break(entrypoint): Changed system to use titles (#1)

Changed system to not use the `package.json` but instead just use the git formula: `git log --oneline --no-decorate $tag..HEAD`.

This will now list all the commits between the new tag and the latest tag in a nicely formatted list using the pattern:

`- HASH - Title`

Author: Bullrich

Dockerfile

@@ -1,7 +1,6 @@
 FROM alpine:3
 
-RUN apk --no-cache add git nodejs-npm
-RUN npm install -g generate-changelog
+RUN apk --no-cache add git
 
 COPY LICENSE README.md /
 

README.md

@@ -1,10 +1,9 @@
 # generate-changelog-action
 
-GitHub Action for [lob/generate-changelog](https://github.com/lob/generate-changelog/). Intended to be used with [actions/create-release](https://github.com/actions/create-release).
+GitHub Action for generating a changelog of all the git commits between the new tag and the latest tags. 
 
-**Note:** [Your repository must contain a `package.json` file.](https://github.com/lob/generate-changelog/issues/38#issuecomment-362726723)
-
-Created during the GitHub Actions Hackathon 2020 and [selected as one of the winning projects!](https://docs.google.com/spreadsheets/d/1YL6mjJXGt3-75GejQCubsOvWwtYcGaqbJA7msnsh7Tg/edit#gid=0&range=A100:C100)
+Based on [ScottBrenner/generate-changelog-action](https://github.com/ScottBrenner/generate-changelog-action). 
+Intended to be used with [actions/create-release](https://github.com/actions/create-release).
 
 ## Example workflow - create a release
 Extends [actions/create-release: Example workflow - create a release](https://github.com/actions/create-release#example-workflow---create-a-release) to generate changelog from git commits and use it as the body for the GitHub release.
@@ -49,17 +48,5 @@ jobs:
 The above workflow will create a release that looks like:
 ![Release](release.png)
 
-If your `package.json` isn't available in root, you can pass the directory of the `package.json`:
-
-```yaml
-      - name: Changelog
-        uses: scottbrenner/generate-changelog-action@master
-        id: Changelog
-        env:
-          REPO: ${{ github.repository }}
-        with:
-          package-dir: 'root/to/my/package.json'
-```
-
-For more information, see [actions/create-release: Usage](https://github.com/actions/create-release#usage) and [lob/generate-changelog: Usage](https://github.com/lob/generate-changelog#usage)
+For more information, see [actions/create-release: Usage](https://github.com/actions/create-release#usage).
 

action.yml

@@ -1,19 +1,12 @@
 name: 'generate-changelog-action'
-description: 'GitHub Action for lob/generate-changelog'
-author: 'Scott Brenner'
+description: 'GitHub Action for generating a changelog of all commits in a release'
+author: 'Javier Bullrich'
 outputs:
   changelog:
     description: 'Generate changelog'
-inputs:
-  package-dir:
-    description: 'The path for the package.json if it is not in root'
-    required: false
-    default: 'package.json'
 runs:
   using: 'docker'
   image: 'Dockerfile'
-  args:
-    - ${{ inputs.package-dir }}
 branding:
   icon: 'edit'
   color: 'gray-dark'

entrypoint.sh

@@ -2,17 +2,18 @@
 
 git clone --quiet https://github.com/$REPO &> /dev/null
 
-if [ "$1" ] && [ "$1" != "package.json" ]; then
-  cp "$1" package.json
-fi
-
 tag=$(git tag --sort version:refname | tail -n 2 | head -n 1)
-changelog=$(generate-changelog -t "$tag" --file -)
+
+if [ "$tag" ]; then
+  changelog=$(git log --oneline --no-decorate $tag..HEAD)
+else
+  changelog=$(git log --oneline --no-decorate)
+fi
 
 echo $changelog
 
 changelog="${changelog//'%'/'%25'}"
-changelog="${changelog//$'\n'/'%0A'}"
-changelog="${changelog//$'\r'/'%0D'}"
+changelog="${changelog//$'\n'/'%0A' - }"
+changelog=" - ${changelog//$'\r'/'%0D'}"
 
 echo "::set-output name=changelog::$changelog"