semver - npm Package Compare versions

Comparing version 4.1.1 to 4.2.0

package.json

 {
   "name": "semver",
-  "version": "4.1.1",
+  "version": "4.2.0",
   "description": "The semantic version parser used by npm.",
@@ -5,0 +5,0 @@ "main": "semver.js",

README.md

@@ -270,2 +270,5 @@ semver(1) -- The semantic versioner for npm
   in descending order when passed to `Array.sort()`.
+* `diff(v1, v2)`: Returns difference between two versions by the release type
+  (`major`, `premajor`, `minor`, `preminor`, `patch`, `prepatch`, or `prerelease`),
+  or null if the versions are the same.
 
@@ -272,0 +275,0 @@

semver.browser.js

@@ -457,2 +457,29 @@ ;(function(exports) {
 
+exports.diff = diff;
+function diff(version1, version2) {
+  if (eq(version1, version2)) {
+    return null;
+  } else {
+    var v1 = parse(version1);
+    var v2 = parse(version2);
+    if (v1.prerelease.length || v2.prerelease.length) {
+      for (var key in v1) {
+        if (key === 'major' || key === 'minor' || key === 'patch') {
+          if (v1[key] !== v2[key]) {
+            return 'pre'+key;
+          }
+        }
+      }
+      return 'prerelease';
+    }
+    for (var key in v1) {
+      if (key === 'major' || key === 'minor' || key === 'patch') {
+        if (v1[key] !== v2[key]) {
+          return key;
+        }
+      }
+    }
+  }
+}
+
 exports.compareIdentifiers = compareIdentifiers;
@@ -459,0 +486,0 @@

semver.js

@@ -467,2 +467,29 @@ // export the class if we are in a Node-like system.
 
+exports.diff = diff;
+function diff(version1, version2) {
+  if (eq(version1, version2)) {
+    return null;
+  } else {
+    var v1 = parse(version1);
+    var v2 = parse(version2);
+    if (v1.prerelease.length || v2.prerelease.length) {
+      for (var key in v1) {
+        if (key === 'major' || key === 'minor' || key === 'patch') {
+          if (v1[key] !== v2[key]) {
+            return 'pre'+key;
+          }
+        }
+      }
+      return 'prerelease';
+    }
+    for (var key in v1) {
+      if (key === 'major' || key === 'minor' || key === 'patch') {
+        if (v1[key] !== v2[key]) {
+          return key;
+        }
+      }
+    }
+  }
+}
+
 exports.compareIdentifiers = compareIdentifiers;
@@ -469,0 +496,0 @@

test/index.js

@@ -16,2 +16,3 @@ 'use strict';
 var inc = semver.inc;
+var diff = semver.diff;
 var replaceStars = semver.replaceStars;
@@ -415,2 +416,30 @@ var toComparators = semver.toComparators;
 
+test('\ndiff versions test', function(t) {
+//  [version1, version2, result]
+//  diff(version1, version2) -> result
+  [['1.2.3', '0.2.3', 'major'],
+    ['1.4.5', '0.2.3', 'major'],
+    ['1.2.3', '2.0.0-pre', 'premajor'],
+    ['1.2.3', '1.3.3', 'minor'],
+    ['1.0.1', '1.1.0-pre', 'preminor'],
+    ['1.2.3', '1.2.4', 'patch'],
+    ['1.2.3', '1.2.4-pre', 'prepatch'],
+    ['0.0.1', '0.0.1-pre', 'prerelease'],
+    ['0.0.1', '0.0.1-pre-2', 'prerelease'],
+    ['1.1.0', '1.1.0-pre', 'prerelease'],
+    ['1.1.0-pre-1', '1.1.0-pre-2', 'prerelease'],
+    ['1.0.0', '1.0.0', null]
+
+  ].forEach(function(v) {
+    var version1 = v[0];
+    var version2 = v[1];
+    var wanted = v[2];
+    var found = diff(version1, version2);
+    var cmd = 'diff(' + version1 + ', ' + version2 + ')';
+    t.equal(found, wanted, cmd + ' === ' + wanted);
+  });
+
+  t.end();
+});
+
 test('\nvalid range test', function(t) {
@@ -417,0 +446,0 @@ // [range, result]

Fixed alerts

New author

Supply chain risk

A new npm collaborator published a version of the package for the first time. New collaborators are usually benign additions to a project, but do indicate a change to the security surface area of a package.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

139048

increased by15.16%

Lines of code

3009

increased by2.66%

Number of lines in readme file

301

increased by1.01%

Number of medium supply chain risk alerts

0

decreased by-100%

No dependency changes