CODESYS Forge

#!/usr/bin/python

#

# This module is a wrapper for a locally installed SVN command line client.

# It can be used to find URLs of CODESYS projects within a repository, or to

# checkout all files outside of CODESYS projects.

#

# - svn_list:

# a wrapper for the "svn list" command, supporting recursive lists

#

# - svn_get_directories_with_codesys_projects / svn_get_directories_without_codesys_projects:

# return directories with or without CODESYS projects. Can be used to find

# CODESYS library URLs in repositories.

#

# - svn_checkout_non_codesys:

# Checkout top-level directory w/o content.

# Then update all directories, which are not containing any CODESYS projects.

#

import subprocess

def svn_list(username, password, url, recursive=False):

    args = ""

    if recursive:

        args += " -R"

    cmd="svn list %s --username=%s --password=%s %s" % (args, username, password, url)

    p = subprocess.Popen(cmd, stdout=subprocess.PIPE, shell=True)

    (output, err) = p.communicate()

    entries = list()

    if "\n" in output.decode(encoding='utf-8', errors='strict'):

        entries = output.decode(encoding='utf-8', errors='strict').strip().replace("\r","").split("\n")

    return entries

def svn_get_directories_with_codesys_projects(username, password, url):

    allfiles = svn_list(username, password, url, True)

    codesys_projects = filter(lambda file: 'meta.profile' in file, allfiles)

    alldirs=list()

    for cp in codesys_projects:

        dirname = cp.replace("/meta.profile", "")

        alldirs.append(dirname)

    return alldirs

def svn_get_directories_without_codesys_projects(username, password, url):

    allfiles = svn_list(username, password, url, True)

    codesys_projects = filter(lambda file: 'meta.profile' in file, allfiles)

    # filter out all subdirectories of the directory containing 'meta.profile',

    # as well as all files (keep only directories)

    alldirs=allfiles

    for cp in codesys_projects:

        dirname = cp.replace("/meta.profile", "")

        alldirs = filter(lambda file: not file.startswith(dirname) and file.endswith('/'), alldirs)

    return alldirs

def svn_checkout_non_codesys(username, password, url, destination):

    dirs = svn_get_directories_without_codesys_projects(username, password, url)

    cmd="svn checkout --depth=empty --username=%s --password=%s %s %s" % (username, password, url, destination)

    p = subprocess.Popen(cmd, stdout=subprocess.PIPE, shell=True)

    (output, err) = p.communicate()

    if not err:

        for d in dirs:

            cmd="svn update --depth=files --username=%s --password=%s %s/%s" % (username, password, destination, d)

            p = subprocess.Popen(cmd, stdout=subprocess.PIPE, shell=True)

            (output, err) = p.communicate()