| 1 | #!/usr/bin/env python3 |
| 2 | """Check if a given distro is going to be EOL soon. |
| 3 | |
| 4 | This queries the public API of https://endoflife.date to fetch EOL dates. |
| 5 | |
| 6 | 'soon' is defined by LEAD_DAYS, currently 30 days.""" |
| 7 | |
| 8 | import datetime |
| 9 | import json |
| 10 | import sys |
| 11 | import urllib.request |
| 12 | |
| 13 | URL_BASE = 'https://endoflife.date/api' |
| 14 | NOW = datetime.date.today() |
| 15 | LEAD_DAYS = datetime.timedelta(days=30) |
| 16 | |
| 17 | DISTRO = sys.argv[1] |
| 18 | RELEASE = sys.argv[2] |
| 19 | LTS = sys.argv[3] |
| 20 | |
| 21 | EXIT_NOT_IMPENDING = 0 |
| 22 | EXIT_IMPENDING = 1 |
| 23 | EXIT_NO_DATA = 2 |
| 24 | EXIT_FAILURE = 3 |
| 25 | |
| 26 | try: |
| 27 | with urllib.request.urlopen(f'{URL_BASE}/{DISTRO}/{RELEASE}.json') as response: |
| 28 | match response.status: |
| 29 | case 200: |
| 30 | data = json.load(response) |
| 31 | case _: |
| 32 | print( |
| 33 | f'Failed to retrieve data for {DISTRO} {RELEASE} ' + |
| 34 | f'(status: {response.status}).', |
| 35 | file=sys.stderr |
| 36 | ) |
| 37 | sys.exit(EXIT_FAILURE) |
| 38 | except urllib.error.HTTPError as e: |
| 39 | match e.code: |
| 40 | case 404: |
| 41 | print(f'No data available for {DISTRO} {RELEASE}.', file=sys.stderr) |
| 42 | sys.exit(EXIT_NO_DATA) |
| 43 | case _: |
| 44 | print( |
| 45 | f'Failed to retrieve data for {DISTRO} {RELEASE} ' + |
| 46 | f'(status: {e.code}).', |
| 47 | file=sys.stderr |
| 48 | ) |
| 49 | sys.exit(EXIT_FAILURE) |
| 50 | |
| 51 | if LTS == '1' and 'extendedSupport' in data: |
| 52 | ref = 'extendedSupport' |
| 53 | else: |
| 54 | ref = 'eol' |
| 55 | LTS = False |
| 56 | |
| 57 | # Handle boolean values for eol/extendedSupport fields |
| 58 | eol_value = data[ref] |
| 59 | |
| 60 | # Check if the value is a boolean |
| 61 | if isinstance(eol_value, bool): |
| 62 | if ref == 'eol': |
| 63 | if not eol_value: |
| 64 | # False for eol means no EOL date set (still actively supported) |
| 65 | sys.exit(EXIT_NOT_IMPENDING) |
| 66 | else: |
| 67 | # True for eol would mean EOL has occurred (unusual, but handle it) |
| 68 | # Without a date, we can't determine if it's within LEAD_DAYS |
| 69 | # Conservative approach: treat as impending |
| 70 | print(f'{DISTRO} {RELEASE} has reached EOL (boolean true)', file=sys.stderr) |
| 71 | sys.exit(EXIT_IMPENDING) |
| 72 | elif ref == 'extendedSupport': |
| 73 | if not eol_value: |
| 74 | # False for extendedSupport when LTS was requested is unexpected |
| 75 | print( |
| 76 | f'Unexpected value for {DISTRO} {RELEASE} extendedSupport: false ' + |
| 77 | '(LTS was requested but extended support is not available)', |
| 78 | file=sys.stderr |
| 79 | ) |
| 80 | sys.exit(EXIT_FAILURE) |
| 81 | else: |
| 82 | # True for extendedSupport means LTS available but date not determined |
| 83 | # Can't calculate if impending without a date |
| 84 | sys.exit(EXIT_NOT_IMPENDING) |
| 85 | |
| 86 | # If we get here, it should be a date string |
| 87 | try: |
| 88 | eol = datetime.date.fromisoformat(eol_value) |
| 89 | except (ValueError, TypeError): |
| 90 | print( |
| 91 | f'Invalid date format for {DISTRO} {RELEASE} {ref}: {eol_value}', |
| 92 | file=sys.stderr |
| 93 | ) |
| 94 | sys.exit(EXIT_FAILURE) |
| 95 | |
| 96 | offset = abs(eol - NOW) |
| 97 | |
| 98 | if offset <= LEAD_DAYS: |
| 99 | if LTS: |
| 100 | print(data['extendedSupport']) |
| 101 | else: |
| 102 | print(data['eol']) |
| 103 | |
| 104 | sys.exit(EXIT_IMPENDING) |
| 105 | else: |
| 106 | sys.exit(EXIT_NOT_IMPENDING) |