mirror of
https://github.com/janeczku/calibre-web
synced 2024-12-01 05:49:58 +00:00
128 lines
5.2 KiB
Python
128 lines
5.2 KiB
Python
import os
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import re
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import sys
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import json
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from .constants import BASE_DIR
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try:
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from importlib.metadata import version
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importlib = True
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ImportNotFound = BaseException
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except ImportError:
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importlib = False
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version = None
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if not importlib:
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try:
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import pkg_resources
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from pkg_resources import DistributionNotFound as ImportNotFound
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pkgresources = True
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except ImportError as e:
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pkgresources = False
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def load_dependencies(optional=False):
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deps = list()
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if getattr(sys, 'frozen', False):
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pip_installed = os.path.join(BASE_DIR, ".pip_installed")
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if os.path.exists(pip_installed):
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with open(pip_installed) as f:
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exe_deps = json.loads("".join(f.readlines()))
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else:
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return deps
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if importlib or pkgresources:
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if optional:
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req_path = os.path.join(BASE_DIR, "optional-requirements.txt")
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else:
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req_path = os.path.join(BASE_DIR, "requirements.txt")
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if os.path.exists(req_path):
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with open(req_path, 'r') as f:
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for line in f:
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if not line.startswith('#') and not line == '\n' and not line.startswith('git'):
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res = re.match(r'(.*?)([<=>\s]+)([\d\.]+),?\s?([<=>\s]+)?([\d\.]+)?(?:\s?;\s?'
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r'(?:(python_version)\s?([<=>]+)\s?\'([\d\.]+)\'|'
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r'(sys_platform)\s?([\!=]+)\s?\'([\w]+)\'))?', line.strip())
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try:
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if res.group(7) and res.group(8):
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val = res.group(8).split(".")
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if not eval(str(sys.version_info[0]) + "." + "{:02d}".format(sys.version_info[1]) +
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res.group(7) + val[0] + "." + "{:02d}".format(int(val[1]))):
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continue
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elif res.group(10) and res.group(11):
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# only installed if platform is eqal, don't check if platform is not equal
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if res.group(10) == "==":
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if sys.platform != res.group(11):
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continue
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# installed if platform is not eqal, don't check if platform is equal
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elif res.group(10) == "!=":
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if sys.platform == res.group(11):
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continue
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if getattr(sys, 'frozen', False):
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dep_version = exe_deps[res.group(1).lower().replace('_', '-')]
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else:
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if importlib:
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dep_version = version(res.group(1))
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else:
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dep_version = pkg_resources.get_distribution(res.group(1)).version
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except (ImportNotFound, KeyError):
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if optional:
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continue
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dep_version = "not installed"
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deps.append([dep_version, res.group(1), res.group(2), res.group(3), res.group(4), res.group(5)])
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return deps
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def dependency_check(optional=False):
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d = list()
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dep_version_int = None
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low_check = None
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deps = load_dependencies(optional)
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for dep in deps:
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try:
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dep_version_int = [int(x) if x.isnumeric() else 0 for x in dep[0].split('.')[:3]]
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low_check = [int(x) for x in dep[3].split('.')]
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high_check = [int(x) for x in dep[5].split('.')]
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except AttributeError:
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high_check = []
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except ValueError:
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d.append({'name': dep[1],
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'target': "available",
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'found': "Not available"
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})
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continue
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if dep[2].strip() == "==":
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if dep_version_int != low_check:
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d.append({'name': dep[1],
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'found': dep[0],
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"target": dep[2] + dep[3]})
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continue
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elif dep[2].strip() == ">=":
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if dep_version_int < low_check:
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d.append({'name': dep[1],
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'found': dep[0],
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"target": dep[2] + dep[3]})
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continue
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elif dep[2].strip() == ">":
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if dep_version_int <= low_check:
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d.append({'name': dep[1],
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'found': dep[0],
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"target": dep[2] + dep[3]})
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continue
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if dep[4] and dep[5]:
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if dep[4].strip() == "<":
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if dep_version_int >= high_check:
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d.append(
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{'name': dep[1],
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'found': dep[0],
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"target": dep[4] + dep[5]})
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continue
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elif dep[4].strip() == "<=":
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if dep_version_int > high_check:
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d.append(
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{'name': dep[1],
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'found': dep[0],
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"target": dep[4] + dep[5]})
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continue
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return d
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