Add support for cargo version range

src/univers/version_range.py

@@ -18,6 +18,7 @@
 from univers.utils import remove_spaces
 from univers.version_constraint import VersionConstraint
 from univers.version_constraint import contains_version
+from univers.versions import CargoVersion
 
 
 class InvalidVersionRange(Exception):
@@ -299,7 +300,8 @@ class NpmVersionRange(VersionRange):
         ">=": ">=",
         "<": "<",
         ">": ">",
-        "=": "=",  # This is not a native node-semver comparator, but is used in the gitlab version range for npm packages.
+        "=": "=",
+        # This is not a native node-semver comparator, but is used in the gitlab version range for npm packages.
     }
 
     @classmethod
@@ -797,7 +799,8 @@ class ComposerVersionRange(VersionRange):
         ">=": ">=",
         "<": "<",
         ">": ">",
-        "=": "=",  # This is not a native composer-semver comparator, but is used in the gitlab version range for composer packages.
+        "=": "=",
+        # This is not a native composer-semver comparator, but is used in the gitlab version range for composer packages.
     }
 
 
@@ -899,7 +902,8 @@ class GolangVersionRange(VersionRange):
         ">=": ">=",
         "<": "<",
         ">": ">",
-        "=": "=",  # This is not a native golang-semver comparator, but is used in the gitlab version range for go packages.
+        "=": "=",
+        # This is not a native golang-semver comparator, but is used in the gitlab version range for go packages.
     }
 
 
@@ -922,7 +926,86 @@ class HexVersionRange(VersionRange):
 
 class CargoVersionRange(VersionRange):
     scheme = "cargo"
-    version_class = versions.SemverVersion
+    version_class = versions.CargoVersion
+
+    @classmethod
+    def from_native(cls, string):
+        """
+        Return a VersionRange built from a scheme-specific, native version range
+        ``string``. Subclasses can implement.
+        """
+        if string == "*":
+            return cls(
+                constraints=(VersionConstraint(comparator="*", version_class=cls.version_class),)
+            )
+
+        constraints = []
+        cleaned_string = remove_spaces(string).lower()
+        for version in cleaned_string.split(","):
+            if not version:
+                raise InvalidVersionRange(f"InvalidVersionRange : {string}")
+
+            # wildcard
+            if "*" in version:
+                if "*" in version and not version.endswith("*") or constraints:
+                    raise InvalidVersionRange(
+                        f"Unsupported star in the middle of a version: it should be a trailing star only: {string}"
+                    )
+
+                if version.endswith(".*.*"):
+                    version = version.replace(".*.*", ".*")
+
+                segments_count = len(version.split("."))
+                lower_bound = cls.version_class(version.replace("*", "0"))
+                if segments_count == 2:
+                    upper_bound = cls.version_class(str(lower_bound.next_major()))
+                elif segments_count == 3:
+                    upper_bound = cls.version_class(str(lower_bound.next_minor()))
+                else:
+                    raise InvalidVersionRange(f"Invalid version: not a semver version: {string}")
+
+                vstart = VersionConstraint(comparator=">=", version=lower_bound)
+                vend = VersionConstraint(comparator="<", version=upper_bound)
+                constraints.extend([vstart, vend])
+
+            # caret
+            elif version.startswith("^"):
+                version = version.lstrip("^")
+                upper_bound = None
+                lower_bound = cls.version_class(version)
+                if (lower_bound.major != 0 or version == "0") and version != "0.0":
+                    upper_bound = cls.version_class(str(lower_bound.value.next_major()))
+                else:
+                    if lower_bound.minor != 0 or version == "0.0":
+                        upper_bound = cls.version_class(str(lower_bound.value.next_minor()))
+                    elif lower_bound.patch != 0:
+                        upper_bound = cls.version_class(str(lower_bound.value.next_patch()))
+
+                vstart = VersionConstraint(comparator=">=", version=lower_bound)
+                vend = VersionConstraint(comparator="<", version=upper_bound)
+                constraints.extend([vstart, vend])
+
+            # tilde
+            elif version.startswith("~"):
+                version = version.lstrip("~")
+                lower_bound = cls.version_class(version)
+                if lower_bound.minor == 0 and lower_bound.patch == 0:
+                    upper_bound = cls.version_class(str(lower_bound.value.next_major()))
+                else:
+                    upper_bound = cls.version_class(str(lower_bound.value.next_minor()))
+
+                vstart = VersionConstraint(comparator=">=", version=lower_bound)
+                vend = VersionConstraint(comparator="<", version=upper_bound)
+                constraints.extend([vstart, vend])
+
+            else:
+                comparator, version = VersionConstraint.split(version)
+                constraint = VersionConstraint(
+                    comparator=comparator, version=cls.version_class(version)
+                )
+                constraints.append(constraint)
+
+        return cls(constraints=tuple(constraints))
 
 
 class MozillaVersionRange(VersionRange):

src/univers/versions.py

@@ -25,6 +25,7 @@
 Each subclass primary responsibility to is be comparable and orderable
 """
 
+
 # TODO: Add mozilla versions https://github.com/mozilla-releng/mozilla-version
 # TODO: Add conda versions https://github.com/conda/conda/blob/master/conda/models/version.py
 #       and https://docs.conda.io/projects/conda-build/en/latest/resources/package-spec.html#build-version-spec
@@ -686,6 +687,10 @@ def bump(self, index):
         return self.value and self.value.bump(index)
 
 
+class CargoVersion(SemverVersion):
+    pass
+
+
 AVAILABLE_VERSIONS = [
     SemverVersion,
     GolangVersion,
@@ -702,4 +707,5 @@ def bump(self, index):
     OpensslVersion,
     LegacyOpensslVersion,
     AlpineLinuxVersion,
+    CargoVersion,
 ]

tests/test_cargo_version.ABOUT

@@ -0,0 +1,5 @@
+about_resource: |
+    test_cargo_version_range.py
+    test_cargo_version.py
+
+download_url: https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html

tests/test_cargo_version.py

@@ -0,0 +1,151 @@
+import pytest
+
+from univers.versions import CargoVersion
+
+
+def test_compare():
+    """
+    1.2.3  :=  >=1.2.3, <2.0.0
+    1.2    :=  >=1.2.0, <2.0.0
+    1      :=  >=1.0.0, <2.0.0
+    0.2.3  :=  >=0.2.3, <0.3.0
+    0.2    :=  >=0.2.0, <0.3.0
+    0.0.3  :=  >=0.0.3, <0.0.4
+    0.0    :=  >=0.0.0, <0.1.0
+    0      :=  >=0.0.0, <1.0.0
+    """
+
+    assert CargoVersion("1.2.3") >= CargoVersion("1.2.3")
+    assert CargoVersion("1.2.3") < CargoVersion("2.0.0")
+
+    assert CargoVersion("1.2") >= CargoVersion("1.2.0")
+    assert CargoVersion("1.2") < CargoVersion("2.0.0")
+
+    assert CargoVersion("1") >= CargoVersion("1.0.0")
+    assert CargoVersion("1") < CargoVersion("2.0.0")
+
+    assert CargoVersion("0.2.3") >= CargoVersion("0.2.3")
+    assert CargoVersion("0.2.3") < CargoVersion("0.3.0")
+
+    assert CargoVersion("0.2") >= CargoVersion("0.2.0")
+    assert CargoVersion("0.2") < CargoVersion("0.3.0")
+
+    assert CargoVersion("0.0.3") >= CargoVersion("0.0.3")
+    assert CargoVersion("0.0.3") < CargoVersion("0.0.4")
+
+    assert CargoVersion("0.0") >= CargoVersion("0.0.0")
+    assert CargoVersion("0.0") < CargoVersion("0.1.0")
+
+    assert CargoVersion("0") >= CargoVersion("0.0.0")
+    assert CargoVersion("0") < CargoVersion("1.0.0")
+
+
+version_list = [
+    ("1.2.3", 1, 2, 3, (), ()),
+    ("1.2.3-alpha1", 1, 2, 3, ("alpha1",), ()),
+    ("1.2.3+build5", 1, 2, 3, (), ("build5",)),
+    ("1.2.3+5build", 1, 2, 3, (), ("5build",)),
+    ("1.2.3-alpha1+build5", 1, 2, 3, ("alpha1",), ("build5",)),
+    (
+        "1.2.3-1.alpha1.9+build5.7.3aedf",
+        1,
+        2,
+        3,
+        (
+            "1",
+            "alpha1",
+            "9",
+        ),
+        (
+            "build5",
+            "7",
+            "3aedf",
+        ),
+    ),
+    (
+        "1.2.3-0a.alpha1.9+05build.7.3aedf",
+        1,
+        2,
+        3,
+        (
+            "0a",
+            "alpha1",
+            "9",
+        ),
+        (
+            "05build",
+            "7",
+            "3aedf",
+        ),
+    ),
+    (
+        "0.4.0-beta.1+0851523",
+        0,
+        4,
+        0,
+        (
+            "beta",
+            "1",
+        ),
+        ("0851523",),
+    ),
+    ("1.1.0-beta-10", 1, 1, 0, ("beta-10",), ()),
+]
+
+
+@pytest.mark.parametrize(
+    "version, expected_major, expected_minor, expected_patch, expected_prerelease, expected_build",
+    version_list,
+)
+def test_cargo(
+    version, expected_major, expected_minor, expected_patch, expected_prerelease, expected_build
+):
+    # https://github.com/dtolnay/semver/blob/master/tests/test_version.rs :
+    v1 = CargoVersion(version)
+    assert v1.major == expected_major
+    assert v1.minor == expected_minor
+    assert v1.patch == expected_patch
+    assert v1.prerelease == expected_prerelease
+    assert v1.build == expected_build
+
+
+def test_cargo1():
+    assert CargoVersion("1.2.3") == CargoVersion("1.2.3")
+    assert CargoVersion("1.2.3-alpha1") == CargoVersion("1.2.3-alpha1")
+    assert CargoVersion("1.2.3+build.42") == CargoVersion("1.2.3+build.42")
+    assert CargoVersion("1.2.3-alpha1+42") == CargoVersion("1.2.3-alpha1+42")
+    assert CargoVersion("0.0.0") != CargoVersion("0.0.1")
+    assert CargoVersion("0.0.0") != CargoVersion("0.1.0")
+    assert CargoVersion("0.0.0") != CargoVersion("1.0.0")
+    assert CargoVersion("1.2.3-alpha") != CargoVersion("1.2.3-beta")
+    assert CargoVersion("1.2.3+23") != CargoVersion("1.2.3+42")
+
+    assert CargoVersion("0.0.0") < CargoVersion("1.2.3-alpha2")
+    assert CargoVersion("1.0.0") < CargoVersion("1.2.3-alpha2")
+    assert CargoVersion("1.2.0") < CargoVersion("1.2.3-alpha2")
+    assert CargoVersion("1.2.3-alpha1") < CargoVersion("1.2.3")
+    assert CargoVersion("1.2.3-alpha1") < CargoVersion("1.2.3-alpha2")
+    assert not (CargoVersion("1.2.3-alpha2") < CargoVersion("1.2.3-alpha2"))
+    assert CargoVersion("1.2.3+23") < CargoVersion("1.2.3+42")
+
+    assert CargoVersion("0.0.0") <= CargoVersion("1.2.3-alpha2")
+    assert CargoVersion("1.0.0") <= CargoVersion("1.2.3-alpha2")
+    assert CargoVersion("1.2.0") <= CargoVersion("1.2.3-alpha2")
+    assert CargoVersion("1.2.3-alpha1") <= CargoVersion("1.2.3-alpha2")
+    assert CargoVersion("1.2.3-alpha2") <= CargoVersion("1.2.3-alpha2")
+    assert CargoVersion("1.2.3+23") <= CargoVersion("1.2.3+42")
+
+    assert CargoVersion("1.2.3-alpha2") > CargoVersion("0.0.0")
+    assert CargoVersion("1.2.3-alpha2") > CargoVersion("1.0.0")
+    assert CargoVersion("1.2.3-alpha2") > CargoVersion("1.2.0")
+    assert CargoVersion("1.2.3-alpha2") > CargoVersion("1.2.3-alpha1")
+    assert CargoVersion("1.2.3") > CargoVersion("1.2.3-alpha2")
+    assert not (CargoVersion("1.2.3-alpha2") > CargoVersion("1.2.3-alpha2"))
+    assert not (CargoVersion("1.2.3+23") > CargoVersion("1.2.3+42"))
+
+    assert CargoVersion("1.2.3-alpha2") >= CargoVersion("0.0.0")
+    assert CargoVersion("1.2.3-alpha2") >= CargoVersion("1.0.0")
+    assert CargoVersion("1.2.3-alpha2") >= CargoVersion("1.2.0")
+    assert CargoVersion("1.2.3-alpha2") >= CargoVersion("1.2.3-alpha1")
+    assert CargoVersion("1.2.3-alpha2") >= CargoVersion("1.2.3-alpha2")
+    assert not (CargoVersion("1.2.3+23") >= CargoVersion("1.2.3+42"))