mp3-convert/convert.py at master · NathanPERIER/mp3-convert · GitHub

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#!/usr/bin/python3

import os
import sys
from collections import deque

from src.options import options as prog_options
from src.conversion import conversion
from src.metrics import ExitStatus
from src.metadata.keep import ConvertKeep


def help() :
    print(f"{sys.argv[0]} [--dry-run] [--no-remove] [--keep-threshold <keep>] [--default-keep <keep>] [--prometheus-metrics] [--metrics-path <dir>] <source> <destination>")


def main() :

    args = deque(sys.argv[1:])

    if len(args) > 0 and args[0] in ['-h', '--help'] :
        help()
        sys.exit(0)

    if len(args) > 0 and args[0] == '--dry-run' :
        prog_options.dry_run = True
        args.popleft()

    if len(args) > 0 and args[0] == '--no-remove' :
        prog_options.can_remove = False
        args.popleft()

    if len(args) > 1 and args[0] == '--keep-threshold' :
        args.popleft()
        keep_repr = args.popleft().lower()
        if keep_repr != 'all' :
            keep = ConvertKeep.parse(keep_repr)
            if keep == None :
                print(f"Bad keep threshold : {keep_repr}")
                sys.exit(1)
            prog_options.keep_treshold = keep

    if len(args) > 1 and args[0] == '--default-keep' :
        args.popleft()
        keep = ConvertKeep.parse(args.popleft().lower())
        if keep == None :
            print(f"Bad default Convert-Keep value : {keep_repr}")
            sys.exit(1)
        prog_options.default_keep = keep

    if len(args) > 0 and args[0] == '--prometheus-metrics' :
        args.popleft()
        prog_options.metrics_enabled = True

    if len(args) > 1 and args[0] == '--metrics-path' :
        args.popleft()
        prog_options.matrics_path = args.popleft()


    if len(args) != 2 :
        help()
        sys.exit(1)

    source_dir = args.popleft()
    dest_dir = args.popleft()

    if source_dir.endswith('/') :
        source_dir = source_dir[:-1]
    if dest_dir.endswith('/') :
        dest_dir = dest_dir[:-1]

    metrics = conversion(source_dir, dest_dir)

    print()
    if not prog_options.metrics_enabled :
        metrics.summary()
    elif prog_options.dry_run :
        print(' --- Metrics ---')
        metrics.print()
    else :
        metrics.summary()
        filepath = os.path.join(prog_options.matrics_path, 'mp3conv.prom')
        filepath_tmp = f"{filepath}.tmp"
        with open(filepath_tmp, 'w') as f :
            metrics.print(f)
        os.rename(filepath_tmp, filepath)

    if metrics.status != ExitStatus.SUCCESS :
        sys.exit(1)


if __name__== '__main__' :
    main()