support versioning for homebrew tap

Author: kyleburton

bake

@@ -313,6 +313,7 @@ function bake_inernal_help () {
   echo "   init        Creates a skeleton Bakefile"
   echo "   update      Updates libraries (see ~/.bake)."
   echo "   upgrade     Refreshes bake itself."
+  echo "   version     Show the version of bake!"
 }
 
 function bake_sorted_task_list () {
@@ -392,6 +393,10 @@ function bake_upgrade () {
   mv $0.new $0
 }
 
+function bake_version () {
+  echo "$BAKE_VERSION"
+}
+
 function bake_update () {
   if [ ! -d $HOME/.bake/packages ]; then
     bake_echo_yellow "No libraries found in ~/.bake, nothing to upgrade"
@@ -438,6 +443,11 @@ function bake_run () {
   local bakefile="$(bake_find_bakefile)"
 
   if [ ! -e "$bakefile" ]; then
+    if [ "$task" == "version" ]; then
+      bake_version
+      return 0
+    fi
+
     if [ "$task" == "upgrade" ]; then
       bake_upgrade
       return 0

build/Bakefile

@@ -2,8 +2,15 @@
 
 # bake_require github.com/kyleburton/bake-recipes/docker/docker.sh
 
+function build::update-version () {
+  local infname="$1"
+  local vstring="$2"
+
+  sed -i '' "s/^BAKE_VERSION=\".*\"$/BAKE_VERSION=\"$vstring\"/" "$infname"
+}
+
 function build::curr-git-tag {
-  local curr_tag="$(git tag -l | sort | head -n 1)"
+  local curr_tag="$(git tag -l | sort | tail -n 1)"
   if [ -z "$curr_tag" ]; then
       echo "1.0.0"
   fi
@@ -46,6 +53,8 @@ function make-release () {
   cp README.md Changes "./release/$relname/"
   cp bake bake-completion.sh "./release/$relname/bin"
 
+  build::update-version "./release/$relname/bin/bake" "$next_tag"
+
   tar -C ./release -czvf $bundle_name $relname
   bake_echo_yellow "TODO: update Changes using the current date + git log using curr ($curr_tag) vs next ($next_tag) tags"
   bake_echo_yellow "TODO: automate the process of creating the release in GH: https://help.github.com/articles/creating-releases/"