_string(j, i, "name", description)
if(.not. found) then
write(description, '(A4, 1X, I3)') "Task", i
end if
end subroutine get_task_name
subroutine get_task_operation(j, i, op)
use json_module
implicit none
class(json_file)::j
character(*), intent(out)::op
integer, intent(in)::i
logical::found
found = get_task_string(j, i, "operation", op)
if(.not. found) then
op = " "
end if
end subroutine get_task_operation
function perform_task(j, i, capture_filename) result(success)
use json_module
use tasks
use utilities
implicit none
class(json_file)::j
integer, intent(in)::i
character(len=:), pointer, intent(out)::capture_filename
logical::success
character(32)::operation
character(256)::url
character(256)::filename
character(256)::branch
logical::destructive
logical, dimension(4)::found
call get_task_operation(j, i, operation)
found = .true.
capture_filename => null()
if(trim(operation) == "upload") then
found(1) = get_task_string(j, i, "url", url)
found(2) = get_task_string(j, i, "filename", filename)
if(.not. all(found,1)) then
success = .false.
else
success = upload(url, filename)
end if
else if(trim(operation) == "download") then
found(1) = get_task_string(j, i, "url", url)
found(2) = get_task_string(j, i, "filename", filename)
if(.not. all(found,1)) then
success = .false.
else
success = download(url, filename)
end if
else if(trim(operation) == "git_update") then
capture_filename => generate_temporary_filename()
found(1) = get_task_string(j, i, "origin", url)
found(2) = get_task_string(j, i, "branch", branch)
found(3) = get_task_string(j, i, "directory", filename)
found(4) = get_task_logical(j, i, "destructive", destructive)
if(.not. found(4)) then
destructive = .false.
found(4) = .true.
end if
if(.not. all(found,1)) then
success = .false.
else
success = git_update(url, branch, filename, destructive, capture_filename)
end if
else if(trim(operation) == "shell") then
capture_filename => generate_temporary_filename()
found(1) = get_task_string(j, i, "command", url)
found(2) = get_task_string(j, i, "directory", filename)
if(.not. all(found,1)) then
success = .false.
else
success = shell(command, directory, capture_filename)
end if
else if(trim(operation) == "delete_tree") then
found(1) = get_task_string(j, i, "directory", filename)
if(.not. all(found,1)) then
success = .false.
else
success = delete_tree(command, directory, capture_filename)
end if
end if
end function perform_task
subroutine perform_tasks(j)
use json_module
implicit none
class(json_file)::j
integer::task_count
integer::i
logical::res
character(len=:), pointer::captured_filename
task_count = get_task_count(j)
do i = 1, task_count
res = perform_task(j, i, captured_filename)
if(associated(captured_filename)) then
if(res) then
else
exit
endif
else
if(res) then
else
exit
endif
end if
end do
end subroutine perform_tasks
end module instructions
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