File: make-build-examples

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#!/usr/bin/env python3
#
# Copyright (C) 2009-2022 ABINIT Group (Yann Pouillon)
#
# This file is part of the ABINIT software package. For license information,
# please see the COPYING file in the top-level directory of the ABINIT source
# distribution.
#
from __future__ import print_function, division, absolute_import #, unicode_literals

try:
    from ConfigParser import ConfigParser
except ImportError:
    from configparser import ConfigParser
from time import gmtime,strftime

import os
import re
import sys

class MyConfigParser(ConfigParser):

  def optionxform(self,option):
    return str(option)



def key_is_ok(key):

  # Init keys to ignore
  cnf_ignore = ["status"]

  if ( key in cnf_ignore ):
    return False
  else:
    return True



# ---------------------------------------------------------------------------- #

#
# Main program
#

# Initial setup
my_name     = "make-build-examples"
my_configs  = ["config/specs/testfarm.conf"]
my_template = "doc/build/config-template.ac9"
my_outdir   = "doc/build/config-examples"
my_fbck     = "config/specs/fbversion.conf"

# Check if we are in the top of the ABINIT source tree
if ( not os.path.exists("configure.ac") or
     not os.path.exists("src/98_main/abinit.F90") ):
  print("%s: You must be in the top of an ABINIT source tree." % my_name)
  print("%s: Aborting now." % my_name)
  sys.exit(1)

# Check if we have a config file
for my_config in my_configs:
  if ( not os.path.exists(my_config) ):
    print("%s: Could not find config file (%s)." % (my_name,my_config))
    print("%s: Aborting now." % my_name)
    sys.exit(2)

# Check if we have a template
if ( os.path.exists(my_template) ):
  inp_data = open(my_template,"rt").readlines()
else:
  print("%s: Could not find template file (%s)." % (my_name,my_template))
  print("%s: Aborting now." % my_name)
  sys.exit(3)

# Check if we have a fallback config file
if ( os.path.exists(my_fbck) ):
  fcnf = MyConfigParser()
  fcnf.read(my_fbck)
  if len(fcnf.sections()) != 0:
     fbversion = '_'+fcnf.sections()[0]
  else:
     fbversion = ''
else:
  print("%s: Could not find fbversion file (%s)." % (my_name,my_fbck))
  print("%s: Aborting now." % my_name)
  sys.exit(4)

# What time is it?
now = strftime("%Y/%m/%d %H:%M:%S +0000",gmtime())

# Prepare the storage space
if ( not os.path.exists(my_outdir) ):
  os.makedirs(my_outdir)
for old_ex in os.listdir(my_outdir):
  item = os.path.join(my_outdir, old_ex)
  #print("Removing item:", item)
  if os.path.isdir(item):
    if os.listdir(item) != 0:
        raise RuntimeError("Cannot remove non-empty directory:", item)
    os.rmdir(item)
  else:
    os.remove(item)

# Process config files and write examples
for my_config in my_configs:
  cnf = MyConfigParser()
  cnf.read(my_config)

  for sec in cnf.sections():
    cnf_vars = dict(cnf.items(sec))
    cnf_keys = list(cnf_vars.keys())
    cnf_keys.sort()
    out_data = ""

    # Uncomment variables in template data
    for line in inp_data:
      do_print = True
      for key in cnf_keys:
        if ( re.match("#%s=" % (key),line) or \
          (re.match("#fcflags_opt_",line) and re.match("fcflags_opt_",key)) ):
          if ( key_is_ok(key) ):
            out_data += "%s=\"%s\"\n" % (key,cnf_vars[key])
            do_print = False
      if ( do_print ):
        out_data += line

    # Inject fbversion in out_data
    out_data=out_data.replace("_FB_",fbversion)

    # Write data
    out_path = os.path.join(my_outdir, sec+".ac9")
    open(out_path, "wt").write(out_data)

    # FIXME: Create symbolic link until the test farm gets updated
    old_path = os.path.join(my_outdir, sec+".ac")
    if ( os.path.exists(old_path) or os.path.islink(old_path) ):
      os.remove(old_path)
    os.symlink(sec+".ac9", old_path)