From f2e0586eb9e8a76b77b26558aa1f3ce91b476686 Mon Sep 17 00:00:00 2001
From: fangjian <fangjian@DESKTOP-M2G25GR.localdomain>
Date: Wed, 31 Jan 2024 14:52:56 +0000
Subject: [PATCH] improve progress_bar

---
 src/CMakeLists.txt |  3 +--
 src/utility.F90    | 59 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 60 insertions(+), 2 deletions(-)

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 598e8dd..44555af 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -10,8 +10,8 @@ message(STATUS "UDF path: ${UDF_SRC}")
     
 add_executable(astr 
                     astr.F90
+                    ${UDF_SOURCE_FILES}
                     bc.F90
-                    CMakeLists.txt
                     cmdefne.F90
                     commarray.F90
                     comsolver.F90
@@ -42,7 +42,6 @@ add_executable(astr
                     tecio.F90
                     test.F90
                     thermchem.F90
-                    ${UDF_SOURCE_FILES}
                     utility.F90
                     vtkio.F90)
 
diff --git a/src/utility.F90 b/src/utility.F90
index a414afc..4c686dd 100644
--- a/src/utility.F90
+++ b/src/utility.F90
@@ -14,6 +14,65 @@ module utility
   contains
   !
   !+-------------------------------------------------------------------+
+  !| Progress indicators library.                                      |
+  !+-------------------------------------------------------------------+
+  !| CHANGE RECORD                                                     |
+  !| -------------                                                     |
+  !| 31-01-2024  | copied by J. Fang via:                              |
+  !| https://github.com/macie/fortran-libs                             |
+  !|  Maciej Żok, 2010 MIT License                                     |
+  !+-------------------------------------------------------------------+
+  subroutine progress_bar(iteration,maximum,info2show,barlength)
+     !
+     ! Prints progress bar.
+     !
+     ! Args: 
+     !     iteration - iteration number
+     !     maximum - total iterations
+     !     barlength - length of the bar
+     !   
+     ! use iso_fortran_env
+     integer,intent(in) :: iteration,maximum
+     character(len=*),intent(in),optional :: info2show
+     integer,intent(in),optional :: barlength
+     integer :: counter,nlength
+     integer :: done
+     real(4) :: perc
+     !
+     if(present(barlength)) then
+         nlength=barlength
+     else
+         nlength=10
+     endif
+     !
+     perc = 100.0*real(iteration)/real(maximum)
+     done = floor(perc/(100.0/real(nlength)))  ! mark length
+     !
+     write(6,'(1A1,A,A)',advance='no')char(13),info2show,'['
+     if (done .LE. 0) then
+         do counter = 1, nlength
+             write(6,'(1A1,A)',advance='no')'='
+         end do
+     else if ((done .GT. 0) .and. (done .LT. nlength)) then
+         do counter = 1, done
+             write(6,'(1A1,A)',advance='no')'>'
+         end do
+         do counter = done+1, nlength
+             write(6,'(1A1,A)',advance='no')'='
+         end do 
+     else
+         do counter = 1, nlength
+             write(6,'(1A1,A)',advance='no')'>'
+         end do
+     end if
+     write(6,'(A,F5.1,A)',advance='no')'] ',perc,'%'
+     !
+  end subroutine progress_bar
+  !+-------------------------------------------------------------------+
+  !| The end of the subroutine progress_bar.                           |
+  !+-------------------------------------------------------------------+
+  !
+  !+-------------------------------------------------------------------+
   !| This subroutine is used to report time cost by each subroutine.   |
   !+-------------------------------------------------------------------+
   !| note: should only be called from one rank, usually the root       |