diff --git a/README.md b/README.md
index 49cf5d0..0a0ba8d 100644
--- a/README.md
+++ b/README.md
@@ -1,27 +1,40 @@
 # Copycat
-GitHub action for copying files from one repository to another.
+[GitHub action](https://developer.github.com/actions/) for copying files from one repository to another.
 
-##Usage
+## Usage
 ```
+action "Copycat" {
+  uses = "andstor/copycat-action@v1.0.0"
+  secrets = ["GH_PAT"]
+  env = {
+    DST_OWNER = "andstor"
+    DST_REPO_NAME = "copycat-action"
+    SRC_WIKI = "true"
+    DST_PATH = "/wiki/"
+    SRC_PATH = "/."
+  }
+}
 ```
 
 ## Environment variables
+The following environment variable options can/must be configured:
 
-The following environment variable options can be configured:
-
-|Environment variable|Description| Type |Default|
-|-------|-----------| ---- |-------|
-|`SRC_PATH`|The source path to the file(s) or folder(s) to copy from. For example,`home.md`|`String`||
-|`DST_PATH`|The destination path to copy the file(s) or folder(s) to. For example, `pages/.`. |`String`|`SRC_PATH`|
-|`DST_OWNER`|The name of the owner of the repository to push to. For example, `andstor`.|`String`||
-|`DST_REPO_NAME`|The name of the repository to push to. For example, `copycat-action`.|`String`||
-|`SRC_BRANCH`|The branch name of the source repository. Optional.|`String`|`master`|
-|`DST_BRANCH`|The branch name of the destination repository. Optional.|`String`|`master`|
-|`SRC_WIKI`|If the source repository you want to copy from is the GitHub Wiki.|`Boolean`| `false`|
-|`DST_WIKI`|If the destination repository you want to copy from is the GitHub Wiki.|`Boolean`| `false`|
-
+|Environment variable|Required|Description|Default|
+|--------------------|--------|-----------|-------|
+|`SRC_PATH`|Required|The source path to the file(s) or folder(s) to copy from. For example, `/.` or `path/to/home.md`.||
+|`DST_PATH`|Optional|The destination path to copy the file(s) or folder(s) to. For example, `/wiki/` or `path/to/index.md`. |`SRC_PATH`|
+|`DST_OWNER`|Required|The name of the owner of the repository to push to. For example, `andstor`.||
+|`DST_REPO_NAME`|Required|The name of the repository to push to. For example, `copycat-action`.||
+|`SRC_BRANCH`|Optional|The branch name of the source repository. Optional.|`master`|
+|`DST_BRANCH`|Optional|The branch name of the destination repository. Optional.|`master`|
+|`SRC_WIKI`|Optional|Set to `true` if the source repository you want to copy from is the GitHub Wiki.| `false`|
+|`DST_WIKI`|Optional|Set to `true` if the destination repository you want to copy from is the GitHub Wiki.|`false`|
 
 ## Secrets
-* `GITHUB_TOKEN`: (required) Include the [GitHub token secret](https://developer.github.com/actions/creating-workflows/storing-secrets/#github-token-secret) to make authenticated calls to the GitHub API for the **source repository**.
+* `GH_PAT`: (required) GitHub Private Access Token used for the clone/push operations. To create it follow the [GitHub Documentation](https://help.github.com/en/articles/creating-a-personal-access-token-for-the-command-line).
+
+## Author
+The Copycat GitHub action is written by [André Storhaug](https://github.com/andstor) <andr3.storhaug@gmail.com>
 
-* `GH_PAT`: (required) GitHub Private Access Token used for the clone/push operations for the **destination repository**. To create it follow the [GitHub Documentation](https://help.github.com/en/articles/creating-a-personal-access-token-for-the-command-line).
\ No newline at end of file
+## License
+This project is licensed under the [MIT License](https://opensource.org/licenses/MIT) - see the [LICENSE](LICENSE) file for details.
diff --git a/entrypoint.sh b/entrypoint.sh
index 681adf1..983c278 100755
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,33 +1,40 @@
 #!/bin/sh
-set -eo pipefail
+#
+# @author André Storhaug <andr3.storhaug@gmail.com>
+# @date 2019-07-01
+# @copyright MIT
+# @version 0.1.2
 
-if [[ -z "${SRC_PATH}" ]]; then
+set -o pipefail
+
+if [[ -z "$SRC_PATH" ]]; then
   echo "SRC_PATH environment variable is missing. Cannot proceed."
   exit 1
 fi
 
-if [[ -z "${DST_OWNER}" ]]; then
+if [[ -z "$DST_OWNER" ]]; then
   echo "DST_OWNER environment variable is missing. Cannot proceed."
   exit 1
 fi
 
-if [[ -z "${DST_REPO_NAME}" ]]; then
+if [[ -z "$DST_REPO_NAME" ]]; then
   echo "DST_REPO_NAME environment variable is missing. Cannot proceed."
   exit 1
 fi
 
-if [ -n "${SRC_WIKI}" = true ]; then
+if [ "$SRC_WIKI" = "true" ]; then
     SRC_WIKI=".wiki"
 else
     SRC_WIKI=""
 fi
 
-if [ -n "${DST_WIKI}" = true ]; then
+if [ "$DST_WIKI" = "true" ]; then
     DST_WIKI=".wiki"
 else
     DST_WIKI=""
 fi
 
+BASE_PATH=$(pwd)
 DST_PATH="${DST_PATH:-${SRC_PATH}}"
 
 SRC_BRANCH="${SRC_BRANCH:-master}"
@@ -38,25 +45,45 @@ SRC_REPO_NAME="${GITHUB_REPOSITORY#*/}${SRC_WIKI}"
 DST_REPO="${DST_OWNER}/${DST_REPO_NAME}${DST_WIKI}"
 DST_REPO_NAME="${DST_REPO_NAME}${DST_WIKI}"
 
-DIR="${SRC_PATH%/*}"
+DIR="${DST_PATH%/*}"
 
 git config --global user.name "${GITHUB_ACTOR}"
 git config --global user.email "${GITHUB_ACTOR}@users.noreply.github.com"
 
-echo "Copying \"${SRC_PATH}\" and pushing it to ${GITHUB_REPOSITORY}"
+echo "Copying \"${SRC_REPO_NAME}/${SRC_PATH}\" and pushing it to ${GITHUB_REPOSITORY}"
 
+git clone --branch ${SRC_BRANCH} --single-branch --depth 1 https://${GH_PAT}@github.com/${SRC_REPO}.git
+if [ "$?" -ne 0 ]; then
+    echo >&2 "Cloning '$SRC_REPO' failed"
+    exit 1
+fi
+rm -rf ${SRC_REPO_NAME}/.git # TODO: Remove every file that matches a filter (issue #1)
 
-git clone --branch ${SRC_BRANCH} --single-branch --depth 1 https://${GITHUB_TOKEN}@github.com/${SRC_REPO}.git
 git clone --branch ${DST_BRANCH} --single-branch --depth 1 https://${GH_PAT}@github.com/${DST_REPO}.git
+if [ "$?" -ne 0 ]; then
+    echo >&2 "Cloning '$DST_REPO' failed"
+    exit 1
+fi
 
-mkdir -p DIR
-cp -rf ${SRC_REPO_NAME}/${SRC_PATH} ${DST_REPO_NAME}/${DST_PATH}
+mkdir -p ${DST_REPO_NAME}/${DIR} || exit "$?"
+cp -rf ${SRC_REPO_NAME}/${SRC_PATH} ${DST_REPO_NAME}/${DST_PATH} || exit "$?"
+cd ${DST_REPO_NAME} || exit "$?"
 
-cd ${DST_REPO_NAME}
+if [ -d "${BASE_PATH}/${SRC_REPO_NAME}/${SRC_PATH}" ]; then
+    COMMIT_MESSAGE="Update file(s) in \"${SRC_PATH}\" from \"${GITHUB_REPOSITORY}\""
+else
+    COMMIT_MESSAGE="Update file \"${SRC_PATH}\" from \"${GITHUB_REPOSITORY}\""
+fi
 
-git add -A
-git commit --message "Update \"${SRC_PATH}\" from \"${GITHUB_REPOSITORY}\""
+if [ -z "$(git status --porcelain)" ]; then
+    # Working directory is clean
+    echo "No changes detected "
+else
+    # Uncommitted changes
+    git add -A
+    git commit --message "${COMMIT_MESSAGE}"
 
-git push -u origin ${DST_BRANCH}
+    git push -u origin ${DST_BRANCH}
+fi
 
 echo "Copying complete 👌"
\ No newline at end of file