fort_depend.py

A python script to generate Fortran dependencies

Original script by D. Dickinson

Usage

Here's an example of how to use fort_depend.py in your makefiles.

Input parameters:

-f --files Files to process

-o --output Output file

-v -vv -vvv Different level of verbosity contained in standard output

-w --overwrite Overwrite output file without warning

-r --root_dir Project root directory

-d --dep_dir List of selected dependecy directories

For bigger project example, look at Makefiles, rule.mk, src_dir_path.mk and other files in fll project at https://github.com/libm3l/fll which is a linked list library written in Fortran and which uses this script to get fortran project dependencies

========================= MAKEFILE EXAMPLE ===================

# Script to generate the dependencies
#  for example - look into www.github.com/libm3l/fll project
#
#  specify location of fort_depend.py script
#
MAKEDEPEND=/path_to/fort_depend.py
#
#  The PROJ_ROOT_PATH specifies the common directory for all the project subdirectories
#  specify location of fortran project root directory
#  the script can now make dependencies for project with source
#  files located in different subdirectories directories in the project root directory. 
#  The script lops over all of them finding dependencies for all fortran files 
#  use option --root_dir
#
PROJ_ROOT_PATH =/path/to_proj_root_dir
#
#  specify selected path for dependency search, ie. for big projects, rather then search through all directories in PROJ_ROOT_PATH
#  you can specify those directories which will be searched for dependencies are located
#  if not specified, the script will be searching through entire tree. For bigger projects this may lead to longer time while 
#  looking for dependencies
#  use option --dep_dir
#

# $(DEP_FILE) is a .dep file generated by fort_depend.py
DEP_FILE = my_project.dep

# Source files to compile
# You can specify all .f90 files
FFILES= $(notdir $(wildcard $(srcdir)/*.f90))
# or you can specify names of the files directly
FFILES = mod_file1.f90 \
         mod_file2.f90

#
# files specified in FFILES are dependent on files located in directory ../data_util and ../../util
# if not specified, the sript looks for all files in  PROJ_ROOT_PATH
FMODDIRS= \
../data_util \
../../util \

# Make sure everything depends on the .dep file
all: $(actual_executable) $(DEP_FILE)

# Make dependencies
.PHONY: depend
depend: $(DEP_FILE)

# The .dep file depends on the source files, so it automatically gets updated
# when you change your source
$(DEP_FILE): $(OBJECTS)
    @echo "Making dependencies!"
    cd $(srcdir) && $(MAKEDEPEND) -r  $(PROJ_ROOT_PATH)  -d $(FMODDIRS) -v w -o $(srcdir)/$(DEP_FILE) -f $(FFILES)
    
-include $(DEP_FILE)