Just some refactoring

src/fpm.f90

@@ -42,7 +42,6 @@ subroutine build_model(model, settings, package, error)
     integer :: i, j
     type(package_config_t) :: dependency
     character(len=:), allocatable :: manifest, lib_dir
-    character(len=:), allocatable :: version
     logical :: has_cpp
     logical :: duplicates_found
     type(string_t) :: include_dir
@@ -324,7 +323,7 @@ end subroutine check_modules_for_duplicates
 subroutine check_module_names(model, error)
     type(fpm_model_t), intent(in) :: model
     type(error_t), allocatable, intent(out) :: error
-    integer :: i,j,k,l,m
+    integer :: k,l,m
     logical :: valid,errors_found,enforce_this_file
     type(string_t) :: package_name,module_name,package_prefix
 
@@ -617,29 +616,29 @@ subroutine cmd_run(settings,test)
             call fpm_stop(stat(firsterror),'*cmd_run*:stopping due to failed executions')
         end if
 
-    endif
+    end if
+
     contains
+
     subroutine compact_list_all()
     integer, parameter :: LINE_WIDTH = 80
-    integer :: i, j, nCol
-        j = 1
+    integer :: ii, jj, nCol
+        jj = 1
         nCol = LINE_WIDTH/col_width
         write(stderr,*) 'Available names:'
-        do i=1,size(targets)
+        do ii=1,size(targets)
 
-            exe_target => targets(i)%ptr
+            exe_target => targets(ii)%ptr
 
             if (exe_target%target_type == FPM_TARGET_EXECUTABLE .and. &
                 allocated(exe_target%dependencies)) then
 
                 exe_source => exe_target%dependencies(1)%ptr%source
 
                 if (exe_source%unit_scope == run_scope) then
-
-                    write(stderr,'(A)',advance=(merge("yes","no ",modulo(j,nCol)==0))) &
+                    write(stderr,'(A)',advance=(merge("yes","no ",modulo(jj,nCol)==0))) &
                         & [character(len=col_width) :: basename(exe_target%output_file, suffix=.false.)]
-                    j = j + 1
-
+                    jj = jj + 1
                 end if
             end if
         end do
@@ -648,15 +647,15 @@ end subroutine compact_list_all
 
     subroutine compact_list()
     integer, parameter :: LINE_WIDTH = 80
-    integer :: i, j, nCol
-        j = 1
+    integer :: ii, jj, nCol
+        jj = 1
         nCol = LINE_WIDTH/col_width
         write(stderr,*) 'Matched names:'
-        do i=1,size(executables)
-            write(stderr,'(A)',advance=(merge("yes","no ",modulo(j,nCol)==0))) &
-                & [character(len=col_width) :: basename(executables(i)%s, suffix=.false.)]
-            j = j + 1
-        enddo
+        do ii=1,size(executables)
+            write(stderr,'(A)',advance=(merge("yes","no ",modulo(jj,nCol)==0))) &
+                & [character(len=col_width) :: basename(executables(ii)%s, suffix=.false.)]
+            jj = jj + 1
+        end do
         write(stderr,*)
     end subroutine compact_list
 

src/fpm/cmd/update.f90

@@ -24,15 +24,13 @@ subroutine cmd_update(settings)
     call get_package_data(package, "fpm.toml", error, apply_defaults=.true.)
     call handle_error(error)
 
-    if (.not.exists("build")) then
+    if (.not. exists("build")) then
       call mkdir("build")
       call filewrite(join_path("build", ".gitignore"),["*"])
     end if
 
     cache = join_path("build", "cache.toml")
-    if (settings%clean) then
-      call delete_file(cache)
-    end if
+    if (settings%clean) call delete_file(cache)
 
     call new_dependency_tree(deps, cache=cache, &
       verbosity=merge(2, 1, settings%verbose))

src/fpm/dependency.f90

@@ -123,7 +123,9 @@ module fpm_dependency
     type(dependency_node_t), allocatable :: dep(:)
     !> Cache file
     character(len=:), allocatable :: cache
+
   contains
+
     !> Overload procedure to add new dependencies to the tree
     generic :: add => add_project, add_project_dependencies, add_dependencies, &
       add_dependency, add_dependency_node
@@ -194,13 +196,9 @@ subroutine new_dependency_tree(self, verbosity, cache)
     call resize(self%dep)
     self%dep_dir = join_path("build", "dependencies")
 
-    if (present(verbosity)) then
-      self%verbosity = verbosity
-    end if
+    if (present(verbosity)) self%verbosity = verbosity
 
-    if (present(cache)) then
-      self%cache = cache
-    end if
+    if (present(cache)) self%cache = cache
 
   end subroutine new_dependency_tree
 
@@ -311,15 +309,15 @@ subroutine add_project(self, package, error)
 
     ! After resolving all dependencies, check if we have cached ones to avoid updates
     if (allocated(self%cache)) then
-      call new_dependency_tree(cached, verbosity=self%verbosity,cache=self%cache)
+      call new_dependency_tree(cached, verbosity=self%verbosity, cache=self%cache)
       call cached%load(self%cache, error)
       if (allocated(error)) return
 
       ! Skip root node
-      do id=2,cached%ndep
-          cached%dep(id)%cached = .true.
-          call self%add(cached%dep(id), error)
-          if (allocated(error)) return
+      do id = 2, cached%ndep
+        cached%dep(id)%cached = .true.
+        call self%add(cached%dep(id), error)
+        if (allocated(error)) return
       end do
     end if
 
@@ -443,13 +441,13 @@ subroutine add_dependency_node(self, dependency, error)
       ! the manifest has priority
       if (dependency%cached) then
         if (dependency_has_changed(dependency, self%dep(id), self%verbosity, self%unit)) then
-           if (self%verbosity>0) write (self%unit, out_fmt) "Dependency change detected:", dependency%name
-           self%dep(id)%update = .true.
+          if (self%verbosity > 0) write (self%unit, out_fmt) "Dependency change detected:", dependency%name
+          self%dep(id)%update = .true.
         else
-           ! Store the cached one
-           self%dep(id) = dependency
-           self%dep(id)%update = .false.
-        endif
+          ! Store the cached one
+          self%dep(id) = dependency
+          self%dep(id)%update = .false.
+        end if
       end if
     else
       ! New dependency: add from scratch
@@ -498,7 +496,7 @@ subroutine update_dependency(self, name, error)
 
     associate (dep => self%dep(id))
       if (allocated(dep%git) .and. dep%update) then
-        if (self%verbosity>0) write (self%unit, out_fmt) "Update:", dep%name
+        if (self%verbosity > 0) write (self%unit, out_fmt) "Update:", dep%name
         proj_dir = join_path(self%dep_dir, dep%name)
         call dep%git%checkout(proj_dir, error)
         if (allocated(error)) return
@@ -722,7 +720,7 @@ subroutine check_and_read_pkg_data(json, node, download_url, version, error)
     character(:), allocatable :: version_key, version_str, error_message, namespace, name
 
     namespace = ""
-    name      = "UNNAMED_NODE"
+    name = "UNNAMED_NODE"
     if (allocated(node%namespace)) namespace = node%namespace
     if (allocated(node%name)) name = node%name
 
@@ -1199,27 +1197,27 @@ logical function dependency_has_changed(cached, manifest, verbosity, iunit) resu
     !> may not have it
     if (allocated(cached%version) .and. allocated(manifest%version)) then
       if (cached%version /= manifest%version) then
-         if (verbosity>1) write(iunit,out_fmt) "VERSION has changed: "//cached%version%s()//" vs. "//manifest%version%s()
-         return
-      endif
+        if (verbosity > 1) write (iunit, out_fmt) "VERSION has changed: "//cached%version%s()//" vs. "//manifest%version%s()
+        return
+      end if
     else
-       if (verbosity>1) write(iunit,out_fmt) "VERSION has changed presence "
+      if (verbosity > 1) write (iunit, out_fmt) "VERSION has changed presence "
     end if
     if (allocated(cached%revision) .and. allocated(manifest%revision)) then
       if (cached%revision /= manifest%revision) then
-        if (verbosity>1) write(iunit,out_fmt) "REVISION has changed: "//cached%revision//" vs. "//manifest%revision
+        if (verbosity > 1) write (iunit, out_fmt) "REVISION has changed: "//cached%revision//" vs. "//manifest%revision
         return
-      endif
+      end if
     else
-      if (verbosity>1) write(iunit,out_fmt) "REVISION has changed presence "
+      if (verbosity > 1) write (iunit, out_fmt) "REVISION has changed presence "
     end if
     if (allocated(cached%proj_dir) .and. allocated(manifest%proj_dir)) then
       if (cached%proj_dir /= manifest%proj_dir) then
-        if (verbosity>1) write(iunit,out_fmt) "PROJECT DIR has changed: "//cached%proj_dir//" vs. "//manifest%proj_dir
+        if (verbosity > 1) write (iunit, out_fmt) "PROJECT DIR has changed: "//cached%proj_dir//" vs. "//manifest%proj_dir
         return
-      endif
+      end if
     else
-      if (verbosity>1) write(iunit,out_fmt) "PROJECT DIR has changed presence "
+      if (verbosity > 1) write (iunit, out_fmt) "PROJECT DIR has changed presence "
     end if
 
     !> All checks passed: the two dependencies have no differences

src/fpm_filesystem.F90

@@ -76,7 +76,9 @@ subroutine env_variable(var, name)
 end subroutine env_variable
 
 
-!> Extract filename from path with/without suffix
+!> Extract filename from path with or without suffix.
+!>
+!> The suffix is included by default.
 function basename(path,suffix) result (base)
 
     character(*), intent(In) :: path

src/fpm_settings.f90

@@ -4,13 +4,14 @@ module fpm_settings
   use fpm_environment, only: os_is_unix
   use fpm_error, only: error_t, fatal_error
   use fpm_toml, only: toml_table, toml_error, toml_stat, get_value, toml_load, check_keys
-  use fpm_os, only: get_current_directory, change_directory, get_absolute_path, &
-                    convert_to_absolute_path
+  use fpm_os, only: get_current_directory, change_directory, get_absolute_path, convert_to_absolute_path
+
   implicit none
   private
   public :: fpm_global_settings, get_global_settings, get_registry_settings, official_registry_base_url
 
   character(*), parameter :: official_registry_base_url = 'https://registry-apis.vercel.app'
+  character(*), parameter :: default_config_file_name = 'config.toml'
 
   type :: fpm_global_settings
     !> Path to the global config file excluding the file name.
@@ -20,7 +21,7 @@ module fpm_settings
     !> Registry configs.
     type(fpm_registry_settings), allocatable :: registry_settings
   contains
-    procedure :: has_custom_location, full_path
+    procedure :: has_custom_location, full_path, path_to_config_folder_or_empty
   end type
 
   type :: fpm_registry_settings
@@ -56,8 +57,8 @@ subroutine get_global_settings(global_settings, error)
     ! Use custom path to the config file if it was specified.
     if (global_settings%has_custom_location()) then
       ! Throw error if folder doesn't exist.
-      if (.not. exists(config_path(global_settings))) then
-        call fatal_error(error, "Folder not found: '"//config_path(global_settings)//"'."); return
+      if (.not. exists(global_settings%path_to_config_folder)) then
+        call fatal_error(error, "Folder not found: '"//global_settings%path_to_config_folder//"'."); return
       end if
 
       ! Throw error if the file doesn't exist.
@@ -77,7 +78,7 @@ subroutine get_global_settings(global_settings, error)
       end if
 
       ! Use default file name.
-      global_settings%config_file_name = 'config.toml'
+      global_settings%config_file_name = default_config_file_name
 
       ! Apply default registry settings and return if config file doesn't exist.
       if (.not. exists(global_settings%full_path())) then
@@ -105,8 +106,7 @@ subroutine get_global_settings(global_settings, error)
     else
       call use_default_registry_settings(global_settings)
     end if
-
-  end subroutine get_global_settings
+  end
 
   !> Default registry settings are typically applied if the config file doesn't exist or no registry table was found in
   !> the global config file.
@@ -115,9 +115,9 @@ subroutine use_default_registry_settings(global_settings)
 
     allocate (global_settings%registry_settings)
     global_settings%registry_settings%url = official_registry_base_url
-    global_settings%registry_settings%cache_path = join_path(config_path(global_settings), &
+    global_settings%registry_settings%cache_path = join_path(global_settings%path_to_config_folder_or_empty(), &
     & 'dependencies')
-  end subroutine use_default_registry_settings
+  end
 
   !> Read registry settings from the global config file.
   subroutine get_registry_settings(table, global_settings, error)
@@ -155,7 +155,7 @@ subroutine get_registry_settings(table, global_settings, error)
         global_settings%registry_settings%path = path
       else
         ! Get canonical, absolute path on both Unix and Windows.
-        call get_absolute_path(join_path(config_path(global_settings), path), &
+        call get_absolute_path(join_path(global_settings%path_to_config_folder_or_empty(), path), &
         & global_settings%registry_settings%path, error)
         if (allocated(error)) return
 
@@ -201,45 +201,44 @@ subroutine get_registry_settings(table, global_settings, error)
         if (.not. exists(cache_path)) call mkdir(cache_path)
         global_settings%registry_settings%cache_path = cache_path
       else
-        cache_path = join_path(config_path(global_settings), cache_path)
+        cache_path = join_path(global_settings%path_to_config_folder_or_empty(), cache_path)
         if (.not. exists(cache_path)) call mkdir(cache_path)
         ! Get canonical, absolute path on both Unix and Windows.
         call get_absolute_path(cache_path, global_settings%registry_settings%cache_path, error)
         if (allocated(error)) return
       end if
     else if (.not. allocated(path)) then
-       global_settings%registry_settings%cache_path = join_path(config_path(global_settings), &
-    &    'dependencies')
+      global_settings%registry_settings%cache_path = &
+        join_path(global_settings%path_to_config_folder_or_empty(), 'dependencies')
     end if
-  end subroutine get_registry_settings
+  end
 
   !> True if the global config file is not at the default location.
-  pure logical function has_custom_location(self)
+  elemental logical function has_custom_location(self)
     class(fpm_global_settings), intent(in) :: self
 
     has_custom_location = allocated(self%path_to_config_folder) .and. allocated(self%config_file_name)
-    if (.not.has_custom_location) return
-    has_custom_location = len_trim(self%path_to_config_folder)>0 .and. len_trim(self%config_file_name)>0
-  end function
+    if (.not. has_custom_location) return
+    has_custom_location = len_trim(self%path_to_config_folder) > 0 .and. len_trim(self%config_file_name) > 0
+  end
 
   !> The full path to the global config file.
   function full_path(self) result(result)
     class(fpm_global_settings), intent(in) :: self
     character(len=:), allocatable :: result
 
-    result = join_path(config_path(self), self%config_file_name)
-  end function
+    result = join_path(self%path_to_config_folder_or_empty(), self%config_file_name)
+  end
 
   !> The path to the global config directory.
-  function config_path(self)
+  pure function path_to_config_folder_or_empty(self)
     class(fpm_global_settings), intent(in) :: self
-    character(len=:), allocatable :: config_path
+    character(len=:), allocatable :: path_to_config_folder_or_empty
 
     if (allocated(self%path_to_config_folder)) then
-        config_path = self%path_to_config_folder
+      path_to_config_folder_or_empty = self%path_to_config_folder
     else
-        config_path = ""
+      path_to_config_folder_or_empty = ""
     end if
-  end function config_path
-
-end module fpm_settings
+  end
+end