Update the release script

This updates the release script to add the changelog gem as well as
clean up some of the scripts.

This also updates the binaries being uploaded and the messages being
passed onto the tag description on GitHub.

script/release.sh

@@ -23,9 +23,9 @@ usage() {
   echo ""
   echo "Requirements:"
   echo " git"
-  echo " tar - you should already have this on your system"
   echo " hub"
   echo " github-release"
+  echo " github_changelog_generator"
   echo " GITHUB_TOKEN in your env variable"
   echo " "
   echo "Not only that, but you must have permission for:"
@@ -44,6 +44,11 @@ requirements() {
     return 1
   fi
 
+  if [ ! -f /usr/local/bin/github_changelog_generator ]; then
+    echo "github_changelog_generator required to generate the change log. Please run 'gem install github_changelog_generator"
+    return 1
+  fi
+
   if [ ! -f /usr/bin/hub ]; then
     echo "Hub needed in order to create the relevant PR's. Please install hub @ https://github.com/github/hub"
     return 1
@@ -74,9 +79,13 @@ replaceversion() {
   cd $CLI
 
   echo "1. Replaced version in version.go"
-  find . -name 'version.go' -maxdepth 3 -type f -exec sed -i "s/$1/$2/g" {} \;
+  sed -i "s/$1/$2/g" cmd/version.go
 
-  echo "2. Replaced README.md versioning"
+  echo "2. Replace GITCOMMIT value in version.go"
+  VERSION=`git log -1 --pretty=format:%h`
+  sed -i "s|.*GITCOMMIT = .*|\tGITCOMMIT = \"$VERSION\"|" cmd/version.go
+
+  echo "3. Replaced README.md versioning"
   sed -i "s/$1/$2/g" README.md
   
   cd ..
@@ -84,25 +93,20 @@ replaceversion() {
 
 changelog() {
   cd $CLI
-  echo "Getting commit changes. Writing to ../changes.txt"
-  LOG=`git shortlog --email --no-merges --pretty=%s v${1}..`
-  echo -e "\`\`\`\n$LOG\n\`\`\`" > ../changes.txt
-  echo "Changelog has been written to changes.txt"
-  echo "!!PLEASE REVIEW BEFORE CONTINUING!!"
-  echo "Open changes.txt and add the release information"
-  echo "to the beginning of the file before the git shortlog"
+  echo "Generating changelog using github-changelog-generator"
+  github_changelog_generator $UPSTREAM_REPO/$CLI -t $GITHUB_TOKEN --future-release v$1
   cd ..
 }
 
-changelog_md() {
-  echo "Generating CHANGELOG.md"
-  CHANGES=$(cat changes.txt)
+changelog_github() {
+  touch changes.txt
+  echo "Write your GitHub changelog here" >> changes.txt
+  $EDITOR changes.txt
+}
+
+build_binaries() {
   cd $CLI
-  DATE=$(date +"%m-%d-%Y")
-  CHANGELOG=$(cat CHANGELOG.md)
-  HEADER="## $CLI $1 ($DATE)"
-  echo -e "$HEADER\n\n$CHANGES\n\n$CHANGELOG" >CHANGELOG.md
-  echo "Changes have been written to CHANGELOG.md"
+  make cross
   cd ..
 }
 
@@ -137,6 +141,8 @@ git_pull() {
 push() {
   CHANGES=$(cat changes.txt)
   # Release it!
+
+  echo "Creating GitHub tag"
   github-release release \
       --user $UPSTREAM_REPO \
       --repo $CLI \
@@ -144,24 +150,30 @@ push() {
       --name "v$1" \
       --description "$CHANGES"
   if [ $? -eq 0 ]; then
-        echo RELEASE UPLOAD OK 
+        echo UPLOAD OK 
   else 
-        echo RELEASE UPLOAD FAIL
+        echo UPLOAD FAIL
         exit
   fi
 
+  # Upload all the binaries generated in bin/
+  for f in $CLI/bin/*
+  do
+    echo "Uploading $f binary"
+    NAME=`echo $f | sed "s,$CLI/bin/,,g"`
     github-release upload \
         --user $UPSTREAM_REPO \
         --repo $CLI \
-      --tag $1 \
-      --name "$CLI-$1.tar.gz" \
-      --file $CLI-$1.tar.gz
+        --tag v$1 \
+        --file $f \
+        --name $NAME
     if [ $? -eq 0 ]; then
-        echo TARBALL UPLOAD OK 
+          echo UPLOAD OK 
     else 
-        echo TARBALL UPLOAD FAIL
+          echo UPLOAD FAIL
           exit
     fi
+  done
 
   echo "DONE"
   echo "DOUBLE CHECK IT:"
@@ -207,10 +219,10 @@ main() {
   "Git clone master"
   "Replace version number"
   "Generate changelog"
-  "Generate changelog for release"
+  "Generate GitHub changelog"
   "Create PR"
-  "Git pull most recent changes"
-  "Upload the tarball and push to Github release page"
+  "Build binaries"
+  "Upload the binaries and push to GitHub release page"
   "Clean"
   "Quit")
   select opt in "${options[@]}"
@@ -224,18 +236,18 @@ main() {
               replaceversion $PREV_VERSION $VERSION
               ;;
           "Generate changelog")
-              changelog $PREV_VERSION
+              changelog $VERSION
               ;;
-          "Generate changelog for release")
-              changelog_md $VERSION
+          "Generate GitHub changelog")
+              changelog_github $VERSION
               ;;
           "Create PR")
               git_commit $VERSION
               ;;
-          "Git pull most recent changes")
-              git_pull
+          "Build binaries")
+              build_binaries
               ;;
-          "Upload the tarball and push to Github release page")
+          "Upload the binaries and push to GitHub release page")
               push $VERSION
               ;;
           "Clean")