cve-check: replace Looseversion with custom version class

The way distutils.version.LooseVersion compare version are tricky, it treat
all these ( "1.0-beta2", "1.0-rc1", "1.0A", "1.0p2" and "1.0pre1") as greater
version than "1.0". This might be right for "1.0A" and "1.0p1" but not for
the rest, also these version could be confusing, the "p" in "1.0p1" can be
"pre" or "patched" version or even other meaning.

Replace Looseversion with custom class, it uses regex to capture common
version format like "1.1.1" or tag format using date like "2020-12-12" as
release section, check for following known string/tags ( beta, rc, pre, dev,
alpha, preview) as pre-release section, any other trailing characters
are difficult to understand/define so ignore them. Compare release
section and pre-release section saperately.

included selftest for the version class.

[YOCTO#14127]

(From OE-Core rev: 294baea424472341d2ec880f13699076315d8274)

Signed-off-by: Lee Chee Yang <chee.yang.lee@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 6ced85e9ddd3569240f1e8b82130d1ac0fffbc40)
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 27 insertions, 0 deletions

diff --git a/meta/lib/oeqa/selftest/cases/cve_check.py b/meta/lib/oeqa/selftest/cases/cve_check.py
new file mode 100644
index 0000000000..35e2b29a9a
--- /dev/null
+++ b/meta/lib/oeqa/selftest/cases/cve_check.py
@@ -0,0 +1,27 @@
+from oe.cve_check import Version
+from oeqa.selftest.case import OESelftestTestCase
+
+class CVECheck(OESelftestTestCase):
+
+    def test_version_compare(self):
+        result = Version("100") > Version("99")
+        self.assertTrue( result, msg="Failed to compare version '100' > '99'")
+        result = Version("2.3.1") > Version("2.2.3")
+        self.assertTrue( result, msg="Failed to compare version '2.3.1' > '2.2.3'")
+        result = Version("2021-01-21") > Version("2020-12-25")
+        self.assertTrue( result, msg="Failed to compare version '2021-01-21' > '2020-12-25'")
+        result = Version("1.2-20200910") < Version("1.2-20200920")
+        self.assertTrue( result, msg="Failed to compare version '1.2-20200910' < '1.2-20200920'")
+
+        result = Version("1.0") >= Version("1.0beta")
+        self.assertTrue( result, msg="Failed to compare version '1.0' >= '1.0beta'")
+        result = Version("1.0-rc2") > Version("1.0-rc1")
+        self.assertTrue( result, msg="Failed to compare version '1.0-rc2' > '1.0-rc1'")
+        result = Version("1.0.alpha1") < Version("1.0")
+        self.assertTrue( result, msg="Failed to compare version '1.0.alpha1' < '1.0'")
+        result = Version("1.0_dev") <= Version("1.0")
+        self.assertTrue( result, msg="Failed to compare version '1.0_dev' <= '1.0'")
+
+        # ignore "p1" and "p2", so these should be equal
+        result = Version("1.0p2") <= Version("1.0p1") and Version("1.0p2") >= Version("1.0p1")
+        self.assertTrue( result ,msg="Failed to compare version '1.0p2' to '1.0p1'")