fix handling of version 0.0.0 - fixes #23

test.js

@@ -25,7 +25,7 @@ async function main() {
       },
       "prismjs": {
         old: "1.0.0",
-        new: "1.15.0",
+        new: "1.16.0",
         info: "https://github.com/LeaVerou/prism",
       },
       "svgstore": {
@@ -42,6 +42,11 @@ async function main() {
         old: "3.1.0",
         new: "3.2.0-beta",
         info: "https://github.com/needim/noty",
+      },
+      "jpeg-buffer-orientation": {
+        old: "0.0.0",
+        new: "1.0.0",
+        info: "https://github.com/fisker/jpeg-buffer-orientation",
       }
     }
   });
@@ -67,6 +72,11 @@ async function main() {
         old: "3.1.0",
         new: "3.1.4",
         info: "https://github.com/needim/noty",
+      },
+      "jpeg-buffer-orientation": {
+        old: "0.0.0",
+        new: "1.0.0",
+        info: "https://github.com/fisker/jpeg-buffer-orientation",
       }
     }
   });
@@ -97,6 +107,11 @@ async function main() {
         old: "3.1.0",
         new: "3.2.0-beta",
         info: "https://github.com/needim/noty",
+      },
+      "jpeg-buffer-orientation": {
+        old: "0.0.0",
+        new: "1.0.0",
+        info: "https://github.com/fisker/jpeg-buffer-orientation",
       }
     }
   });
@@ -110,7 +125,7 @@ async function main() {
       },
       "prismjs": {
         old: "1.0.0",
-        new: "1.15.0",
+        new: "1.16.0",
         info: "https://github.com/LeaVerou/prism",
       },
       "svgstore": {
@@ -127,9 +142,39 @@ async function main() {
         old: "3.1.0",
         new: "3.1.4",
         info: "https://github.com/needim/noty",
+      },
+      "jpeg-buffer-orientation": {
+        old: "0.0.0",
+        new: "1.0.0",
+        info: "https://github.com/fisker/jpeg-buffer-orientation",
       }
     }
   });
+
+  assert.deepStrictEqual(await run("-j -P -f test.json"), {
+    results: {
+      "gulp-sourcemaps": {
+        old: "2.0.0",
+        new: "2.0.1",
+        info: "https://github.com/floridoo/gulp-sourcemaps",
+      },
+      "svgstore": {
+        old: "^3.0.0",
+        new: "^3.0.0-2",
+        info: "https://github.com/svgstore/svgstore",
+      },
+      "html-webpack-plugin": {
+        old: "4.0.0-alpha.2",
+        new: "4.0.0-beta.5",
+        info: "https://github.com/jantimon/html-webpack-plugin",
+      },
+      "noty": {
+        old: "3.1.0",
+        new: "3.1.4",
+        info: "https://github.com/needim/noty",
+      },
+    }
+  });
 }
 
 main().then(exit).catch(exit);

test.json

@@ -4,6 +4,7 @@
     "prismjs": "1.0.0",
     "svgstore": "^3.0.0",
     "html-webpack-plugin": "4.0.0-alpha.2",
-    "noty": "3.1.0"
+    "noty": "3.1.0",
+    "jpeg-buffer-orientation": "0.0.0"
   }
 }

updates.js

@@ -388,7 +388,9 @@ function isValidSemverRange(range) {
 }
 
 function isVersionPrerelease(version) {
-  return Boolean(semver.parse(version).prerelease.length);
+  const parsed = semver.parse(version);
+  if (!parsed) return false;
+  return Boolean(parsed.prerelease.length);
 }
 
 function isRangePrerelease(range) {
@@ -400,7 +402,7 @@ function rangeToVersion(range) {
   try {
     return semver.coerce(range).version;
   } catch (err) {
-    return "0.0.0";
+    return null;
   }
 }
 
@@ -435,7 +437,7 @@ function findVersion(data, versions, opts) {
     }
   }
 
-  return tempVersion === "0.0.0" ? null : tempVersion;
+  return tempVersion || null;
 }
 
 function findNewVersion(data, opts) {