gitlog-to-changelog: Drop scripts in favour of gnulib version

The ChangeLog automation scripts were incorporated in gnulib as
vcs-to-changelog for a while now since other projects expressed the
desire to use and extend this script.  In the interest of avoiding
duplication of code, drop the glibc version of gitlog-to-changelog and
use the gnulib one directly.

The only file that remains is vcstocl_quirks.py, which specifies
properties and quirks of the glibc project source code.  This patch
also drops the shebang at the start of vcstocl_quirks.py since the
file is not intended to be directly executable.

1 files changed, 0 insertions, 138 deletions

diff --git a/scripts/gitlog_to_changelog.py b/scripts/gitlog_to_changelog.py
deleted file mode 100755
index b7920aaf99..0000000000
--- a/scripts/gitlog_to_changelog.py
+++ /dev/null
@@ -1,138 +0,0 @@
-#!/usr/bin/python3
-# Main VCSToChangeLog script.
-# Copyright (C) 2019-2020 Free Software Foundation, Inc.
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-''' Generate a ChangeLog style output based on a VCS log.
-
-This script takes two revisions as input and generates a ChangeLog style output
-for all revisions between the two revisions.
-
-This script is intended to be executed from the project parent directory.
-
-The vcs_to_changelog directory has a file vcstocl_quirks.py that defines a
-function called get_project_quirks that returns a object of class type
-ProjectQuirks or a subclass of the same.  The definition of the ProjectQuirks
-class is below and it specifies the properties that the project must set to
-ensure correct parsing of its contents.
-
-Among other things, ProjectQurks specifies the VCS to read from; the default is
-assumed to be git.  The script then studies the VCS log and for each change,
-list out the nature of changes in the constituent files.
-
-Each file type may have parser frontends that can read files and construct
-objects that may be compared to determine the minimal changes that occured in
-each revision.  For files that do not have parsers, we may only know the nature
-of changes at the top level depending on the information that the VCS stores.
-
-The parser frontend must have a compare() method that takes the old and new
-files as arrays of strings and prints the output in ChangeLog format.
-
-Currently implemented VCS:
-
-    git
-
-Currently implemented frontends:
-
-    C
-'''
-import sys
-import os
-import re
-import argparse
-from vcs_to_changelog.misc_util import *
-from vcs_to_changelog import frontend_c
-from vcs_to_changelog.vcs_git import *
-
-debug = DebugUtil(False)
-
-class ProjectQuirks:
-    # This is a list of regex substitutions for C/C++ macros that are known to
-    # break parsing of the C programs.  Each member of this list is a dict with
-    # the key 'orig' having the regex and 'sub' having the substitution of the
-    # regex.
-    MACRO_QUIRKS = []
-
-    # This is a list of macro definitions that are extensively used and are
-    # known to break parsing due to some characteristic, mainly the lack of a
-    # semicolon at the end.
-    C_MACROS = []
-
-    # The repo type, defaults to git.
-    repo = 'git'
-
-    # List of files to ignore either because they are not needed (such as the
-    # ChangeLog) or because they are non-parseable.  For example, glibc has a
-    # header file that is only assembly code, which breaks the C parser.
-    IGNORE_LIST = ['ChangeLog']
-
-
-# Load quirks file.  We assume that the script is run from the top level source
-# directory.
-sys.path.append('/'.join([os.getcwd(), 'scripts', 'vcs_to_changelog']))
-try:
-    from vcstocl_quirks import *
-    project_quirks = get_project_quirks(debug)
-except:
-    project_quirks = ProjectQuirks()
-
-def analyze_diff(filename, oldfile, newfile, frontends):
-    ''' Parse the output of the old and new files and print the difference.
-
-    For input files OLDFILE and NEWFILE with name FILENAME, generate reduced
-    trees for them and compare them.  We limit our comparison to only C source
-    files.
-    '''
-    name, ext = os.path.splitext(filename)
-
-    if not ext in frontends.keys():
-        return None
-    else:
-        frontend = frontends[ext]
-        frontend.compare(oldfile, newfile)
-
-
-def main(repo, frontends, refs):
-    ''' ChangeLog Generator Entry Point.
-    '''
-    commits = repo.list_commits(args.refs)
-    for commit in commits:
-        repo.list_changes(commit, frontends)
-
-
-if __name__ == '__main__':
-    parser = argparse.ArgumentParser()
-
-    parser.add_argument('refs', metavar='ref', type=str, nargs=2,
-                     help='Refs to print ChangeLog entries between')
-
-    parser.add_argument('-d', '--debug', required=False, action='store_true',
-                     help='Run the file parser debugger.')
-
-    args = parser.parse_args()
-
-    debug.debug = args.debug
-
-    if len(args.refs) < 2:
-        debug.eprint('Two refs needed to get a ChangeLog.')
-        sys.exit(os.EX_USAGE)
-
-    REPO = {'git': GitRepo(project_quirks.IGNORE_LIST, debug)}
-
-    fe_c = frontend_c.Frontend(project_quirks, debug)
-    FRONTENDS = {'.c': fe_c,
-                 '.h': fe_c}
-
-    main(REPO[project_quirks.repo], FRONTENDS, args.refs)