Handle zlib.inflateSync being missing on node 0.10.

Author: rwjblue

.travis.yml

@@ -3,3 +3,8 @@ sudo: false
 cache:
   directories:
     - node_modules
+
+env:
+  - NODE_VERSION=0.10
+  - NODE_VERSION=0.12
+  - NODE_VERSION=iojs

index.js

@@ -48,6 +48,13 @@ function commitForTag(gitPath, tag) {
   var tagPath = path.join(gitPath, 'refs', 'tags', tag);
   var taggedObject = fs.readFileSync(tagPath, { encoding: 'utf8' }).trim();
   var objectPath = path.join(gitPath, 'objects', taggedObject.slice(0, 2), taggedObject.slice(2));
+
+  if (!zlib.inflateSync) {
+    // we cannot support annotated tags on node v0.10 because
+    // zlib does not allow sync access
+    return taggedObject;
+  }
+
   var objectContents = zlib.inflateSync(fs.readFileSync(objectPath)).toString();
 
   // 'tag 172\u0000object c1ee41c325d54f410b133e0018c7a6b1316f6cda\ntype commit\ntag awesome-tag\ntagger Robert Jackson <[email protected]> 1429100021 -0400\n\nI am making an annotated tag.\n'

tests/index.js

@@ -3,6 +3,7 @@
 var assert = require('assert');
 var path = require('path');
 var repoInfo = require('../index');
+var zlib = require('zlib');
 
 require('mocha-jshint')();
 
@@ -111,18 +112,20 @@ describe('git-repo-info', function() {
       assert.deepEqual(result, expected);
     });
 
-    it('returns an object with repo info, including the tag (annotated tags)', function() {
-      var repoRoot = path.join(testFixturesPath, 'tagged-annotated');
-      var result = repoInfo(path.join(repoRoot, gitDir));
-
-      var expected = {
-        branch: 'master',
-        sha: 'c1ee41c325d54f410b133e0018c7a6b1316f6cda',
-        abbreviatedSha: 'c1ee41c325',
-        tag: 'awesome-tag'
-      };
-
-      assert.deepEqual(result, expected);
-    });
+    if (zlib.inflateSync) {
+      it('returns an object with repo info, including the tag (annotated tags)', function() {
+        var repoRoot = path.join(testFixturesPath, 'tagged-annotated');
+        var result = repoInfo(path.join(repoRoot, gitDir));
+
+        var expected = {
+          branch: 'master',
+          sha: 'c1ee41c325d54f410b133e0018c7a6b1316f6cda',
+          abbreviatedSha: 'c1ee41c325',
+          tag: 'awesome-tag'
+        };
+
+        assert.deepEqual(result, expected);
+      });
+    }
   });
 });