From 02a4d2d69f7dd22749016d66978cd63c9c5958d1 Mon Sep 17 00:00:00 2001
From: fraxken <gentilhomme.thomas@gmail.com>
Date: Fri, 9 May 2025 18:05:58 +0200
Subject: [PATCH] feat(mama): implement hasZeroSemver getter

---
 workspaces/mama/README.md                    |  3 ++
 workspaces/mama/src/ManifestManager.class.ts |  9 +++++
 workspaces/mama/test/ManifestManager.spec.ts | 40 ++++++++++++++++++++
 3 files changed, 52 insertions(+)

diff --git a/workspaces/mama/README.md b/workspaces/mama/README.md
index 32f0ac0a..db03b146 100644
--- a/workspaces/mama/README.md
+++ b/workspaces/mama/README.md
@@ -119,6 +119,9 @@ Return true if `workspaces` property is present
 > [!NOTE]
 > Workspace are described by the interface `WorkspacesPackageJSON` (from @nodesecure/npm-types)
 
+### hasZeroSemver
+Return true if `version` is starting with `0.x`
+
 ### flags
 
 Since we've created this package for security purposes, the instance contains various flags indicating threats detected in the content:
diff --git a/workspaces/mama/src/ManifestManager.class.ts b/workspaces/mama/src/ManifestManager.class.ts
index d96860c1..04cd7eb7 100644
--- a/workspaces/mama/src/ManifestManager.class.ts
+++ b/workspaces/mama/src/ManifestManager.class.ts
@@ -88,6 +88,15 @@ export class ManifestManager<
       .some((script) => kUnsafeNPMScripts.has(script.toLowerCase()));
   }
 
+  get hasZeroSemver() {
+    if (typeof this.document.version === "string") {
+      return /^0(\.\d+)*$/
+        .test(this.document.version);
+    }
+
+    return false;
+  }
+
   get nodejsImports() {
     return this.document.imports ?? {};
   }
diff --git a/workspaces/mama/test/ManifestManager.spec.ts b/workspaces/mama/test/ManifestManager.spec.ts
index 22f9fcf7..f0010810 100644
--- a/workspaces/mama/test/ManifestManager.spec.ts
+++ b/workspaces/mama/test/ManifestManager.spec.ts
@@ -435,6 +435,46 @@ describe("ManifestManager", () => {
     });
   });
 
+  describe("get hasZeroSemver", () => {
+    test("Given a PackageJSON with a semver higher than 1.x.x then it must return false", () => {
+      const packageJSON: PackageJSON = {
+        ...kMinimalPackageJSON
+      };
+
+      const mama = new ManifestManager(packageJSON);
+      assert.strictEqual(mama.hasZeroSemver, false);
+    });
+
+    test("Given a PackageJSON with a semver starting with 0.x it must return true", () => {
+      const packageJSON: PackageJSON = {
+        name: "foobar",
+        version: "0.5.5"
+      };
+
+      const mama = new ManifestManager(packageJSON);
+      assert.ok(mama.hasZeroSemver);
+    });
+
+    test("Given a WorkspacesPackageJSON with no version it must return false", () => {
+      const packageJSON: WorkspacesPackageJSON = {
+        workspaces: []
+      };
+
+      const mama = new ManifestManager(packageJSON);
+      assert.strictEqual(mama.hasZeroSemver, false);
+    });
+
+    test("Given a WorkspacesPackageJSON with a semver starting with 0.x it must return true", () => {
+      const packageJSON: WorkspacesPackageJSON = {
+        version: "0.1.2",
+        workspaces: []
+      };
+
+      const mama = new ManifestManager(packageJSON);
+      assert.ok(mama.hasZeroSemver);
+    });
+  });
+
   describe("get license", () => {
     test("Given a minimal PackageJSON with no license field then it must return null", () => {
       const mama = new ManifestManager(kMinimalPackageJSON);