diff --git a/.gitignore b/.gitignore
index d3214e3..8a010cf 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,5 @@
 coco
 cog
 LICENSE
-cocogitto-* 
\ No newline at end of file
+cocogitto-*
+.idea
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..f6d8285
--- /dev/null
+++ b/README.md
@@ -0,0 +1,92 @@
+# Cocogitto github action
+
+This action uses [cocogitto](https://github.com/oknozor/cocogitto) to check 
+your repository is [conventional commit](https://conventionalcommits.org/) and perform auto-release.
+
+## Requirement
+
+1. Before running this action you need to call checkout action with `fetch-depth: 0`. This is mandatory, otherwise not all commit 
+will be fetched and cocogitto will fail to execute (see [actions/checkout](https://github.com/actions/checkout#checkout-v2) for more info).
+
+2. Cocogitto assumes you are running on a x86 linux runner.
+
+## Example 
+
+```yaml
+on: [push]
+
+jobs:
+  cog_check_job:
+    runs-on: ubuntu-latest
+    name: check conventional commit compliance
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Conventional commit check
+        uses: oknozor/cocogitto-action@v1
+```
+
+If you are familiar with cocogitto this will run `cog check` and nothing else.
+
+## Check commits since latest tag 
+
+In some case you might want to perform check only since the latest tagged version.
+If your repository has not alway been conventional commit compliant, then you probably want to 
+use this option. 
+
+```yaml
+      - name: Conventional commit check
+        uses: oknozor/cocogitto-action@v1
+        with:
+          check-latest-tag-only: true
+```
+
+Let us assume the following git history : 
+
+```
+* 9b609bc - (HEAD -> main) WIP: feat unfinished work
+* d832ca4 - feat: working on feature A
+* d5ce110 - (tag: 0.1.0) chore: release 0.1.0
+* 8f25a4b - chore: a commit before tag 0.1.0
+```
+
+Using `check-latest-tag-only: true` here would make cocogitto check for the two commits made since
+tag `0.1.0`, the action would fail on *HEAD* which contains the non conventional commit
+type 'WIP'.
+
+## Performing release
+
+You can also use this action to perform releases (calling `cog bump --auto` under the hood) 
+(see: [cocogitto's auto bump](https://github.com/oknozor/cocogitto#auto-bump)).
+
+```yaml
+      - name: Semver release
+        uses: oknozor/cocogitto-action@v1
+        with:
+          release: true
+          git-user: 'Cog Bot'
+          git-user-email: 'mycoolproject@org.org'
+```
+
+Note that you probably want to set the `git-user` and `git-user-email` options to override the default the git signature for the release commit. 
+If you are not familiar with how cocogitto perform release, you might want to read the [auto bump](https://github.com/oknozor/cocogitto#auto-bump)
+and [hook](https://github.com/oknozor/cocogitto#auto-bump) sections on cocogitto's documentation.
+
+##  Reference 
+
+Here are all the inputs available through `with`:
+
+| Input                   | Description                                                                | Default    |
+| -------------------     | -------------------------------------------------------------------------- | -------    |
+| `check`                 | Check conventional commit compliance with `cog check`                      |   `true`   |
+| `check-latest-tag-only` | Check conventional commit compliance with `cog check --from-latest-tag`    |   `false`  |
+| `release`               | Perform a release using `cog bump --auto`                                  |   `false`  |
+| `git-user`              | Set the git `user.name` to use for the release commit                      |   `cog-bot`|
+| `git-user-email`        | Set the git `user.email` to use for the release commit                      |  `cog@demo.org`|
+
+
+
+
+
diff --git a/action.yml b/action.yml
index 57ff58a..b23e501 100644
--- a/action.yml
+++ b/action.yml
@@ -1,9 +1,43 @@
-name: 'Cog check'
-description: 'Check that your git log is conventional commit compliant'
+name: 'Conventional commit cocogitto action'
+description: 'Check conventional commits compliance and/or automatically release new version'
+branding:
+  icon: 'git-commit'
+  color: 'red'
+author: 'Paul Delafosse'
 
+inputs:
+  release:
+    description: 'Perform a release with cog bump --auto'
+    required: false
+    default: 'false'
+  check:
+    description: 'Perform a conventional commit check with cog --check'
+    required: false
+    default: 'true'
+  check-latest-tag-only:
+    description: 'Check commit history from latest tag to HEAD'
+    required: false
+    default: 'false'
+  git-user:
+    description: 'Git user.name configuration'
+    required: false
+    default: 'cog-bot'
+  git-user-email:
+    description: 'Git user.email configuration'
+    required: false
+    default: 'cog@demo.org'
 runs:
   using: "composite"
   steps:
     - run: echo Running cog check
-    - run: ${{ github.action_path }}/cog.sh
+      shell: sh
+
+    - run: |
+        ${{ github.action_path }}/cog.sh    \
+        ${{ inputs.check }} \
+        ${{ inputs.check-latest-tag-only }} \
+        ${{ inputs.release }}               \
+        ${{ inputs.git-user }}              \
+        ${{ inputs.git-user-email }}
+
       shell: sh
diff --git a/cog.sh b/cog.sh
index dd93cb0..89bb5d4 100755
--- a/cog.sh
+++ b/cog.sh
@@ -1,8 +1,46 @@
 #!/bin/sh
 
-VERSION=2.0.0
+set -a
+
+VERSION=2.1.1
 TAR="cocogitto-$VERSION-x86_64-unknown-linux-musl.tar.gz"
+CHECK=$1
+LATEST_TAG_ONLY=$2
+RELEASE=$3
+GIT_USER=$4
+GIT_USER_EMAIL=$5
+CUR_DIR=$(pwd)
+BIN_DIR=/home/runner/work/bin
+
+
+echo "Setting git user : $GIT_USER"
+git config --global user.name "$GIT_USER"
+
+echo "Settings git user email $GIT_USER_EMAIL"
+git config --global user.email "$GIT_USER_EMAIL"
 
+mkdir -p "$BIN_DIR"
+cd "$BIN_DIR" || exit
 curl -OL https://github.com/oknozor/cocogitto/releases/download/"$VERSION"/"$TAR"
-tar xfvz $TAR
-./cog check
+tar xfz $TAR
+
+cd "$CUR_DIR" || exit
+
+if [ "$CHECK" = "true" ]; then
+  if [ "$LATEST_TAG_ONLY" = "true" ]; then
+    if [ "$(git describe --abbrev=0)" ]; then
+      message="Checking commits from $(git describe --abbrev=0)"
+    else
+      message="No tag found checking history from first commit"
+    fi
+      echo "$message"
+      "$BIN_DIR"/./cog check --from-latest-tag
+  else
+     echo "Checking all commits"
+     "$BIN_DIR"/./cog check
+  fi
+fi
+
+if [ "$RELEASE" = "true" ]; then
+   "$BIN_DIR"/./cog bump --auto
+fi
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