xmsgsdiff

#!/usr/bin/env python
"""
..
    Copyright: LeafLabs, LLC, 2014
    License: MIT License
    Author: bnewbold@leaflabs.com
    Date: Feb 2014

Diff utility with filtering for, eg, comparing the number of warnings and
errors between successive bitfile builds.

Call with --help for usage info.
"""

from __future__ import print_function
import argparse
import sys

from xmsgs import *


# ========== Script/Args =========== #
def main():
    parser = argparse.ArgumentParser(
        description="Shows the diff! Of the things!",
        usage="%(prog)s [options]")
    parser.add_argument('-f', '--full', action="store_true",
        help="display full output")
    parser.add_argument('-e', '--everything', action="store_true",
        help="very verbose output, showing metadata for each message")
    parser.add_argument('-b', '--by-file', action="store_true",
        help="Display outputs by filename")
    parser.add_argument('-s', '--skip-paths', nargs="+",
        help="Skip paths (can be globs)")
    parser.add_argument('--show-path', action="store_true",
        help="show file paths (when possible); implies --full")
    parser.add_argument('before_file', type=str,
        help="")
    parser.add_argument('after_file', type=str,
        help="")
    parser.add_argument('-i', '--ignore', nargs="+", type=int,
        help="list of warnings to ignore (integers)")
    parser.add_argument('-t', '--types', nargs="+", type=str,
        help="list of types to handle (error, warning, info, severe)")

    args = parser.parse_args()

    xmsgs_configure(
        disable_color=(not os.isatty(sys.stdout.fileno())),
        ignore_list=args.ignore,
        types=args.types,
        skip_paths=args.skip_paths)

    if os.path.isdir(args.before_file):
        # if we got an empty directory, poke around for subdirectories
        before_files = glob.glob(args.before_file + "/*.xmsgs")
        if len(before_files) == 0:
            before_files = glob.glob(args.before_file + "/_xmsgs/*.xmsgs")
        if len(before_files) == 0:
            before_files = glob.glob(args.before_file + "/logs/*.xmsgs")
        if len(before_files) == 0:
            print("No 'before' files found.")
            return
    else:
        before_files = [args.before_file, ]

    if os.path.isdir(args.after_file):
        after_files = glob.glob(args.after_file + "/*.xmsgs")
        if len(after_files) == 0:
            after_files = glob.glob(args.after_file + "/_xmsgs/*.xmsgs")
        if len(after_files) == 0:
            after_files = glob.glob(args.after_file + "/logs/*.xmsgs")
        if len(after_files) == 0:
            print("No 'after' files found.")
            return
    else:
        after_files = [args.after_file, ]

    (add, remove, counts) = parse_diff(before_files, after_files)

    printargs = dict(
        everything=args.everything,
        full=(args.full or args.show_path),
        show_path=args.show_path,
    )

    if args.by_file:
        print_by_file(add, remove, **printargs)
    else:
        print_msgs(remove, 'remove', **printargs)
        print_msgs(add, 'add', **printargs)
    print_counts(counts, diff=True)

if __name__ == '__main__':
    main()