Merge pull request #145 from nathan-lafreniere/master

added ls-remote command

README.markdown

@@ -21,16 +21,16 @@ Often I also put in a line to use a specific version of node.
 
 To download, compile, and install the v0.6.14 release of node, do this:
 
-    nvm install v0.6.14
+    nvm install 0.6.14
 
 
 And then in any new shell just use the installed version:
 
-    nvm use v0.6.14
+    nvm use 0.6.14
 
 Or you can just run it:
 
-    nvm run v0.6.14
+    nvm run 0.6.14
 
 If you want to see what versions are available:
 

nvm.sh

@@ -33,6 +33,17 @@ nvm_version()
     fi
 }
 
+nvm_remote_version()
+{
+    PATTERN=$1
+    VERSION=`nvm_ls_remote $PATTERN | tail -n1`
+    echo "v$VERSION"
+
+    if [ "$VERSION" = 'N/A' ]; then
+        return
+    fi
+}
+
 nvm_ls()
 {
     PATTERN=$1
@@ -60,6 +71,21 @@ nvm_ls()
     return
 }
 
+nvm_ls_remote()
+{
+    PATTERN=$1
+    VERSIONS=`curl -s http://nodejs.org/dist/ \
+            | egrep -o 'v[0-9]+\.[0-9]+\.[0-9]+' \
+            | grep -w "${PATTERN}" \
+            | sort -t. -u -k 1.2,1n -k 2,2n -k 3,3n`
+    if [ ! "$VERSIONS" ]; then
+        echo "N/A"
+        return
+    fi
+    echo "$VERSIONS"
+    return
+}
+
 print_versions()
 {
     OUTPUT=''
@@ -92,6 +118,7 @@ nvm()
       echo "    nvm run <version> [<args>]  Run <version> with <args> as arguments"
       echo "    nvm ls                      List installed versions"
       echo "    nvm ls <version>            List versions matching a given description"
+      echo "    nvm ls-remote               List remote versions available for install"
       echo "    nvm deactivate              Undo effects of NVM on current shell"
       echo "    nvm alias [<pattern>]       Show all aliases beginning with <pattern>"
       echo "    nvm alias <name> <version>  Set an alias named <name> pointing to <version>"
@@ -114,7 +141,7 @@ nvm()
         nvm help
         return
       fi
-      VERSION=`nvm_version $2`
+      VERSION=`nvm_remote_version $2`
       ADDITIONAL_PARAMETERS=''
       shift
       shift
@@ -174,7 +201,8 @@ nvm()
       fi
       VERSION=`nvm_version $2`
       if [ ! -d $NVM_DIR/$VERSION ]; then
-        echo "$VERSION version is not installed yet"
+        echo "$VERSION version is not installed yet... installing"
+        nvm install $VERSION
         return;
       fi
 
@@ -257,6 +285,10 @@ nvm()
       fi
       return
     ;;
+    "ls-remote" | "list-remote" )
+        print_versions "`nvm_ls_remote $2`"
+        return
+    ;;
     "alias" )
       mkdir -p $NVM_DIR/alias
       if [ $# -le 2 ]; then