code comments.

git-open

@@ -1,9 +1,11 @@
 #!/bin/sh
-#
+
 # Opens the github page for a repo/branch in your browser.
 #
 # gh [remote] [branch]
 
+
+# are we in a git repo?
 git rev-parse --is-inside-work-tree 2>/dev/null
 
 if [[ $? != 0 ]]
@@ -12,6 +14,9 @@ then
     exit 1
 fi
 
+
+# assume origin if not provided
+# fallback to upstream if neither is present.
 remote="origin"
 if [ ! -z "$1" ]
 then
@@ -27,9 +32,13 @@ then
     exit 1
 fi
 
+
+# URL normalization
 giturl=${giturl/git\@github\.com\:/https://github.com/}
 giturl=${giturl%\.git}
 
+
+# get current branch
 if [ -z "$2" ]
 then
     branch=`git symbolic-ref -q HEAD | sed -e 's|^refs/heads/||'`
@@ -45,5 +54,6 @@ fi
 # simplify URL for master
 giturl=${giturl/tree\/master/}
 
+# open it in a browser
 open $giturl
 exit 0