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!># Discovery of sources
!>
!> This module implements subroutines for building a list of
!> `[[srcfile_t]]` objects by looking for source files in the filesystem.
!>
module fpm_sources
use fpm_error, only: error_t
use fpm_model, only: srcfile_t, FPM_UNIT_PROGRAM
use fpm_filesystem, only: basename, canon_path, dirname, join_path, list_files
use fpm_strings, only: lower, str_ends_with, string_t, operator(.in.)
use fpm_source_parsing, only: parse_f_source, parse_c_source
use fpm_manifest_executable, only: executable_config_t
implicit none
private
public :: add_sources_from_dir, add_executable_sources
character(4), parameter :: fortran_suffixes(2) = [".f90", &
".f "]
contains
!> Wrapper to source parsing routines.
!> Selects parsing routine based on source file name extension
function parse_source(source_file_path,error) result(source)
character(*), intent(in) :: source_file_path
type(error_t), allocatable, intent(out) :: error
type(srcfile_t) :: source
if (str_ends_with(lower(source_file_path), fortran_suffixes)) then
source = parse_f_source(source_file_path, error)
if (source%unit_type == FPM_UNIT_PROGRAM) then
source%exe_name = basename(source_file_path,suffix=.false.)
end if
else if (str_ends_with(lower(source_file_path), [".c", ".h"])) then
source = parse_c_source(source_file_path,error)
end if
if (allocated(error)) then
return
end if
end function parse_source
!> Add to `sources` by looking for source files in `directory`
subroutine add_sources_from_dir(sources,directory,scope,with_executables,recurse,error)
!> List of `[[srcfile_t]]` objects to append to. Allocated if not allocated
type(srcfile_t), allocatable, intent(inout), target :: sources(:)
!> Directory in which to search for source files
character(*), intent(in) :: directory
!> Scope to apply to the discovered sources, see [[fpm_model]] for enumeration
integer, intent(in) :: scope
!> Executable sources (fortran `program`s) are ignored unless `with_executables=.true.`
logical, intent(in), optional :: with_executables
!> Whether to recursively search subdirectories, default is `.true.`
logical, intent(in), optional :: recurse
!> Error handling
type(error_t), allocatable, intent(out) :: error
integer :: i
logical, allocatable :: is_source(:), exclude_source(:)
type(string_t), allocatable :: file_names(:)
type(string_t), allocatable :: src_file_names(:)
type(string_t), allocatable :: existing_src_files(:)
type(srcfile_t), allocatable :: dir_sources(:)
! Scan directory for sources
call list_files(directory, file_names,recurse=merge(recurse,.true.,present(recurse)))
if (allocated(sources)) then
allocate(existing_src_files(size(sources)))
do i=1,size(sources)
existing_src_files(i)%s = canon_path(sources(i)%file_name)
end do
else
allocate(existing_src_files(0))
end if
is_source = [(.not.(canon_path(file_names(i)%s) .in. existing_src_files) .and. &
(str_ends_with(lower(file_names(i)%s), fortran_suffixes) .or. &
str_ends_with(lower(file_names(i)%s),[".c",".h"]) ),i=1,size(file_names))]
src_file_names = pack(file_names,is_source)
allocate(dir_sources(size(src_file_names)))
allocate(exclude_source(size(src_file_names)))
do i = 1, size(src_file_names)
dir_sources(i) = parse_source(src_file_names(i)%s,error)
if (allocated(error)) return
dir_sources(i)%unit_scope = scope
! Exclude executables unless specified otherwise
exclude_source(i) = (dir_sources(i)%unit_type == FPM_UNIT_PROGRAM)
if (dir_sources(i)%unit_type == FPM_UNIT_PROGRAM .and. &
& present(with_executables)) then
if (with_executables) then
exclude_source(i) = .false.
end if
end if
end do
if (.not.allocated(sources)) then
sources = pack(dir_sources,.not.exclude_source)
else
sources = [sources, pack(dir_sources,.not.exclude_source)]
end if
end subroutine add_sources_from_dir
!> Add to `sources` using the executable and test entries in the manifest and
!> applies any executable-specific overrides such as `executable%name`.
!> Adds all sources (including modules) from each `executable%source_dir`
subroutine add_executable_sources(sources,executables,scope,auto_discover,error)
!> List of `[[srcfile_t]]` objects to append to. Allocated if not allocated
type(srcfile_t), allocatable, intent(inout), target :: sources(:)
!> List of `[[executable_config_t]]` entries from manifest
class(executable_config_t), intent(in) :: executables(:)
!> Scope to apply to the discovered sources: either `FPM_SCOPE_APP` or `FPM_SCOPE_TEST`, see [[fpm_model]]
integer, intent(in) :: scope
!> If `.false.` only executables and tests specified in the manifest are added to `sources`
logical, intent(in) :: auto_discover
!> Error handling
type(error_t), allocatable, intent(out) :: error
integer :: i, j
type(string_t), allocatable :: exe_dirs(:)
type(srcfile_t) :: exe_source
call get_executable_source_dirs(exe_dirs,executables)
do i=1,size(exe_dirs)
call add_sources_from_dir(sources,exe_dirs(i)%s, scope, &
with_executables=auto_discover, recurse=.false., error=error)
if (allocated(error)) then
return
end if
end do
exe_loop: do i=1,size(executables)
! Check if executable already discovered automatically
! and apply any overrides
do j=1,size(sources)
if (basename(sources(j)%file_name,suffix=.true.) == executables(i)%main .and.&
canon_path(dirname(sources(j)%file_name)) == &
canon_path(executables(i)%source_dir) ) then
sources(j)%exe_name = executables(i)%name
if (allocated(executables(i)%link)) then
sources(j)%link_libraries = executables(i)%link
end if
cycle exe_loop
end if
end do
! Add if not already discovered (auto_discovery off)
exe_source = parse_source(join_path(executables(i)%source_dir,executables(i)%main),error)
exe_source%exe_name = executables(i)%name
if (allocated(executables(i)%link)) then
exe_source%link_libraries = executables(i)%link
end if
exe_source%unit_scope = scope
if (allocated(error)) return
if (.not.allocated(sources)) then
sources = [exe_source]
else
sources = [sources, exe_source]
end if
end do exe_loop
end subroutine add_executable_sources
!> Build a list of unique source directories
!> from executables specified in manifest
subroutine get_executable_source_dirs(exe_dirs,executables)
type(string_t), allocatable, intent(inout) :: exe_dirs(:)
class(executable_config_t), intent(in) :: executables(:)
type(string_t) :: dirs_temp(size(executables))
integer :: i, n
n = 0
do i=1,size(executables)
if (.not.(executables(i)%source_dir .in. dirs_temp)) then
n = n + 1
dirs_temp(n)%s = executables(i)%source_dir
end if
end do
if (.not.allocated(exe_dirs)) then
exe_dirs = dirs_temp(1:n)
else
exe_dirs = [exe_dirs,dirs_temp(1:n)]
end if
end subroutine get_executable_source_dirs
end module fpm_sources
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