Merge pull request #58 from endrjuskr/master

Add initial version parameter and output part which was bumped

README.md

@@ -45,11 +45,13 @@ _NOTE: set the fetch-depth for `actions/checkout@master` to be sure you retrieve
 * **CUSTOM_TAG** *(optional)* - Set a custom tag, useful when generating tag based on f.ex FROM image in a docker image. **Setting this tag will invalidate any other settings set!**
 * **SOURCE** *(optional)* - Operate on a relative path under $GITHUB_WORKSPACE.
 * **DRY_RUN** *(optional)* - Determine the next version without tagging the branch. The workflow can use the outputs `new_tag` and `tag` in subsequent steps. Possible values are ```true``` and ```false``` (default). 
+* **INITIAL_VERSION** *(optional)* - Set initial version before bump. Default `0.0.0`.
 
 #### Outputs
 
 * **new_tag** - The value of the newly created tag.
 * **tag** - The value of the latest tag after running this action.
+* **part** - The part of version which was bumped.
 
 > ***Note:*** This action creates a [lightweight tag](https://developer.github.com/v3/git/refs/#create-a-reference).
 

action.yml

@@ -9,6 +9,8 @@ outputs:
     description: 'Generated tag'
   tag:
     description: 'The latest tag after running this action'
+  part:
+    description: 'The part of version which was bumped'
 branding:
   icon: 'git-merge'  
   color: 'purple'

entrypoint.sh

@@ -7,6 +7,7 @@ release_branches=${RELEASE_BRANCHES:-master}
 custom_tag=${CUSTOM_TAG}
 source=${SOURCE:-.}
 dryrun=${DRY_RUN:-false}
+initial_version=${INITIAL_VERSION:-0.0.0}
 
 cd ${GITHUB_WORKSPACE}/${source}
 
@@ -39,11 +40,11 @@ if [ "$tag_commit" == "$commit" ]; then
     exit 0
 fi
 
-# if there are none, start tags at 0.0.0
+# if there are none, start tags at INITIAL_VERSION which defaults to 0.0.0
 if [ -z "$tag" ]
 then
     log=$(git log --pretty='%B')
-    tag=0.0.0
+    tag="$initial_version"
 else
     log=$(git log $tag..HEAD --pretty='%B')
 fi
@@ -53,12 +54,14 @@ echo $log
 # get commit logs and determine home to bump the version
 # supports #major, #minor, #patch (anything else will be 'minor')
 case "$log" in
-    *#major* ) new=$(semver bump major $tag);;
-    *#minor* ) new=$(semver bump minor $tag);;
-    *#patch* ) new=$(semver bump patch $tag);;
-    * ) new=$(semver bump `echo $default_semvar_bump` $tag);;
+    *#major* ) new=$(semver bump major $tag); part="major";;
+    *#minor* ) new=$(semver bump minor $tag); part="minor";;
+    *#patch* ) new=$(semver bump patch $tag); part="patch";;
+    * ) new=$(semver bump `echo $default_semvar_bump` $tag); part=$default_semvar_bump;;
 esac
 
+echo $part
+
 # did we get a new tag?
 if [ ! -z "$new" ]
 then
@@ -83,6 +86,7 @@ echo $new
 
 # set outputs
 echo ::set-output name=new_tag::$new
+echo ::set-output name=part::$part
 
 # use dry run to determine the next tag
 if $dryrun