crates.io: skip pre-releases, list option

This adds a `use_pre_release` option and adds support for list option for crates.io, similar to PyPI.

docs/usage.rst

@@ -661,6 +661,11 @@ Check `crates.io <https://crates.io/>`_ for updates.
 cratesio
   The crate name on crates.io, e.g. ``tokio``.
 
+use_pre_release
+  Whether to accept pre release. Default is false.
+
+This source supports :ref:`list options`.
+
 Check Local Pacman Database
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~
 ::

nvchecker_source/cratesio.py

@@ -1,15 +1,40 @@
 # MIT licensed
 # Copyright (c) 2013-2020 lilydjwg <lilydjwg@gmail.com>, et al.
 
+import re
+
+import structlog
+
 from nvchecker.api import RichResult
 
+logger = structlog.get_logger(logger_name=__name__)
+
+
 API_URL = 'https://crates.io/api/v1/crates/%s'
+# https://semver.org/#is-there-a-suggested-regular-expression-regex-to-check-a-semver-string
+VERSION_PATTERN = r'^(?P<major>0|[1-9]\d*)\.(?P<minor>0|[1-9]\d*)\.(?P<patch>0|[1-9]\d*)(?:-(?P<prerelease>(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+(?P<buildmetadata>[0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$'
+
 
 async def get_version(name, conf, *, cache, **kwargs):
   name = conf.get('cratesio') or name
+  use_pre_release = conf.get('use_pre_release', False)
   data = await cache.get_json(API_URL % name)
-  version = [v['num'] for v in data['versions'] if not v['yanked']][0]
-  return RichResult(
-    version = version,
-    url = f'https://crates.io/crates/{name}/{version}',
-  )
+  results = []
+  for v in data['versions']:
+    if v['yanked']:
+      continue
+    version = v['num']
+    match = re.fullmatch(VERSION_PATTERN, version)
+    if match is None:
+      logger.warning('ignoring invalid version', version=version)
+      continue
+    if not use_pre_release and match.group('prerelease'):
+      continue
+    results.append(
+      RichResult(
+        version=version,
+        url=f'https://crates.io/crates/{name}/{version}',
+      )
+    )
+
+  return results

tests/test_cratesio.py

@@ -8,3 +8,23 @@ async def test_cratesio(get_version):
     assert await get_version("example", {
         "source": "cratesio",
     }) == "1.1.0"
+
+async def test_cratesio_list(get_version):
+    assert await get_version("example", {
+        "source": "cratesio",
+        "include_regex": r"^1\.0.*",
+    }) == "1.0.2"
+
+async def test_cratesio_skip_prerelease(get_version):
+    with pytest.raises(RuntimeError, match='include_regex matched no versions'):
+        await get_version("cargo-lock", {
+            "source": "cratesio",
+            "include_regex": r".*-.*",
+        })
+
+async def test_cratesio_use_prerelease(get_version):
+    await get_version("cargo-lock", {
+        "source": "cratesio",
+        "use_pre_release": "true",
+        "include_regex": r".*-.*",
+    })