Make Requirements.txt Installation Optional

README.md

@@ -32,6 +32,10 @@ https://www.mkdocs.org/user-guide/deploying-your-docs/#custom-domains
 
 This action supports deployment of mkdocs with different file path , if you populate a `CONFIG_FILE` environment variable. This is important if you have mkdocs file in another folder such as if you have `mkdocs.yml` in a path `docs/mkdocs.yml`. Without populating this, the deployment assumes that `mkdocs.yml` is on the root folder.
 
+### Requirements.txt
+
+This action supports installation of `requirements.txt` for custom installations on the mkdocs package such as installation of mermaid markdown which is not present as part of the mkdocs base extensions. If you populate a `REQUIREMENTS` environment variable with a path, the action will install the file being pointed by the environment variable.
+
 ## Example usage
 
 ```shell
@@ -56,4 +60,5 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           CUSTOM_DOMAIN: optionaldomain.com
           CONFIG_FILE: folder/mkdocs.yml
+          REQUIREMENTS: folder/requirements.txt
 ```

action.sh

@@ -6,14 +6,9 @@ function print_info() {
     echo -e "\e[36mINFO: ${1}\e[m"
 }
 
-if [ -n "${REQUIREMENTS}" ] && [ -f "${GITHUB_WORKSPACE}/${REQUIREMENTS}" ]; then
-    pip install -r "${GITHUB_WORKSPACE}/${REQUIREMENTS}"
-else
-    REQUIREMENTS="${GITHUB_WORKSPACE}/requirements.txt"
-    if [ -f "${REQUIREMENTS}" ]; then
-        pip install -r "${REQUIREMENTS}"
-    fi
-fi
+if  [ -f "${GITHUB_WORKSPACE}/${REQUIREMENTS}" ]; then 
+    pip install -r "${GITHUB_WORKSPACE}/${REQUIREMENTS}" 
+fi 
 
 if [ -n "${CUSTOM_DOMAIN}" ]; then
     print_info "Setting custom domain for github pages"