- added post_url for better extending of post sub-url

- added example of dynamic usage of action based on committed files
- fixed Uncaught TypeError when no base_url specified

README.md

@@ -23,6 +23,10 @@ Github Action for posting a markdown post to medium.com
 
 Base blog's url e.g. https://myblog.com
 
+### `post_url`
+
+Base blog's post url e.g. https://myblog.com/posts. If not specified, `base_url` is used. 
+
 ### `post_status`
 
 Post's status. Valid values are `draft`, `public`, or `unlisted`. Default `draft`. 
@@ -42,8 +46,10 @@ ID of the created post.
 Medium URL of the created post.
 
 ## Example usage
-Let's assume the post markdown file is located at `./content/post.md`.
 
+### Post content from static file
+
+Let's assume the post markdown file is located at `./content/post.md`.
 ```yaml
 name: publish-to-medium
 on: [push]
@@ -55,10 +61,53 @@ jobs:
       - name: Read the post
         id: post
         run: echo "::set-output name=data::$(cat ./content/post.md)"
-      - uses: infraway/medium-post-markdown@v1
+      - uses: infraway/medium-post-markdown@v1.3.0
         with:
           app_id: ${{ secrets.MEDIUM_APP_ID }}
           app_secret: ${{ secrets.MEDIUM_APP_SECRET }}
           access_token: ${{ secrets.MEDIUM_ACCESS_TOKEN }}
           markdown: ${{ steps.post.outputs.data }}
 ```
+
+### Post content from newly committed file
+
+This example gets files from commit, find blog posts and publish it to Medium.
+
+- `steps.files.outputs.added_modified` extracts add+modified files. If you need added only, use `steps.files.outputs.added` instead.
+- `content/posts` - a repo folder, which contains markdown posts. Replace with your own. 
+- `steps.posts.outputs.post0` - markdown posts path, it will contain as many as you have added `post0`, `post1`, `post2`. 
+
+```yaml
+name: publish-to-medium
+on: [push]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - id: files
+      uses: jitterbit/get-changed-files@v1
+      - id: posts
+        name: Detecting posts from the changes
+        run: |
+          i=0
+          for changed_file in ${{ steps.files.outputs.added_modified }}; do
+            echo "Do something with ${changed_file}."
+            if [[ "${changed_file}" == "content/posts"* ]];
+            then
+              echo "File ${changed_file} matched post."
+              echo "::set-output name=post${i}::${changed_file}"
+              ((i=i+1))
+            fi
+          done
+      - if: steps.posts.outputs.post0
+        name: Publish to medium
+        uses: infraway/post-medium-action@v1.3.0
+        with:
+          app_id: ${{ secrets.MEDIUM_APP_ID }}
+          app_secret: ${{ secrets.MEDIUM_APP_SECRET }}
+          access_token: ${{ secrets.MEDIUM_ACCESS_TOKEN }}
+          markdown_file: ${{ steps.posts.outputs.post0 }}
+          base_url: https://myblog.com
+          post_url: https://myblog.com/posts
+```

action.yml

@@ -16,7 +16,11 @@ inputs:
     description: "Markdown post file"
     required: true
   base_url:
-    description: "Base blog's URL"
+    description: "Base blog's URL. Example: https://myblog"
+    required: false
+    default: ""
+  post_url:
+    description: "Base blog's post URL. Example: https://myblog/posts"
     required: false
     default: ""
   post_status:

index.js

@@ -9,6 +9,7 @@ const {
 
   INPUT_MARKDOWN_FILE,
   INPUT_BASE_URL,
+  INPUT_POST_URL,
   INPUT_POST_STATUS = sdk.PostPublishStatus.DRAFT,
   INPUT_POST_LICENSE = sdk.PostLicense.ALL_RIGHTS_RESERVED,
 } = process.env;
@@ -61,6 +62,9 @@ const getFileContents = async (filepath) => {
 };
 
 const replaceLocalLinks = (content) => {
+  if (!INPUT_BASE_URL) {
+    return content;
+  }
   return content.replace(/\]\((\/[^\)]+)\)/gi, `](${INPUT_BASE_URL}$1)`)
 };
 
@@ -70,7 +74,8 @@ const replaceLocalLinks = (content) => {
     const { id } = await getUser();
     const { meta, markdown } = md(replaceLocalLinks(data));
     const { title, tags = [], slug } = meta || {};
-    const postUrl = `${INPUT_BASE_URL}/posts/${slug}`;
+    const postBaseUrl = INPUT_POST_URL || INPUT_BASE_URL || '';
+    const postUrl = [postBaseUrl.replace(/\/+$/, ''), slug].join('/');
     const post = await createPost(id, postUrl, title, tags, markdown);
     console.log(`::set-output name=id::${post.id}`);
     console.log(`::set-output name=url::${post.url}`);