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#!/usr/bin/env python3
"""
Checks if a Cargo.toml file of a Rust Cargo package has
dependencies that could be updated. This is different from
'cargo update' which only performs updates that aren't
breaking according to semantic versioning.
Written by Martin Fischer <martin@push-f.com> and licensed under MIT.
"""
from multiprocessing.dummy import Pool
import toml
import requests
sess = requests.session()
sess.headers['user-agent'] = 'cargo_check.py'
tasks = []
with open('Cargo.toml') as f:
data = toml.load(f)
for name, info in data['dependencies'].items():
version = info if isinstance(info, str) else info.get('version')
tasks.append((name, version))
def check_package(info):
name, version = info
res = sess.get('https://crates.io/api/v1/crates/{}'.format(name))
all_versions = res.json()['versions']
# filter semantic versioning pre-releases
releases = [v for v in all_versions if not '-' in v['num']]
if len(releases) == 0:
print('[error] {}: all versions are pre-releases'.format(name))
return
latest_release = releases[0]
if latest_release['yanked']:
print('[error] {}: latest release was yanked'.format(name))
elif not latest_release['num'].startswith(version):
if not any([1 for v in all_versions if v['num'].startswith(version)]):
print('[error] {}: version {} does not exist'.format(name, version))
print(
'[outdated] {} ({}): {} is available'.format(
name, version, latest_release['num']
)
)
pool = Pool()
pool.map(check_package, tasks)
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